CN103337691A - Combined antenna and handheld antenna device - Google Patents
Combined antenna and handheld antenna device Download PDFInfo
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- CN103337691A CN103337691A CN2013101966359A CN201310196635A CN103337691A CN 103337691 A CN103337691 A CN 103337691A CN 2013101966359 A CN2013101966359 A CN 2013101966359A CN 201310196635 A CN201310196635 A CN 201310196635A CN 103337691 A CN103337691 A CN 103337691A
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Abstract
The invention relates to the antenna field and provides a combined antenna. A plurality of microstrip antennae on a circuit board comprises in order a first layer microstrip antenna with a first radiation fin, a second layer microstrip antenna with a second radiation fin, a third layer microstrip antenna with a third radiation fin, and a lower section of the circuit board is provided with a feed network and a shielding case. The first layer microstrip antenna uses a center feed needle to connect the feed network through the second layer microstrip antenna and the third layer microstrip antenna; the second layer microstrip antenna unilateral feed needle connects the feed network through the third layer microstrip antenna; and the third layer microstrip antenna double feed needles connect the feed network. The invention also provides a handheld antenna device. With adoption of the above technical scheme, loss is reduced, so that the combined antenna has the good peak gain and the low elevation angle gain.
Description
Technical field
The present invention relates to field of antenna, relate to a kind of combined antenna and hand held antenna device especially.
Background technology
Along with the fast development of satellite navigation and measuring technique, global position system has also obtained using widely.At present, the existing a plurality of countries in the whole world have set up the global position system of oneself, and Chinese Beidou satellite navigation system is after GPS of America, Russian GLONASS, European galileo, global the fourth-largest satellite navigation system.Beidou satellite navigation system will cover the Asia-Pacific region in 2012, and the year two thousand twenty will form by 30 multi-satellite networkings has ability covering the whole world.High-precision Beidou satellite navigation system is realized autonomous innovation, has both possessed the function of GPS and Galileo system.
Beidou satellite navigation system can provide high accuracy, highly reliable location, navigation and time service service, has navigation and the service characteristics of communicating by letter and combining.By the development in 20 years, this system was applied at numerous areas such as mapping, fishery, communications and transportation, telecommunications, water conservancy, forest fire protection, the mitigation disaster relief and national security, has produced remarkable economic efficiency and social benefit.
The Big Dipper navigation system of China is respectively Big Dipper generation system and the Big Dipper two generations system at present, in order to promote the receiving and transmitting signal of Big Dipper single/double mode hand-hold terminal equipment, have that volume is little, a kind of combined antenna of high-gain, high sensitivity, high-isolation, high reliability and hand held antenna device are a core component in the Big Dipper single/double mode hand-hold terminal equipment.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of combined antenna and a kind of hand held antenna device,, high-gain little to volume to satisfy, high sensitivity, high-isolation and the high requirement of reliability.
For addressing the above problem, the invention provides a kind of combined antenna, comprise a plurality of microstrip antennas that are positioned on the wiring board, comprise the ground floor microstrip antenna with first radiation fin successively, second layer microstrip antenna with second radiation fin, the 3rd layer of microstrip antenna with the 3rd radiation fin, described wiring board below is provided with feeding network and shielding box; Wherein, ground floor microstrip antenna employing center feedback pin, pass second layer microstrip antenna and be connected feeding network with the 3rd layer of microstrip antenna, the monolateral feedback pin of second layer microstrip antenna passes the 3rd layer of microstrip antenna and connects feeding network, and the 3rd layer of microstrip antenna double-fed pin connects described feeding network.
Above-mentioned combined antenna, wherein, ground floor microstrip antenna employing center feedback pin, the metallization center via hole that passes second layer microstrip antenna and the 3rd layer of microstrip antenna is connected feeding network, the metallization via hole that the monolateral feedback pin of second layer microstrip antenna passes the 3rd layer of microstrip antenna connects feeding network, wherein, the metallization center via hole of described second layer microstrip antenna and the 3rd layer of microstrip antenna and metallization via hole are provided with medium socket, and the through hole of described the 3rd layer of microstrip antenna is provided with medium socket.
Above-mentioned combined antenna, wherein, the first radiation fin lower left of described ground floor microstrip antenna has corner cut; Geometric center at microstrip antenna on described first radiation fin is provided with spill empty avoiding layer.
Above-mentioned combined antenna, wherein, described ground floor microstrip antenna bottom has expelling plate, described reflecting plate to be provided with reflecting plate empty avoiding layer, and the below of described ground floor microstrip antenna also is provided with the control deep hole.
Above-mentioned combined antenna, wherein, four limits are respectively arranged with three convexs on second radiation fin of described second layer microstrip antenna; The upper right side of described second radiation fin has corner cut.
Above-mentioned combined antenna, wherein, the bottom of described second layer microstrip antenna is provided with reflecting plate, and described reflecting plate is provided with reflecting plate empty avoiding layer, and is provided with the control deep hole below second layer microstrip antenna.
Above-mentioned combined antenna, wherein, four limits of the 3rd radiation fin of the 3rd layer of microstrip antenna are respectively arranged with three convexs.
Above-mentioned combined antenna, wherein, the bottom of described the 3rd layer of microstrip antenna is provided with reflecting plate, and described reflecting plate is provided with reflecting plate empty avoiding layer.
Above-mentioned combined antenna, wherein, the operating frequency of ground floor microstrip antenna is greater than the operating frequency of second layer microstrip antenna, and the operating frequency of second layer microstrip antenna is greater than the operating frequency of the 3rd layer of microstrip antenna.
Above-mentioned combined antenna, wherein, the ground floor microstrip antenna becomes 90 degree combinations with second layer microstrip antenna feed mode.
The present invention also provides a kind of hand held antenna device, comprise above-mentioned combined antenna, also comprise Receiver Module and radiofrequency emitting module, wherein, the first radiation fin employing center feedback pin of ground floor microstrip antenna, utilize the lower left corner cut to realize right-handed circular polarization, output signal to Receiver Module; Second radiation fin of second layer microstrip antenna adopts monolateral feedback pin, utilizes the upper left side corner cut to realize left-hand circular polarization, outputs signal to radiofrequency emitting module; The 3rd radiation fin of the 3rd layer of microstrip antenna adopts the double-fed pin, and phase difference is 90 degree between the feed pin, realizes right-handed circular polarization by 90 degree phase shift feeding networks, outputs signal to Receiver Module.
Pass through technique scheme, three layers of microstrip antenna combination have been adopted, these three layers of microstrip antennas all are to adopt the direct feed mode, all designed the metallization via hole at second layer microstrip antenna and the 3rd layer of microstrip antenna center, ground floor apex drive pin can reduce loss when passing above-mentioned second layer microstrip antenna and above-mentioned the 3rd layer of microstrip antenna central through hole arrival wiring board, makes this combined antenna have good summit gain and low elevation gain.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the first embodiment of the invention structure chart;
Fig. 2 is ground floor microstrip antenna Facad structure schematic diagram in the first embodiment of the invention;
Fig. 3 is ground floor microstrip antenna structure schematic diagram in the first embodiment of the invention;
Fig. 4 is first embodiment of the invention second layer microstrip antenna Facad structure schematic diagram;
Fig. 5 is first embodiment of the invention second layer microstrip antenna structure schematic diagram;
Fig. 6 is the 3rd layer of microstrip antenna Facad structure schematic diagram of first embodiment of the invention;
Fig. 7 is the 3rd layer of microstrip antenna structure schematic diagram of first embodiment of the invention.
Fig. 8 is combined antenna radio-frequency feed Principles of Network figure in the second embodiment of the invention hand held antenna device.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
In enforcement of the present invention, wherein " on " position description list such as D score shows is relative position relation, if the absolute position changes, its relative position also can respective change; " connection " expresses possibility is direct connection, also may be indirect connection, does not constitute the absolute restriction to the embodiment of the invention.
As Fig. 1, Fig. 2, Fig. 4, shown in Figure 6, it is the first embodiment of the invention structure chart, a kind of combined antenna is provided, comprise a plurality of microstrip antennas that are positioned on the wiring board 01, described a plurality of microstrip antenna is three microstrip antennas, its frequency successively from high to low from top to bottom, specifically comprise the ground floor microstrip antenna 13 with first radiation fin 14, second layer microstrip antenna 12 with second radiation fin 15, the 3rd layer of microstrip antenna 11 with the 3rd radiation fin 16, design has feeding network 41 and shielding box 42 below wiring board 01, and described shielding box 42 is welded on the wiring board 01;
Wherein, ground floor microstrip antenna 13 adopts apex drive pin 21, pass the metallization center via hole 31 of second layer microstrip antenna 12 and the metallization center via hole 32 of the 3rd layer of microstrip antenna 11 and arrive wiring board 01 feeding network 41, the metallization via hole 33 that second layer microstrip antenna 12 monolateral feedback pins 22 pass the 3rd layer of microstrip antenna 11 arrives wiring board 01 feeding network 41.The 3rd layer of microstrip antenna 11 double-fed pin 23(are respectively A, B) pass wiring board 01 and arrive phase shift feeding network 41, the metallization center of second layer microstrip antenna 12 via hole 31 and the 3rd layer of microstrip antenna 11 metallization center via hole 32 be provided with 71, the three layers of microstrip antenna of medium socket 11 metallization via holes 33 medium socket 71 be set; Radio-frequency joint 43 passes shielding box 42 and is welded on the wiring board 01.The metallization center via hole that ground floor apex drive pin passes above-mentioned second layer microstrip antenna and above-mentioned the 3rd layer of microstrip antenna can reduce loss when arriving wiring board, makes this combined antenna have good summit gain and low elevation gain.
As shown in Figure 2, it is ground floor microstrip antenna Facad structure schematic diagram in the first embodiment of the invention, there is corner cut 51 first radiation fin, 14 lower lefts of ground floor microstrip antenna 13, described corner cut 51 is isosceles right triangle, and described corner cut 51 is in order to be that the linearly polarized radiation direction changes into the circular polarization radiation direction with script; On described first radiation fin, be provided with spill empty avoiding layer 34 in the geometric center of microstrip antenna, making originally is that monolateral feeding classification is transformed into the apex drive mode, the combination of convenient three microstrip antennas.
As Fig. 1, shown in Figure 3, be ground floor microstrip antenna structure schematic diagram in the first embodiment of the invention: reflecting plate 17 is arranged at ground floor microstrip antenna 13 bottoms, described reflecting plate is provided with reflecting plate empty avoiding layer 35, the quantity of described reflecting plate empty avoiding layer is 1, the below of microstrip antenna 13 is provided with control deep hole 61, the quantity of described control deep hole 61 can be 1, and this control deep hole 61 is monolateral feedback pin 22 positions for empty avoiding second layer microstrip antenna 12.
As shown in Figure 4, be first embodiment of the invention second layer microstrip antenna Facad structure schematic diagram: four limits are respectively arranged with three convexs 53 on second radiation fin 15 in second layer microstrip antenna 12 fronts, external form according to handheld device, mate Big Dipper hand held antenna frequency by the length of adjusting convex, guarantee gain and the axial ratio performance at the low elevation angle of antenna; This second radiation fin is provided with monolateral feedback pin 22, and metallization center via hole 31 also is set on this radiation fin.The upper right side of described second radiation fin has corner cut 52, and described corner cut 52 is isosceles right triangle, and described corner cut 52 is in order to be that the linearly polarized radiation direction changes into the circular polarization radiation direction with script.
As shown in Figure 5, be first embodiment of the invention second layer microstrip antenna structure schematic diagram: reflecting plate 18 is arranged at second layer microstrip antenna 12 bottoms, described reflecting plate 18 is provided with reflecting plate empty avoiding layer 36, the quantity of described reflecting plate empty avoiding layer is 1, be provided with metallization center via hole 31 in the center of second layer microstrip antenna, the ground of three antennas is connected together, reduces the resonance between each antenna, improve gain and the axial ratio performance at the low elevation angle of each antenna.
Be provided with control deep hole 62 below microstrip antenna 12, the quantity of described control deep hole is 2, and this control deep hole 62 is double-fed pin 23 positions for the 3rd layer of microstrip antenna 11 of empty avoiding, and upper, middle and lower layer microstrip antenna can closely be linked to each other.
As shown in Figure 6, be the 3rd layer of microstrip antenna Facad structure schematic diagram of first embodiment of the invention: the 3rd radiation fin 16 4 limits of the 3rd layer of microstrip antenna 11 are respectively arranged with three convexs 54, external form according to handheld device, mate Big Dipper hand held antenna frequency by the length of adjusting convex, guarantee gain and the axial ratio performance at the low elevation angle of antenna; The 3rd radiation fin 16 of the 3rd layer of microstrip antenna 11 is provided with each two feed pin A, B, and two metallization via holes 33 and a metallization center via hole 32.
As shown in Figure 7, be the 3rd layer of microstrip antenna structure schematic diagram of first embodiment of the invention: be provided with reflecting plate 19, on reflecting plate 19, be provided with two metallization via holes 33 and metallization center via hole 32; Described reflecting plate 19 is provided with reflecting plate empty avoiding layer 37, and the quantity of described reflecting plate empty avoiding layer is 2.
In the combinations thereof antenna, the operating frequency of ground floor microstrip antenna 13 is greater than the operating frequency of second layer microstrip antenna 12, and the operating frequency of second layer microstrip antenna 12 is greater than the operating frequency of the 3rd layer of microstrip antenna 11; As shown in Figure 1: the antenna of minimum volume is in the superiors, undermost antenna volume maximum.Second radiation fin 15 as Fig. 4-7, the second microstrip antenna 12 fronts also is simultaneously the reference ground of ground floor microstrip antenna 13, and the 3rd radiation fin 16 in the 3rd layer of microstrip antenna 11 front also is simultaneously the reference ground of second layer microstrip antenna 12.
In the combinations thereof antenna, described three layers of microstrip antenna all adopt direct feed, corresponding three the different operating frequencies of three layers of microstrip antenna, and the corresponding S frequency range of ground floor microstrip antenna, second layer microstrip antenna is for the L frequency range, the 3rd layer of corresponding B3 frequency range of microstrip antenna.
In the combinations thereof antenna, the ground floor microstrip antenna becomes 90 degree combinations with second layer microstrip antenna feed mode, can improve the isolation of ground floor microstrip antenna and second layer microstrip antenna like this.
In the combinations thereof antenna, also comprise dielectric layer between described radiation fin and the reflecting plate.
As shown in Figure 8, be that second embodiment of the invention provides a kind of hand held antenna device, comprise the combinations thereof antenna, also comprise Receiver Module and radiofrequency emitting module, wherein, the first radiation fin employing center feedback pin of ground floor microstrip antenna utilizes the lower left corner cut to realize right-handed circular polarization, outputs signal to Receiver Module by feeding network; Second radiation fin of second layer microstrip antenna adopts monolateral feedback pin, utilizes the upper left side corner cut to realize left-hand circular polarization, outputs signal to radiofrequency emitting module by feeding network; The 3rd radiation fin of the 3rd layer of microstrip antenna adopts double-fed pin A, B, and phase difference is 90 degree between the feed pin, realizes right-handed circular polarization by 90 degree phase shift feeding networks, outputs signal to Receiver Module.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of claims of the present invention.
Claims (11)
1. combined antenna, it is characterized in that, comprise a plurality of microstrip antennas that are positioned on the wiring board, comprise the ground floor microstrip antenna with first radiation fin successively, second layer microstrip antenna with second radiation fin, the 3rd layer of microstrip antenna with the 3rd radiation fin, described wiring board below is provided with feeding network and shielding box; Wherein, ground floor microstrip antenna employing center feedback pin, pass second layer microstrip antenna and be connected feeding network with the 3rd layer of microstrip antenna, the monolateral feedback pin of second layer microstrip antenna passes the 3rd layer of microstrip antenna and connects feeding network, and the 3rd layer of microstrip antenna double-fed pin connects described feeding network.
2. combined antenna according to claim 1, it is characterized in that, ground floor microstrip antenna employing center feedback pin, the metallization center via hole that passes second layer microstrip antenna and the 3rd layer of microstrip antenna is connected feeding network, the metallization via hole that the monolateral feedback pin of second layer microstrip antenna passes the 3rd layer of microstrip antenna connects feeding network, wherein, the metallization center via hole of described second layer microstrip antenna and the 3rd layer of microstrip antenna and metallization via hole are provided with medium socket, and the through hole of described the 3rd layer of microstrip antenna is provided with medium socket.
3. combined antenna according to claim 1 is characterized in that, the first radiation fin lower left of described ground floor microstrip antenna has corner cut; Geometric center at microstrip antenna on described first radiation fin is provided with spill empty avoiding layer.
4. combined antenna according to claim 1 is characterized in that, described ground floor microstrip antenna bottom has expelling plate, described reflecting plate to be provided with reflecting plate empty avoiding layer, and the below of described ground floor microstrip antenna also is provided with the control deep hole.
5. combined antenna according to claim 1 is characterized in that, four limits are respectively arranged with three convexs on second radiation fin of described second layer microstrip antenna; The upper right side of described second radiation fin has corner cut.
6. combined antenna according to claim 1 is characterized in that, the bottom of described second layer microstrip antenna is provided with reflecting plate, and described reflecting plate is provided with reflecting plate empty avoiding layer, and is provided with the control deep hole below second layer microstrip antenna.
7. combined antenna according to claim 1 is characterized in that, four limits of the 3rd radiation fin of the 3rd layer of microstrip antenna are respectively arranged with three convexs.
8. combined antenna according to claim 1 is characterized in that, the bottom of described the 3rd layer of microstrip antenna is provided with reflecting plate, and described reflecting plate is provided with reflecting plate empty avoiding layer.
9. according to the arbitrary described combined antenna of claim 1 to 8, it is characterized in that the operating frequency of ground floor microstrip antenna is greater than the operating frequency of second layer microstrip antenna, the operating frequency of second layer microstrip antenna is greater than the operating frequency of the 3rd layer of microstrip antenna.
10. according to the arbitrary described combined antenna of claim 1 to 8, it is characterized in that the ground floor microstrip antenna becomes 90 degree combinations with second layer microstrip antenna feed mode.
11. hand held antenna device, it is characterized in that, comprise the arbitrary described combined antenna of claim 1 to 10, also comprise Receiver Module and radiofrequency emitting module, wherein, the first radiation fin employing center feedback pin of ground floor microstrip antenna utilizes the lower left corner cut to realize right-handed circular polarization, outputs signal to Receiver Module; Second radiation fin of second layer microstrip antenna adopts monolateral feedback pin, utilizes the upper left side corner cut to realize left-hand circular polarization, outputs signal to radiofrequency emitting module; The 3rd radiation fin of the 3rd layer of microstrip antenna adopts the double-fed pin, and phase difference is 90 degree between the feed pin, realizes right-handed circular polarization by 90 degree phase shift feeding networks, outputs signal to Receiver Module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101966359A CN103337691A (en) | 2013-05-23 | 2013-05-23 | Combined antenna and handheld antenna device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101966359A CN103337691A (en) | 2013-05-23 | 2013-05-23 | Combined antenna and handheld antenna device |
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| CN103337691A true CN103337691A (en) | 2013-10-02 |
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| CN2013101966359A Pending CN103337691A (en) | 2013-05-23 | 2013-05-23 | Combined antenna and handheld antenna device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956584A (en) * | 2014-04-29 | 2014-07-30 | 陕西海通天线有限责任公司 | Handheld dual-mode miniaturized user machine antenna |
| CN104183919A (en) * | 2014-07-11 | 2014-12-03 | 深圳市华信天线技术有限公司 | Combination antenna |
| CN109728401A (en) * | 2018-12-26 | 2019-05-07 | 北京遥测技术研究所 | A kind of high-gain multiband navigation antenna |
| CN114221121A (en) * | 2021-12-23 | 2022-03-22 | 上海交通大学 | Circular polarized antenna communication system for artificial anal sphincter |
| CN114256605A (en) * | 2021-12-20 | 2022-03-29 | 上海海积信息科技股份有限公司 | Combined antenna |
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| CN114221121A (en) * | 2021-12-23 | 2022-03-22 | 上海交通大学 | Circular polarized antenna communication system for artificial anal sphincter |
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Application publication date: 20131002 |