CN103647575A - 2-12GHz broadband microwave front-end circuit and 2-12GHz microwave signal receiving method - Google Patents
2-12GHz broadband microwave front-end circuit and 2-12GHz microwave signal receiving method Download PDFInfo
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Abstract
The invention provides a 2-12GHz broadband microwave front-end circuit and a 2-12GHz microwave signal receiving method. The front-end circuit comprises a channel module and a local oscillator module. The local oscillator module is connected with the channel module and provides local oscillator signals for the channel module. The channel module comprises an amplitude limiting module, a low-noise amplification module, a switch filtering module, a primary frequency mixing module, a filtering amplification module, a secondary frequency mixing module and a medium frequency filtering amplification module. The local oscillator module comprises a crystal oscillator circuit module, a first local oscillator module, a second local oscillator module and a clock module. The first local oscillator module, the second local oscillator module and the clock module are respectively connected with the crystal oscillator circuit module, the crystal oscillator circuit module amplifies crystal oscillator signals output by a crystal oscillator and divides the crystal oscillator signals into three ways, and the crystal oscillator signals are respectively output to the first local oscillator module, the second local oscillator module and the clock module to serve as reference signals. The first local oscillator module is connected with the primary frequency mixing module and provides local oscillator signals for the primary frequency mixing module; and the second local oscillator module is connected with the secondary frequency mixing module and provides local oscillator signals for the secondary frequency mixing module.
Description
Technical field
The present invention relates to technical field of micro communication, especially microwave transmitting and receiving circuit field, is specifically related to a kind of 2～12GHz wide-band microwave front-end circuit and 2～12GHz microwave signal method of reseptance.
Background technology
In recent years, along with the development of microwave integrated circuit technology and micro-packaging technology, electronic system is mainly considered miniaturization, modularization, standardization in design, to meet product high-performance, highly reliable, large capacity, requirement that little Bao is light.Especially airborne harsh especially to the requirement of equipment size, weight with Space-borne.Therefore require that microwave receiving front end is little, lightweight to broadband, volume, high-performance, miniaturization development.The present invention furthers investigate mainly for certain high accuracy quick location technique miniaturization microwave receiving front end, adopt micro-packaging technology and integrated chip technology to realize microwave receiving front end Miniaturization Design, effectively reduced the volume of system and alleviated weight of equipment, having met actual requirement of engineering.
The design of traditional microwave front end adopts single parts integration mode substantially, and this method is that some microwave portions, assembly are formed and have certain function receiving front-end with cable on-link mode (OLM).Advantages such as this implementation has that performance index are better, Installation and Debugging are convenient, but whole microwave front end volume is larger, equipment is compared with weight, and only applicable vehicle-mounted, laboratory equal-volume, the less demanding platform of weight, has certain limitation.And at unmanned plane, the platform such as spaceborne, volume, weight are required comparatively harshly, and microwave front end will adopt micro-packaging technology and integrated chip technology, realizes the miniaturization of system, and volume, weight are compared and are had obvious advantage with parts integration mode.
Summary of the invention
The defect or the deficiency that for prior art, exist, object of the present invention aims to provide a kind of 2～12GHz wide-band microwave front-end circuit and 2～12GHz microwave signal method of reseptance, utilize 2～12GHz wide-band microwave front-end circuit of the present invention and 2～12GHz microwave signal method of reseptance, applicable to detection equipment, equipment all has larger performance boost in volume, weight, power consumption, meets the demand to the stable transmitting-receiving of equipment volume, weight and high-performance.
For achieving the above object, the technical solution adopted in the present invention is as follows:
2～12GHz wide-band microwave front-end circuit, comprises channel module and local oscillator module, and local oscillator module is connected with channel module, for it provides local oscillation signal, wherein:
Described channel module comprises amplitude limit module, low noise amplification module, switch filtering module, first order frequency mixing module, filter and amplification module, second level frequency mixing module and intermediate frequency filtering amplification module, wherein: amplitude limit module is for receiving 2～12GHz input signal of being intercepted and captured by an antenna and carrying out amplitude limiting processing and output; The input of low noise amplification module is connected to the output of amplitude limit module, for providing signal to amplify, processes; The input of switch filtering module is connected with the output of low noise amplification module, for choosing the frequency band signals matching with this switch filtering module median filter; The radio-frequency head of first order frequency mixing module is connected to the output of switch filtering module, its local oscillator input receives the first local oscillation signal from described local oscillator module input, and this first order frequency mixing module is for obtaining an intermediate-freuqncy signal by the signal conversion of being inputted by its radio-frequency head; The input of filter and amplification module is connected with the output of first order frequency mixing module, the intermediate-freuqncy signal of described first order frequency mixing module output is carried out filtering and is amplified and process, and output signal to second level frequency mixing module; The radio-frequency head of second level frequency mixing module is connected to the output of filter and amplification module, its local oscillator input receives the second local oscillation signal from described local oscillator module input, and this second level frequency mixing module is for obtaining the signal conversion of being inputted by its radio-frequency head the intermediate-freuqncy signal of 340 ± 25MHz and 400 ± 350MHz; The input of intermediate frequency filtering amplification module is connected to the output of described second level frequency mixing module, after the intermediate-freuqncy signal of second level frequency mixing module output 340 ± 25MHz and 400 ± 350MHz being carried out to intermediate frequency filtering and amplifying processing, exports signal processor to;
Described local oscillator module comprises crystal oscillating circuit module, the first local oscillator module, the second local oscillator module, clock module, the first local oscillator module, the second local oscillator module, clock module are connected with crystal oscillating circuit module respectively, crystal oscillating circuit module is amplified rear merit by the 100MHz signal of crystal oscillator output and is divided into three tunnels, output to respectively the first local oscillator module, the second local oscillator module and clock module, as the reference signal of the first local oscillator module, the second local oscillator module and clock module; The first local oscillator module is connected with the first order frequency mixing module of described channel module, for this first order frequency mixing module provides local oscillation signal; The second local oscillator module is connected with second level frequency mixing module, for this second level frequency mixing module provides local oscillation signal.
Further, in execution mode, described the first local oscillator module produces the first local oscillation signal that frequency is 10～15GHz, and it is the second local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz that described the second local oscillator module produces frequency
Further in execution mode, between described amplitude limit module, low noise amplification module, switch filtering module, first order frequency mixing module, filter and amplification module, second level frequency mixing module and the intermediate frequency filtering amplification module connecting successively, all by circuit board 50 Ω lines, connect, described the first local oscillator module, the second local oscillator module, clock module are connected with crystal oscillating circuit module by circuit board 50 Ω lines respectively.
Further, in execution mode, described switch filtering module is comprised of two hilted broadsword five throw switches and five filters, and described five filters are connected between two hilted broadsword five throw switches and form five bypass passages, input signal is received to frequency range and be divided into five sections.
Further in execution mode, described filter and amplification module is comprised of a second switch filtration module and amplifier, the input of second switch filtration module is connected with the output of described first order frequency mixing module, the input of amplifier is connected with the output of second switch filtration module and its output is connected with the radio-frequency head of second level frequency mixing module, wherein, second switch filtration module is comprised of two hilted broadsword four throw switches and four filters, and four filters are connected between two hilted broadsword four throw switches and form four bypass passages.
Further in execution mode, intermediate frequency filtering amplification module is by a 3rd switch filtering module, the second amplifier and the 4th switch filtering module form, the input of the 3rd switch filtering module is connected to the output of described second level frequency mixing module, the input of the second amplifier is connected to the output of the 3rd switch filtering module, the input of the 4th switch filtering module is connected to the output of the second amplifier, wherein, the 3rd switch filtering module and the 4th switch filtering module form by two single-pole double-throw switch (SPDT)s and two filters, two filters are connected to and between two single-pole double-throw switch (SPDT)s, form two bypass passages.
Further in execution mode, described amplitude limit module, low noise amplification module, switch filtering module, filter and amplification module, second level frequency mixing module and intermediate frequency filtering amplification module are all selected chip device, and described first order frequency mixing module, crystal oscillating circuit module, the first local oscillator module, the second local oscillator module and clock module are all used surface mount device.
According to improvement of the present invention, a kind of 2～12GHz microwave signal method of reseptance that utilizes above-mentioned 2～12GHz wide-band microwave front-end circuit to realize is also proposed, the method comprises the following steps:
2～12GHz input signal that step 1, reception one antenna are intercepted and captured, and it is carried out to amplitude limiting processing;
Step 4, the signal that utilizes one first local oscillation signal to select step 3 carry out Frequency mixing processing, obtain the first intermediate-freuqncy signal;
Step 6, the intermediate-freuqncy signal of utilizing one second local oscillation signal to obtain step 5 are carried out Frequency mixing processing, obtain the second intermediate-freuqncy signal;
Step 7, the second intermediate-freuqncy signal that step 6 is obtained are carried out intermediate frequency filtering and are amplified and process; And
Further in execution mode, in described method, the first local oscillation signal be frequency range at the local oscillation signal of 10～15GHz, the second local oscillation signal is that frequency is the local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz.
From the above technical solution of the present invention shows that, compared with prior art, remarkable advantage of the present invention is: 1) between each functional module, major part is to be connected by 50 Ω lines, and noise factor and intermediate frequency output flatness index obviously improve; 2) volume is less, weight is lighter, power consumption is lower; 3) meeting that volume is less, weight is lighter, under the lower prerequisite of power consumption, can realize high performance stable transmitting-receiving microwave signal.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of an embodiment of the present invention 2～12GHz wide-band microwave front-end circuit.
Fig. 2 is an exemplary circuit configuration figure of channel module in Fig. 1 execution mode.
Fig. 3 is an exemplary circuit configuration figure of local oscillator module in Fig. 1 execution mode.
Fig. 4 is the realization flow schematic diagram of an embodiment of the present invention 2～12GHz microwave signal method of reseptance.
Embodiment
In order more to understand technology contents of the present invention, especially exemplified by specific embodiment and coordinate appended graphic being described as follows.
Below in conjunction with appended diagram and embodiment, describe enforcement of the present invention in detail.
Fig. 1 is the circuit structure of an embodiment of the present invention 2～12GHz wide-band microwave front-end circuit, and wherein, a kind of 2～12GHz wide-band microwave front-end circuit, comprises channel module and local oscillator module, and local oscillator module is connected with channel module, for it provides local oscillation signal.
Shown in Fig. 2, channel module comprises amplitude limit module 1, low noise amplification module 2, switch filtering module 3, first order frequency mixing module 4, filter and amplification module 5, second level frequency mixing module 6 and intermediate frequency filtering amplification module 7.
The input of low noise amplification module 2 is connected to the output of amplitude limit module 1, for providing signal to amplify, processes.
The input of switch filtering module 3 is connected with the output of low noise amplification module 2, for choosing the frequency band signals matching with these switch filtering module 3 median filters.
As shown in Figure 2, as preferred embodiment, described switch filtering module 3 is comprised of two hilted broadsword five throw switches (SP5T) and five filters, and described five filters are connected between two hilted broadsword five throw switches and form five bypass passages, input signal is received to frequency range and be divided into five sections.By switching over, make signal by the filter of this frequency range, enter the radio-frequency head of first order frequency mixer 4.
The radio-frequency head of first order frequency mixing module 4 is connected to the output of switch filtering module 3, its local oscillator input receives the first local oscillation signal from described local oscillator module input, and this first order frequency mixing module 4 is for obtaining an intermediate-freuqncy signal by the signal conversion of being inputted by its radio-frequency head.Wherein:
When input signal is 2～7GHz, the first local oscillation signal is input as 10～15GHz, and intermediate-freuqncy signal is output as 8GHz ± 25MHz or 8GHz ± 350MHz.
When input signal is 7～12GHz, the first local oscillation signal is input as 10～15GHz, and intermediate frequency output signal is 3GHz ± 25MHz or 3GHz ± 350MHz.
The input of filter and amplification module 5 is connected with the output of first order frequency mixing module 4, the intermediate-freuqncy signal of described first order frequency mixing module 4 outputs is carried out filtering and is amplified and process, and output signal to second level frequency mixing module 6.
As shown in Figure 2, as preferred embodiment, described filter and amplification module 5 is comprised of a second switch filtration module 5a and amplifier 5b, the input of second switch filtration module 5a is connected with the output of described first order frequency mixing module 4, the input of amplifier 5b is connected with the output of second switch filtration module 5a and its output is connected with the radio-frequency head of second level frequency mixing module 6, wherein, second switch filtration module 5a is comprised of two hilted broadsword four throw switches (SP4T) and four filters, four filters are connected between two hilted broadsword four throw switches and form four bypass passages.By switching over, make signal by the filter of this frequency range, enter the radio-frequency head of second level frequency mixer 6.
