TW202327165A - Integrated wideband antenna - Google Patents

Abstract

The disclosure provides an integrated wideband antenna, comprising a first conductor layer, a first conductor patch, a second conductor patch, a feeding conductor structure and a signal source. The first conductor patch has a first coupling edge and a first connecting edge. The first connecting edge electrically connects with the first conductor layer through a first shorting structure. The second conductor patch has a second coupling edge and a second connecting edge. The second connecting edge electrically connects with the first conductor layer through a second shorting structure. The second coupling edge is spaced apart from the first coupling edge at a third interval forming a resonant open slot. The feeding conductor structure is located within the resonant open slot and has a first conductor line, a second conductor line and a third conductor line. The first conductor line is spaced apart from the first coupling edge with a first coupling interval. The second conductor line is spaced apart from the second coupling edge with a second coupling interval. The third conductor line electrically connects the first conductor line and the second conductor line. The signal source is electrically coupled to the feeding conductor structure. The signal source excites the integrated wideband antenna to generate one multi-resonace mode covering at least one first communication band.

Description

Integrated Broadband Antenna

The technical field to which the present invention belongs relates to an integrated broadband antenna design, in particular to an integrated broadband antenna design framework capable of achieving multi-antenna integration.

In order to improve the wireless communication quality and data transmission rate, the development of broadband antenna design is required. And with the application of multiple-input multiple-output (MIMO, Multi-Input Multi-Output System) multi-antenna architecture and beamforming multi-antenna array architecture, it becomes popular. Antenna design with wideband and multi-antenna array integration advantages has become one of the hot research topics. However, how to successfully design the broadband antenna unit into a highly integrated multi-antenna array while achieving the advantages of good matching and good isolation is a difficult technical challenge.

A plurality of adjacent antennas operating in the same frequency band may cause problems of mutual coupling and interference as well as coupling and interference of the adjacent environment. Therefore, the isolation between multiple antennas may deteriorate, resulting in attenuation of antenna radiation characteristics. As a result, the data transmission speed is reduced, and it is difficult to implement multi-antenna integration.

Some previous technical literatures have proposed to design a periodic structure on the multi-antenna indirect ground as an energy isolator to improve the energy isolation between multi-antennas and the design method of resisting interference from adjacent environments. However, such a design method may cause unstable factors in the manufacturing process, which in turn may increase the cost of mass production. And it may cause additional coupling current to be excited, which will cause the correlation coefficient between multiple antennas to increase. In addition, it is also possible to increase the overall size of the multi-antenna array, so it is not easy to be implemented in various wireless devices or devices.

Therefore, there is a need for a design method that can solve the above-mentioned problems, so as to meet the actual application requirements of high data transmission speed communication devices or equipment in the future.

In view of this, the implementation example of the present disclosure discloses an integrated broadband antenna. Some implementation examples according to the examples can solve the technical problems mentioned above.

According to an implementation example, the disclosure provides an integrated broadband antenna. The integrated broadband antenna includes a first conductor layer, a first conductor plane, a second conductor plane, a feed-in conductor structure and a signal source. The first conductor plate has a first coupling edge and a first connecting edge. The first connection edge is electrically connected to the first conductor layer through a first short circuit structure, and there is a first distance between the first conductor plate and the first conductor layer. The second conductor plate has a second coupling edge and a second connecting edge. The second connection edge is electrically connected to the first conductor layer through a second short circuit structure, and there is a second distance between the second conductor plate and the first conductor layer. There is a third distance between the second coupling edge and the first coupling edge to form a resonant slotted hole. The feed-in conductor structure is located in the resonant slotted hole, and has a first conductor line segment, a second conductor line segment and a third conductor line segment. There is a first coupling distance between the first conductor segment and the first coupling edge. There is a second coupling distance between the second conductor segment and the second coupling edge. The third conductor line segment is electrically connected to the first conductor line segment and the second conductor line segment. The signal source is electrically coupled to the feeding conductor structure, and the signal source excites the integrated broadband antenna to generate a multi-resonant mode. The multiple resonance modes cover at least a first communication frequency band.

In order to have a better understanding of the above-mentioned and other contents of this case, the following examples are specially cited, and in conjunction with the attached drawings, the detailed description is as follows:

FIG. 1A is a structural diagram of an integrated broadband antenna 1 according to an embodiment of the present disclosure. As shown in FIG. 1A , the integrated broadband antenna 1 includes a first conductor layer 11 , a first conductor plane 12 , a second conductor plane 13 , a feeding conductor structure 15 and a signal source 16 . The first conductive plate 12 has a first coupling edge 121 and a first connecting edge 122 . The first connection edge 122 is electrically connected to the first conductor layer 11 through a first short circuit structure 123 , and there is a first distance d1 between the first conductor plate 12 and the first conductor layer 11 . The second conductor plate 13 has a second coupling edge 131 and a second connecting edge 132 . The second connection edge 132 is electrically connected to the first conductor layer 11 through a second short circuit structure 133 , and there is a second distance d2 between the second conductor plate 13 and the first conductor layer 11 . There is a third distance d3 between the second coupling edge 131 and the first coupling edge 121 to form a resonant slot 14 . Both the first short circuit structure 123 and the second short circuit structure 133 are composed of a plurality of conductor lines. The feed-in conductor structure 15 is located in the resonant slot 14 and has a first conductor segment 151 , a second conductor segment 152 and a third conductor segment 153 . There is a first coupling distance s1 between the first conductor segment 151 and the first coupling edge 121 . There is a second coupling distance s2 between the second conductor segment 152 and the second coupling edge 131 . The third conductor line segment 153 is electrically connected to the first conductor line segment 151 and the second conductor line segment 152 . The signal source 16 is electrically coupled to the feeding conductor structure 15, and the signal source 16 excites the integrated broadband antenna 1 to generate a multi-resonant mode 17 (as shown in FIG. 1B ). The multiple resonance modes 17 cover at least one first communication frequency band 18 (as shown in FIG. 1B ). The signal source 16 is a transmission line, an impedance matching circuit, an amplifier circuit, a feed-in network, a switch circuit, a connector component, a filter circuit, an integrated circuit chip or a radio frequency front-end module. The area of the first conductor plate 12 and the area of the second conductor plate 13 are both between 0.1 wavelength square and 0.35 wavelength square of the lowest operating frequency of the first communication frequency band 18 . Both the distance of the first distance d1 and the distance of the second distance d2 are between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band 18 . The length of the first conductor line segment 151 and the length of the second conductor line segment 152 are both between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band 18 . Both the distance of the first coupling interval s1 and the distance of the second coupling interval s2 are between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 18 . The second connection edge 132 of the integrated broadband antenna 1 can be electrically connected to the first connection edge 122 of another group of the integrated broadband antenna 1, and repeated in series to form an integrated broadband antenna array. Antenna arrays can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

In order to successfully achieve high integration and broadband effects. According to an embodiment of the present disclosure, the integrated broadband antenna 1 first designs the first conductive plate 12 and the second conductive plate 13 to be electrically connected to the first conductive layer 11, and then designs the second coupling edge 131 and the second A resonant slotted hole 14 is formed between a coupling edge 121 . In this way, an antenna radiation structure integrating planar current and slotted magnetic current can be formed, which can effectively increase the operating bandwidth of the multi-resonance mode 17 . The integrated broadband antenna 1 has the first conductor line segment 151 , the second conductor line segment 152 and the third conductor line segment 153 by designing the feed-in conductor structure 15 . And design the first coupling spacing s1 between the first conductor line segment 151 and the first coupling edge 121, and design the second coupling spacing s2 between the second conductor line segment 152 and the second coupling edge 131, The designed plate current and slotted hole magnetic current can be well co-excited, so the multi-resonance mode 17 can achieve good impedance matching. And the first short-circuit structure 123 and the second short-circuit structure 133 are designed to effectively suppress the leakage electric field energy of the first connection edge 122 and the second connection edge 132, and improve the proximity integration of multiple groups of the integrated broadband antenna 1 energy isolation. Therefore, the second connection edge 132 can be electrically connected to the first connection edge 122 of another group of the integrated broadband antenna 1, and repeated in series to form an integrated broadband antenna array, which can be applied to multiple Enter a multiple output antenna system or a beamforming antenna system. Therefore, the integrated broadband antenna 1 in an embodiment of the present disclosure can achieve the technical effects of broadband and high degree of integration.

FIG. 1B is a return loss curve of the integrated broadband antenna 1 according to an embodiment of the present disclosure. It selects the following dimensions for experimentation: the areas of the first conductor plate 12 and the second conductor plate 13 are about 182 mm ² ; the distances between the first distance d1 and the second distance d2 are all about 2 mm; The distance between the three intervals d3 is about 3.5 mm; the length of the first conductor line segment 151 is about 9 mm; the length of the second conductor line segment 152 is about 5.3 mm; the distance between the first coupling spacing s1 and the second coupling spacing s2 The distances are all about 0.2 mm. As shown in FIG. 1B , the signal source 16 excites the integrated broadband antenna 1 to generate a well-matched multi-resonance mode 17 , and the multi-resonance mode 17 covers at least one first communication frequency band 18 . In this embodiment, the frequency range of the first communication frequency band 18 is 5150 MHz~5875 MHz, and the minimum operating frequency of the first communication frequency band 18 is 5150 MHz. FIG. 1C is a graph of the radiation efficiency curve of the integrated broadband antenna 1 according to an embodiment of the present disclosure. As shown in FIG. 1C , the multiple resonance modes 17 generated by the signal source 16 exciting the integrated broadband antenna 1 have good radiation efficiency.

The communication frequency band operation and experimental data covered in FIG. 1B are only for experimentally proving the technical effect of the integrated broadband antenna 1 disclosed in FIG. 1A . It is not intended to limit the operation, application and specifications of the communication frequency bands that the integrated broadband antenna 1 disclosed in the present disclosure can cover in actual applications. The second connection edge 132 of the integrated broadband antenna 1 of the present disclosure can be electrically connected to the first connection edge 122 of another group of the integrated broadband antenna 1, and repeated in series to form an integrated broadband antenna array. Broadband antenna arrays can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

FIG. 2A is a structural diagram of an integrated broadband antenna 2 according to an embodiment of the present disclosure. As shown in FIG. 2A , the integrated broadband antenna 2 includes a first conductor layer 21 , a first conductor plane 22 , a second conductor plane 23 , a feeding conductor structure 25 and a signal source 26 . The first conductive plate 22 has a first coupling edge 221 and a first connecting edge 222 . The first connecting edge 222 is electrically connected to the first conductor layer 21 through a first short circuit structure 223 , and there is a first distance d1 between the first conductor plate 22 and the first conductor layer 21 . The second conductor plate 23 has a second coupling edge 231 and a second connecting edge 232 . The second connection edge 232 is electrically connected to the first conductor layer 21 through a second short circuit structure 233 , and there is a second distance d2 between the second conductor plate 23 and the first conductor layer 21 . There is a third distance d3 between the second coupling edge 231 and the first coupling edge 221 to form a resonant slot 24 . The first short circuit structure 223 is composed of two conductor sheets. The second short circuit structure 233 is composed of a conductor sheet. The feed-in conductor structure 25 is located in the resonant slot 24 and has a first conductor segment 251 , a second conductor segment 252 and a third conductor segment 253 . There is a first coupling distance s1 between the first conductor segment 251 and the first coupling edge 221 . There is a second coupling distance s2 between the second conductor segment 252 and the second coupling edge 231 . The third conductor line segment 253 is electrically connected to the first conductor line segment 251 and the second conductor line segment 252 . The signal source 26 is electrically coupled to the feeding conductor structure 25, and the signal source 26 excites the integrated broadband antenna 2 to generate a multi-resonant mode 27 (as shown in FIG. 2B ). The multiple resonance modes 27 cover at least one first communication frequency band 28 (as shown in FIG. 2B ). The signal source 26 is a transmission line, an impedance matching circuit, an amplifier circuit, a feed-in network, a switch circuit, a connector component, a filter circuit, an integrated circuit chip or a radio frequency front-end module. The area of the first conductor plate 22 and the area of the second conductor plate 23 are both between 0.1 wavelength square and 0.35 wavelength square of the lowest operating frequency of the first communication frequency band 28 . Both the distance of the first distance d1 and the distance of the second distance d2 are between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band 28 . The length of the first conductor line segment 251 and the length of the second conductor line segment 252 are both between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band 28 . Both the distance of the first coupling interval s1 and the distance of the second coupling interval s2 are between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 28 . The second connection edge 232 of the integrated broadband antenna 2 can be electrically connected to the first connection edge 222 of another group of the integrated broadband antenna 2, and repeated in series to form an integrated broadband antenna array. Antenna arrays can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

In FIG. 2A , the integrated broadband antenna 2 according to an embodiment of the present disclosure is disclosed, although the shapes of the first conductor plate 22 , the second conductor plate 23 and the feed conductor structure 25 are not exactly the same as those of the integrated broadband antenna 1 . Moreover, the first short circuit structure 223 and the second short circuit structure 233 are composed of conductive sheets. However, the integrated broadband antenna 2 also designs the first conductor plane 22 and the second conductor plane 23 to be electrically connected to the first conductor layer 21, and then by designing the second coupling edge 231 and the first coupling edge 221 A resonant slotted hole 24 is formed therebetween. In this way, an antenna radiation structure integrating plate current and slotted magnetic current can be formed, which can effectively increase the operating bandwidth of the multi-resonance mode 27 . The integrated broadband antenna 2 also has the first conductor line segment 251 , the second conductor line segment 252 and the third conductor line segment 253 by designing the feed-in conductor structure 25 . And design the first coupling spacing s1 between the first conductor line segment 251 and the first coupling edge 221, and design the second coupling spacing s2 between the second conductor line segment 252 and the second coupling edge 231, The designed plate current and slotted hole magnetic current can be well co-excited, so the multi-resonance mode 27 can achieve good impedance matching. And the designed first short-circuit structure 223 and the second short-circuit structure 233 can effectively suppress the leakage electric field energy of the first connection edge 222 and the second connection edge 232, and improve the adjacent integration of multiple groups of the integrated broadband antenna 2 energy isolation. Therefore, the second connection edge 232 can be electrically connected to the first connection edge 222 of another group of the integrated broadband antenna 2, and repeated serial connections form an integrated broadband antenna array, which can be applied to multiple Enter a multiple output antenna system or a beamforming antenna system. Therefore, the integrated broadband antenna 2 in an embodiment of the present disclosure can also achieve the technical effect of broadband and high degree of integration.

FIG. 2B is a return loss curve of the integrated broadband antenna 2 according to an embodiment of the present disclosure. It selects the following dimensions for experimentation: the areas of the first conductor plate 22 and the second conductor plate 23 are about 145 mm ² ; the distance between the first distance d1 and the second distance d2 is about 1.5 mm; The distance between the three intervals d3 is about 3.5 mm; the length of the first conductor line segment 251 is about 11.5 mm; the length of the second conductor line segment 252 is about 4.1 mm; the distance between the first coupling spacing s1 and the second coupling spacing s2 The distances are all about 0.18 mm. As shown in FIG. 2B , the signal source 26 excites the integrated broadband antenna 2 to generate a well-matched multi-resonance mode 27 , and the multi-resonance mode 27 covers at least a first communication frequency band 28 . In this embodiment, the frequency range of the first communication frequency band 28 is 5150 MHz~5875 MHz, and the minimum operating frequency of the first communication frequency band 28 is 5150 MHz.

The communication frequency band operation and experimental data covered in FIG. 2B are only for experimentally proving the technical effect of the integrated broadband antenna 2 disclosed in FIG. 2A. It is not intended to limit the operation, application and specifications of the communication frequency bands that the integrated broadband antenna 2 disclosed in the present disclosure can cover in actual applications. The second connection edge 232 of the integrated broadband antenna 2 of this disclosure can be electrically connected to the first connection edge 222 of another group of the integrated broadband antenna 2, and repeated in series to form an integrated broadband antenna array. Broadband antenna arrays can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

FIG. 3A is a structural diagram of an integrated broadband antenna 3 according to an embodiment of the present disclosure. As shown in FIG. 3A , the integrated broadband antenna 3 includes a first conductor layer 31 , a first conductor plane 32 , a second conductor plane 33 , a feed conductor structure 35 and a signal source 36 . The first conductive plate 32 has a first coupling edge 321 and a first connecting edge 322 . The first connection edge 322 is electrically connected to the first conductor layer 31 through a first short circuit structure 323 , and there is a first distance d1 between the first conductor plate 32 and the first conductor layer 31 . The second conductor plate 33 has a second coupling edge 331 and a second connecting edge 332 . The second connection edge 332 is electrically connected to the first conductor layer 31 through a second short circuit structure 333 , and there is a second distance d2 between the second conductor plate 33 and the first conductor layer 31 . There is a third distance d3 between the second coupling edge 331 and the first coupling edge 321 to form a resonant slot 34 . The first short circuit structure 323 is composed of a single conductor piece. The second short circuit structure 333 is composed of a plurality of conductor lines. The feed-in conductor structure 35 is located in the resonant slot 34 , and has a first conductor segment 351 , a second conductor segment 352 and a third conductor segment 353 . There is a first coupling distance s1 between the first conductor segment 351 and the first coupling edge 321 . There is a second coupling distance s2 between the second conductor segment 352 and the second coupling edge 331 . The third conductor line segment 353 is electrically connected to the first conductor line segment 351 and the second conductor line segment 352 . The first conductor plate 32 , the second conductor plate 33 and the feed-in conductor structure 35 can be formed on a single-layer or multi-layer dielectric substrate. The signal source 36 is electrically coupled to the feeding conductor structure 35, and the signal source 36 excites the integrated broadband antenna 3 to generate a multi-resonance mode 37 (as shown in FIG. 3B ). The multiple resonance modes 37 cover at least one first communication frequency band 38 (as shown in FIG. 3B ). The signal source 36 is a transmission line, an impedance matching circuit, an amplifier circuit, a feed-in network, a switch circuit, a connector component, a filter circuit, an integrated circuit chip or a radio frequency front-end module. The first conductor plate 32 , the second conductor plate 33 and the feed-in conductor structure 35 are formed on a single-layer dielectric substrate 3233 . The integrated broadband antenna 3 also has a third conductor plate 324 electrically connected to the first conductor layer 31 through a third short circuit structure 3241, and there is a gap between the third conductor plate 324 and the first conductor plate 31. The third coupling distance s3. The third short circuit structure 3241 is composed of two conductor lines, and the third coupling distance s3 is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 38 . The integrated broadband antenna 3 has a fourth conductor plate 334 electrically connected to the first conductor layer 31 through a third short circuit structure 3341, and there is a gap between the third conductor plate 334 and the first conductor plate 31. The fourth coupling distance s4. The third short circuit structure 3341 is composed of a conductor sheet, and the distance of the fourth coupling spacing s4 is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 38 . The area of the first conductor plate 32 and the area of the second conductor plate 33 are both between 0.1 wavelength square and 0.35 wavelength square of the lowest operating frequency of the first communication frequency band 38 . Both the distance of the first distance d1 and the distance of the second distance d2 are between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band 38 . The length of the first conductor line segment 351 and the length of the second conductor line segment 352 are both between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band 38 . Both the distance of the first coupling spacing s1 and the distance of the second coupling spacing s2 are between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band 38 . The second connection edge 332 of the integrated broadband antenna 3 can be electrically connected to the first connection edge 322 of another group of the integrated broadband antenna 3, and repeated in series to form an integrated broadband antenna array. Antenna arrays can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

In FIG. 3A , the integrated broadband antenna 3 according to an embodiment of the present disclosure is disclosed, although the shapes of the second conductor plate 33 and the feeding conductor structure 35 are not exactly the same as those of the integrated broadband antenna 1 . And the first short circuit structure 323 is composed of a single conductor sheet. And the integrated broadband antenna 3 has a third conductor plate 324 and a fourth conductor plate 334 . However, the integrated broadband antenna 3 also designs the first conductor plane 32 and the second conductor plane 33 to be electrically connected to the first conductor layer 31, and then by designing the second coupling edge 331 and the first coupling edge 321 A resonant slotted hole 34 is formed therebetween. In this way, an antenna radiation structure integrating plate current and slotted magnetic current can be formed, which can effectively increase the operating bandwidth of the multi-resonance mode 37 . The integrated broadband antenna 3 also has the first conductor line segment 351 , the second conductor line segment 352 and the third conductor line segment 353 by designing the feed-in conductor structure 35 . And design the first coupling spacing s1 between the first conductor line segment 351 and the first coupling edge 321, and design the second coupling spacing s2 between the second conductor line segment 352 and the second coupling edge 331, The designed plate current and slotted hole magnetic current can be well co-excited, so the multi-resonance mode 37 can achieve good impedance matching. And the designed first short-circuit structure 323 and the second short-circuit structure 333 can effectively suppress the leakage electric field energy of the first connection edge 322 and the second connection edge 332, and improve the adjacent integration of multiple groups of the integrated broadband antenna 3 energy isolation. Therefore, the second connection edge 332 can be electrically connected to the first connection edge 322 of another group of the integrated broadband antenna 3, and repeated in series to form an integrated broadband antenna array, which can be applied to multiple Enter a multiple output antenna system or a beamforming antenna system. Therefore, the integrated broadband antenna 3 in an embodiment of the present disclosure can also achieve the technical effects of broadband and high integration.

FIG. 3B is a return loss curve of the integrated broadband antenna 3 according to an embodiment of the present disclosure. It selects the following dimensions for experiments: the area of the first conductor plate 32 is about 159 mm ² ; the area of the second conductor plate 33 is about 132 mm ² ; the distances between the first distance d1 and the second distance d2 are equal about 0.5 mm; the distance of the third distance d3 is about 3.6 mm; the length of the first conductor line segment 351 is about 16.5 mm; the length of the second conductor line segment 352 is about 6.6 mm; the first coupling distance s1 and The distance between the second coupling spacing s2 is about 0.2 mm; the distance between the third coupling spacing s3 and the fourth coupling spacing s4 is about 1.1 mm. As shown in FIG. 3B , the signal source 36 excites the integrated broadband antenna 3 to generate a well-matched multi-resonance mode 37 , and the multi-resonance mode 37 covers at least one first communication frequency band 38 . In this embodiment, the frequency range of the first communication frequency band 38 is 5150 MHz~7125 MHz, and the minimum operating frequency of the first communication frequency band 38 is 5150 MHz.

The communication frequency band operation and experimental data covered in FIG. 3B are only for experimentally proving the technical effect of the integrated broadband antenna 3 disclosed in FIG. 3A. It is not intended to limit the operation, application and specifications of the communication frequency bands that the integrated broadband antenna 3 disclosed in this disclosure can cover in actual applications. The second connection edge 332 of the integrated broadband antenna 3 of the present disclosure can be electrically connected to the first connection edge 322 of another group of the integrated broadband antenna 3, and repeated in series to form an integrated broadband antenna array. Broadband antenna arrays can be applied to multiple-input multiple-output antenna systems or beamforming antenna systems.

FIG. 4A is a structural diagram of an integrated broadband antenna array 4 formed by connecting three sets of integrated broadband antennas 1 (as shown in FIG. 1A ) in series according to an embodiment of the present disclosure. The second connection edge 132 of the integrated broadband antenna is electrically connected to the first connection edge 122 of another group of the integrated broadband antenna 1, and three groups are repeatedly connected in series to form an integrated broadband antenna array 4. The broadband antenna array 4 can be applied to a MIMO antenna system or a beamforming antenna system. In the implementation example shown in FIG. 4A , the three integrated broadband antennas have a signal source 161 , a signal source 162 and a signal source 163 respectively. The signal source 161 excites a multi-resonance mode 471 , the signal source 162 excites a multi-resonance mode 472 , and the signal source 163 excites a multi-resonance mode 473 (as shown in FIG. 4B ).

In the implementation example in FIG. 4A, although three sets of the integrated broadband antenna 1 are connected in series (as shown in FIG. 1A ). However, for each group of integrated broadband antennas, the first conductor plane 12 and the second conductor plane 13 are also designed to be electrically connected to the first conductor layer 11, and then by designing the second coupling edge 131 and the first coupling edge 121 forms a resonant slotted hole 14 . In this way, an antenna radiation structure integrating plate current and slotted magnetic current can be formed, which can effectively increase the operating bandwidth of the multiple resonance modes 471 , 472 , 473 (as shown in FIG. 4B ). Each group of the integrated broadband antenna also has the first conductor line segment 151 , the second conductor line segment 152 and the third conductor line segment 153 by designing the feed-in conductor structure 15 . And design the first coupling spacing s1 between the first conductor line segment 151 and the first coupling edge 121, and design the second coupling spacing s2 between the second conductor line segment 152 and the second coupling edge 131, The designed plate current and slotted hole magnetic current can be well co-excited, so the multiple resonance modes 471 , 472 , 473 can all achieve good impedance matching (as shown in FIG. 4B ). And the first short-circuit structure 123 and the second short-circuit structure 133 designed by each group can also effectively suppress the leakage electric field energy of the first connection edge 122 and the second connection edge 132, and improve the performance of multiple groups of the integrated broadband antenna. Energy isolation for proximity integration. Therefore, each group of integrated broadband antennas in FIG. 4A can successfully achieve the technical effect of broadband and high integration.

4B and 4C are the return loss curves and isolation curves of the three integrated broadband antennas connected in series to form an integrated broadband antenna array 4 . As shown in FIG. 4A and FIG. 4B , the signal source 161 excites a multi-resonance mode 471 , the signal source 162 excites a multi-resonance mode 472 , and the signal source 163 excites a multi-resonance mode 473 . As shown in FIG. 4B, the three groups of integrated broadband antennas are capable of generating well-matched multi-resonance modes 471, 472, 473 respectively, and the three groups of multi-resonance modes 471, 472, 473 all cover at least one first Communication frequency band 48. In this embodiment, the frequency range of the first communication frequency band 48 is 5150 MHz~5875 MHz, and the minimum operating frequency of the first communication frequency band 48 is 5150 MHz. As shown in Figure 4A and Figure 4C, the isolation curve between the signal source 161 and the signal source 162 is 1612, the isolation curve between the signal source 162 and the signal source 163 is 1623, and the signal source The isolation curve between 161 and the signal source 163 is 1613 . As shown in FIG. 4C, good isolation can be achieved among the three integrated broadband antennas.

The communication frequency band operation and experimental data covered in Fig. 4B and Fig. 4C are only for experimentally proving the technical effect of three integrated broadband antennas connected in series to form an integrated broadband antenna array 4 disclosed in Fig. 4A. It is not intended to limit the operation, application and specifications of the communication frequency bands that the integrated broadband antenna array 4 in this disclosure can cover in practical applications.

To sum up, although this case has been disclosed as above with the embodiment, it is not used to limit this case. Those with common knowledge in the technical field to which this case belongs may make various changes and modifications without departing from the spirit and scope of this case. Therefore, the protection scope of this case should be defined by the scope of the attached patent application.

1, 2, 3: Integrated broadband antenna 4: Integrated broadband antenna array 11, 21, 31: the first conductor layer 12, 22, 32: the first conductor plate 121, 221, 321: the first coupling edge 122, 222, 322: the first connection edge 123, 223, 323: the first short-circuit structure 324: The third conductor plate 3241: The third short circuit structure 13, 23, 33: the second conductor plate 131, 231, 331: the second coupling edge 132, 232, 332: the second connecting edge 133, 233, 333: the second short circuit structure 334: The fourth conductor plate 3341: The fourth short circuit structure 3233: dielectric substrate 14, 24, 34: Resonant slotted holes 15, 25, 35: Feed-in conductor structure 151, 251, 351: the first conductor segment 152, 252, 352: the second conductor segment 153, 253, 353: the third conductor segment 16, 26, 36, 461, 462, 463: signal source 17, 27, 37, 471, 472, 473: Multiple resonance modes 171: Radiation Efficiency Curve 18, 28, 38, 48: the first communication frequency band 1612, 1613, 1623: isolation curve d1: first spacing d2: second spacing d3: third spacing s1: first coupling spacing s2: second coupling spacing s3: third coupling spacing s4: fourth coupling spacing

FIG. 1A is a structural diagram of an integrated broadband antenna 1 according to an embodiment of the present disclosure. FIG. 1B is a return loss curve of the integrated broadband antenna 1 according to an embodiment of the present disclosure. FIG. 1C is a radiation efficiency curve of the integrated broadband antenna 1 according to an embodiment of the present disclosure. FIG. 2A is a structural diagram of an integrated broadband antenna 2 according to an embodiment of the present disclosure. FIG. 2B is a return loss curve of the integrated broadband antenna 2 according to an embodiment of the present disclosure. FIG. 3A is a structural diagram of an integrated broadband antenna 3 according to an embodiment of the present disclosure. FIG. 3B is a return loss curve of the integrated broadband antenna 3 according to an embodiment of the present disclosure. FIG. 4A is a structural diagram of an integrated broadband antenna array 4 formed by connecting three sets of integrated broadband antennas 1 in series according to an embodiment of the present disclosure. FIG. 4B is a return loss curve diagram of an integrated broadband antenna array 4 formed by three sets of integrated broadband antennas 1 connected in series according to an embodiment of the present disclosure. FIG. 4C is an isolation curve diagram of three sets of integrated broadband antennas 1 connected in series to form an integrated broadband antenna array 4 according to an embodiment of the present disclosure.

1: Integrated broadband antenna

11: The first conductor layer

12: The first conductor plate

121: First coupling edge

122: First connection edge

123: The first short circuit structure

13: Second conductor plate

131: second coupling edge

132: Second connection edge

133: Second short circuit structure

14: Resonant slotted hole

15: Feed-in conductor structure

151: The first conductor segment

152: Second conductor segment

153: The third conductor segment

16: Signal source

d1: first spacing

d2: second spacing

d3: third spacing

s1: first coupling spacing

s2: second coupling spacing

Claims (18)

An integrated broadband antenna comprising: a first conductor layer; A first conductor plate, which has a first coupling edge and a first connection edge, the first connection edge is electrically connected to the first conductor layer through a first short circuit structure, the first conductor plate and the first conductor There is a first distance between the layers; A second conductor plate, which has a second coupling edge and a second connection edge, the second connection edge is electrically connected to the first conductor layer through a second short circuit structure, the second conductor plate and the first conductor There is a second distance between the layers, and there is a third distance between the second coupling edge and the first coupling edge to form a resonant slot; A feed-in conductor structure, which is located in the resonant slotted hole, and has a first conductor line segment, a second conductor line segment and a third conductor line segment, and a connection between the first conductor line segment and the first coupling edge a first coupling distance, there is a second coupling distance between the second conductor line segment and the second coupling edge, the third conductor line segment electrically connects the first conductor line segment and the second conductor line segment; and A signal source, which is electrically coupled to the feed-in conductor structure, excites the integrated broadband antenna to generate a multi-resonance mode, and the multi-resonance mode covers at least one first communication frequency band. The integrated broadband antenna described in item 1 of the scope of the patent application, wherein the first short-circuit structure and the second short-circuit structure are composed of a single or a plurality of conductor sheets or conductor lines. The integrated broadband antenna described in item 1 of the scope of the patent application, wherein the area of the first conductor plate is between 0.1 wavelength square and 0.35 wavelength square of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna described in item 1 of the scope of the patent application, wherein the area of the second conductor plate is between 0.1 wavelength square and 0.35 wavelength square of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna described in item 1 of the scope of the patent application, wherein the distance of the first distance is between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna as described in item 1 of the scope of the patent application, wherein the distance of the second spacing is between 0.005 wavelength and 0.18 wavelength of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna described in item 1 of the scope of the patent application, wherein the distance of the third distance is between 0.001 wavelength and 0.15 wavelength of the lowest operating frequency of the first communication frequency band. In the integrated broadband antenna described in item 1 of the scope of the patent application, the length of the first conductor line segment is between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band. In the integrated broadband antenna described in item 1 of the scope of the patent application, the length of the second conductor line segment is between 0.03 wavelength and 0.38 wavelength of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna as described in item 1 of the scope of the patent application, wherein the distance of the first coupling distance is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna described in claim 1 of the scope of the patent application, wherein the second coupling distance is between 0.001 wavelength and 0.05 wavelength of the lowest operating frequency of the first communication frequency band. The integrated broadband antenna described in item 1 of the scope of the patent application, wherein the signal source is a transmission line, an impedance matching circuit, an amplifier circuit, a feed-in network, a switch circuit, a connector element, a filter circuit, and an integrated circuit chips or RF front-end modules. The integrated broadband antenna as described in item 1 of the scope of the patent application, wherein a third conductor plate is electrically connected to the first conductor layer through a third short-circuit structure, and the third conductor plate is connected to the first conductor There is a third coupling distance between the plates. The integrated broadband antenna described in item 13 of the scope of the patent application, wherein the third short-circuit structure is composed of a single or a plurality of conductor sheets or conductor lines, and the distance between the third coupling distance is the lowest in the first communication frequency band The operating frequency is between 0.001 wavelength and 0.05 wavelength. The integrated broadband antenna as described in item 1 of the scope of the patent application, wherein a fourth conductor plate is electrically connected to the first conductor layer through a fourth short-circuit structure, and the fourth conductor plate is connected to the second conductor There is a fourth coupling distance between the plates. The integrated broadband antenna described in item 15 of the scope of the patent application, wherein the fourth short-circuit structure is composed of a single or a plurality of conductor sheets or conductor lines, and the fourth coupling distance is the lowest between the first communication frequency band The operating frequency is between 0.001 wavelength and 0.05 wavelength. According to the integrated broadband antenna described in item 1 of the scope of the patent application, the first conductor plate, the second conductor plate and the feed conductor structure can be formed on a single-layer or multi-layer dielectric substrate. The integrated broadband antenna as described in item 1 of the scope of the patent application, wherein the second connection edge can be electrically connected to the first connection edge of another group of the integrated broadband antenna, and repeated serial connection forms an integrated broadband antenna. The antenna array, the integrated broadband antenna array can be applied to a multiple-input multiple-output antenna system or a beamforming antenna system.

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