CN107395230A - The clamped beam receiver front end that internet of things oriented excess energy and release model are collected - Google Patents
The clamped beam receiver front end that internet of things oriented excess energy and release model are collected Download PDFInfo
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- CN107395230A CN107395230A CN201710697340.8A CN201710697340A CN107395230A CN 107395230 A CN107395230 A CN 107395230A CN 201710697340 A CN201710697340 A CN 201710697340A CN 107395230 A CN107395230 A CN 107395230A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The clamped beam receiver front end that the internet of things oriented excess energy and release model of the present invention is collected is using microwave antenna reception signal and accesses microwave filter and is filtered, then signal enters the clamped beam perseverance width device that the excess energy of Autonomous test is collected, collect excess energy and realize permanent width output, after the permanent width signal of output enters low-noise amplifier and is exaggerated, into the clamped beam frequency mixer of oscillation signals leak collection of energy, the energy of the local oscillated signal of mixing structure leakage is collected, the signal after mixing realizes that intermediate frequency exports into intermediate-frequency filter.The excess energy that is collected and leakage energy are stored in battery after being converted into DC voltage by AC/DC modular converters, store energy battery it is in parallel with dc source after, be active circuit power supply.The present invention not only realizes reception signal function, and can collect unnecessary energy and release model, prevents local oscillated signal self-mixing, reduces power consumption, protects low-noise amplifier, improve the stability of system.
Description
Technical field
The clamped beam receiver front end that the present invention proposes a kind of internet of things oriented excess energy and release model is collected, category
In microelectromechanical systems (MEMS) technical field.
Background technology
Internet of Things has very bright development prospect, and Internet of Things also develops like a raging fire at present.As Internet of Things
The microwave receiver front end of one of core component, generally comprise microwave antenna, microwave filter, low-noise amplifier, frequency mixer,
Local oscillator and intermediate-frequency filter.But gradually appear in the development of Internet of Things, the drawbacks of some receiver front ends.Such as
Make the control mode of stable output signal using the gain of AGC technical controlling low-noise amplifiers, receive antenna is sudden
During big signal, internal low-noise amplifier easily burns, and reliability is not high；Further, since local oscillated signal power ratio is mixed
The power of the microwave signal of device input is much bigger, has part local oscillated signal through being mixed device and leaks into low noise amplification
Device, then it is blocked producing back wave, this back wave is mixed with local oscillated signal again, then can produce direct current letter in mixing
Number, it can not only cause DC maladjustment, can also increase DC power.The present invention is filtered based on MEMS energy collection technologies and MEMS
Device technology, what is invented is the clamped beam receiver front end of internet of things oriented excess energy and release model collection.
The content of the invention
Goal of the invention：Collected it is an object of the invention to provide a kind of internet of things oriented excess energy and release model clamped
Beam receiver front end.Receiver front end uses microwave antenna reception signal, and access microwave filter is filtered, filtered letter
Number enter Autonomous test excess energy collect clamped beam perseverance width device, collect excess energy, and pass through Autonomous test realize output letter
It is number constant, while the direct current biasing point of rear end low-noise amplifier need not be changed so that no longer needed in low-noise amplifier multiple
Miscellaneous AGC modules, the linearity of low-noise amplifier is improved, in the sudden microwave signal for receiving super large of microwave antenna
When, it can effectively act as protecting the effect of low-noise amplifier.The clamped beam perseverance width device output that the excess energy of Autonomous test is collected
Constant microwave signal is amplified into low-noise amplifier, and exaggerated microwave signal enters oscillation signals leak collection of energy
Clamped beam frequency mixer, while conventional mixer is realized, DC maladjustment caused by local oscillated signal self-mixing is eliminated, and receive
The energy of the local oscillated signal of collection mixing structure leakage, the signal after mixing connect intermediate-frequency filter, finally realize that intermediate frequency exports.
Two kinds of energy being collected above are stored in rechargeable battery after being converted into DC voltage by AC/DC modular converters simultaneously, are charged
Battery is connected with after dc source parallel connection with active circuit, realizes the self-powered of active circuit.
Technical scheme：In order to solve the above technical problems, the present invention proposes a kind of internet of things oriented excess energy and leakage
The clamped beam receiver front end of collection of energy.Before the clamped beam receiver that the internet of things oriented excess energy and release model are collected
End includes:Clamped beam perseverance width device, the low noise that microwave antenna, microwave filter, rechargeable battery, the excess energy of Autonomous test are collected
Clamped beam frequency mixer, local oscillator, intermediate-frequency filter, the dc source of amplifier, oscillation signals leak collection of energy.
Microwave antenna, for receiving microwave signal.
Microwave filter, filter out the clutter in the signal that antenna receives.
Rechargeable battery, the DC voltage energy storage that AC/DC modular converters 1 and AC/DC modular converters 2 12 are obtained
Among battery, at the same it is in parallel with dc source 10, realize self-powered to active circuit.
The clamped beam perseverance width device that the excess energy of Autonomous test is collected, is by 4 coplanar waveguide structures, 2 clamped beams and 4
Pole plate is formed.The first end 18-1 of main signal line forms CPW (co-planar waveguide) with ground wire and is used as signal input part, clamped beam one
20 across clamped beam is vacantly formed on this CPW two ground wires and between signal wire, there are two capacitance poles the lower section of clamped beam 1
Plate 21-1 and 21-2, pole plate form capacitance structure with clamped beam；In the middle part of main signal line, clamped beam 2 22 forms clamped beam with anchor area
It is suspended from above signal wire and forms coupled capacitor, anchor area and the ground wire of clamped beam respectively constitutes the transmission line CPW of two branch roads, clamped
Beam 2 22 is the signal wire for coupling branch road, there is two drop-down pole plates between the lower section anchor area of clamped beam 2 22 and main signal line respectively
The CPW that 24-1 and 24-2, anchor area 23-2 are formed with ground wire connects AC/DC modular converters 1；Second end 18-2 of main signal line with
Ground wire forms CPW as signal output part.Microwave signal of the clamped beam perseverance width device that the excess energy of Autonomous test is collected input
The signal output of fixed amplitude is processed into, is effectively protected late-class circuit, while rear end low-noise amplifier need not be changed
Direct current biasing point so that the AGC modules of complexity are no longer needed in low-noise amplifier, improve the linear of low-noise amplifier
Degree.
Low-noise amplifier, amplify the microwave letter of the stabilization of the clamped beam perseverance width device output of the excess energy collection of Autonomous test
Number, and access the clamped beam frequency mixer of oscillation signals leak collection of energy.
The clamped beam frequency mixer of oscillation signals leak collection of energy, it is by bandpass filter 11, AC/DC modular converters 2 12
Formed with mixing structure 16.Mixing structure 16 is three-port network, connects signal input port 14, local oscillator 7 respectively
With mixed frequency signal output port 15, the input of bandpass filter 11 is connected with being mixed the input of structure 16, local oscillations
Device 7 is connected with being mixed the local oscillated signal input port 13 of structure 16, the output termination AC/DC moduluss of conversion of bandpass filter 11
Block 2 12, AC/DC modular converters 2 12 are connected with rechargeable battery realizes collection of energy.The wherein centre frequency of bandpass filter 11
Energy absorption identical with the frequency of local oscillated signal, will being leaked by local oscillated signal by mixing structure 16, solution
Determined leakage local oscillated signal self-mixing the problem of, and have collected by local oscillated signal through be mixed structure leakage energy
Amount, and input signal belongs to the stopband frequency domain of bandpass filter 11, its frequency is in beyond the passband of bandpass filter 11, will not
By bandpass filter 11, mixing structure 16 is directly entered.
Local oscillator, produce local oscillated signal.
Intermediate-frequency filter, intermediate-freuqncy signal is exported after filtering.
Beneficial effect：
The present invention has advantages below relative to existing microwave receiver：
1. the clamped beam receiver front end that the internet of things oriented excess energy and release model of the present invention are collected includes self-test
The clamped beam perseverance width device that the excess energy of survey is collected.Described permanent width device is only needed under additional direct voltage drive, and control is solid
Degree of coupling of the strutbeam to different input power signal, you can ensure the signal of output constant amplitude, while the signal quilt coupled
AC/DC modules are converted to DC voltage, are ultimately stored in rechargeable battery；When microwave antenna receives the signal of super large, from
Signal output of the clamped beam perseverance width device that the excess energy of detection is collected the microwave signal process of input into fixed amplitude, effectively
Protect rear class amplifier circuit in low noise, improve the anti-of microwave receiver front end and burn level, in addition, without change after
Hold the direct current biasing point of low-noise amplifier so that the AGC modules of complexity are no longer needed in low-noise amplifier, improve low noise
The linearity of acoustic amplifier；
2. the clamped beam receiver front end that the internet of things oriented excess energy and release model of the present invention are collected includes vibration
The clamped beam frequency mixer of signals leakiness collection of energy.Described frequency mixer has added bandpass filter before traditional mixing structure,
The centre frequency of bandpass filter is identical with the frequency of local oscillated signal, and mixing structure can will be passed through by local oscillated signal
The energy absorption of leakage, solve the problems, such as the local oscillated signal self-mixing of leakage, and input signal belongs to bandpass filter
Stopband frequency domain, its frequency is in beyond the passband of bandpass filter, will not be directly entered mixing knot by bandpass filter
Structure, this, which is designed, causes the energy of leakage to be collected, and is finally stored in rechargeable battery, reduces DC power；
3. rechargeable battery is in parallel with dc source, self-powered is realized to active circuit.
Brief description of the drawings
The principle for the clamped beam receiver front end that Fig. 1 collects for the internet of things oriented excess energy and release model of the present invention
Block diagram.
Fig. 2 is the top view for the clamped beam perseverance width device that the excess energy of Autonomous test is collected.
Fig. 3 is the profile in the clamped beam perseverance width device AA ' directions that the excess energy of Autonomous test is collected.
Fig. 4 is the profile in the clamped beam perseverance width device BB ' directions that the excess energy of Autonomous test is collected.
Fig. 5 is the structure chart of the clamped beam frequency mixer of oscillation signals leak collection of energy.
Fig. 6 is the schematic diagram of bandpass filter 11.
The theory diagram for the clamped beam receiver front end that internet of things oriented excess energy and release model are collected includes：It is micro-
Wave antenna 1, microwave filter 2, rechargeable battery 3, the clamped beam perseverance width device 4 of the excess energy collection of Autonomous test, low noise amplification
Device 5, the clamped beam frequency mixer 6 of oscillation signals leak collection of energy, local oscillator 7, intermediate-frequency filter 8, intermediate frequency output 9, directly
Flow power supply 10.The clamped beam perseverance width device 4 that the excess energy of Autonomous test is collected is by main signal line 18, the 19-1 of ground wire one, the 19- of ground wire two
2, the 19-3 of ground wire three, the 19-4 of ground wire four, clamped beam 1, the 21-1 of capacitor plate one, the 21-2 of capacitor plate two, clamped beam 2 22,
The 23-1 of anchor area one, the 23-2 of anchor area two, pull down the 24-1 of pole plate one, drop-down pole plate two 24-2, Si3N4Dielectric layer one 25-1, Si3N4It is situated between
Matter layer two 25-2, SiO226 and AC/DC of layer modular converters 1 are formed.The clamped beam frequency mixer of oscillation signals leak collection of energy
6, by signal input port 14, mixed frequency signal output port 15, bandpass filter 11, AC/DC modular converters 2 12, are mixed structure
16 and local oscillated signal input port 13 form；Bandpass filter 11 is made up of planar inductor L1, L2 and condenser type clamped beam
Electric capacity K1 and K2 composition.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
The specific implementation for the clamped beam receiver front end that the internet of things oriented excess energy and release model of the present invention is collected
Scheme is as follows：
The present invention proposes that internet of things oriented excess energy and the clamped beam receiver front end of release model collection include：Microwave
Antenna 1, microwave filter 2, rechargeable battery 3, the clamped beam perseverance width device 4 of the excess energy collection of Autonomous test, low-noise amplifier
5, the clamped beam frequency mixer 6 of oscillation signals leak collection of energy, local oscillator 7, intermediate-frequency filter 8, intermediate frequency output 9, direct current
Power supply 10.The clamped beam perseverance width device 4 that the excess energy of Autonomous test is collected is by main signal line 18, the 19-1 of ground wire one, the 19-2 of ground wire two,
The 19-3 of ground wire three, the 19-4 of ground wire four, clamped beam 1, the 21-1 of capacitor plate one, the 21-2 of capacitor plate two, clamped beam 2 22, anchor
The 23-1 of area one, the 23-2 of anchor area two, pull down the 24-1 of pole plate one, drop-down pole plate two 24-2, Si3N4Dielectric layer one 25-1, Si3N4Medium
Two 25-2 of layer, SiO2 layers 26 and AC/DC modular converters 1 are formed.The clamped beam frequency mixer 6 of oscillation signals leak collection of energy
By signal input port 14, mixed frequency signal output port 15, bandpass filter 11, AC/DC modular converters 2 12, structure 16 is mixed
Formed with local oscillated signal input port 13.Bandpass filter 11 is made up of planar inductor L1, L2 and condenser type clamped beam
Electric capacity K1 and K2 are formed.
As shown in figure 1, microwave antenna 1 receives microwave signal, the signal is miscellaneous in signal after microwave filter 2
Ripple is filtered out, then signal reach next stage Autonomous test excess energy collect clamped beam perseverance width device 4, Autonomous test it is unnecessary
The clamped beam perseverance width device 4 of collection of energy realizes the inspection of signal power size by measuring capacitance size between clamped beam and pole plate
Survey, and the input signal of different proportion is coupled by coupled beams so that export the power invariability of microwave signal.Firm power it is micro-
Ripple signal accesses the low-noise amplifier 5 of fixed gain, and then exaggerated microwave signal is received by oscillation signals leak energy
The clamped beam frequency mixer 6 of collection, except realize conventional mixer structure input signal is downconverted into the function of intermediate-freuqncy signal in addition to,
The energy of the local oscillated signal of mixing structure leakage can be collected.Signal after mixing is after the filtering of intermediate-frequency filter 8, just
It can obtain manageable intermediate frequency output 9.The clamped beam perseverance width device 4 and oscillation signals leak energy that the excess energy of Autonomous test is collected
The AC/DC modular converters for measuring the clamped beam frequency mixer 6 collected connect rechargeable battery 3 respectively, and rechargeable battery 3 and dc source 10 are simultaneously
After connection, common is low-noise amplifier 5, and the clamped beam frequency mixer 6 and local oscillator 7 of oscillation signals leak collection of energy provide
Energy.
Fig. 2, Fig. 3 and Fig. 4 are the schematic diagrames for the clamped beam perseverance width device that the excess energy of Autonomous test is collected, and signal is from signal wire
18 18-1 ends input, first end 18-1 and the 19-1 of ground wire one, the 19-2 of ground wire two of signal wire 18 form CPW, clamped beam 1
Across on this CPW 19-1 of ground wire one and ground wire 19-2, the 21-1 of capacitor plate one be located at signal wire 18 and the 19-1 of ground wire one it
Between clamped beam 1 underface, the 21-2 of capacitor plate two is being located between signal wire 18 and the 19-2 of ground wire two clamped beam 1 just
Lower section, this pair of pole plates are symmetrical on signal wire, also covered on the signal wire immediately below clamped beam 1 and on capacitor plate
One layer of 25-1 of Si3N4 dielectric layers one, clamped beam 2 22 is suspended from the top of signal wire 18 and the 23-1 of anchor area one and the 23-2 phases of anchor area two
Even form fixed beam structure, the drop-down 24-1 of pole plate one be located at clamped beam 2 22 between signal wire 18 and the 23-1 of anchor area one just under
Side, the drop-down 24-2 of pole plate two are located at the underface of clamped beam 2 22 between signal wire 18 and the 23-2 of anchor area two, two drop-down pole plates
It is symmetrical on signal wire 18, and the signal immediately below the drop-down 24-1 of pole plate one, the drop-down 24-2 of pole plate two and clamped beam 2 22
One layer of Si3N4 dielectric layers two 25-2, the 23-1 of anchor area one and the 23-2 of anchor area two are also covered with line and forms CPW, anchor area two with ground wire
23-2 connection AC/DC modular converters 1,18-2 ends and the 19-3 of ground wire three, the 19-4 of ground wire four of signal wire 18 form CPW, and make
For output end.
Fig. 5 is the structure chart of the clamped beam frequency mixer of oscillation signals leak collection of energy, oscillation signals leak collection of energy
Clamped beam frequency mixer be signal input port 14, mixed frequency signal output by bandpass filter 11, AC/DC modular converters 2 12
Port 15 and mixing structure 16 are formed, wherein mixing structure 16 is three-port network；Signal input port 14 and bandpass filter
After 11 input is connected, then the input with being mixed structure 16 is connected, the output end connection AC/DC conversions of bandpass filter 11
Module 2 12, the local oscillated signal input port 13 of mixing structure 16 connect the output end of local oscillator 7, ultimately mixing knot
Intermediate-freuqncy signal after the output mixing of the output port 15 of structure 16.The centre frequency of bandpass filter 11 and the frequency of local oscillated signal
It is identical, by the energy absorption leaked by local oscillated signal by mixing structure, can solve the local oscillated signal of leakage
The problem of self-mixing, and the input signal of the frequency mixer of oscillator signal leakage collection of energy belongs to the stopband frequency of bandpass filter 11
Domain, its frequency are in beyond the passband of bandpass filter 11, will not be directly entered mixing structure 16 by bandpass filter 11.
As shown in fig. 6, the bandpass filter 11 is by planar inductor L1, planar inductor L2 and condenser type clamped beam K1, electricity
Appearance formula clamped beam K2 is formed.Wherein condenser type clamped beam K1 one end is as microwave signal input port, other end connection plane
Inductance L1, condenser type clamped beam K1 metal pad connections ground, the planar inductor L1 other end and planar inductor L2, condenser type are solid
Strutbeam K2 is connected, and planar inductor L2 other end ground connection, the condenser type clamped beam K1 other end is hanging, condenser type clamped beam K1's
Output end of the metal pad leads as wave filter, by controlling condenser type clamped beam K1 and condenser type clamped beam K2 drop-down to drive
Dynamic voltage can adjust electric capacity C1, C2 of access size so as to adjust the passband frequency domain of wave filter.
Present invention be distinguished in that：The clamped beam that the internet of things oriented excess energy and release model of the present invention is collected
The clamped beam perseverance width device that the excess energy that receiver front end includes Autonomous test is collected.The clamped beam that the excess energy of Autonomous test is collected
Permanent width device employs CPW transmission lines and fixed beam structure.Autonomous test part, electric capacity is formed using clamped beam 2 22 and pole plate, by
Cause beam to produce drop-down displacement to the electrostatic force of clamped beam in input signal, realized by surveying capacitance size between beam and pole plate
The detection of input signal power size, input signal is lost low；After completing signal detection, under additional DC voltage control,
Clamped beam 2 22 is set to produce drop-down displacement, so as to change the coupled capacitor between clamped beam 2 22 and signal wire, for different capacity
Input signal will be coupled out in varing proportions by clamped beam, with ensure the permanent width of signal export, meanwhile, the energy being coupled out
Collected, and stored in the battery by AC/DC modular converters；When microwave antenna receives the signal of super large, permanent width device handle
The microwave signal process of input is effectively protected rear class amplifier circuit in low noise, improved into the signal output of fixed amplitude
The anti-of microwave receiver front end burns level, in addition, need not change the direct current biasing point of rear end low-noise amplifier so that low
The AGC modules of complexity are no longer needed in noise amplifier, improve the linearity of low-noise amplifier.
The clamped beam receiver front end that the internet of things oriented excess energy and release model of the present invention is collected, which includes vibration, to be believed
The clamped beam frequency mixer 6 that number release model is collected.The clamped beam frequency mixer 6 of oscillation signals leak collection of energy is in traditional mixing
In parallel bandpass filter and AC/DC modular converters are collecting the local oscillated signal energy leaked by mixing structure before structure
Amount.Bandpass filter is made up of planar inductor and condenser type clamped beam, by the drop-down for simply controlling condenser type clamped beam
Driving voltage come adjust access filter network electric capacity size, so as to adjust the passband frequency domain of wave filter so that input signal
It will not be filtered out by the wave filter, and the oscillator signal to be come by the leakage of mixing structure can reach AC/DC moduluss of conversion by wave filter
Block, and be converted to direct current signal and collect, it is stored among rechargeable battery.
The clamped beam receiver front end that the internet of things oriented excess energy and release model of the present invention is collected includes charging electricity
Pond 3.It is low-noise amplifier 5 after rechargeable battery 3 is in parallel with dc source 10, the clamped beam of oscillation signals leak collection of energy
Frequency mixer 6, local oscillator 7 are powered, and realize the self-powered of active circuit.
Meet conditions above structure can be considered the present invention internet of things oriented excess energy and release model collect
Clamped beam receiver front end.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
- A kind of 1. clamped beam receiver front end that internet of things oriented excess energy and release model are collected, it is characterised in that including Microwave antenna (1), microwave filter (2), rechargeable battery (3), Autonomous test excess energy collect clamped beam perseverance width device (4), Low-noise amplifier (5), the clamped beam frequency mixer (6) of oscillation signals leak collection of energy, local oscillator (7), intermediate frequency filtering Device (8), intermediate frequency output (9) and dc source (10)：Microwave antenna (1) is connected to the input of microwave filter (2), microwave filter The input for the clamped beam perseverance width device (4) that the excess energy of ripple device (2) output end and Autonomous test is collected is connected, Autonomous test it is more The output for the clamped beam perseverance width device (4) that complementary energy is collected is connected with the input of low-noise amplifier (5), low-noise amplifier (5) signal input port (14) of the clamped beam frequency mixer (6) of output connection oscillation signals leak collection of energy, local oscillations The output end of device (7) and the local oscillated signal input port of the clamped beam frequency mixer (6) of oscillation signals leak collection of energy (13) it is connected, mixed frequency signal output port (15) and the intermediate frequency of the clamped beam frequency mixer (6) of oscillation signals leak collection of energy are filtered Ripple device (8) input is connected, and the output end of intermediate-frequency filter obtains the accessible metastable intermediate frequency in microwave receiver rear end Export (9)；The clamped beam perseverance width device (4) and the clamped beam of oscillation signals leak collection of energy that the excess energy of Autonomous test is collected mix Frequency device (6) connection rechargeable battery (3), is low-noise amplifier (5) after rechargeable battery (3) is in parallel with dc source (10), vibration The clamped beam frequency mixer (6) and local oscillator (7) of signals leakiness collection of energy provide energy and realize self-powered；It is described from The clamped beam perseverance width device (4) that the excess energy of detection is collected have collected excess energy and be stored in rechargeable battery (3), effectively Protect the low-noise amplifier (5) of rear class so that the AGC modules of complexity are no longer needed in low-noise amplifier (5), are improved The linearity of low-noise amplifier (5)；The clamped beam frequency mixer (6) of oscillation signals leak collection of energy have collected by local oscillations Signal avoids local oscillated signal self-mixing, reduced by being mixed the energy of structure leakage and being stored in rechargeable battery (3) DC power.
- 2. the clamped beam receiver front end that internet of things oriented excess energy according to claim 1 and release model are collected, It is characterized in that the clamped beam perseverance width device (4) that the excess energy of described Autonomous test is collected is by signal wire (18), ground wire one (19-1), ground wire two (19-2), ground wire three (19-3), ground wire four (19-4), clamped beam one (20), capacitor plate one (21-1), Capacitor plate two (21-2), clamped beam two (22), anchor area one (23-1), anchor area two (23-2), drop-down pole plate one (24-1), drop-down Pole plate two (24-2) is formed；Signal inputs from the first end (18-1) of signal wire (18), the first end (18- of signal wire (18) 1) and ground wire one (19-1), ground wire two (19-2) form CPW, clamped beam one (20) across this CPW ground wire one (19-1) and On ground wire two (19-2), capacitor plate one (21-1) is located at clamped beam one (20) between signal wire (18) and ground wire one (19-1) Underface, capacitor plate two (21-2) are located at the underface of clamped beam one (20) between signal wire (18) and ground wire two (19-2), This pair of pole plates are symmetrical on signal wire, on the signal wire immediately below clamped beam one (20) and are also covered with one on capacitor plate