CN203434938U - Ultra-wideband high-gain low-noise amplifier - Google Patents
Ultra-wideband high-gain low-noise amplifier Download PDFInfo
- Publication number
- CN203434938U CN203434938U CN201320402494.7U CN201320402494U CN203434938U CN 203434938 U CN203434938 U CN 203434938U CN 201320402494 U CN201320402494 U CN 201320402494U CN 203434938 U CN203434938 U CN 203434938U
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- amplifier
- filter
- low noise
- noise amplifier
- synthesizer
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Abstract
The utility model discloses an ultra-wideband high-gain low-noise amplifier which comprises an LNA, a power divider, a first filter, a second filter, a first amplifier body, a second amplifier body, a synthesizer, a third amplifier body and a third filter. The output end of the LNA is connected with the input end of the power divider, the output end of the power divider is respectively connected with the input end of the first filter and the input end of the second filter, the output end of the first filter and the output end of the second filter are respectively connected with the input end of the synthesizer through the first amplifier body and the second amplifier body, and the output end of the synthesizer is connected with the input end of the third filter through the third amplifier body. After being amplified through the LNA, a signal enters the power divider to be divided into two signals, the signals are filtered through the first filter and amplified through the first amplifier body and the second amplifier body, and after the signals are synthesized into one signal through the synthesizer, the signal is amplified through the third amplifier body and filtered through the third filter to be output. The principle that the signal is amplified in a branching mode is adopted, the bandwidth is increased, meanwhile, multi-stage amplification is adopted, gains are increased, the structure is simple, and the performance is stable.
Description
Technical field
The utility model relates to a kind of low noise amplifier, particularly a kind of super-wide band high-gain low noise amplifier.
Background technology
Low noise amplifier, be Low Noise Amplifier, be commonly called as LNA, also claim LNA, front end product as the communications field, the quality of its performance has very important impact for telecommunication circuit, development along with the communication technology, RF application is more and more higher for the requirement of low noise amplifier, not only require low noise amplifier to have higher gain, also need low noise amplifier to have wider bandwidth simultaneously, to adapt to the requirement of RF application multi channel signals transmission, but the restriction due to noise factor, current low noise amplifier gain is not high enough, can not meet the circuit that has high-gain to require, current low noise amplifier bandwidth is less than 100M, more and more can not meet the requirement of super-wide band high-gain circuit.
Utility model content
For the problems referred to above, the utility model discloses a kind of super-wide band high-gain low noise amplifier, adopt the principle that signal is amplified along separate routes, bandwidth to be widened, multistage amplification simultaneously, increases gain, simple in structure, stable performance.
In order to address the above problem, the technical solution adopted in the utility model is:
A kind of low noise amplifier, comprise low noise amplifier, power splitter, the first filter, the second filter, the first amplifier, the second amplifier, synthesizer, the 3rd amplifier and the 3rd filter, wherein, the output of low noise amplifier connects the input of power splitter, and the output of power splitter connects respectively the input of first and second filter, the output of described first and second filter connects respectively the input of synthesizer via first and second amplifier, the output of this synthesizer connects the input of the 3rd filter via the 3rd amplifier.
What further, described low noise amplifier adopted is that model is the low noise amplifier chip of MGA-635P8.
What further, the first described filter and the second filter adopted is that model is the Surface Acoustic Wave Filter of TA1612A.
What further, described power splitter and synthesizer adopted is that model is the chip of QCN-19.
What further, the first described amplifier and the second amplifier adopted is that model is the amplifier chip of UPC823TK.
What further, the 3rd described amplifier adopted is that model is the amplifier chip of UPC2709TB.
This utility model compared with prior art, has following technique effect:
First: signal is processed along separate routes, expanded bandwidth;
Second: multistagely amplify, filtering, improve gain;
The 3rd: simple in structure, practical reliable, stable performance.
Accompanying drawing explanation
Fig. 1 is circuit system module map.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
As shown in Figure 1, the utility model discloses a kind of super-wide band high-gain low noise amplifier, comprise low noise amplifier, power splitter, the first filter, the second filter, the first amplifier, the second amplifier, synthesizer, the 3rd amplifier and the 3rd filter, wherein, the output of low noise amplifier connects the input of power splitter, and the output of power splitter connects respectively first, the input of two filters, described first, the output of two filters is respectively via first, two amplifiers connect the input of synthesizer, the output of this synthesizer connects the input of the 3rd filter via the 3rd amplifier.
Signal, after low noise amplifier amplifies, enters power splitter and is divided into two-way, and each road is through the first filter filtering, then amplifies through amplifier, and two paths of signals, behind the synthetic road of synthesizer, then amplifies through amplifier, after filter filtering, exports.
Low noise amplifier adopts is the low noise amplifier chip that the model of AVAGO company is MGA-635P8, and its operating frequency is 450MHz-4GHz, and gain is 18dB, and noise factor is 0.56dB, the first amplifier and the second amplifier adopt is that the model of Japanese NEC Corporation is UPC823TK chip, and its working frequency range is 0-2.4GHz, and gain is 20dB, and noise factor is 1.2dB, what put that the 3rd amplifier adopts is the amplifier chip that the model of Japanese NEC Corporation is UPC2709TB, its working frequency range is 0-2GHz, gain is 23dB, noise factor is 5.0dB, what power splitter and synthesizer adopted is that model is the chip of QCN-19, operating frequency is 1100MHz-1925MHz, the first filter and the second filter adopt is the Surface Acoustic Wave Filter that the model of Taiwan Asus is TA1612A, its center operating frequency is 1224MHz, bandwidth of operation is 108dB, signal is through the amplification of whole circuit third stage amplifier, according to the gain of above-mentioned said amplifier, the gain that can find out super-wide band high-gain low noise amplifier is greater than 40dB, according to the index parameter of filter, can find out that working band is MHz again, this circuit structure can be according to the size of needed actual gain, at the first amplifier, before the second amplifier and the 3rd amplifier, reasonably add attenuator, the attenuation multiple of attenuator calculates according to the gain of actual needs, attenuator can adopt the attenuator of circuit design.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.
Claims (2)
1. a super-wide band high-gain low noise amplifier, it is characterized in that: comprise low noise amplifier, power splitter, the first filter, the second filter, the first amplifier, the second amplifier, synthesizer, the 3rd amplifier and the 3rd filter, wherein, the output of low noise amplifier connects the input of power splitter, and the output of power splitter connects respectively first, the input of two filters, described first, the output of two filters is respectively via first, two amplifiers connect the input of synthesizer, the output of this synthesizer connects the input of the 3rd filter via the 3rd amplifier.
2. a kind of super-wide band high-gain low noise amplifier as claimed in claim 1, is characterized in that: what described low noise amplifier adopted is that model is the low noise amplifier chip of MGA-635P8.
3. a kind of super-wide band high-gain low noise amplifier as claimed in claim 1, is characterized in that: what the first described filter and the second filter adopted is that model is the Surface Acoustic Wave Filter of TA1612A.
4. a kind of super-wide band high-gain low noise amplifier as claimed in claim 1, is characterized in that: what described power splitter and synthesizer adopted is that model is the chip of QCN-19.
5. a kind of super-wide band high-gain low noise amplifier as claimed in claim 1, is characterized in that: what the first described amplifier and the second amplifier adopted is that model is the amplifier chip of UPC823TK.
6. a kind of super-wide band high-gain low noise amplifier as claimed in claim 1, is characterized in that: what the 3rd described amplifier adopted is that model is the amplifier chip of UPC2709TB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402494.7U CN203434938U (en) | 2013-07-08 | 2013-07-08 | Ultra-wideband high-gain low-noise amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402494.7U CN203434938U (en) | 2013-07-08 | 2013-07-08 | Ultra-wideband high-gain low-noise amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434938U true CN203434938U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320402494.7U Expired - Fee Related CN203434938U (en) | 2013-07-08 | 2013-07-08 | Ultra-wideband high-gain low-noise amplifier |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391054A (en) * | 2013-07-08 | 2013-11-13 | 吴江市同心电子科技有限公司 | Ultra wideband high-gain low-noise amplifier |
| CN104539249A (en) * | 2014-12-31 | 2015-04-22 | 四川科瑞纳信息技术有限公司 | Multi-channel signal multiplex amplification circuit |
| CN105006840A (en) * | 2015-07-31 | 2015-10-28 | 苏州欧可罗电子科技有限公司 | Wind motor regulating and controlling system based on low noise amplifier |
| CN105067676A (en) * | 2015-07-31 | 2015-11-18 | 苏州欧可罗电子科技有限公司 | Plant moisture detection system based on ultra-wide band high gain amplifier |
| CN105157932A (en) * | 2015-07-31 | 2015-12-16 | 苏州宏展信息科技有限公司 | Device air-tightness monitoring system based on low-noise amplifier |
| CN105158157A (en) * | 2015-07-31 | 2015-12-16 | 苏州欧可罗电子科技有限公司 | Plant water detection system based on filter circuit |
| CN105179165A (en) * | 2015-07-31 | 2015-12-23 | 苏州欧可罗电子科技有限公司 | Variable-pitch voltage stabilization wind power motor regulation and control system |
| CN106595844A (en) * | 2016-11-17 | 2017-04-26 | 江苏智石科技有限公司 | Wireless network-based industrial environment noise monitoring system |
| CN107565989A (en) * | 2017-09-28 | 2018-01-09 | 歌尔股份有限公司 | A kind of unmanned plane wide frequency antenna multiplexing method and device |
-
2013
- 2013-07-08 CN CN201320402494.7U patent/CN203434938U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391054A (en) * | 2013-07-08 | 2013-11-13 | 吴江市同心电子科技有限公司 | Ultra wideband high-gain low-noise amplifier |
| CN104539249A (en) * | 2014-12-31 | 2015-04-22 | 四川科瑞纳信息技术有限公司 | Multi-channel signal multiplex amplification circuit |
| CN104539249B (en) * | 2014-12-31 | 2018-03-13 | 四川科瑞纳信息技术有限公司 | A kind of multi channel signals are multiplexed amplifying circuit |
| CN105067676A (en) * | 2015-07-31 | 2015-11-18 | 苏州欧可罗电子科技有限公司 | Plant moisture detection system based on ultra-wide band high gain amplifier |
| CN105157932A (en) * | 2015-07-31 | 2015-12-16 | 苏州宏展信息科技有限公司 | Device air-tightness monitoring system based on low-noise amplifier |
| CN105158157A (en) * | 2015-07-31 | 2015-12-16 | 苏州欧可罗电子科技有限公司 | Plant water detection system based on filter circuit |
| CN105179165A (en) * | 2015-07-31 | 2015-12-23 | 苏州欧可罗电子科技有限公司 | Variable-pitch voltage stabilization wind power motor regulation and control system |
| CN105006840A (en) * | 2015-07-31 | 2015-10-28 | 苏州欧可罗电子科技有限公司 | Wind motor regulating and controlling system based on low noise amplifier |
| CN106595844A (en) * | 2016-11-17 | 2017-04-26 | 江苏智石科技有限公司 | Wireless network-based industrial environment noise monitoring system |
| CN107565989A (en) * | 2017-09-28 | 2018-01-09 | 歌尔股份有限公司 | A kind of unmanned plane wide frequency antenna multiplexing method and device |
| WO2019062201A1 (en) * | 2017-09-28 | 2019-04-04 | 歌尔股份有限公司 | Wide-frequency antenna multiplexing method and apparatus for unmanned aerial vehicle |
| CN107565989B (en) * | 2017-09-28 | 2020-07-10 | 歌尔股份有限公司 | Unmanned aerial vehicle broadband antenna multiplexing method and device |
| US11233537B2 (en) | 2017-09-28 | 2022-01-25 | Goertek Inc. | Wide-band antenna multiplexing method and device of unmanned aerial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |