CN203039680U - W-band high-performance radio frequency receiving/transmitting assembly - Google Patents
W-band high-performance radio frequency receiving/transmitting assembly Download PDFInfo
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- CN203039680U CN203039680U CN201220656826XU CN201220656826U CN203039680U CN 203039680 U CN203039680 U CN 203039680U CN 201220656826X U CN201220656826X U CN 201220656826XU CN 201220656826 U CN201220656826 U CN 201220656826U CN 203039680 U CN203039680 U CN 203039680U
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Abstract
The utility model provides a W-band high-performance radio frequency receiving/transmitting assembly. The W-band high-performance radio frequency receiving/transmitting assembly includes a radio frequency receiving assembly and a radio frequency transmitting assembly, wherein the radio frequency transmitting assembly comprises a temperature compensation-type quartz crystal resonator, a phase-locked loop which is in circuit connection with an output end of the temperature compensation-type quartz crystal resonator, a first multiplier which is in circuit connection with an output end of the phase-locked loop, a second multiplier which is in circuit connection with an output end of the first multiplier, an active-biasing controller which is in circuit connection with an output end of the second multiplier, and a transmitting antenna which is in circuit connection with an output end of the active-biasing controller and is used for transmitting W-band wireless signals. The W-band high-performance radio frequency receiving/transmitting assembly of the utility model has the advantages of simple circuit, lower requirement for the performance of a voltage controlled oscillator VCO, convenient debugging as well as low cost and strong versatility and in engineering; the W-band high-performance radio frequency receiving/transmitting assembly of the utility model can flexibly generate different kinds of signal waveform; and the W-band high-performance radio frequency receiving/transmitting assembly is a frequency modulation continuous wave signal generating device which has great potential and superiority.
Description
Technical field
The utility model relates to a kind of assembly for radar-probing system, is specifically related to a kind of W wave band high-performance transmitting-receiving radio frequency component.
Background technology
For radar-probing system, the performance of radio-frequency receiving-transmitting assembly has determined the detectivity of radar complete machine equally.At present, domestic 8mm radio frequency component designed capacity and technological level be comparative maturity, but be in the design tackling key problem stage for 3mm frequency range transmitting-receiving subassembly, along with increasing input of domestic top microwave radio assembly research and development unit, and the following instrument of Agilent 500GHz is lifted a ban production domesticization expectation realization in following 1～2 year of W waveband radio frequency assembly to the continent.
If adopt the mode of traditional VCO to develop FM source, the transmit scattering of system is relatively poor, and parasitic amplitude modulation is difficult to eliminate.If adopt the mode of DDS+ up-conversion, not only with high costs, and the big power consumption of volume is also higher, and be not suitable for the vehicle anti-collision radar use.
The utility model content
The utility model provides a kind of W wave band high-performance transmitting-receiving radio frequency component, and circuit is succinct, low cost, highly versatile.
For achieving the above object, the utility model provides a kind of W wave band high-performance transmitting-receiving radio frequency component, and it comprises radio frequency receiving unit and radio frequency sending assembly; Be characterized in that above-mentioned radio frequency sending assembly comprises:
The temperature compensating type quartz-crystal resonator;
The phase-locked loop that is connected with said temperature offset-type quartz-crystal resonator circuit of output terminal;
First multiplier that is connected with above-mentioned phase-locked loop circuit of output terminal;
Second multiplier that is connected with the above-mentioned first multiplier circuit of output terminal;
The active biased controller that is connected with the above-mentioned second multiplier circuit of output terminal;
With the transmitting antenna that above-mentioned active biased controller output end circuit is connected, transmitting antenna is used for sending W wave band wireless signal.
Above-mentioned phase-locked loop comprises:
Reference frequency source;
The phase discriminator that is connected with above-mentioned reference frequency source circuit of output terminal;
The loop filter that is connected with above-mentioned phase discriminator circuit of output terminal;
With the voltage controlled oscillator that above-mentioned loop filter circuit of output terminal is connected, voltage controlled oscillator output signal to the first multiplier; And,
Program divider, above-mentioned voltage controlled oscillator is connected to phase discriminator by the program divider circuit.
The first above-mentioned multiplier adopts effectively * 2 frequency multipliers.
The second above-mentioned multiplier adopts passive * 3 frequency multipliers.
Above-mentioned radio frequency receiving unit comprises:
Reception antenna is used for receiving W wave band wireless signal;
The low noise amplifier that is connected with above-mentioned reception antenna circuit of output terminal;
The frequency mixer that is connected with above-mentioned low noise amplifier circuit of output terminal;
The high linear gain module that is connected with above-mentioned mixer output circuit.
The W wave band high-performance transmitting-receiving radio frequency component of the W wave band high-performance transmitting-receiving radio frequency component of the disclosed a kind of existing FM source based on phase-locked loop of the utility model and prior art is compared, its advantage is, the utility model circuit is succinct, lower to the voltage controlled oscillator VCO performance requirement, debugging is convenient, and can produce various signal waveform flexibly, thereby have advantages such as low cost, highly versatile in engineering, be a kind of Continuous Wave with frequency modulation signal generating apparatus that has potentiality and advantage thus.
Description of drawings
Fig. 1 is the circuit block diagram of the radio frequency receiving unit of the utility model W wave band high-performance transmitting-receiving radio frequency component;
Fig. 2 is the circuit block diagram of the radio frequency sending assembly of the utility model W wave band high-performance transmitting-receiving radio frequency component;
Fig. 3 is the circuit block diagram of the phase-locked loop of the utility model W wave band high-performance transmitting-receiving radio frequency component;
Fig. 4 is the PFD idealized characteristic of the phase discriminator of the utility model W wave band high-performance transmitting-receiving radio frequency component.
Embodiment
Below in conjunction with accompanying drawing, further specify specific embodiment of the utility model.
The utility model discloses the embodiment of a kind of W wave band high-performance transmitting-receiving radio frequency component, the 77GHZ microwave transmitting and receiving assembly in a kind of linear frequency modulation source based on phase-locked loop of explanation in the present embodiment, and this microwave transmitting and receiving assembly comprises radio frequency receiving unit and radio frequency sending assembly.
As shown in Figure 1, the radio frequency receiving unit comprises: the reception antenna 24 that is used for receiving W wave band wireless signal, the low noise amplifier 23 that is connected with reception antenna 24 circuit of output terminal, the frequency mixer 22 that is connected with low noise amplifier 23 circuit of output terminal, the high linear gain module 21 that is connected with frequency mixer 22 circuit of output terminal.Wherein low noise amplifier 23 adopts the HMC-ALH508 chip.Frequency mixer 22 adopts the HMC-MDB277 chip, and accepts the LO signal of one road 77GHZ.High linear gain module 21 adopts HMC580ST89.
As shown in Figure 2, the radio frequency sending assembly comprises: temperature compensating type quartz-crystal resonator 11(TCXO), the phase-locked loop 12 that is connected with temperature compensating type quartz-crystal resonator 11 circuit of output terminal, first multiplier 13 that is connected with phase-locked loop 12 circuit of output terminal, second multiplier 14 that is connected with first multiplier, 13 circuit of output terminal, the active biased controller 15 that is connected with second multiplier, 14 circuit of output terminal, with the transmitting antenna 16 that active biased controller 15 circuit of output terminal are connected, transmitting antenna 16 is used for sending W wave band wireless signal.
Wherein, active biased controller 15 adopts the HMC-AUH320 chip.First multiplier 13 adopts effectively * 2 frequency multiplier HMC576LC3B chips.Second multiplier 14 adopts passive * 3 frequency multiplier HMC-XTB110 chips.
As shown in Figure 3, phase-locked loop 12 comprises: reference frequency source 121, the phase discriminator 122 that is connected with reference frequency source 121 circuit of output terminal, the loop filter (LPF) 123 that is connected with phase discriminator (PD) 122 circuit of output terminal, the voltage controlled oscillator (VCO) 124 that is connected with loop filter 123 circuit of output terminal, and program divider (/M) 125, voltage controlled oscillator 124 is connected to phase discriminator 122 by program divider 125 circuit.Voltage controlled oscillator 124 is used for outputing signal to first multiplier 13.
This phase-locked loop 12 is phase place degeneration factors, and this is different from common voltage or Current Negative Three-Point Capacitance system.Phase discriminator 122 always compares the phase place of reference signal of input and the phase place of feedback signal, when two phase differences keep constant or are zero the type decided of phase discriminator (specifically by), loop enters stable state, the expression phase place locks, at this moment the output signal frequency frequency that equals input signal multiply by frequency dividing ratio M, namely
, wherein
Reference frequency for 121 outputs of phase-locked loop reference frequency source; Otherwise phase discriminator 122 is proceeded the phase bit comparison, exports a signal
Become direct current signal through loop filter 123 low-pass filtering
, the output signal frequency of control voltage controlled oscillator 124 approaches toward the direction of reference frequency, up to locking.
Phase discriminator (Phase Detector) the 122nd, an important module in the phase-locked loop.Its main function is the phase difference (being difference on the frequency sometimes) that detects between input reference signal and the voltage controlled oscillator output signal, and produces and the proportional output signal of this phase difference (or difference on the frequency).The performance of phase discriminator is determining the precision of phase-locked loop, and its stability is also had certain influence.Its linear model is:
Wherein
Be the gain of phase discriminator,
Be that voltage controlled oscillator is through the output signal of frequency divider and the phase error between the PLL input reference signal.The condition that the linear model that following formula is expressed is set up is phase error
Enough little, namely will be in the range of linearity of phase discriminator.
Operation principle and the differential amplifier of PFD are similar, and the both is the difference that detects two input signals, and produce the output signal that is directly proportional with it.As shown in Figure 4, in the phase demodulation scope, the average output of PFD
With two inputs
With
Between the linear direct ratio of phase difference, suc as formula (3), wherein K is the gain of PFD.