Layer Si3N4Dielectric layer one (25-1), clamped beam two (22) are suspended from above signal wire (18) and anchor area one (23-1) and two (23-2) phases Fixed beam structure is even formed, drop-down pole plate one (24-1) is located at clamped beam two (22) between signal wire (18) and anchor area one (23-1) Underface, drop-down pole plate two (24-2) be located at clamped beam two (22) between signal wire (18) and anchor area two (23-2) just under Side, two drop-down pole plates on signal wire (18) symmetrically, in drop-down pole plate one (24-1), drop-down pole plate two (24-2) and clamped One layer of Si is also covered with signal wire immediately below beam two (22)3N4Dielectric layer two (25-2), anchor area one (23-1) and anchor area two (23-2) forms CPW with ground wire, the clamped beam perseverance width device (4) of the excess energy collection of anchor area two (23-2) connection Autonomous test AC/DC modular converters one (17), the second end (18-2) and ground wire three (19-3), the ground wire four (19-4) of signal wire (18) are formed CPW, and it is used as output end；When microwave antenna receives the signal of super large, the clamped beam that the excess energy of Autonomous test is collected is permanent The microwave signal process of input into the signal output of fixed amplitude, is effectively protected rear class low-noise amplifier by width device (4) (5), improve the anti-of microwave receiver front end and burn level, in addition, the direct current that need not change rear class low-noise amplifier (5) is inclined Put a little so that the AGC modules of complexity are no longer needed in low-noise amplifier (5), improve the linear of low-noise amplifier (5) Degree, meanwhile, the energy being coupled out is collected by AC/DC modular converters (17), and stores in the battery.
- 3. the clamped beam receiver front end that internet of things oriented excess energy according to claim 1 and release model are collected, It is characterized in that the clamped beam frequency mixer of described oscillation signals leak collection of energy includes bandpass filter (11), AC/DC turns Change the mold block two (12), signal input port (14), mixed frequency signal output port (15) and mixing structure (16), wherein being mixed structure (16) it is three-port network；After signal input port (14) is connected with the input of bandpass filter (11), then with being mixed structure (16) input is connected, the output end connection AC/DC modular converters two (12) of bandpass filter (11), AC/DC modular converters Two (12) connection rechargeable battery (3), local oscillated signal input port (13) the connection local oscillator (7) of mixing structure (16) Output end, ultimately mixing structure (16) output port (15) output mixing after intermediate-freuqncy signal；In bandpass filter (11) Frequency of heart is identical with the frequency of local oscillated signal, the energy that will can be leaked by local oscillated signal by mixing structure (16) Absorb, solve the problems, such as the local oscillated signal self-mixing of leakage, and input signal belongs to the stopband of bandpass filter (11) Frequency domain, its frequency are in beyond the passband of bandpass filter (11), will not be directly entered mixing knot by bandpass filter (11) Structure (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697340.8A CN107395230A (en) | 2017-08-15 | 2017-08-15 | The clamped beam receiver front end that internet of things oriented excess energy and release model are collected |
Applications Claiming Priority (1)
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| CN2524433Y (en) * | 2002-02-06 | 2002-12-04 | 信息产业部电子第五十四研究所 | Multichannel radio signal transponder |
| CN101752676A (en) * | 2008-12-05 | 2010-06-23 | 沈阳铁路信号工厂 | Transponder duplex multifrequency community antenna |
| CN101915871A (en) * | 2010-07-12 | 2010-12-15 | 东南大学 | MEMS (Micro Electronic Mechanical System) clamped beam type online microwave power sensor and production method thereof |
| CN104254958A (en) * | 2012-02-09 | 2014-12-31 | 胡玛沃克斯公司 | Energy harvesting system |
| CN104771140A (en) * | 2015-03-13 | 2015-07-15 | 江苏物联网研究发展中心 | RFID-based self-powered intelligent sensor |
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| CN2524433Y (en) * | 2002-02-06 | 2002-12-04 | 信息产业部电子第五十四研究所 | Multichannel radio signal transponder |
| CN101752676A (en) * | 2008-12-05 | 2010-06-23 | 沈阳铁路信号工厂 | Transponder duplex multifrequency community antenna |
| CN101915871A (en) * | 2010-07-12 | 2010-12-15 | 东南大学 | MEMS (Micro Electronic Mechanical System) clamped beam type online microwave power sensor and production method thereof |
| CN104254958A (en) * | 2012-02-09 | 2014-12-31 | 胡玛沃克斯公司 | Energy harvesting system |
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