CN102098067A - Microwave receiver front end based on online microelectro mechanical microwave power sensor - Google Patents
Microwave receiver front end based on online microelectro mechanical microwave power sensor Download PDFInfo
- Publication number
- CN102098067A CN102098067A CN201110003103XA CN201110003103A CN102098067A CN 102098067 A CN102098067 A CN 102098067A CN 201110003103X A CN201110003103X A CN 201110003103XA CN 201110003103 A CN201110003103 A CN 201110003103A CN 102098067 A CN102098067 A CN 102098067A
- Authority
- CN
- China
- Prior art keywords
- microwave
- receiver front
- online
- mems
- power detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a microwave receiver front end based on an online microelectro mechanical microwave power sensor. The microwave receiver front end converts partial microwave power coupled by a microelectro mechanical microwave (MEMS) film bridge into a direct current level by using the self test function of the MEMS microwave power sensor; the direct current level controls an attenuate and amplified preprocessor on line; when a microwave antenna receives too large or too small microwave signals, the output of the microwave receiver front keeps stable relatively; meanwhile, when the microwave antenna suddenly receives huge microwave signals, a low noise amplifier is protected, overload is avoided, and a linear dynamic range of the microwave receiver front end is enlarged, so that a complex automatic gain control (AGC) module used in the traditional microwave receiver front end is replaced to realize the function; moreover, the microwave receiver front end is realized based on the MEMS technology, so the microwave receiver front end also has the characteristics of the online MEMS microwave power sensor of low loss, small volume and the like.
Description
Technical field
The present invention proposes microwave receiver front end, belong to the technical field of microelectromechanical systems (MEMS) based on online microelectron-mechanical microwave power detector.
Background technology
In wireless communication system, automatic gain control (AGC) is the of paramount importance part of microwave receiver front end.It mainly comprises the AGC of analog-and digital-type.In general, the basic function of AGC in the microwave receiver front end is to receive excessive or too small microwave signal when antenna, and the gain of controlling low noise amplifier by the mode of closed loop feedback keeps relative stability output signal level.Yet, adopt the microwave receiver front end of traditional AGC technology to have a lot of deficiencies, as limited linear dynamic range, than lossy, and, be to carry out gain controlling by the interior close loop negative feedback of the output signal of circuit, outer close loop negative feedback implements comparatively complicated to avoid signal overloading.In recent years,, and online MEMS microwave power detector carried out deep research, made based on the MEMS technology and realize that the microwave receiver front end of above-mentioned functions becomes possibility along with the fast development of MEMS technology.
Summary of the invention
Technical problem:The purpose of this invention is to provide a kind of microwave receiver front end based on online microelectron-mechanical microwave power detector, detection certainly by online MEMS microwave power detector, the performance number that part is monitored is converted to DC level, this DC level On-line Control can decay and scalable preprocessor is stablized with the signal level of the input of maintenance low noise amplifier, after low noise amplifier through gaining fixing amplifies again, can guarantee that the output of this microwave receiver front end keeps stable; On the other hand, when the sudden microwave signal that receives super large of microwave antenna, can play the effect of protection low noise amplifier effectively, avoid its overload; Therefore, enlarged the linear dynamic range of microwave receiver, had higher linearity, lower loss and smaller volume, and improved the anti-level of burning based on the microwave receiver front end of online microelectron-mechanical microwave power detector.
Technical scheme:Microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention comprises 8 modules: microwave antenna, microwave filter, online MEMS microwave power detector, can decay and scalable preprocessor, low noise amplifier, frequency mixer, local oscillator and intermediate-frequency filter.When microwave antenna receives microwave signal, this microwave signal is through the selection of microwave filter, detection certainly by online MEMS microwave power detector again, On-line Control can decay and scalable preprocessor, make the flow through low noise amplifier of fixed gain of the metastable microwave signal of output, the microwave signal that then is exaggerated makes this microwave signal be down-converted to intermediate frequency through mixing, after the intermediate-frequency filter frequency-selecting, the receiver rear end just can obtain accessible intermediate-freuqncy signal again.
Online MEMS microwave power detector has been realized on-line monitoring, gain controlling and circuit protection with its superior microwave property and small size in microwave integrated circuit.It is coupled out a part to the microwave signal power of microwave filter output by a certain percentage by MEMS film bridge, and the microwave signal of the overwhelming majority directly outputs to and can decay and scalable preprocessor; The microwave power that is coupled is out absorbed by relevant terminal resistance and is converted into heat, thermoelectric pile near this terminal resistance absorbs this heat, there is the temperature difference in the cold and hot two ends that cause thermoelectric pile, according to the Seebeck effect, thereby on thermoelectric pile, produce the output of DC level, realize the detection certainly of microwave signal.
Microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention utilizes the self-checking function of online MEMS microwave power detector that part is converted to DC level by the microwave power of MEMS film bridge coupling, this DC level On-line Control can decay and scalable preprocessor, when receiving excessive or too small microwave signal, microwave antenna can decay and scalable preprocessor suitably reduces it or the output amplitude that improves microwave signal is stablized with the signal level of the input that keeps low noise amplifier by the DC level On-line Control, after low noise amplifier through gaining fixing amplifies again, can guarantee that the output of this microwave receiver front end keeps stable; In addition, when microwave antenna is sudden when receiving the microwave signal of super large, can decay and scalable preprocessor makes its amplitude that reduces microwave signal significantly, play the effect of protection low noise amplifier, avoid its overload by the DC level On-line Control; Therefore, based on the microwave receiver front end of online microelectron-mechanical microwave power detector self-checking function under the constant prerequisite of the gain that guarantees low noise amplifier by online MEMS microwave power detector, On-line Control can decay and scalable preprocessor is realized the metastable output of signal, replaced of the change in gain realization signal metastable output of traditional microwave receiver front end by AGC control low noise amplifier, thereby enlarged the linear dynamic range of microwave receiver, and has higher linearity, lower loss and smaller volume, and improved the anti-level of burning.
Beneficial effect:Compare with the microwave receiver front end of traditional employing AGC technology, the microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention has following significant advantage:
This invention utilize the self-checking function On-line Control of online MEMS microwave power detector can decay and
Scalable preprocessor, it has replaced the change in gain of traditional microwave receiver front end by the AGC module controls low noise amplifier of complexity, thereby realized the metastable output of microwave receiver front end very simply, and enlarged the linear dynamic range of microwave receiver front end.
2. this invention does not need the extra overload circuit of avoiding; can directly control and to decay and scalable pretreatment module by the sudden signal that receives super large of online MEMS microwave power detector monitoring microwave antenna; its overload is avoided in realization; play the effect of protection low noise amplifier, and improved the anti-level of burning of microwave receiver front end.
Description of drawings
Fig. 1 is based on the theory diagram of the microwave receiver front end of the online electric mechanical microwave power detector that declines.
Fig. 2 is the A-A and the B-B profile of online microelectron-mechanical microwave power detector.
Comprise among the figure: microwave antenna 1, microwave filter 2, online MEMS microwave power detector 3 can be decayed and scalable preprocessor 4, low noise amplifier 5, frequency mixer 6, local oscillator 7, intermediate-frequency filter 8, intermediate frequency output 9; Wherein online MEMS microwave power detector 3 also comprises: coplanar waveguide transmission line (CPW) 3-1, MEMS film bridge 3-2, insulating medium layer 3-3, terminal resistance 3-4, thermoelectric pile 3-5, direct current output 3-6, the substrate 3-7 of online MEMS microwave power detector.
Specific embodiments
The specific embodiments of the microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention is as follows:
Microwave receiver front end based on online microelectron-mechanical microwave power detector comprises 8 modules: microwave antenna 1, microwave filter 2, online MEMS microwave power detector 3, can decay and scalable preprocessor 4, low noise amplifier 5, frequency mixer 6, local oscillator 7 and intermediate-frequency filter 8.When microwave antenna 1 receives microwave signal, this microwave signal is through the frequency-selecting of microwave filter 2, detection certainly by online MEMS microwave power detector 3 again, On-line Control can decay and scalable preprocessor 4, make the flow through low noise amplifier 5 of fixed gain of the metastable microwave signal of output, the microwave signal that then is exaggerated makes this microwave signal be down-converted to intermediate frequency through mixing 6, after intermediate-frequency filter 8 frequency-selectings, the receiver rear end just can obtain accessible intermediate-freuqncy signal 9 again.
Online MEMS microwave power detector 3 has been realized on-line monitoring, gain controlling and circuit protection with its superior microwave property and small size in microwave integrated circuit.It is coupled out a part to the microwave signal power of microwave filter 2 outputs by a certain percentage by MEMS film bridge 3-2, and the microwave signal of the overwhelming majority directly outputs to and can decay and scalable preprocessor 4; The microwave power that is coupled is out transferred to heat by relevant terminal resistance 3-4 absorption, thermoelectric pile 3-5 near this terminal resistance absorbs this heat, there is the temperature difference in the cold and hot two ends that cause thermoelectric pile 3-5, according to the Seebeck effect, thereby on thermoelectric pile 3-5, produce the output 3-6 of DC level, realize the detection certainly of microwave signal.
Microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention utilizes the self-checking function of online MEMS microwave power detector 3 that part is converted to DC level 3-6 by the microwave power of MEMS film bridge 3-2 coupling, this DC level 3-6 On-line Control can decay and scalable preprocessor 4, when microwave antenna 1 receives excessive or too small microwave signal by DC level 3-6 On-line Control can decay and scalable preprocessor 4 make it suitably reduce or improve the output amplitude of microwave signal, signal level with the input that keeps low noise amplifier 5 is stable, after the fixing low noise amplifier 5 that gains amplifies, can guarantee that the output of this microwave receiver front end keeps stable again; In addition, when microwave antenna 1 is sudden when receiving the microwave signal of super large, by DC level 3-6 On-line Control can decay and scalable preprocessor 4 make its output amplitude that reduces microwave signal significantly, play the protection low noise amplifier 5 effect, avoid its overload; Therefore, based on the microwave receiver front end of online microelectron-mechanical microwave power detector self-checking function under the constant prerequisite of the gain that guarantees low noise amplifier 5 by online MEMS microwave power detector 3, On-line Control can decay and scalable preprocessor 4 is realized the metastable output of signal, replaced of the change in gain realization signal metastable output of traditional microwave receiver front end by AGC control low noise amplifier 5, thereby enlarged the linear dynamic range of microwave receiver, and has higher linearity, lower loss and smaller volume, and improved the anti-level of burning.
Distinguish whether to be the standard of this structure as follows:
Microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention adopts the self-checking function of online MEMS microwave power detector that part is converted to DC level by the microwave power of MEMS film bridge coupling; this DC level On-line Control can decay and scalable preprocessor; when microwave antenna receives excessive or too small microwave signal by the DC level On-line Control can decay and scalable preprocessor make it suitably reduce or improve the output amplitude of microwave signal; thereby the output of this microwave receiver front end is kept relative stability; simultaneously when the sudden microwave signal that receives super large of microwave antenna; can by the DC level On-line Control can decay and scalable preprocessor make it reduce the output amplitude of microwave signal significantly; play the effect of protection low noise amplifier; avoid its overload, thereby replaced adopting in traditional microwave receiver front end complicated AGC module to realize above-mentioned functions.
The structure that satisfies above condition promptly is considered as the microwave receiver front end based on online microelectron-mechanical microwave power detector of the present invention.
Claims (2)
1. microwave receiver front end based on online microelectron-mechanical microwave power detector, it is characterized in that this microwave receiver front end comprises microwave antenna (1), microwave filter (2), online MEMS microwave power detector (3), can decay and scalable preprocessor (4), low noise amplifier (5), frequency mixer (6), local oscillator (7), intermediate-frequency filter (8) and intermediate frequency output (9), microwave antenna (1) is connected to the input of microwave filter (2), the output of microwave filter (2) is connected with the microwave input of online MEMS microwave power detector (3), the microwave output of this online MEMS microwave power detector (3) and DC level (3-6) output are connected respectively to input and the control end that can decay with scalable preprocessor (4), can decay and scalable preprocessor (4) back connect low noise amplifier (5) successively, have the frequency mixer (6) and the intermediate-frequency filter (8) of local oscillator (7), realize the accessible metastable intermediate-freuqncy signal in microwave receiver rear end (9) at last.
2. the microwave receiver front end based on online microelectron-mechanical microwave power detector according to claim 1, it is characterized in that online MEMS microwave power detector (3) has a MEMS film bridge (3-2), it is across on the CPW that is made of holding wire and ground wire (3-1), below at MEMS film bridge (3-2) covers insulating medium layer (3-3), the two ends of MEMS film bridge (3-2) are connected with the holding wire of two other CPW (3-1) in the coupling branch, the other end of these two CPW (3-1) is connected with terminal resistance (3-4) respectively, two groups of thermoelectric piles (3-5) respectively near but is not connected with terminal resistance (3-4), the DC level (3-6) of this two groups of thermoelectric piles (3-5) series connection output is connected to the control end that can decay with scalable preprocessor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110003103 CN102098067B (en) | 2011-01-07 | 2011-01-07 | Microwave receiver front end based on online microelectro mechanical microwave power sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110003103 CN102098067B (en) | 2011-01-07 | 2011-01-07 | Microwave receiver front end based on online microelectro mechanical microwave power sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102098067A true CN102098067A (en) | 2011-06-15 |
| CN102098067B CN102098067B (en) | 2013-10-30 |
Family
ID=44130955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110003103 Expired - Fee Related CN102098067B (en) | 2011-01-07 | 2011-01-07 | Microwave receiver front end based on online microelectro mechanical microwave power sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102098067B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746161A (en) * | 2014-01-08 | 2014-04-23 | 东南大学 | Self-protecting microwave equilizer based on MEMS (Micro Electro Mechanical System) structure |
| CN107483065A (en) * | 2017-08-15 | 2017-12-15 | 东南大学 | The clamped beam microwave receiver front end that internet of things oriented release model is collected |
| CN107483066A (en) * | 2017-08-15 | 2017-12-15 | 东南大学 | The standing wave of internet of things oriented and the clamped beam receiver front end of clutter collection of energy |
| CN107483064A (en) * | 2017-08-15 | 2017-12-15 | 东南大学 | The cantilever beam receiver front end that internet of things oriented standing wave energy and excess energy are collected |
| CN107493110A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The cantilever beam receiver front end of the clutter collection of energy of internet of things oriented |
| CN107493111A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The standing wave of internet of things oriented and the cantilever beam receiver front end of clutter collection of energy |
| CN107493108A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The cantilever beam microwave receiver front end that a kind of internet of things oriented excess energy is collected |
| CN107565986A (en) * | 2017-08-15 | 2018-01-09 | 东南大学 | The cantilever beam microwave receiver front end that internet of things oriented release model is collected |
| CN107565996A (en) * | 2017-08-15 | 2018-01-09 | 东南大学 | The cantilever beam receiver front end that internet of things oriented standing wave energy and release model are collected |
| CN107565999A (en) * | 2017-08-15 | 2018-01-09 | 东南大学 | The clamped beam receiver front end of the clutter collection of energy of internet of things oriented |
| CN107659320A (en) * | 2017-08-15 | 2018-02-02 | 东南大学 | The cantilever beam receiver front end that internet of things oriented excess energy and release model are collected |
| CN113321177A (en) * | 2021-05-28 | 2021-08-31 | 北京京东方技术开发有限公司 | Flexible MEMS device and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001311671A (en) * | 2000-05-01 | 2001-11-09 | Wacoh Corp | Force-detecting element and force sensor using the same |
| CN1588098A (en) * | 2004-09-20 | 2005-03-02 | 东南大学 | On-line microwave power micro mechanical sensor and its producing method |
| CN101046487A (en) * | 2007-04-27 | 2007-10-03 | 东南大学 | Microelectromechanical microwave powersensor with two balanced thermopiles and its prepn process |
| CN101788605A (en) * | 2010-02-01 | 2010-07-28 | 东南大学 | Wireless-receiving system for detecting microelectronic mechanical microwave frequency and preparation method thereof |
-
2011
- 2011-01-07 CN CN 201110003103 patent/CN102098067B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001311671A (en) * | 2000-05-01 | 2001-11-09 | Wacoh Corp | Force-detecting element and force sensor using the same |
| CN1588098A (en) * | 2004-09-20 | 2005-03-02 | 东南大学 | On-line microwave power micro mechanical sensor and its producing method |
| CN101046487A (en) * | 2007-04-27 | 2007-10-03 | 东南大学 | Microelectromechanical microwave powersensor with two balanced thermopiles and its prepn process |
| CN101788605A (en) * | 2010-02-01 | 2010-07-28 | 东南大学 | Wireless-receiving system for detecting microelectronic mechanical microwave frequency and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨剑，刘华: "《微波信号电平在线检测方法》", 《福建电脑》 * |
| 范小燕，廖小平，黄庆安: "《MEMS微波功率传感器的研究与进展》", 《微波学报》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746161A (en) * | 2014-01-08 | 2014-04-23 | 东南大学 | Self-protecting microwave equilizer based on MEMS (Micro Electro Mechanical System) structure |
| CN103746161B (en) * | 2014-01-08 | 2015-07-29 | 东南大学 | Based on the self-shield microwave equalizer of MEMS structure |
| CN107483065A (en) * | 2017-08-15 | 2017-12-15 | 东南大学 | The clamped beam microwave receiver front end that internet of things oriented release model is collected |
| CN107483066A (en) * | 2017-08-15 | 2017-12-15 | 东南大学 | The standing wave of internet of things oriented and the clamped beam receiver front end of clutter collection of energy |
| CN107483064A (en) * | 2017-08-15 | 2017-12-15 | 东南大学 | The cantilever beam receiver front end that internet of things oriented standing wave energy and excess energy are collected |
| CN107493110A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The cantilever beam receiver front end of the clutter collection of energy of internet of things oriented |
| CN107493111A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The standing wave of internet of things oriented and the cantilever beam receiver front end of clutter collection of energy |
| CN107493108A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The cantilever beam microwave receiver front end that a kind of internet of things oriented excess energy is collected |
| CN107565986A (en) * | 2017-08-15 | 2018-01-09 | 东南大学 | The cantilever beam microwave receiver front end that internet of things oriented release model is collected |
| CN107565996A (en) * | 2017-08-15 | 2018-01-09 | 东南大学 | The cantilever beam receiver front end that internet of things oriented standing wave energy and release model are collected |
| CN107565999A (en) * | 2017-08-15 | 2018-01-09 | 东南大学 | The clamped beam receiver front end of the clutter collection of energy of internet of things oriented |
| CN107659320A (en) * | 2017-08-15 | 2018-02-02 | 东南大学 | The cantilever beam receiver front end that internet of things oriented excess energy and release model are collected |
| CN113321177A (en) * | 2021-05-28 | 2021-08-31 | 北京京东方技术开发有限公司 | Flexible MEMS device and electronic equipment |
| CN113321177B (en) * | 2021-05-28 | 2023-03-10 | 北京京东方技术开发有限公司 | Flexible MEMS device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102098067B (en) | 2013-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102098067B (en) | Microwave receiver front end based on online microelectro mechanical microwave power sensor | |
| CN102176679B (en) | Reconfigurable microwave receiver front-end based on micro-electro-mechanical microwave power sensor | |
| CN209117866U (en) | A kind of Larger Dynamic range optical receiving circuit based on avalanche diode | |
| CN103650355A (en) | Non-foster circuit stabilization circuit and method | |
| SE9702214L (en) | Temperature compensated power detection circuit with wide dynamic range for portable radio frequency transmission terminals | |
| CN202092971U (en) | Detecting system for improving stability of high-sensitiveness T-Hz mixer | |
| CN204228950U (en) | A kind of radar system L-band transceiver | |
| JP2006319616A5 (en) | ||
| CN203645631U (en) | Radio frequency module smart protecting device | |
| CN107659353A (en) | Using the relay transmission system based on short-range communication of bandpass filter | |
| Xu et al. | A broad W-band detector utilizing zero-bias direct detection circuitry | |
| CN203984364U (en) | There is synchronization and control AGC and the ALC high-gain active circuit assembly of function | |
| CN207472975U (en) | A kind of solar radio radiation flow monitoring system | |
| CN208479603U (en) | A kind of radio-frequency transmitter with raising circuit dynamic range functions | |
| CN204206117U (en) | A kind of amplifier of creatures' physical electric signals circuit of fast detector | |
| CN101414838B (en) | Passive microwave interception system | |
| CN204559585U (en) | Be applied to the phase splitter that photoreceiver front-end TIA is with RSSI | |
| CN208971476U (en) | A kind of wideband power amplifer | |
| CN101595653B (en) | Diversity receiving device | |
| CN106713703B (en) | A kind of radio-frequency power probe video output signals amplification system and amplification method | |
| CN101340196A (en) | Multichannel digital detection IF amplifier | |
| CN111965440A (en) | Terahertz receiver noise test system | |
| CN205792569U (en) | A kind of S-band RF transceiver | |
| CN204217131U (en) | Based on the wireless sensor network data acquisition system of the optimum gain selected of CC2530 | |
| CN207475566U (en) | A kind of building type photoreceiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20170107 |