The radio-frequency head of second level frequency mixing module 6 is connected to the output of filter and amplification module 5, its local oscillator input receives the second local oscillation signal from described local oscillator module input, and this second level frequency mixing module 6 is for obtaining the signal conversion of being inputted by its radio-frequency head the intermediate-freuqncy signal of 340 ± 25MHz and 400 ± 350MHz.Wherein:
When the second local oscillation signal input 7.66GHz or 3.34GHz, output intermediate-freuqncy signal is 340 ± 25MHz.
When the second local oscillation signal input 7.6GHz or 3.4GHz, output intermediate-freuqncy signal is 400 ± 350MHz.
As shown in Figure 2, the input of intermediate frequency filtering amplification module 7 is connected to the output of described second level frequency mixing module 6, after the intermediate-freuqncy signal of second level frequency mixing module 6 output 340 ± 25MHz and 400 ± 350MHz being carried out to intermediate frequency filtering and amplifying processing, exports signal processor to.
As shown in Figure 2, as preferred embodiment, intermediate frequency filtering amplification module 7 is by a 3rd switch filtering module 7a, the second amplifier 7b and the 4th switch filtering module 7c form, the input of the 3rd switch filtering module 7a is connected to the output of described second level frequency mixing module 6, the input of the second amplifier 7b is connected to the output of the 3rd switch filtering module 7a, the input of the 4th switch filtering module 7c is connected to the output of the second amplifier 7b, wherein, the 3rd switch filtering module 7a and the 4th switch filtering module 7c form by two single-pole double-throw switch (SPDT)s (SP2T) and two filters, two filters are connected to and between two single-pole double-throw switch (SPDT)s, form two bypass passages.By switching over, make signal export signal processor to by the filter of this frequency range.
Fig. 3 is an exemplary circuit configuration figure of local oscillator module in Fig. 1 execution mode, wherein, local oscillator module comprises crystal oscillating circuit module 8, the first local oscillator module 9, the second local oscillator module 10, clock module 11, the first local oscillator module 9, the second local oscillator module 10, clock module 11 is connected with crystal oscillating circuit module 8 respectively, crystal oscillating circuit module 8 is amplified rear merit by the 100MHz signal of crystal oscillator output and is divided into three tunnels, output to respectively the first local oscillator module 9, the second local oscillator module 10 and clock module 11, as the first local oscillator module 9, the reference signal of the second local oscillator module 10 and clock module 11.The first local oscillator module 9 is connected with the first order frequency mixing module 4 of described channel module, for this first order frequency mixing module provides local oscillation signal; The second local oscillator module 10 is connected with second level frequency mixing module 6, for this second level frequency mixing module 6 provides local oscillation signal.
Described the first local oscillator module 9 produces the first local oscillation signal that frequency is 10～15GHz, and it is the second local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz that described the second local oscillator module 10 produces frequency.
Particularly, as shown in Figure 3, crystal oscillating circuit module 8 is amplified rear merit by the 100MHz signal of crystal oscillator output and is divided into three tunnels, outputs to respectively the first local oscillator module 9, the second local oscillator module 10, clock module 11 conducts with reference to signal.
The first local oscillator module 9 produces the local oscillation signal that frequency is 10～15GHz, physical circuit is to adopt phase-lock mode, select from ADF4106 phase discriminator chip, the signal of VCO coupling passes through respectively ADF4106 chip internal Fractional-N frequency device and the laggard line phase comparison of R frequency divider with the signal with reference to crystal oscillator output, the phase error voltage producing is controlled the tuning end Vt of VCO after loop filtering amplifies, by serial code, control N again, R frequency divider, during locking, get final product the signal of 5～7.5GHz of stable output, 5～7.5GHz is carried out to 2 frequencys multiplication, through switch filtering, after amplifying, obtain the signal of 10～15GHz.
The second local oscillator module 10 is that generation frequency is the local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz.Physical circuit is also to adopt phase-lock mode, the signal of phase locked source output 3.83GHz, 3.8GHz, 3.34GHz and tetra-points of 3.4GHz, 3.83GHz and 3.8GHz signal obtain 7.66GHz and 7.6GHz signal after carrying out after 2 frequencys multiplication after filtering, amplifying, and 3.34GHz and 3.4GHz signal are directly exported through switching gate.
As preferred embodiment, between described amplitude limit module 1, low noise amplification module 2, switch filtering module 3, first order frequency mixing module 4, filter and amplification module 5, second level frequency mixing module 6 and the intermediate frequency filtering amplification module 7 connecting successively, all by circuit board 50 Ω lines, connect, described the first local oscillator module 9, the second local oscillator module 10, clock module 11 are connected with crystal oscillating circuit module 8 by circuit board 50 Ω lines respectively.
For realizing the designing requirement of miniaturization and high reliability, in the present embodiment, described amplitude limit module 1, low noise amplification module 2, switch filtering module 3, filter and amplification module 5, second level frequency mixing module 6 and intermediate frequency filtering amplification module 7 are all selected chip device, described first order frequency mixing module 4, crystal oscillating circuit module 8, a local oscillator module 9, two local oscillator modules 10 and clock module 11 are all used surface mount device, and the 2～12GHz wide-band microwave front-end circuit being therefore assembled into has the advantages such as high sensitivity, volume are little, lightweight, high-performance.
As preferred embodiment, in the embodiment shown in Fig. 2, amplitude limit module 1 adopts NC1803C-218 chip; Low noise amplifier 2 adopts CHA3218-99F and two amplifier cascades of FM3058 to form, and each the SP5T switch in switch filtering module 5 is comprised of HMC641 switch and HMC347 switch, and filter is wherein selected MEMS filter; First order frequency mixer 4 adopts M2H-0220LE filter; Each SP4T in filter and amplification module 5 is comprised of 2 HMC641 switches, and amplifier 5b adopts HMC462 amplifier; Second level frequency mixer 6 adopts NC1708C-308 chip; In intermediate frequency filtering amplification module 7, SP2T adopts HMC347 switch, and filter is LC filter 2FL750/B340-50, and the second amplifier 7b adopts MAAM02350 amplifier.
As preferred embodiment, in the embodiment shown in Fig. 3, the 100MHz crystal resonator in crystal oscillating circuit module 8 adopts PFTC13-0008 crystal oscillator, and amplifier adopts H1C51188A amplifier, and power splitter adopts ADP-2-20 power splitter.
In the first local oscillator module 9, VCO adopts HMC587LP4 voltage controlled oscillator, and the model that phase discriminator adopts is ADF4108BCPZ, and the model that frequency multiplier adopts is AMMC-6120, and filter is MEMS filter, and SP3T switch is wherein HMC641 switch.
In the second local oscillator module 10, VCO adopts HEV0360N voltage controlled oscillator, and the model that phase discriminator adopts is ADF4106BRU, the model that frequency multiplier adopts is AMMC-6120, filter BWLF-3.5, SP2T switch is wherein HMC637 switch, last amplifier is HMC462.
In clock module 11, frequency divider adopts HMC361S8G, and two amplifiers are respectively NBB500, NBB300, and filter is LC filter.
The realization flow that Figure 4 shows that the 2～12GHz microwave signal method of reseptance that utilizes above-mentioned 2～12GHz wide-band microwave front-end circuit realization, wherein, 2～12GHz microwave signal method of reseptance comprises the following steps:
2～12GHz input signal that step 1, reception one antenna are intercepted and captured, and it is carried out to amplitude limiting processing;
Step 4, the signal that utilizes one first local oscillation signal to select step 3 carry out Frequency mixing processing, obtain the first intermediate-freuqncy signal;
Step 6, the intermediate-freuqncy signal of utilizing one second local oscillation signal to obtain step 5 are carried out Frequency mixing processing, obtain the second intermediate-freuqncy signal;
Step 7, the second intermediate-freuqncy signal that step 6 is obtained are carried out intermediate frequency filtering and are amplified and process; And
In described method, the first local oscillation signal be frequency range at the local oscillation signal of 10～15GHz, the second local oscillation signal is that frequency is the local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz.
The signal that above-mentioned steps 1-step 8 is carried out is processed, and is illustrated as shown in Figure 1-Figure 3.
In sum, 2～12GHz wide-band microwave front-end circuit provided by the invention and 2～12GHz microwave signal method of reseptance, on the detection equipment carrying applicable to kinds of platform, its platform device all has larger performance boost in volume, weight, power consumption, meets the demand to the stable transmitting-receiving of equipment volume, weight and high-performance.
Although the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on claims person of defining.
Claims (9)
1. 2～12GHz wide-band microwave front-end circuit, is characterized in that, comprises channel module and local oscillator module, and local oscillator module is connected with channel module, for it provides local oscillation signal, wherein:
Described channel module comprises amplitude limit module (1), low noise amplification module (2), switch filtering module (3), first order frequency mixing module (4), filter and amplification module (5), second level frequency mixing module (6) and intermediate frequency filtering amplification module (7), wherein: amplitude limit module (1) is for receiving 2～12GHz input signal of being intercepted and captured by an antenna and carrying out amplitude limiting processing and output; The input of low noise amplification module (2) is connected to the output of amplitude limit module (1), for providing signal to amplify, processes; The input of switch filtering module (3) is connected with the output of low noise amplification module (2), for choosing the frequency band signals matching with this switch filtering module (3) median filter; The radio-frequency head of first order frequency mixing module (4) is connected to the output of switch filtering module (3), its local oscillator input receives the first local oscillation signal from described local oscillator module input, and this first order frequency mixing module (4) is for obtaining an intermediate-freuqncy signal by the signal conversion of being inputted by its radio-frequency head; The input of filter and amplification module (5) is connected with the output of first order frequency mixing module (4), the intermediate-freuqncy signal of described first order frequency mixing module (4) output is carried out filtering and is amplified and process, and output signal to second level frequency mixing module (6); The radio-frequency head of second level frequency mixing module (6) is connected to the output of filter and amplification module (5), its local oscillator input receives the second local oscillation signal from described local oscillator module input, and this second level frequency mixing module (6) is for obtaining the signal conversion of being inputted by its radio-frequency head the intermediate-freuqncy signal of 340 ± 25MHz and 400 ± 350MHz; The input of intermediate frequency filtering amplification module (7) is connected to the output of described second level frequency mixing module (6), after the intermediate-freuqncy signal of second level frequency mixing module (6) output 340 ± 25MHz and 400 ± 350MHz being carried out to intermediate frequency filtering and amplifying processing, exports signal processor to;
Described local oscillator module comprises crystal oscillating circuit module (8), the first local oscillator module (9), the second local oscillator module (10), clock module (11), the first local oscillator module (9), the second local oscillator module (10), clock module (11) is connected with crystal oscillating circuit module (8) respectively, crystal oscillating circuit module (8) is amplified rear merit by the 100MHz signal of crystal oscillator output and is divided into three tunnels, output to respectively the first local oscillator module (9), the second local oscillator module (10) and clock module (11), as the first local oscillator module (9), the reference signal of the second local oscillator module (10) and clock module (11), the first local oscillator module (9) is connected with the first order frequency mixing module (4) of described channel module, for this first order frequency mixing module provides local oscillation signal, the second local oscillator module (10) is connected with second level frequency mixing module (6), for this second level frequency mixing module (6) provides local oscillation signal.
2. 2～12GHz wide-band microwave front-end circuit according to claim 1, it is characterized in that, described the first local oscillator module (9) produces the first local oscillation signal that frequency is 10～15GHz, and it is the second local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz that described the second local oscillator module (10) produces frequency.
3. 2～12GHz wide-band microwave front-end circuit according to claim 1, it is characterized in that, between described amplitude limit module (1), low noise amplification module (2), switch filtering module (3), first order frequency mixing module (4), filter and amplification module (5), second level frequency mixing module (6) and the intermediate frequency filtering amplification module (7) connecting successively, all by circuit board 50 Ω lines, connect, described the first local oscillator module (9), the second local oscillator module (10), clock module (11) are connected with crystal oscillating circuit module (8) by circuit board 50 Ω lines respectively.
4. 2～12GHz wide-band microwave front-end circuit according to claim 1, it is characterized in that, described switch filtering module (3) is comprised of two hilted broadsword five throw switches and five filters, described five filters are connected between two hilted broadsword five throw switches and form five bypass passages, input signal is received to frequency range and be divided into five sections.
5. 2～12GHz wide-band microwave front-end circuit according to claim 1, it is characterized in that, described filter and amplification module (5) is comprised of a second switch filtration module (5a) and amplifier (5b), the input of second switch filtration module (5a) is connected with the output of described first order frequency mixing module (4), the input of amplifier (5b) is connected with the output of second switch filtration module (5a) and its output is connected with the radio-frequency head of second level frequency mixing module (6), wherein, second switch filtration module (5a) is comprised of two hilted broadsword four throw switches and four filters, four filters are connected between two hilted broadsword four throw switches and form four bypass passages.
6. 2～12GHz wide-band microwave front-end circuit according to claim 1, it is characterized in that, intermediate frequency filtering amplification module (7) is by a 3rd switch filtering module (7a), the second amplifier (7b) and the 4th switch filtering module (7c) form, the input of the 3rd switch filtering module (7a) is connected to the output of described second level frequency mixing module (6), the input of the second amplifier (7b) is connected to the output of the 3rd switch filtering module (7a), the input of the 4th switch filtering module (7c) is connected to the output of the second amplifier (7b), wherein, the 3rd switch filtering module (7a) and the 4th switch filtering module (7c) form by two single-pole double-throw switch (SPDT)s and two filters, two filters are connected to and between two single-pole double-throw switch (SPDT)s, form two bypass passages.
7. 2～12GHz wide-band microwave front-end circuit according to claim 1, it is characterized in that, described amplitude limit module (1), low noise amplification module (2), switch filtering module (3), filter and amplification module (5), second level frequency mixing module (6) and intermediate frequency filtering amplification module (7) are all selected chip device, and described first order frequency mixing module (4), crystal oscillating circuit module (8), the first local oscillator module (9), the second local oscillator module (10) and clock module (11) are all used surface mount device.
8. 2～12GHz microwave signal the method for reseptance that utilizes the 2～12GHz wide-band microwave front-end circuit described in claim 1 to realize, is characterized in that, the method comprises the following steps:
2～12GHz input signal that step 1, reception one antenna are intercepted and captured, and it is carried out to amplitude limiting processing;
Step 2, the signal after amplitude limiting processing is carried out to low noise amplification processing;
Step 3, the signal after low noise amplification is processed carry out switch filtering, the frequency band signals that selecting filter matches;
Step 4, the signal that utilizes one first local oscillation signal to select step 3 carry out Frequency mixing processing, obtain the first intermediate-freuqncy signal;
Step 5, the first intermediate-freuqncy signal that mixing obtains to step 4 are carried out filtering and are amplified and process;
Step 6, the intermediate-freuqncy signal of utilizing one second local oscillation signal to obtain step 5 are carried out Frequency mixing processing, obtain the second intermediate-freuqncy signal;
Step 7, the second intermediate-freuqncy signal that step 6 is obtained are carried out intermediate frequency filtering and are amplified and process;
Step 8, the intermediate-freuqncy signal that step 7 is obtained export a signal processor to.
9. 2～12GHz microwave signal method of reseptance according to claim 8, it is characterized in that, in described method, the first local oscillation signal be frequency range at the local oscillation signal of 10～15GHz, the second local oscillation signal is that frequency is the local oscillation signal of 7.66GHz, 7.6GHz, 3.34GHz and 3.4GHz.
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| CN105429654A (en) * | 2015-12-21 | 2016-03-23 | 武汉大学 | Frequency synthesizer for S-band wave observation radar |
| CN106100653A (en) * | 2016-06-13 | 2016-11-09 | 深圳市华讯方舟卫星通信有限公司 | Mixing discharger |
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| CN107181532A (en) * | 2017-05-11 | 2017-09-19 | 上海微小卫星工程中心 | Numerical model analysis heterodyne detection reception device and its data processing method of use |
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| CN108649967A (en) * | 2018-04-24 | 2018-10-12 | 北京航天控制仪器研究所 | A kind of more servicing transceiver systems in broadband based on zero intermediate frequency chip |
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| CN109728829A (en) * | 2018-12-29 | 2019-05-07 | 同方电子科技有限公司 | A kind of high performance wideband Receiver Module |
| CN110176936A (en) * | 2019-05-30 | 2019-08-27 | 中国电子科技集团公司第三十六研究所 | A kind of Ka frequency range broadband reception circuit |
| CN111049542A (en) * | 2019-12-19 | 2020-04-21 | 中国电子科技集团公司第三十六研究所 | Broadband receiving circuit |
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| CN106330217A (en) * | 2015-07-03 | 2017-01-11 | 三星电子株式会社 | Electronic device and receiving method thereof |
| CN105306091B (en) * | 2015-11-13 | 2018-11-09 | 成都前锋电子仪器有限责任公司 | Crystal oscillation fractional frequency circuit for radio general measuring instrument RF local oscillator circuit |
| CN105306091A (en) * | 2015-11-13 | 2016-02-03 | 成都前锋电子仪器有限责任公司 | Crystal oscillation frequency dividing circuit for radio comprehensive measurement instrument radio-frequency local oscillation circuit |
| CN105429654B (en) * | 2015-12-21 | 2018-04-20 | 武汉大学 | A kind of S-band wave observation radar frequency synthesizer |
| CN105429654A (en) * | 2015-12-21 | 2016-03-23 | 武汉大学 | Frequency synthesizer for S-band wave observation radar |
| CN106100653A (en) * | 2016-06-13 | 2016-11-09 | 深圳市华讯方舟卫星通信有限公司 | Mixing discharger |
| CN106100653B (en) * | 2016-06-13 | 2018-01-16 | 深圳市华讯方舟卫星通信有限公司 | It is mixed emitter |
| CN107181532A (en) * | 2017-05-11 | 2017-09-19 | 上海微小卫星工程中心 | Numerical model analysis heterodyne detection reception device and its data processing method of use |
| CN107181532B (en) * | 2017-05-11 | 2019-04-02 | 上海微小卫星工程中心 | Numerical model analysis heterodyne detection reception device and its data processing method of use |
| CN107171681B (en) * | 2017-07-17 | 2019-05-10 | 中国电子科技集团公司第三十六研究所 | A kind of highly sensitive reception circuit of Ku wave band |
| CN107171681A (en) * | 2017-07-17 | 2017-09-15 | 中国电子科技集团公司第三十六研究所 | A kind of highly sensitive receiving circuit of Ku wave bands |
| CN108011678A (en) * | 2017-12-06 | 2018-05-08 | 中国电子科技集团公司第四十研究所 | A kind of 110GHz Noise Factor Analyzers RF front-end circuit and processing method |
| CN108649967A (en) * | 2018-04-24 | 2018-10-12 | 北京航天控制仪器研究所 | A kind of more servicing transceiver systems in broadband based on zero intermediate frequency chip |
| CN109120302A (en) * | 2018-10-12 | 2019-01-01 | 南京屹信航天科技有限公司 | A kind of miniaturization ku frequency range ODU module |
| CN109120302B (en) * | 2018-10-12 | 2024-01-30 | 南京屹信航天科技有限公司 | Miniaturized ku frequency channel ODU module |
| CN109728829A (en) * | 2018-12-29 | 2019-05-07 | 同方电子科技有限公司 | A kind of high performance wideband Receiver Module |
| CN109728829B (en) * | 2018-12-29 | 2024-04-19 | 同方电子科技有限公司 | High-performance broadband radio frequency receiving module |
| CN109698698A (en) * | 2019-02-21 | 2019-04-30 | 中国人民解放军火箭军工程大学 | A kind of broadband mixing synthetic method and device for distribution interference |
| CN110176936A (en) * | 2019-05-30 | 2019-08-27 | 中国电子科技集团公司第三十六研究所 | A kind of Ka frequency range broadband reception circuit |
| CN111049542A (en) * | 2019-12-19 | 2020-04-21 | 中国电子科技集团公司第三十六研究所 | Broadband receiving circuit |
| CN111510140A (en) * | 2020-04-29 | 2020-08-07 | 北京航天广通科技有限公司分公司 | Clock local oscillator assembly |
| CN111510140B (en) * | 2020-04-29 | 2023-09-22 | 北京航天广通科技有限公司分公司 | Clock local oscillator assembly |
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