Voltage controlled oscillator (VCO, Voltage Controlled Oscillator) the 124th, the core cell among the PLL, also be the highest unit of operating frequency simultaneously, it changes output signal frequency by the direct current tuning voltage that changes input, and the output frequency expression formula of VCO is as follows:
Wherein,
Be the free oscillation frequency of VCO,
Be the control voltage of VCO input.
Be its voltage controlled gain, it refers under the unit voltage, and the variable quantity of VCO output frequency, typical flat are [Hz/V].Ideally, requiring voltage controlled gain is constant, and namely input voltage and output frequency should keep good linear relationship, and in the design of actual PLL frequency synthesizer,
Be difficult to constant.
When loop was in the lock state, output frequency was identical with incoming frequency, existed a stable state to differ between the two.If input signal generation phase place or frequency change (being caused by disturbing or modulating institute), by the control action of loop self, the output signal of loop, namely VCO frequency and phase place will be followed the tracks of the variation of input signal, and this namely is the tracking characteristics of loop.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be apparent.Therefore, protection range of the present utility model should be limited to the appended claims.
Claims (5)
1. a W wave band high-performance is received and dispatched radio frequency component, and it comprises radio frequency receiving unit and radio frequency sending assembly; It is characterized in that described radio frequency sending assembly comprises:
Temperature compensating type quartz-crystal resonator (11);
The phase-locked loop (12) that is connected with described temperature compensating type quartz-crystal resonator (11) circuit of output terminal;
First multiplier (13) that is connected with described phase-locked loop (12) circuit of output terminal;
Second multiplier (14) that is connected with described first multiplier (13) circuit of output terminal;
The active biased controller (15) that is connected with described second multiplier (14) circuit of output terminal;
With the transmitting antenna (16) that described active biased controller (15) circuit of output terminal is connected, transmitting antenna (16) is used for sending W wave band wireless signal.
2. W wave band high-performance as claimed in claim 1 is received and dispatched radio frequency component, it is characterized in that described phase-locked loop (12) comprises:
Reference frequency source (121);
The phase discriminator (122) that is connected with described reference frequency source (121) circuit of output terminal;
The loop filter (123) that is connected with described phase discriminator (122) circuit of output terminal;
With the voltage controlled oscillator (124) that described loop filter (123) circuit of output terminal is connected, voltage controlled oscillator (124) outputs signal to first multiplier (13); And,
Program divider (125), described voltage controlled oscillator (124) is connected to phase discriminator (122) by program divider (125) circuit.
3. W wave band high-performance transmitting-receiving radio frequency component as claimed in claim 1 is characterized in that described first multiplier (13) adopts effectively * 2 frequency multipliers.
4. W wave band high-performance transmitting-receiving radio frequency component as claimed in claim 1 is characterized in that described second multiplier (14) adopts passive * 3 frequency multipliers.
5. W wave band high-performance as claimed in claim 1 is received and dispatched radio frequency component, it is characterized in that described radio frequency receiving unit comprises:
Reception antenna (24) is used for receiving W wave band wireless signal;
The low noise amplifier (23) that is connected with described reception antenna (24) circuit of output terminal;
The frequency mixer (22) that is connected with described low noise amplifier (23) circuit of output terminal;
The high linear gain module (21) that is connected with described frequency mixer (22) circuit of output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220656826XU CN203039680U (en) | 2012-12-04 | 2012-12-04 | W-band high-performance radio frequency receiving/transmitting assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220656826XU CN203039680U (en) | 2012-12-04 | 2012-12-04 | W-band high-performance radio frequency receiving/transmitting assembly |
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| CN203039680U true CN203039680U (en) | 2013-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555722A (en) * | 2020-05-08 | 2020-08-18 | 展讯通信（上海）有限公司 | Terminal, radio frequency equipment and temperature compensation method thereof |
-
2012
- 2012-12-04 CN CN201220656826XU patent/CN203039680U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555722A (en) * | 2020-05-08 | 2020-08-18 | 展讯通信（上海）有限公司 | Terminal, radio frequency equipment and temperature compensation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SHENTIAN INDUSTRIAL COMPANY Free format text: FORMER OWNER: SHANGHAI RADIO APPARATUS INST. Effective date: 20140516 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200090 YANGPU, SHANGHAI TO: 200438 YANGPU, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140516 Address after: 200438 Shanghai, Beijing Road, Yangpu District, No. 846 Patentee after: Shanghai God Tim Industrial Co. Address before: 200090 No. 203, Liping Road, Shanghai, Yangpu District -- Archives Information Office of Shanghai Space Bureau Patentee before: SHANGHAI RADIO EQUIPMENT Research Institute |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200438 Shanghai, Beijing Road, Yangpu District, No. 846 Patentee after: SHANGHAI SHENTIAN INDUSTRIAL CO.,LTD. Address before: 200438 Shanghai, Beijing Road, Yangpu District, No. 846 Patentee before: Shanghai God Tim Industrial Co. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |