CN204392233U - Combination Larger Dynamic variable ratio frequency changer receiver module - Google Patents
Combination Larger Dynamic variable ratio frequency changer receiver module Download PDFInfo
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- CN204392233U CN204392233U CN201520069184.7U CN201520069184U CN204392233U CN 204392233 U CN204392233 U CN 204392233U CN 201520069184 U CN201520069184 U CN 201520069184U CN 204392233 U CN204392233 U CN 204392233U
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Abstract
The utility model relates to ic manufacturing technology field, particularly relate to a kind of combination Larger Dynamic variable ratio frequency changer receiver module, comprise frequency hopping local oscillator unit, merit subdivision, 8 tunnel down-converter unit, DC-DC circuit and control unit, described frequency hopping local oscillator unit is connected with described merit subdivision signal, described merit subdivision separates the LO end that 8 road signals are transferred to the frequency mixer of described 8 tunnel down-converter unit respectively, and described control unit is connected with the numerical-control attenuator signal in channel cell under every road respectively; Described DC-DC circuit is connected with described 8 tunnel down-converter unit.Multiple module is combined to by this module becomes a module, logical relation redesigns, the connection of frequency hopping synthesizer and 8 tunnel down-conversion passages has come with one 1 point 8 high frequency power distributors, the connection of each intermodule designs pin in a row and carries out rigid connection, make installation more simply take up room seldom, module anti-interference is stronger, and error probability drops to minimum, easy for installation, reliability is higher.
Description
Technical field
The present invention relates to ic manufacturing technology field, particularly relate to a kind of combination Larger Dynamic variable ratio frequency changer receiver module.
Background technology
Prior art frequency hopping synthesizer, 8 tunnel down-conversion passages, power supply are all separate separate modular with control, and take up room comparatively large, it is many that the logical relation between each module connects fly line, and take manual time very long, efficiency probability that is extremely low, that make mistakes is also very large.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned technology, and a kind of combination Larger Dynamic variable ratio frequency changer receiver module is provided, integrated level is high, installation is simpler, it is little to take up room.
The present invention for achieving the above object, by the following technical solutions: a kind of combination Larger Dynamic variable ratio frequency changer receiver module, it is characterized in that: comprise frequency hopping local oscillator unit, merit subdivision, 8 tunnel down-converter unit, DC-DC circuit and control unit, described frequency hopping local oscillator unit is connected with described merit subdivision signal, described merit subdivision separates the LO end that 8 road signals are transferred to the frequency mixer of described 8 tunnel down-converter unit respectively, and described control unit is connected with the numerical-control attenuator signal in channel cell under every road respectively; Described DC-DC circuit is connected with described 8 tunnel down-converter unit.
Preferably, in described 8 tunnel down-converter unit, each down-conversion channel is made up of amplitude limiter, the first numerical-control attenuator, the second numerical-control attenuator, the 3rd numerical-control attenuator, the first amplifier, the second amplifier, the 3rd amplifier, the 4th amplifier, the first filter, the second filter, frequency mixer, equalizer, input signal is 9GHz ~ 16GHz broadband signal, receive the signal of coming in and enter down-conversion channel, through the amplitude limit of described amplitude limiter, the attenuation of external control is carried out by described first numerical-control attenuator, then decay suitable for signal is amplified through described first amplifier, signal flatness again in equalizer equalizing strip, enter described frequency mixer and local oscillation signal carries out mixing, export a new fixed frequency signal, for intermediate-freuqncy signal, intermediate-freuqncy signal carries out filtering through described first filter to spurious signal, then amplify through the second amplifier, controlled decay is carried out again through the second numerical-control attenuator, amplify with the 3rd amplifier again, then decay through the 3rd controllable attenuator, and then through the second filter, a filtering is carried out to harmonic signal again after the 4th amplifier amplifies, export the intermediate-freuqncy signal of a clean high s/n ratio.
Preferably, described frequency hopping local oscillator unit comprises crystal oscillator, phase discriminator, single-chip microcomputer, loop filter, oscillator, described crystal oscillator, phase discriminator, loop filter, oscillator successively signal connect, described single-chip microcomputer is connected with described phase discriminator signal, and described phase discriminator is connected with the output of described oscillator.
The invention has the beneficial effects as follows:
Multiple module is combined to by this module becomes a module, logical relation redesigns, the connection of frequency hopping synthesizer and 8 tunnel down-conversion passages has come with one 1 point 8 high frequency power distributors, the connection of each intermodule designs pin in a row and carries out rigid connection, make installation more simply take up room seldom, module anti-interference is stronger, and error probability drops to minimum, easy for installation, reliability is higher.
The mode index that index separately coordinates than multimode is higher, and it is integrated that this module realizes multichannel, and module 8 paths can control respectively, and each road can work independently.This module realizes the Larger Dynamic of signal, signal dynamics 90dB, can export a stable intermediate-freuqncy signal under input signal-85dBm ~+5dBm.This module realizes the wide bandwidth of input signal, and 9GHz ~ 16GHz stepping is that the microwave frequency signal of 1MHz can normally work.
Accompanying drawing explanation
Fig. 1 is phase-locked loop frequency source conventional in prior art;
Fig. 2 is the theory diagram of 8 tunnel down-converter unit in the present invention;
Fig. 3 is the circuit theory diagrams of frequency hopping local oscillator unit in the present invention;
Fig. 4 is the circuit theory diagrams of DC-DC circuit in the present invention.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing and preferred embodiment, as shown in Figures 1 to 3, a kind of combination Larger Dynamic variable ratio frequency changer receiver module, comprise frequency hopping local oscillator unit, merit subdivision, 8 tunnel down-converter unit, DC-DC circuit and control unit, described frequency hopping local oscillator unit is connected with described merit subdivision signal, described merit subdivision separates the LO end that 8 road signals are transferred to the frequency mixer of described 8 tunnel down-converter unit respectively, and described control unit is connected with the numerical-control attenuator signal in channel cell under every road respectively; Described DC-DC circuit is connected with described 8 tunnel down-converter unit.The local oscillation signal on 8 each road of down-converter unit, tunnels is all export to a centimeter unit by frequency hopping local oscillator unit, separate 8 tunnels by centimetre unit merit to hold to the LO of the frequency mixer of the down-converter unit on 8 tunnels respectively, for each road down-conversion channel provides a stable frequency hopping local oscillator signal.3 numerical-control attenuators of digital control unit Ye Shiweimei road down-conversion channel provide digital controlled signal, realize the Dynamic Signal controlled processed of whole receiver module, then the high voltage drop of many spurious components that outside inputs by DC_DC circuit carries out filtering to low-voltage, for all active devices of whole module are powered.
As shown in Figure 2, in described 8 tunnel down-converter unit, each down-conversion channel is made up of amplitude limiter, the first numerical-control attenuator, the second numerical-control attenuator, the 3rd numerical-control attenuator, the first amplifier, the second amplifier, the 3rd amplifier, the 4th amplifier, the first filter, the second filter, frequency mixer, equalizer, input signal is 9GHz ~ 16GHz broadband signal, receive the signal of coming in and enter down-conversion channel, through the amplitude limit of described amplitude limiter, the attenuation of external control is carried out by described first numerical-control attenuator, then decay suitable for signal is amplified through described first amplifier, signal flatness again in equalizer equalizing strip, enter described frequency mixer and local oscillation signal carries out mixing, export a new fixed frequency signal, for intermediate-freuqncy signal, intermediate-freuqncy signal carries out filtering through described first filter to spurious signal, then amplify through the second amplifier, controlled decay is carried out again through the second numerical-control attenuator, amplify with the 3rd amplifier again, then decay through the 3rd controllable attenuator, and then through the second filter, a filtering is carried out to harmonic signal again after the 4th amplifier amplifies, export the intermediate-freuqncy signal of a clean high s/n ratio.
As shown in Figure 3, described frequency hopping local oscillator unit comprises crystal oscillator, phase discriminator, single-chip microcomputer, loop filter, oscillator, described crystal oscillator, phase discriminator, loop filter, oscillator successively signal connect, described single-chip microcomputer is connected with described phase discriminator signal, and described phase discriminator is connected with the output of described oscillator.The reference signal that crystal oscillator produces enters phase discriminator and carries out R frequency division and obtain a stable phase demodulation frequency, feed back to phase discriminator signal by VCO output to carry out Fractional-N frequency and obtain frequency, the carrying out of two frequencies holds output electric current by the charge pump CP of phase discriminator after phase compare, through the voltage-controlled end of loop filter control VCO, change the output frequency of VCO, when the phase difference of two frequencies tends towards stability, the electric current that CP exports also can be stablized, the output of final VCO also can settle out, and the frequency that frequency source can export a locking is local oscillation signal.
As shown in Figure 4, in circuit, IN end is input+12V voltage, and OUT end is output+5.5V voltage.DC-DC circuit provides+5.5V stable dc power supply for whole module, this DC-DC circuit can load 4 amperes electric current by and ensure the stability that exports.The core devices of circuit is 3 LT3480IMSE voltage stabilizing integrated chips, and peripheral RLC is that coupling LT3480IMSE obtains a stable+5.5V voltage.
It is integrated that this module realizes multichannel, and module 8 paths can control respectively, and each road can work independently.This module realizes the Larger Dynamic of signal, signal dynamics 90dB, can export a stable intermediate-freuqncy signal under input signal-85dBm ~+5dBm.This module realizes the wide bandwidth of input signal, and 9GHz ~ 16GHz stepping is that the microwave frequency signal of 1MHz can normally work.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a combination Larger Dynamic variable ratio frequency changer receiver module, it is characterized in that: comprise frequency hopping local oscillator unit, merit subdivision, 8 tunnel down-converter unit, DC-DC circuit and control unit, described frequency hopping local oscillator unit is connected with described merit subdivision signal, described merit subdivision separates the LO end that 8 road signals are transferred to the frequency mixer of described 8 tunnel down-converter unit respectively, and described control unit is connected with the numerical-control attenuator signal in channel cell under every road respectively; Described DC-DC circuit is connected with described 8 tunnel down-converter unit.
2. combination Larger Dynamic variable ratio frequency changer receiver module according to claim 1, is characterized in that: in described 8 tunnel down-converter unit, each down-conversion channel is made up of amplitude limiter, the first numerical-control attenuator, the second numerical-control attenuator, the 3rd numerical-control attenuator, the first amplifier, the second amplifier, the 3rd amplifier, the 4th amplifier, the first filter, the second filter, frequency mixer, equalizer, input signal is 9GHz ~ 16GHz broadband signal, receive the signal of coming in and enter down-conversion channel, through the amplitude limit of described amplitude limiter, the attenuation of external control is carried out by described first numerical-control attenuator, then decay suitable for signal is amplified through described first amplifier, signal flatness again in equalizer equalizing strip, enter described frequency mixer and local oscillation signal carries out mixing, export a new fixed frequency signal, for intermediate-freuqncy signal, intermediate-freuqncy signal carries out filtering through described first filter to spurious signal, then amplify through the second amplifier, controlled decay is carried out again through the second numerical-control attenuator, amplify with the 3rd amplifier again, then decay through the 3rd controllable attenuator, and then through the second filter, a filtering is carried out to harmonic signal again after the 4th amplifier amplifies, export the intermediate-freuqncy signal of a clean high s/n ratio.
3. combination Larger Dynamic variable ratio frequency changer receiver module according to claim 1, it is characterized in that: described frequency hopping local oscillator unit comprises crystal oscillator, phase discriminator, single-chip microcomputer, loop filter, oscillator, described crystal oscillator, phase discriminator, loop filter, oscillator successively signal connect, described single-chip microcomputer is connected with described phase discriminator signal, and described phase discriminator is connected with the output of described oscillator.
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| CN201520069184.7U CN204392233U (en) | 2015-01-30 | 2015-01-30 | Combination Larger Dynamic variable ratio frequency changer receiver module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453753A (en) * | 2017-08-31 | 2017-12-08 | 安徽四创电子股份有限公司 | A kind of C-band VCO frequency stabilization circuits |
| CN109120318A (en) * | 2018-11-07 | 2019-01-01 | 上海创远仪器技术股份有限公司 | The circuit structure of local oscillator driving function is realized based on extensive MIMO technique |
| CN111220847A (en) * | 2019-05-21 | 2020-06-02 | 一诺仪器（中国）有限公司 | Frequency conversion system and spectrum analyzer |
-
2015
- 2015-01-30 CN CN201520069184.7U patent/CN204392233U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453753A (en) * | 2017-08-31 | 2017-12-08 | 安徽四创电子股份有限公司 | A kind of C-band VCO frequency stabilization circuits |
| CN107453753B (en) * | 2017-08-31 | 2023-05-12 | 安徽四创电子股份有限公司 | C wave band VCO frequency stabilizing circuit |
| CN109120318A (en) * | 2018-11-07 | 2019-01-01 | 上海创远仪器技术股份有限公司 | The circuit structure of local oscillator driving function is realized based on extensive MIMO technique |
| CN111220847A (en) * | 2019-05-21 | 2020-06-02 | 一诺仪器（中国）有限公司 | Frequency conversion system and spectrum analyzer |
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Effective date of registration: 20160706 Address after: 300451, Tianjin Binhai New Area, Tanggu new North Road, 4668, innovation and Innovation Park, 22-A, workshop 4, B angle -3 Patentee after: Tianjin Zhongke haigao Microwave Technology Co. Ltd. Address before: 300451, Tianjin Binhai New Area, Tanggu new North Road, 4668, innovation and Innovation Park, 22-A, workshop 4, B angle -3 Patentee before: Chen Pufeng |