CN1881690A - Mobile phone antenna integration device for multi-type wireless communication system - Google Patents

Abstract

An antenna integration device includes a planar inverted F antenna, a monopole antenna and a flat antenna, and integrates these three different types of antennas into a multi-type antenna component. The planar inverted F antenna is used to receive global system signals transmitted in wireless communications, the monopole antenna is used to receive and transmit wireless local area network signals, and the flat antenna is used to receive and transmit Bluetooth signals, and the coupling effect between two antennas is used to increase the antenna radiation efficiency.

Description

Mobile phone antenna integration device for multi-type wireless communication system

technical field

The present invention relates to an antenna device, and in particular to an antenna integration device that integrates three different types of frequency band antennas into a multi-type antenna assembly.

Background technique

With the advancement of science and technology, the main battlefield of communication technology has gradually shifted from wired communication technology to wireless communication technology, such as the popularization of wireless household circuits and mobile circuits. In terms of the signal transmission medium, the previous tangible metal lines (such as coaxial cables) have been changed to wireless communication with air as the transmission medium, and the medium of wireless communication equipment for electromagnetic wave signal transmission is the antenna. That is to say, the wireless communication equipment must have an antenna to receive or transmit radio waves, so the antenna device is an indispensable component of the wireless communication equipment.

According to the current design trend, different functions are often designed on a mobile wireless communication device at the same time, such as a system device that can receive and send signals of different frequencies at the same time. These functional designs will make the components and antennas in the entire wireless communication device The number of devices has increased significantly, but the volume of the device must still be maintained at a certain size. Therefore, the traditional exposed antenna will become more and more unsuitable for future wireless communication devices due to its increasing size.

As far as the multi-purpose traditional hidden antenna device used in the wireless communication equipment on the market currently includes antennas suitable for different frequency bands, in order to avoid the problem of mutual interference, they often need to be designed separately, which not only increases the time for designing the antenna , and increase the design cost of the antenna. Traditional hidden antennas are connected to the circuit board by thimbles, which is not only expensive, but also has the problem of difficult control of the contact surface impedance.

Therefore, there is a great need for a multi-type antenna device that can integrate multiple frequency bands and can improve contact with the circuit substrate.

Contents of the invention

Therefore, the main purpose of the present invention is to provide a multi-type antenna integration device.

Another object of the present invention is to provide a method for contacting the circuit board with the elastic piece, and the elastic piece is a part of the antenna radiator.

According to a preferred embodiment of the present invention, the antenna integration component includes a planar inverted F antenna, a monopole antenna, and a planar antenna. These three different types of antennas are integrated on a base, and use the space between two antennas to Coupling effect to improve antenna radiation efficiency. Among them, the three different antennas receive and transmit different frequency bands respectively, such as the planar inverted F antenna (Planar Inverted F Antenna, PIFA) receives and transmits the frequency band signal of the Global System for Mobile Communication (GSM) wireless communication, and the monopole The antenna (Monopole Antenna) receives and transmits the signal of the Wireless Local Area Network (WLAN) frequency band, and the patch antenna (Patch Antenna) receives and transmits the signal of the Bluetooth frequency band.

Description of drawings

In order to make the above and other objects, features, advantages and embodiments of the present invention more understandable, preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings:

FIG. 1A is a schematic diagram of an antenna integration device according to a preferred embodiment of the present invention.

Fig. 1B is a side oblique view of an antenna integration device according to a preferred embodiment of the present invention.

FIG. 1C is a schematic diagram of the reverse side of an antenna integration device according to a preferred embodiment of the present invention.

Detailed ways

Please refer to FIG. 1A , which is a schematic diagram of an antenna integration device according to a preferred embodiment of the present invention. The antenna integration device 100 includes a base 104 , a planar inverted-F antenna 101 , a monopole antenna 102 , and a planar antenna 103 . Wherein, the above-mentioned antenna material is installed on the antenna base through ultrasonic heat fusion. The planar inverted-F antenna 101 is used to receive global system signals transmitted in wireless communication, and its resonant frequency ranges from 824MHz to 894MHz, 880MHz to 960MHz, 1710MHz to 1880MHz, and 1850MHz to 1990MHz; the monopole antenna 102 is used to receive and transmit wireless area network signals , its resonant frequency ranges from 2400MHz to 2500MHz; the panel antenna 103 is used to receive and transmit bluetooth signals, and its resonant frequency ranges from 2400MHz to 2483MHz. And the above-mentioned coupling effect between two antennas is used to increase the radiation efficiency of the antennas.

Please refer to FIG. 1A again, the planar inverted F antenna 101 is installed on the upper half of the front 112 of the base 104, the monopole antenna 102 is installed on a side 120 of the base 104, and the panel antenna 103 is installed on the front 112 of the base 104 The lower half of the monopole antenna 102 is located on the other side. Wherein, the planar inverted-F antenna 101 is installed on the front surface 112 of the base 104 similarly to the panel antenna 103 , while the monopole antenna 102 is installed on the side surface 120 of the base 104 and is perpendicular to the front surface 112 of the substrate. The minimum distance between the planar inverted-F antenna 101 and the monopole antenna 102 is 6mm, and the minimum distance between the planar inverted-F antenna 101 and the panel antenna 103 is 2mm, so as to overcome the problem of isolation and rely on the appropriate distance between two antennas , resulting in a coupling effect between the antennas to achieve the best reception and transmission effect.

1A, wherein the planar inverted-F antenna 101 has a feed point 105 and a ground point 106, wherein the planar inverted-F antenna 101 utilizes the feed-in point 105 and the radio frequency component (not shown) of the global system for wireless communication in the system Figure) coupling. The monopole antenna 102 has a feed point 107 , wherein the monopole antenna 102 is coupled with the WLAN radio frequency components (not shown) in the system through the feed point 107 . Finally, the panel antenna 103 has a feed point 108 , wherein the panel antenna 103 is coupled to the Bluetooth radio frequency component (not shown) in the system through the feed point 108 .

FIG. 1B is a side oblique view depicting the antenna integration device, in which it can be seen that the monopole antenna 102 is installed on the side 120 of the base 104 , so that the antenna integration device can be understood better.

Finally, FIG. 1C is a schematic diagram showing the reverse side 130 of the antenna integration device. Wherein the antenna radiator part of each antenna will extend downward from the feeding point and the grounding point of each antenna and protrude from the back surface 130 of the base 104. This protruding part is used as a planar inverted F antenna to contact the circuit substrate. For example, the planar inverted F antenna 101 extends downward from the feeding point 105 and the grounding point 106 respectively and protrudes from the reverse side 130 to form two elastic pieces 109; the monopole antenna 102 extends downward from the feeding point 107 and Protruding from the reverse surface 130 to form an elastic piece 110 ; and the panel antenna 103 extends downward from the position of the feeding point 108 and protrudes from the reverse surface 130 to form an elastic piece 111 . The structure of these elastic pieces is a metal object with a hook on the top, and after the antenna integration device 100 is in contact with the substrate (not shown) of the mobile device, the surface between the hook-shaped metal object on the top of each elastic piece and the antenna has a good surface. Because the hook has a curvature, it is in close contact with the substrate, so that the contact surface will not slide easily. In addition, the shrapnel and the aforementioned antenna structure are made of nickel-plated copper metal.

It can be known from the above preferred embodiments of the present invention that the application of the present invention has the following advantages. Firstly, the application of the present invention integrates the antennas of the functions of various communication systems in wireless communication equipment into a multi-type antenna component device, which is superior to traditional independent antennas in terms of space utilization, and does not require each antenna to be installed on a different base. Moreover, the multi-type antenna device of the present invention utilizes the close-range coupling effect of two antennas to overcome the isolation problem between traditional antennas, and has good effects on antenna bandwidth and radiation efficiency. The three antennas of the present invention are integrated and designed on the back and front of the casing of the wireless mobile device, have an omnidirectional radiation pattern, and reduce the influence of the human body effect on the antenna effect, thereby improving the performance of the antenna. The antennas of the present invention are made of nickel-plated copper and share one antenna base, which is easy to assemble, and the price is much lower than the three independent single antenna base manufacturing processes, reducing the complexity of the overall mechanism. The monopole antenna and the panel antenna of the present invention are respectively applied to the wireless local area network and the bluetooth system, and are better than the traditional ceramic antenna device in terms of space utilization and antenna performance, and because of the reduction in production cost, it is more suitable for commercial use superior.

Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person familiar with the art can make various equivalent changes without departing from the spirit and scope of the present invention. Or replace, so the scope of protection of the present invention should be defined by the appended claims of the application.

Claims (20)

1. An antenna integration device installed on a substrate, comprising: A base has a first surface, a second surface, and a side surface connecting the first surface and the second surface; A planar inverted F antenna is located on the first surface and extends downwards to protrude from the second surface to form two shrapnels, which are used to receive global system signals transmitted in wireless communication; A monopole antenna is located on the side and extends downwards to protrude from the second surface to form a shrapnel, which is used for receiving and transmitting WLAN signals; and A planar antenna is located on the first surface away from the monopole antenna, and extends downwards to protrude from the second surface to form a shrapnel, which is used for receiving and transmitting bluetooth signals. 2. The antenna integration device according to claim 1, wherein the minimum distance between the planar inverted-F antenna and the panel antenna is 2 mm, and the minimum distance between the planar inverted-F antenna and the monopole antenna is 6 mm. 3 . The antenna integration device as claimed in claim 1 , wherein the antenna integration device and the substrate are in contact with the elastic pieces, and the tops of the elastic pieces have hooks. 4 . 4. The integrated antenna device according to claim 1, wherein the resonant frequency of the planar inverted-F antenna is 824 MHz to 894 MHz. 5. The integrated antenna device according to claim 1, wherein the resonant frequency of the planar inverted-F antenna is 880 MHz to 960 MHz. 6. The integrated antenna device according to claim 1, wherein the resonance frequency of the planar inverted-F antenna is 1710 MHz to 1880 MHz. 7. The integrated antenna device according to claim 1, wherein the resonant frequency of the planar inverted-F antenna is 1850 MHz to 1990 MHz. 8. The integrated antenna device as claimed in claim 1, wherein the resonant frequency of the monopole antenna is 2400 MHz to 2500 MHz. 9. The integrated antenna device as claimed in claim 1, wherein the resonance frequency of the panel antenna is 2400 MHz to 2483 MHz. 10 . The integrated antenna device according to claim 1 , wherein the antennas are made of copper-nickel-plated metal, and the copper-nickel-plated metal is installed on the base by means of ultrasonic heat fusion. 11 . 11. An antenna system for a wireless communication device, comprising: - radio frequency components for global systems without communication; a wireless local area network radio frequency component; a bluetooth radio frequency component; and An antenna integration device installed on a substrate, comprising: A base has a first surface, a second surface, and a side surface connecting the first surface and the second surface; A planar inverted-F antenna, located on the first surface, extends downwards and protrudes from the second surface to form two shrapnels, which are used to receive global system signals transmitted in wireless communications; A monopole antenna is located on the side and extends downwards to protrude from the second surface to form a shrapnel, which is used for receiving and transmitting WLAN signals; and A planar antenna is located on the first surface away from the monopole antenna, and extends downwards to protrude from the second surface to form a shrapnel, which is used for receiving and transmitting bluetooth signals. 12. The antenna system according to claim 11, wherein the minimum distance between the planar inverted-F antenna and the panel antenna is 2 mm, and the minimum distance between the planar inverted-F antenna and the monopole antenna is 6 mm. 13 . The antenna system according to claim 11 , wherein the three antennas of the antenna integration device are in contact with the substrate respectively through the elastic pieces, and the tops of the elastic pieces have hooks. 14 . 14. The antenna system as claimed in claim 11, wherein the resonant frequency of the planar inverted-F antenna is 824MHz to 894MHz. 15. The antenna system as claimed in claim 11, wherein the resonant frequency of the planar inverted-F antenna is 880 MHz to 960 MHz. 16. The antenna system as claimed in claim 11, wherein the resonant frequency of the planar inverted-F antenna is 1710 MHz to 1880 MHz. 17. The antenna system as claimed in claim 11, wherein the resonance frequency of the planar inverted-F antenna is 1850 MHz to 1990 MHz. 18. The antenna system as claimed in claim 11, wherein the resonance frequency of the monopole antenna is 2400 MHz to 2500 MHz. 19. The antenna system as claimed in claim 11, wherein the resonance frequency of the panel antenna is 2400 MHz to 2483 MHz. 20. The antenna system as claimed in claim 11, wherein the antennas are nickel-plated copper metal, and the nickel-plated copper metal is installed on the base by means of ultrasonic heat fusion.

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