CN201364958Y - Multifrequency patch antenna device - Google Patents
Multifrequency patch antenna device Download PDFInfo
- Publication number
- CN201364958Y CN201364958Y CN 200920129719 CN200920129719U CN201364958Y CN 201364958 Y CN201364958 Y CN 201364958Y CN 200920129719 CN200920129719 CN 200920129719 CN 200920129719 U CN200920129719 U CN 200920129719U CN 201364958 Y CN201364958 Y CN 201364958Y
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- noise amplifier
- frequency range
- low noise
- patch antenna
- antenna device
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Abstract
The utility model relates to a multifrequency patch antenna device, comprising a patch antenna device, a PCB board, a shielding case and a low-noise amplifying circuit. The multifrequency patch antenna device is characterized in that the low-noise amplifying circuit further comprises a low-noise amplifier and a filter; the filter is positioned in front of the low-noise amplifier; the low-noise amplifying circuit also comprises a combining network and a multistage combining low-noise amplifier which are connected with the low-noise amplifier and sequentially connected; and the low-noise amplifier is the multistage low-noise amplifier. The multifrequency patch antenna device adds a unique low-noise amplifier and the shielding case below the patch antenna, improves the anti-interference capability of the antenna, leads the work of the antenna to be more stable and further guarantees the measuring precision; in addition, the multifrequency patch antenna device reduces power consumption and shortens the size by appropriate design of a combining network in the low-noise amplifying circuit.
Description
Technical field
The utility model relates to the communication antenna field, relates in particular to the multifrequency patch antenna device of measuring in the antenna.
Background technology
Along with the continuous development of satellite navigation and measuring technique, global position system has also obtained increasingly extensive application.At present, the existing a plurality of countries in the whole world have set up the global position system of oneself, as dipper system, GPS of USA system, Muscovite GLONASS system and the European GALILEO system of China.Along with the in-depth of the continuous maturation and the civil nature process of these satellite systems, measure antenna as the high-performance receiving equipment of one of global position system key technology, become a hot spot technology that receives much attention.
In addition, the development of mobile communcations system has also brought the change of antenna technology, in the third generation mobile system, no matter is the CDMA2000 system, or TDS-CDMA or WCDMA system, and communication antenna often all becomes one of key element of technical development.
No matter be global position system, or mobile communication system, the quality of measuring antenna performance all directly influences the positioning accuracy of receiving equipment, and then influences the whole system operation ability, positioning accuracy is high more, and satisfiable service application scope is wide more, business support ability is strong more.At present, for high-end position application, its required precision has reached the millimeter level, and for positioning accuracy request at millimetre-sized high-acruracy survey antenna, single frequency band can not meet the demands, as GPS high accuracy reception antenna, must receive its L2 carrier wave when receiving the L1 carrier wave, and then eliminate ionospheric interference, in the hope of improving precision.Under such trend, for guaranteeing the more stable work of receiver, the receiver that can receive a plurality of satellite systems or communication system has simultaneously become the main direction of receiving system research, and communication and measurement antenna need to satisfy higher requirement naturally as the critical component of receiver.
Chinese patent CN101136503A discloses a kind of annular satellite navigation aerial that improves low elevation gain and preparation method thereof, by removing contract in substrate intermediate medium technology, the floor technology, short circuit technology, reduced the influence of higher mode, low elevation gain and frequency bandwidth have been improved, can work in the 1.559GH/1.561GHz/1.575GHz frequency band, and be applicable to the navigation terminal of three satellite navigation systems of GPS/GALLEO/BD2.But the described technology of this patent just is applied in the navigation terminal or the portable terminal in location, and its positioning accuracy is relatively poor, does not satisfy the requirement to antenna precision of high-end navigation system and communication system.
The general circular polarization modes that adopt of the carrier wave of high accuracy global position system and high-end mobile communication system, corresponding multifrequency antenna generally also all adopts helical antenna, slot antenna or paster antenna to satisfy the demand that receives circularly polarized signal more.Helical antenna has circular polarization performance and broadband properties preferably, but spatial volume is bigger, not only be difficult for built-in, and be difficult to and carrier conformal.Slot antenna is difficult for realizing feeding classification, and is difficult to find suitable phase center owing to the discontinuity of conductive surface.Comparatively speaking, paster antenna has advantages such as complanation, simple in structure, easy feed, the little and easy design processing that takes up room, and is widely used in recent years in all kinds of high-end wireless communication terminals.
If but adopting conventional patch antenna design mode, the impedance bandwidth of plate aerial and circular polarization bandwidth are all narrower, and low elevation gain also is difficult to satisfy the requirement of satellite navigation receiver.Common single feed point perturbation mode designs circular polarized antenna and if adopt at present, though can guarantee gain characteristic, but because the intrinsic limitation of processing technology, be difficult to guarantee the consistency of axial ratio, the more important thing is that this scheme can not guarantee overlapping of antenna phase center and geometric center, this technology is if use at common navigation antenna, too much influence can be do not produced to navigation, and, then certainty of measurement can be badly influenced if be used in high-precision fields of measurement.
The utility model content
Main purpose of the present utility model provides a kind of high accuracy, high stability, high-gain multifrequency patch antenna device, and the precision that prior art exists is low in the hope of overcoming, poor stability and the not enough shortcoming of gain.
A kind of multifrequency patch antenna device of the utility model structure, comprise patch antenna device, pcb board, radome and low noise amplifier circuit, it is characterized in that, described low noise amplifier circuit further comprises low noise amplifier and filter, and described filter is positioned at before the described low noise amplifier.Described low noise amplifier circuit also comprise be connected with described low noise amplifier and be connected successively close road network network and the multistage road low noise amplifier that closes; Described low noise amplifier is the multi-stage low noise amplifier.
The described multistage road low noise amplifier that closes is that the first order is closed the road low noise amplifier, the road low noise amplifier is closed in the second level.
Described low noise amplifier circuit comprises the first frequency range amplifying circuit and the second frequency range amplifying circuit.The described first frequency range amplifying circuit comprises first order filter, the first frequency range low noise amplifier and the first frequency range second level filter; The signal of described first frequency range feeding network output successively passes through described first order filter, the first frequency range low noise amplifier and the first frequency range second level filter, arrives the described road network network that closes then.The described second frequency range amplifying circuit comprises the second frequency range first order filter, the second frequency range low noise amplifier and the second frequency range second level filter; Successively through the second frequency range first order filter, the second frequency range low noise amplifier and the second frequency range second level filter, arrive the described road network network that closes from the signal of described second frequency range feeding network output then.The signal that the described first frequency range amplifying circuit comes described close the signal that comes with the described second frequency range amplifying circuit in the road network network and merge after, through described multistage close the road low noise amplifier and amplify after output again.
In terms of existing technologies, the utlity model has remarkable advantages: in terms of existing technologies, device described in the utility model has increased unique low noise amplifier circuit and radome below paster antenna, improved the anti-jamming capacity of antenna, make the antenna more stable work, certainty of measurement is further guaranteed; And in low noise amplifier circuit,, reduced power consumption by closing the appropriate design of road network network, dwindled size.
Device described in the utility model not only has very remarkable advantages compared to prior art on performance, and device handling ease described in the utility model, and assembling is simple, and high conformity is fit to produce the industrial value height in batches.
Description of drawings
Fig. 1 is the low noise amplifier circuit figure of multifrequency patch antenna device described in the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment device described in the utility model is described in further detail.
Multifrequency patch antenna device described in the utility model has a very wide range of applications in global position system and mobile communication system, especially relate to have high accuracy, high-end field that the zero phase center requires, very important value is arranged especially.Device described in the utility model comprising on the equipment such as GPS receiver antenna, GPS+GLONASS reception antenna and antenna for base station, can its performance advantage of very effective performance.
Fig. 1 is a specific embodiments structure chart of multifrequency patch antenna device described in the utility model.
Low noise amplifier circuit comprises the first frequency range first order filter 36, the first frequency range low noise amplifier 37, the first frequency range second level filter 38, the second frequency range first order filter 42, the second frequency range low noise amplifier 43, the second frequency range second level filter 44, closes road network network 39, the first order is closed road low noise amplifier 40, the second level is closed road low noise amplifier 41 (choice of this low noise amplifier is decided according to the requirement of multiplication factor), closed road output port 45.By closing road matching network 19, reduced the number of low noise amplifier, reduced power consumption.By the signal of first frequency range of electric bridge output port output successively through the first frequency range first order filter 36, the first frequency range low noise amplifier 37, the first frequency range second level filter 38, reach and close road network network 39 then.Similarly, the signal of second frequency range feeding network output is successively through the second frequency range first order filter 42, the second frequency range low noise amplifier 43, the second frequency range second level filter 44, after the signal that comes with first frequency range in closing road network network 39 merged, the process first order was closed road low noise amplifier 40, export from closing road output port 45 after closing 41 amplifications of road low noise amplifier the second level again.All kinds of filter recited above is band pass filter.
The whole flow process that connects of the present utility model is: the signal of first frequency range is linked to each other with the input port of electric bridge in the first frequency range feeding network by the first frequency range feed probes through patch antenna device, arrive the output port of electric bridge then, in described low noise amplifier circuit, the signal that comes from the electric bridge output port reaches after via the described first frequency range first order band pass filter 36, the first frequency range low noise amplifier 37, the first frequency range second level band pass filter 38 and closes road network network 39.In like manner, the signal of second frequency range through paster antenna by the second frequency range feed probes with after the second frequency range feeding network links to each other, signal is by the output port output of electric bridge, then successively by the second frequency range first order filter 42, the second frequency range low noise amplifier 43, the second frequency range second level filter 44, after the signal that comes with first frequency range in closing road network network 39 merged, the process first order was closed road low noise amplifier 40, export from closing road output port 45 after closing 41 amplifications of road low noise amplifier the second level again.Wherein the second level is closed road low noise amplifier 41 and can be accepted or rejected according to the actual requirement of product.
The mode that multifrequency patch antenna device described in the utility model has adopted paster antenna to combine with band filter and multi-stage low noise amplifier, press down the loss that reduces when except that band, disturbing between antenna and the receiving equipment, improve anti-jamming capacity, and then improved certainty of measurement.
Claims (7)
1. multifrequency patch antenna device, comprise patch antenna device, pcb board, radome and low noise amplifier circuit, it is characterized in that described low noise amplifier circuit further comprises low noise amplifier and filter, described filter is positioned at before the described low noise amplifier.
2. multifrequency patch antenna device according to claim 1 is characterized in that, described low noise amplifier circuit also comprise be connected with described low noise amplifier and be connected successively close road network network (39) and the multistage road low noise amplifier (40,41) that closes; Described low noise amplifier is the multi-stage low noise amplifier.
3. multifrequency patch antenna device according to claim 1 and 2 is characterized in that, the described multistage road low noise amplifier that closes is that the first order is closed road low noise amplifier (40), road low noise amplifier (41) is closed in the second level.
4. multifrequency patch antenna device according to claim 1 and 2 is characterized in that, described low noise amplifier circuit comprises the first frequency range amplifying circuit and the second frequency range amplifying circuit.
5. multifrequency patch antenna device according to claim 4 is characterized in that, the described first frequency range amplifying circuit comprises first order filter (36), the first frequency range low noise amplifier (37) and the first frequency range second level filter (38); The signal of described first frequency range feeding network output successively passes through described first order filter (36), the first frequency range low noise amplifier (37) and the first frequency range second level filter (38), arrives the described road network network (39) that closes then.
6. multifrequency patch antenna device according to claim 4 is characterized in that, the described second frequency range amplifying circuit comprises the second frequency range first order filter (42), the second frequency range low noise amplifier (43) and the second frequency range second level filter (44); Successively through the second frequency range first order filter (42), the second frequency range low noise amplifier (43) and the second frequency range second level filter (44), arrive the described road network network (39) that closes from the signal of described second frequency range feeding network output then.
7. according to claim 5 and 6 described multifrequency patch antenna devices, it is characterized in that, the signal that the described first frequency range amplifying circuit comes described close the signal that comes with the described second frequency range amplifying circuit in the road network network (39) and merge after, through described multistage close road low noise amplifier (40,41) and amplify after output again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920129719 CN201364958Y (en) | 2009-01-22 | 2009-01-22 | Multifrequency patch antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920129719 CN201364958Y (en) | 2009-01-22 | 2009-01-22 | Multifrequency patch antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364958Y true CN201364958Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920129719 Expired - Fee Related CN201364958Y (en) | 2009-01-22 | 2009-01-22 | Multifrequency patch antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201364958Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474766A (en) * | 2013-09-23 | 2013-12-25 | 深圳市华信天线技术有限公司 | Antenna device and receiving system |
| CN113676241A (en) * | 2021-07-05 | 2021-11-19 | 中国人民解放军国防科技大学 | Multi-frequency outbound signal power amplification method and system of Beidou short message system |
-
2009
- 2009-01-22 CN CN 200920129719 patent/CN201364958Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474766A (en) * | 2013-09-23 | 2013-12-25 | 深圳市华信天线技术有限公司 | Antenna device and receiving system |
| CN103474766B (en) * | 2013-09-23 | 2015-11-25 | 深圳市华信天线技术有限公司 | A kind of antenna assembly and receiving system |
| CN113676241A (en) * | 2021-07-05 | 2021-11-19 | 中国人民解放军国防科技大学 | Multi-frequency outbound signal power amplification method and system of Beidou short message system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jia Yanbo Document name: Patent certificate of utility model |
|
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Huaxin Antenna Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Huaxin Antenna Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20170122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |