CN104022339A - Green, mixed and reconfigurable mobile phone antenna - Google Patents

Abstract

The purpose of the present invention is to provide a green hybrid reconfigurable mobile phone antenna, including a first dielectric board, a straight active oscillator, a snake-shaped active oscillator, an upper passive oscillator, a front passive oscillator, a rear passive oscillator, and an upper passive oscillator. The source oscillator is printed on the upper surface of the first dielectric board, the straight active oscillator, the front passive oscillator and the rear passive oscillator are printed on the lower surface of the first dielectric board, and the front passive oscillator and the rear passive oscillator are respectively located on the On the front and rear sides of the straight active vibrator, the serpentine active vibrator includes the first-second serpentine active vibrator, the first-second serpentine active vibrator is respectively located at the left and right ends of the straight active vibrator and is The vibrator is symmetrical to the center, and the straight active vibrator is connected to the feeder. The invention can switch between omnidirectional and directional according to the state of the mobile phone call, realize "green" call, reduce the SAR value of the antenna to the human body, and switch the working frequency band according to the call demand at the same time, thereby widening the working bandwidth of the antenna and realizing the frequency and direction diagram Also reconfigurable.

Description

A Green Hybrid Reconfigurable Mobile Phone Antenna

technical field

The invention relates to an antenna, specifically a mobile phone antenna.

Background technique

In recent years, with the rapid development of wireless communication technology, the role of wireless communication in people's lives has become more and more prominent. As the fastest growing mobile terminal in the wireless communication industry, mobile phones have become an indispensable part of people's daily life. At the same time, with the improvement of the quality of life, people's health awareness is gradually enhanced, and the electromagnetic radiation produced by mobile phones has gradually attracted people's attention. How to effectively reduce the Specific Absorption Rate (Specific Absorption Rate) value of mobile phones and reduce the impact of mobile phone radiation electromagnetic waves on the human body has become an urgent problem to be solved. Mobile phone antennas are divided into built-in and external antennas according to their structure. External antennas mainly include: helical antennas, monopole antennas, etc.; built-in antennas mainly include: monopole antennas, IFA antennas, PIFA antennas, ceramic antennas, etc. The external antenna has the advantages of frequency bandwidth and strong signal, but because the external antenna is exposed to the outside of the mobile phone, the SAR value of the antenna is higher than that of the internal antenna. Reconfigurable antennas can be divided into frequency reconfigurable antennas, pattern reconfigurable antennas, frequency and pattern reconfigurable antennas, and polarization reconfigurable antennas according to their functions. The specific implementation method is to load a varactor diode, RF-PIN or MEMS switch in the antenna radiator, and change the radiation characteristics of the antenna by controlling the state of the switch, so that one antenna has the function of multiple antennas. Reconfigurable antennas provide important technical support for improving the capacity of wireless communication systems, expanding system functions, increasing system operating bandwidth, and realizing software radio, etc., which will have a profound impact on wireless communication technology.

At present, most of the reconfigurable antennas studied only realize the reconstruction of one of the characteristic parameters in the pattern, frequency and polarization mode, and the hybrid reconfigurable antenna is difficult to realize due to the large number of variable parameters. As people's demand for wireless communication technology increases, wireless communication terminal equipment will have more and more functions, and the working frequency band will become wider and wider. The appearance of the green hybrid reconfigurable mobile phone antenna can not only effectively reduce the radiation of the antenna to the human body, but also realize the broadband operation of the antenna, which has practical significance for the multi-functionalization of wireless terminal products. Therefore, the green pattern and frequency at the same time Reconfigurable mobile phone antennas have huge market application value.

Wenxing Li et al. proposed a pattern reconfigurable mobile phone antenna in the article "A Novel Radiation Pattern Reconfigurable Antenna". Although the radiation of the antenna to the human body is reduced by reconfiguring the pattern, it cannot cover the GSM900 frequency band, and its application range is narrow. Therefore, designing a miniaturized antenna with both frequency and pattern reconfigurable functions is of great importance to increase the practicability of the antenna. Significance.

Contents of the invention

The purpose of the present invention is to provide a green hybrid reconfigurable mobile phone antenna that widens the working bandwidth of the antenna and realizes reconfigurable frequency and pattern at the same time.

The purpose of the present invention is achieved like this:

A green hybrid reconfigurable mobile phone antenna of the present invention is characterized in that it includes a first dielectric board, a straight active vibrator, a serpentine active vibrator, an upper passive vibrator, a front passive vibrator, a rear passive vibrator, and an upper passive vibrator. The source oscillator is printed on the upper surface of the first dielectric board, the straight active oscillator, the front passive oscillator and the rear passive oscillator are printed on the lower surface of the first dielectric board, and the front passive oscillator and the rear passive oscillator are respectively located on the On the front and rear sides of the straight active vibrator, the serpentine active vibrator includes the first-second serpentine active vibrator, the first-second serpentine active vibrator is respectively located at the left and right ends of the straight active vibrator and is The vibrator is symmetrical to the center, and the straight active vibrator is connected to the feeder.

The present invention may also include:

1. The first snake-shaped active vibrator is connected to the straight active vibrator through the first MEMS switch, and the second snake-shaped active vibrator is connected to the straight active vibrator through the second MEMS switch; the upper passive vibrator is equipped with the third-third Four MEMS switches, the third-fourth MEMS switches are arranged symmetrically with respect to the center of the upper passive vibrator; the fifth-seventh MEMS switches are set on the front passive vibrator, the sixth MEMS switch is located at the center of the front passive vibrator, and the fifth The MEMS switch and the seventh MEMS switch are symmetrical to the sixth MEMS switch, the eighth-tenth MEMS switch is set on the rear passive oscillator, the ninth MEMS switch is located at the center of the rear passive oscillator, the eighth MEMS switch and the tenth MEMS switch The switch is symmetrical with respect to the ninth MEMS switch.

2. The straight active vibrator is a rectangular patch;

One end of the first snake-shaped active oscillator connected to the first MEMS switch is narrower than the other end of the first snake-shaped active oscillator, and the apex angle corresponding to the connecting line between the wide end and the narrow end of the first snake-shaped active oscillator is 6.2 degrees, The second snake-shaped active oscillator has the same structure as the first snake-shaped active oscillator;

The distance between the straight active oscillator and the upper passive oscillator is 0.009 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the straight active oscillator is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the serpentine has The length of the source oscillator is 0.112 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, the distance between the first-second MEMS switch and the feeder is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the upper passive oscillator The length is 0.176 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The distance between the third-fourth MEMS switch is 0.106 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The distance between the fifth MEMS switch and the seventh MEMS switch and the sixth MEMS switch is 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the eighth MEMS switch and the tenth MEMS switch and the ninth MEMS switch is 0.059 times Green mixing reconfigures the wavelength of the mobile phone antenna itself;

The distance between the straight active oscillator and the front passive oscillator and the distance between the straight active oscillator and the rear passive oscillator are both 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself.

A green hybrid reconfigurable mobile phone antenna of the present invention is characterized in that it includes a first-second dielectric plate, a straight active vibrator, a serpentine active vibrator, an upper passive vibrator, a lower passive vibrator, and a front passive vibrator , Rear passive vibrator, arranged up and down between the first dielectric plate and the second dielectric plate, the upper passive vibrator is printed on the upper surface of the first dielectric plate, the straight active vibrator, the front passive vibrator and the rear passive vibrator are parallel to each other The vibrator is printed on the lower surface of the first dielectric board and the upper surface of the second dielectric board at the same time, the lower passive vibrator is printed on the lower surface of the second dielectric board, the front passive vibrator and the rear passive vibrator are respectively located on the side of the straight active vibrator On the front and rear sides, the serpentine active vibrator includes the first-second serpentine active vibrator. The first-second serpentine active vibrator is respectively located at the left and right ends of the straight active vibrator and is symmetrical about the center of the straight active vibrator. The active vibrator is connected to the feeder.

The present invention may also include:

1. The first snake-shaped active vibrator is connected to the straight active vibrator through the first MEMS switch, and the second snake-shaped active vibrator is connected to the straight active vibrator through the second MEMS switch; the fifth-third active vibrator is set on the front passive vibrator Seven MEMS switches, the sixth MEMS switch is located at the center of the front passive vibrator, the fifth MEMS switch and the seventh MEMS switch are symmetrical to the sixth MEMS switch, the eighth-tenth MEMS switch is set on the rear passive vibrator, the ninth The MEMS switch is located at the center of the rear passive oscillator, and the eighth MEMS switch and the tenth MEMS switch are symmetrical to the ninth MEMS switch.

2. The straight active vibrator is a rectangular patch;

One end of the first snake-shaped active oscillator connected to the first MEMS switch is narrower than the other end of the first snake-shaped active oscillator, and the apex angle corresponding to the connecting line between the wide end and the narrow end of the first snake-shaped active oscillator is 6.2 degrees, The second snake-shaped active oscillator has the same structure as the first snake-shaped active oscillator;

The distance between the straight active oscillator and the upper passive oscillator is 0.009 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the straight active oscillator is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the serpentine has The length of the source oscillator is 0.112 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the first-second MEMS switch and the feeder is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The distance between the third-fourth MEMS switch is 0.106 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The distance between the fifth MEMS switch and the seventh MEMS switch and the sixth MEMS switch is 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the eighth MEMS switch and the tenth MEMS switch and the ninth MEMS switch is 0.059 times Green mixing reconfigures the wavelength of the mobile phone antenna itself;

The spacing between the straight active oscillator and the front passive oscillator and the distance between the straight active oscillator and the rear passive oscillator are both 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The length of the upper passive oscillator is 0.096 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the lower passive oscillator is 0.176 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself.

3. The first snake-shaped active vibrator is connected to the straight active vibrator through the first MEMS switch, and the second snake-shaped active vibrator is connected to the straight active vibrator through the second MEMS switch; the third-th Four MEMS switches, the third-fourth MEMS switches are arranged symmetrically with respect to the center of the upper passive vibrator; the fifth-seventh MEMS switches are set on the front passive vibrator, the sixth MEMS switch is located at the center of the front passive vibrator, and the fifth The MEMS switch and the seventh MEMS switch are symmetrical to the sixth MEMS switch, the eighth-tenth MEMS switch is set on the rear passive oscillator, the ninth MEMS switch is located at the center of the rear passive oscillator, the eighth MEMS switch and the tenth MEMS switch The switches are symmetrical with respect to the ninth MEMS switch, the eleventh-twelfth MEMS switches are arranged on the lower passive oscillator, and the eleventh-twelfth MEMS switches are arranged symmetrically with respect to the center of the lower passive oscillator.

4. The straight active vibrator is a rectangular patch;

One end of the first snake-shaped active oscillator connected to the first MEMS switch is narrower than the other end of the first snake-shaped active oscillator, and the apex angle corresponding to the connecting line between the wide end and the narrow end of the first snake-shaped active oscillator is 6.2 degrees, The second snake-shaped active oscillator has the same structure as the first snake-shaped active oscillator;

The distance between the straight active oscillator and the upper passive oscillator is 0.009 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the straight active oscillator is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the serpentine has The length of the source oscillator is 0.112 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, the distance between the first-second MEMS switch and the feeder is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the upper passive oscillator The length is 0.176 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The distance between the third-fourth MEMS switch is 0.106 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself;

The distance between the fifth MEMS switch and the seventh MEMS switch and the sixth MEMS switch is 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the eighth MEMS switch and the tenth MEMS switch and the ninth MEMS switch is 0.059 times Green mixing reconfigures the wavelength of the mobile phone antenna itself;

The distance between the straight active oscillator and the front passive oscillator and the distance between the straight active oscillator and the rear passive oscillator are both 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself.

The advantages of the present invention are:

1. The pattern of the antenna can be switched between omnidirectional and directional according to the actual call status. When the mobile phone is in the standby state, the antenna radiation pattern is omnidirectional. When the mobile phone enters the talking state, the antenna radiation pattern is reconstructed. At this time, the gain of the antenna facing the human body is reduced, and the gain of the antenna facing away from the human body is enhanced, and the maximum radiation direction of the directional pattern always avoids the human body.

2. The working frequency of the antenna will be switched according to the current frequency band of the mobile phone call, which can effectively broaden the working frequency band of the antenna.

3. The antenna has the functions of same-frequency pattern reconstruction, same-pattern frequency reconstruction, and pattern and frequency simultaneous reconstruction (that is, hybrid reconstruction), which broadens the working frequency band and enhances the controllability of the pattern. Under the premise of ensuring the signal receiving ability, the radiation of the antenna to the human body is minimized to achieve a real "green" call.

4. The antenna adopts the snake-shaped active vibrator buried technology, which greatly reduces the structural size of the antenna, making it possible for the microstrip Yagi patch antenna to be applied in mobile devices such as mobile phones.

5. The antenna adopts the MEMS switch technology loaded on the stacked passive vibrator, so that the antenna can realize the reconstruction of the pattern in the vertical direction, increase the degree of freedom of the antenna orientation pattern, and improve the performance of the antenna.

Description of drawings

Fig. 1 is the top view of basic structure of the present invention (not containing dielectric plate);

Fig. 2 is the front view of basic structure of the present invention;

Fig. 3 is the top view of the inner layer of the basic structure of the present invention (without dielectric board);

Fig. 4 is a schematic diagram of the radiation direction of the antenna under the state of no call in the present invention;

FIG. 5 is a schematic diagram of the radiation direction of the antenna in a talking state according to the present invention. ;

Fig. 6 is a perspective view of the basic structure of the present invention.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

Implementation mode 1:

In combination with Figures 1 to 6, a green hybrid reconfigurable mobile phone antenna includes a straight active vibrator 101 connected to a feeder 401, which are symmetrically arranged on the front and rear sides of the straight active vibrator 101 and horizontally parallel to the straight active vibrator 101. The front passive oscillator 102 and the rear passive oscillator 103, the serpentine active oscillator 106 located at both ends of the straight active oscillator 101 and symmetrical about the center of the straight active oscillator 101, is characterized in that: the straight active oscillator 101 is Rectangular patch, the serpentine active vibrator 106 is connected to the straight active vibrator 101 through two symmetrically arranged MEMS switches 201, the serpentine active vibrator 106 is narrower at the end of the MEMS switch 201, and wider at the end away from the MEMS switch 201; An upper passive oscillator 104 parallel to the straight active oscillator 101 is arranged above the straight active oscillator 101 , and an upper dielectric plate 301 is between the straight active oscillator 101 and the upper passive oscillator 104 .

Wherein, a lower passive oscillator 105 parallel to the straight active oscillator 101 is also arranged below the active oscillator 101 . The distance between the straight active oscillator 101 and the upper passive oscillator 104 and the distance between the straight active oscillator 101 and the lower passive oscillator 105 are both 0.009 times the wavelength.

Wherein, the lower passive oscillator 105 is provided with two MEMS switches 201 , and the positions of the two MEMS switches 201 are arranged symmetrically with respect to the center of the lower passive oscillator 105 . The distance between the two MEMS switches (201) is 0.106 times the wavelength.

Wherein, the length of the straight active oscillator 101 is 0.128 times the wavelength, the length of the serpentine active oscillator 106 is 0.112 times the wavelength, and the distance between the two MEMS switches 201 and the feeder 401 is 0.128 times the wavelength. The length of the upper passive oscillator 104 is 0.176 times the wavelength.

Wherein, it is mentioned that two MEMS switches 201 are arranged on the passive vibrator 104 , and the positions of the two MEMS switches 201 are arranged symmetrically with respect to the center of the upper passive vibrator 104 . The distance between the two MEMS switches (201) is 0.106 times the wavelength.

Wherein, the front passive vibrator 102 and the rear passive vibrator 103 are respectively provided with three MEMS switches 201, wherein one MEMS switch 201 is located at the center of the passive vibrator 102, 103, and the other two MEMS switches 201 are relatively The passive oscillators 102, 103 are arranged symmetrically about the center, and the distance between them and the MEMS switch 201 at the center is 0.059 times the wavelength.

Among them, the upper dielectric plate 301 is between the straight active oscillator 101 and the upper passive oscillator 104, the lower dielectric plate 302 is between the straight active oscillator 101 and the lower passive oscillator 105, and the material of the upper dielectric plate 301 and the lower dielectric plate 302 is Similarly, the straight active oscillator 101 and the serpentine active oscillator 106 are all buried between the upper dielectric plate 301 and the lower dielectric plate 302 .

Wherein, the distance between the straight active oscillator 101 and the front passive oscillator 102 and the distance between the straight active oscillator 101 and the rear passive oscillator 103 are both 0.059 times the wavelength.

Wherein, the apex angle corresponding to the line connecting the wide end and the narrow end of the serpentine active oscillator 106 is 6.2 degrees.

By controlling the state of the MEMS switch 201 on the passive vibrator 102, 103, 104, 105, changing the current phase difference between the antenna passive vibrator and the straight active vibrator 101 and the serpentine active vibrator 106, while ensuring that the operating frequency of the antenna is not In the case of changes, the reconstruction of the omnidirectional pattern and the directional pattern of the antenna is realized. It can be seen from FIG. 3 that the active oscillator includes two parts: a straight active oscillator 101 and a serpentine active oscillator 106. The serpentine active oscillator 106 can effectively shorten the size of the antenna and realize the miniaturization of the antenna. The straight active vibrator 101 and the serpentine active vibrator 106 are connected through the MEMS switch 201. Switching the state of the MEMS switch 201 can realize the switching of the antenna working frequency between the GSM900 frequency band and the DCS1800 frequency band to achieve the purpose of reconfiguring the antenna frequency. The antenna structure is symmetrical, so the corresponding pattern can remain unchanged during frequency reconfiguration. When the MEMS switch 201 on the direct active dipole 101 and the passive dipole 102 , 103 , 104 , and 105 switches the switching state at the same time, hybrid reconstruction of the antenna pattern and frequency can be realized.

The working frequency of the antenna will be switched according to the frequency band of the current mobile phone call, and the pattern of the antenna will be switched between omnidirectional and directional according to the actual call status. When the mobile phone is in the standby state, the antenna radiation pattern is omnidirectional, and when the mobile phone enters the talking state, the antenna radiation pattern is reconstructed. At this time, the gain of the antenna facing the human body is reduced, and the gain of the antenna facing away from the human body is enhanced. The maximum radiation direction of the directional pattern always avoids the human body, which effectively ensures the quality of the call. The antenna’s backward radiation is very small, which can effectively reduce the SAR value. , reduce harmful radiation to the human body. At the same time, the antenna has strong anti-interference ability, wide operating frequency range, good antenna gain, compact and symmetrical structure, easy processing and design, convenient mass production, and low cost.

The present invention realizes the reconstruction of the antenna pattern by controlling the switching state of the MEMS switch 201, reduces the gain of the pattern toward the human body, reduces the radiation of the antenna to the human body, and realizes "green" communication. By controlling the state of the MEMS switch 201, the reconfiguration of the working frequency of the antenna is realized. The working frequency covers the GSM900 frequency band and the DCS1800 frequency band, widens the working bandwidth of the antenna, and realizes reconfiguration of the pattern frequency at the same time. The antenna can be used on portable mobile terminals such as mobile phones.

Implementation mode 2:

A hybrid reconfigurable green mobile phone antenna described in the invention. Among them, including the straight active oscillator 101 connected to the feeder line 401, the front passive oscillator 102 and the rear passive oscillator 103 are arranged symmetrically on the front and rear sides of the straight active oscillator 101 and horizontally parallel to the straight active oscillator 101, located in the straight Serpentine active oscillator 106 at both ends of active oscillator 101 and symmetrical to the center of straight active oscillator 101. Straight active oscillator 101 is a rectangular patch. Serpentine active oscillator 106 and straight active oscillator 101 are arranged symmetrically through two The MEMS switch 201 is connected, the serpentine active vibrator 106 is narrower at one end of the MEMS switch 201, and wider at the end away from the MEMS switch 201; the apex angle corresponding to the wide end and the narrow end of the serpentine active vibrator 106 is 6.2 degrees, The serpentine active oscillator 106 is connected to the straight active oscillator 101 through the MEMS switch 201; an upper passive oscillator 104 parallel to the straight active oscillator 101 is arranged above the straight active oscillator 101, and the straight active oscillator 101 There is also a lower passive oscillator 105 parallel to the straight active oscillator 101, the length of the straight active oscillator 101 is 0.24 times the wavelength, and the length of the upper passive oscillator 104 and the lower passive oscillator 105 are both 0.176 times the wavelength ; The front passive vibrator 102 and the rear passive vibrator 103 are respectively provided with three MEMS switches 201, wherein one MEMS switch 201 is located at the center position of the passive vibrator 102 and the passive vibrator 103, and the other two MEMS switches 201 are respectively relative to The passive oscillator 102 and the passive oscillator 103 are center-symmetrically arranged; the upper passive oscillator 104 is provided with two MEMS switches 201 , and the positions of the two MEMS switches 201 are arranged symmetrically with respect to the center of the upper passive oscillator 104 . Two MEMS switches 201 are arranged on the lower passive oscillator 105 , and the positions of the two MEMS switches 201 are arranged symmetrically with respect to the center of the lower passive oscillator 105 .

In the hybrid reconfigurable green mobile phone antenna, the working frequency band of the antenna is controlled by opening (closing) two MEMS switches 201 on the straight active oscillator 101 . When the two MEMS switches 201 on the straight active oscillator 101 are closed, the serpentine active oscillator 106 makes the current distribution path longer, which effectively shortens the size of the antenna and lowers the working frequency band. The antenna works in the GSM900 frequency band. When the two MEMS switches 201 on the straight active vibrator 101 are turned off, the current distribution path on the straight active vibrator 101 becomes shorter, and the antenna works in the DCS1800 frequency band. Since the antenna structure is symmetrical, the corresponding pattern can remain unchanged during frequency reconfiguration.

The opening (or closing) of the MEMS switch 201 controls the closing (or opening) of the front passive oscillator 102 and the opening (or closing) of the rear passive oscillator 103, so that the front passive oscillator 102 works as a reflection oscillator ( Or guide the oscillator) state, make the rear passive oscillator 103 work in the guide oscillator (or reflector) state, control the reconstruction of the antenna pattern in the horizontal direction; by the disconnection (or closure) of the MEMS switch 201, control the upper The opening (or closing) of the passive oscillator 104 and the closing (or opening) of the lower passive oscillator 105 make the upper passive oscillator 104 work in the state of guiding the oscillator (or reflecting oscillator), and the lower passive oscillator 105 works in the Reflecting the state of the vibrator (or directing the vibrator) controls the reconstruction of the antenna pattern in the vertical direction; simultaneously controls all the MEMS switches 201 to realize the reconstruction of the multi-directional pattern of the antenna. Since the current distribution path on the straight active dipole 101 does not change, the working frequency band of the antenna can remain unchanged while the radiation pattern is reconfigured. When the MEMS switch 201 on the direct active oscillator and the MEMS switch 201 on the passive oscillator 101 switch the switch states simultaneously, hybrid reconstruction of the antenna pattern and frequency can be realized.

The working frequency of the antenna will be switched according to the frequency band of the current mobile phone call, and the pattern of the antenna will be switched between omnidirectional and directional according to the actual call status. When the mobile phone is in the standby state, the antenna radiation pattern is omnidirectional. When the mobile phone enters the talking state, the antenna radiation pattern is reconstructed. The gain of the antenna facing the human body is reduced, and the antenna gain of the side facing away from the human body is enhanced. The maximum radiation direction of the directional pattern always avoids the human body, effectively ensuring the quality of the call. The antenna’s backward radiation is very small, which can effectively reduce the SAR value. Reduce harmful radiation to the human body. At the same time, the antenna has strong anti-interference ability, wide operating frequency range, good antenna gain, compact and symmetrical structure, easy processing and design, convenient mass production, and low cost.

In the hybrid reconfigurable green mobile phone antenna, the upper passive vibrator 104 is printed on the upper surface of the dielectric substrate 301, and the straight active vibrator 101, front passive vibrator 102 and rear passive vibrator 103 of the antenna are printed on the dielectric substrate 301. The upper surface of the substrate 302 (that is, the lower surface of the dielectric base 301), the lower passive oscillator 105 is printed on the lower surface of the dielectric substrate 302, the straight active oscillator 101, the front passive oscillator 102 and the rear passive oscillator 103 are dielectric buried structures , effectively reducing the antenna size. The materials of the dielectric substrates 301 and 302 can be changed according to different application occasions. The direct active vibrator 101 is connected to the balancer 401 . In practice, the balancer is realized by metal plate wires.

Implementation mode 3:

In another implementation example of the present invention, on the basis of implementation example 2, the lower passive oscillator 105 and the dielectric plate 302 are deleted. The upper passive oscillator 104 is printed on the upper surface of the dielectric substrate 301 , and the straight active oscillator 101 , serpentine active oscillator 106 , front passive oscillator 102 and rear passive oscillator 103 are printed on the lower surface of the dielectric board 301 . The upper passive oscillator 104 is parallel to the straight active oscillator 101, and the length of the upper passive oscillator 104 is 0.176 times the wavelength.

The described a kind of hybrid reconfigurable green mobile phone antenna controls the closing (or opening) of the front passive vibrator 102 and the opening (or closing) of the rear passive vibrator 103 by the opening (or closing) of the MEMS switch 201. ), make the front passive oscillator 102 work in the reflective oscillator (or directing oscillator) state, make the rear passive oscillator 103 work in the directing oscillator (or reflecting oscillator) state, and control the reconstruction of the antenna pattern in the horizontal direction; by The opening (or closing) of the MEMS switch 201 controls the opening (or closing) of the upper passive oscillator 104, making the upper passive oscillator 104 work in the state of guiding the oscillator (or reflecting oscillator), and controlling the antenna pattern in the vertical direction Reconfiguration of the antenna pattern; all MEMS switches 201 are controlled at the same time to realize the omnidirectional reconfiguration of the antenna pattern.

Implementation mode 4:

Another implementation example of the present invention is based on the implementation example 3, the two MEMS switches 201 on the upper passive oscillator 104 are deleted, and the lower dielectric plate 302 and the lower passive oscillator 101 are added below the straight active oscillator 101. The source oscillator 105, the upper dielectric plate 301 and the lower dielectric plate 302 are made of the same material. The lower passive oscillator 105 is printed on the lower surface of the dielectric substrate 302, and the straight active oscillator 101, serpentine active oscillator 106, front passive oscillator 102 and rear passive oscillator 103 are all buried in the upper dielectric plate 301 and the lower dielectric plate Between 302. The upper passive oscillator 104 and the lower passive oscillator 105 are respectively symmetrical to the upper and lower sides of the straight active oscillator 101 and parallel to the straight active oscillator 101. The length of the upper passive oscillator 104 is 0.096 times the wavelength; the length of the lower passive oscillator 105 is It is 0.176 times the wavelength.

The hybrid reconfigurable green mobile phone antenna mentioned above effectively reduces the size and structure of the antenna because the straight active oscillator 101 and the serpentine active oscillator 106 are buried between the upper dielectric plate 301 and the lower dielectric plate 302 ; The length of the upper passive vibrator 104 is shorter than the straight active vibrator 101, and the upper passive vibrator 104 works in the state of guiding the vibrator; the length of the lower passive vibrator 105 is greater than the total length of the straight active vibrator 101 and the serpentine active vibrator 106, and the lower passive vibrator 105 is longer than the total length of the straight active vibrator 101 and the serpentine active vibrator 106. The source oscillator 105 works in the reflector state, and the antenna pattern is located in the upper half space in the vertical direction. The length of the upper passive oscillator 104 and the lower passive oscillator 105 can be adjusted according to the communication requirements, that is, the antenna pattern can be changed in the vertical plane. In the beam width, the directivity of the antenna pattern in this application example is enhanced, the energy is more concentrated, and the utilization rate of antenna energy is improved; since the number of MEMS switches 201 is reduced, the complexity and cost of the antenna are reduced.

Claims (8)

1. A green hybrid reconfigurable mobile phone antenna, characterized in that it includes a first dielectric plate, a straight active vibrator, a serpentine active vibrator, an upper passive vibrator, a front passive vibrator, a rear passive vibrator, and an upper passive vibrator. The source oscillator is printed on the upper surface of the first dielectric board, the straight active oscillator, the front passive oscillator and the rear passive oscillator are printed on the lower surface of the first dielectric board, and the front passive oscillator and the rear passive oscillator are respectively located on the On the front and rear sides of the straight active vibrator, the serpentine active vibrator includes the first-second serpentine active vibrator, the first-second serpentine active vibrator is respectively located at the left and right ends of the straight active vibrator and is The vibrator is symmetrical to the center, and the straight active vibrator is connected to the feeder. 2. A green hybrid reconfigurable mobile phone antenna according to claim 1, characterized in that: the first serpentine active vibrator is connected to the straight active vibrator through the first MEMS switch, and the second serpentine active vibrator is connected to the straight active vibrator. The straight active vibrator is connected through the second MEMS switch; the third-fourth MEMS switch is set on the upper passive vibrator, and the third-fourth MEMS switch is arranged symmetrically with respect to the center of the upper passive vibrator; the fifth one is set on the front passive vibrator - The seventh MEMS switch, the sixth MEMS switch is located at the center of the front passive vibrator, the fifth MEMS switch and the seventh MEMS switch are symmetrical to the sixth MEMS switch, and the eighth-tenth MEMS switch is set on the rear passive vibrator, The ninth MEMS switch is located at the center of the rear passive oscillator, and the eighth MEMS switch and the tenth MEMS switch are symmetrical to the ninth MEMS switch. 3. A kind of green hybrid reconfigurable mobile phone antenna according to claim 2, characterized in that: The straight active vibrator is a rectangular patch; One end of the first snake-shaped active oscillator connected to the first MEMS switch is narrower than the other end of the first snake-shaped active oscillator, and the apex angle corresponding to the connecting line between the wide end and the narrow end of the first snake-shaped active oscillator is 6.2 degrees, The second snake-shaped active oscillator has the same structure as the first snake-shaped active oscillator; The distance between the straight active oscillator and the upper passive oscillator is 0.009 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the straight active oscillator is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the serpentine has The length of the source oscillator is 0.112 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, the distance between the first-second MEMS switch and the feeder is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the upper passive oscillator The length is 0.176 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The distance between the third-fourth MEMS switch is 0.106 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The distance between the fifth MEMS switch and the seventh MEMS switch and the sixth MEMS switch is 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the eighth MEMS switch and the tenth MEMS switch and the ninth MEMS switch is 0.059 times Green mixing reconfigures the wavelength of the mobile phone antenna itself; The distance between the straight active oscillator and the front passive oscillator and the distance between the straight active oscillator and the rear passive oscillator are both 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself. 4. A green hybrid reconfigurable mobile phone antenna, characterized by: including the first-second dielectric board, straight active oscillator, serpentine active oscillator, upper passive oscillator, lower passive oscillator, front passive oscillator , Rear passive vibrator, arranged up and down between the first dielectric plate and the second dielectric plate, the upper passive vibrator is printed on the upper surface of the first dielectric plate, the straight active vibrator, the front passive vibrator and the rear passive vibrator are parallel to each other The vibrator is printed on the lower surface of the first dielectric board and the upper surface of the second dielectric board at the same time, the lower passive vibrator is printed on the lower surface of the second dielectric board, the front passive vibrator and the rear passive vibrator are respectively located on the side of the straight active vibrator On the front and rear sides, the serpentine active vibrator includes the first-second serpentine active vibrator. The first-second serpentine active vibrator is respectively located at the left and right ends of the straight active vibrator and is symmetrical about the center of the straight active vibrator. The active vibrator is connected to the feeder. 5. A green hybrid reconfigurable mobile phone antenna according to claim 4, characterized in that: the first serpentine active vibrator is connected to the straight active vibrator through the first MEMS switch, and the second serpentine active vibrator is connected to the The straight active vibrator is connected through the second MEMS switch; the fifth-seventh MEMS switch is set on the front passive vibrator, the sixth MEMS switch is located at the center of the front passive vibrator, the fifth MEMS switch and the seventh MEMS switch are relative to the first The six MEMS switches are symmetrical, the eighth to tenth MEMS switches are arranged on the rear passive vibrator, the ninth MEMS switch is located at the center of the rear passive vibrator, and the eighth MEMS switch and the tenth MEMS switch are symmetrical to the ninth MEMS switch. 6. A kind of green hybrid reconfigurable mobile phone antenna according to claim 5, characterized in that: The straight active vibrator is a rectangular patch; One end of the first snake-shaped active oscillator connected to the first MEMS switch is narrower than the other end of the first snake-shaped active oscillator, and the apex angle corresponding to the connecting line between the wide end and the narrow end of the first snake-shaped active oscillator is 6.2 degrees, The second snake-shaped active oscillator has the same structure as the first snake-shaped active oscillator; The distance between the straight active oscillator and the upper passive oscillator is 0.009 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the straight active oscillator is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the serpentine has The length of the source oscillator is 0.112 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the first-second MEMS switch and the feeder is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The distance between the third-fourth MEMS switch is 0.106 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The distance between the fifth MEMS switch and the seventh MEMS switch and the sixth MEMS switch is 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the eighth MEMS switch and the tenth MEMS switch and the ninth MEMS switch is 0.059 times Green mixing reconfigures the wavelength of the mobile phone antenna itself; The spacing between the straight active oscillator and the front passive oscillator and the distance between the straight active oscillator and the rear passive oscillator are both 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The length of the upper passive oscillator is 0.096 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the lower passive oscillator is 0.176 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself. 7. A green hybrid reconfigurable mobile phone antenna according to claim 4, characterized in that: the first serpentine active vibrator is connected to the straight active vibrator through the first MEMS switch, and the second serpentine active vibrator is connected to the straight active vibrator. The straight active vibrator is connected through the second MEMS switch; the third-fourth MEMS switch is set on the upper passive vibrator, and the third-fourth MEMS switch is arranged symmetrically with respect to the center of the upper passive vibrator; the fifth one is set on the front passive vibrator - The seventh MEMS switch, the sixth MEMS switch is located at the center of the front passive vibrator, the fifth MEMS switch and the seventh MEMS switch are symmetrical to the sixth MEMS switch, and the eighth-tenth MEMS switch is set on the rear passive vibrator, The ninth MEMS switch is located at the center of the rear passive oscillator, the eighth MEMS switch and the tenth MEMS switch are symmetrical to the ninth MEMS switch, the eleventh-twelfth MEMS switches are set on the lower passive oscillator, and the eleventh- The twelfth MEMS switch is arranged symmetrically with respect to the center of the lower passive oscillator. 8. A kind of green hybrid reconfigurable mobile phone antenna according to claim 7, characterized in that: The straight active vibrator is a rectangular patch; One end of the first snake-shaped active oscillator connected to the first MEMS switch is narrower than the other end of the first snake-shaped active oscillator, and the apex angle corresponding to the connecting line between the wide end and the narrow end of the first snake-shaped active oscillator is 6.2 degrees, The second snake-shaped active oscillator has the same structure as the first snake-shaped active oscillator; The distance between the straight active oscillator and the upper passive oscillator is 0.009 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; the length of the straight active oscillator is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the serpentine has The length of the source oscillator is 0.112 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, the distance between the first-second MEMS switch and the feeder is 0.128 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the upper passive oscillator The length is 0.176 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The distance between the third-fourth MEMS switch is 0.106 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself; The distance between the fifth MEMS switch and the seventh MEMS switch and the sixth MEMS switch is 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself, and the distance between the eighth MEMS switch and the tenth MEMS switch and the ninth MEMS switch is 0.059 times Green mixing reconfigures the wavelength of the mobile phone antenna itself; The distance between the straight active oscillator and the front passive oscillator and the distance between the straight active oscillator and the rear passive oscillator are both 0.059 times the wavelength of the green hybrid reconfigurable mobile phone antenna itself.