CN218829902U - S-band fast frequency hopping source - Google Patents
S-band fast frequency hopping source Download PDFInfo
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- CN218829902U CN218829902U CN202223219988.XU CN202223219988U CN218829902U CN 218829902 U CN218829902 U CN 218829902U CN 202223219988 U CN202223219988 U CN 202223219988U CN 218829902 U CN218829902 U CN 218829902U
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- frequency synthesizer
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- pass filter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a S wave band fast frequency hopping source, divide ware, wave band frequency synthesizer A, wave band frequency synthesizer B, wave band frequency synthesizer C, direct digital wave band frequency synthesizer, band pass filter A, mixer A, amplifier A, frequency multiplier, band pass filter B, mixer B, band pass filter C, amplifier B including the merit, the signal input part that the ware was divided to the merit connects outside input reference signal, the utility model provides a small, with low costs, the debugging degree of difficulty is little, control accuracy and the high low S wave band frequency synthesizer and the direct digital synthesizer of low stray low phase noise of reliability reach quick frequency hopping through the mode of mixing, doubling of frequency, and its integrated level is high, simple structure, dependable performance can provide this vibration source for different systems.
Description
Technical Field
The utility model relates to the technical field of integrated circuit, specifically a S wave band fast frequency hopping source.
Background
The band frequency synthesizer is used as an important component module of a communication system, various indexes of the band frequency synthesizer are very critical, particularly phase noise and spurious signals, and the phase noise influences various performances of the communication system, for example, in a receiver, the phase noise determines the signal-to-noise ratio of the receiver, adjacent channel suppression and the like; the spurious indicators affect the sensitivity of the system receiver.
Band frequency synthesizers generally have three ways in circuit implementation: the direct digital band synthesizer has the advantages of high frequency conversion speed, high frequency resolution, good phase noise performance, low frequency realization and poor spurious suppression.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a S wave band fast frequency hopping source to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the S-band fast frequency hopping source comprises a power divider, a band frequency synthesizer A, a band frequency synthesizer B, a band frequency synthesizer C, a direct digital band frequency synthesizer, a band pass filter A, a mixer A, an amplifier A, a frequency multiplier, a band pass filter B, a mixer B, a band pass filter C and an amplifier B, wherein a signal input end of the power divider is connected with an external input reference signal, a signal output end of the power divider is respectively connected with the band frequency synthesizer A, the band frequency synthesizer B and the band frequency synthesizer C, the other end of the band frequency synthesizer A is connected with the direct digital band frequency synthesizer, the band pass filter A, the mixer A, the amplifier A, the frequency multiplier, the band pass filter B, the mixer B, the band pass filter C and the amplifier B are sequentially connected, the mixer A is further connected with the band frequency synthesizer B, and the mixer B is further connected with the band frequency synthesizer C.
As a further technical solution of the present invention: the types of the waveband frequency synthesizer A, the waveband frequency synthesizer B and the waveband frequency synthesizer C are LMX2572.
As a further technical solution of the present invention: the model of the direct digital band frequency synthesizer is GM4912.
As a further technical solution of the present invention: the type of the mixer A and the type of the mixer B are both LTC5549.
As a further technical solution of the present invention: the models of the amplifier A and the amplifier B are AG203-63.
As a further technical solution of the present invention: the type of the frequency multiplier is KC2-19+.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a small volume, low cost, low debugging difficulty, high control precision and reliability, low stray and low phase noise S wave band frequency synthesizer and direct digital synthesizer which can achieve fast frequency hopping through frequency mixing and frequency doubling modes; the integrated level is high, the structure is simple, the performance is reliable, and the local vibration source can be provided for different systems.
Drawings
Fig. 1 is an overall schematic block diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, an S-band fast frequency hopping source comprises a power divider, a band frequency synthesizer a, a band frequency synthesizer B, a band frequency synthesizer C, a direct digital band frequency synthesizer, a band pass filter a, a mixer a, an amplifier a, a frequency multiplier, a band pass filter B, a mixer B, a band pass filter C, and an amplifier B, wherein a signal input end of the power divider is connected with an external input reference signal, the external input reference signal is subjected to power division and then provides a reference synthesis S, C dot frequency signal for a S, C band frequency synthesizer A, B, C, a signal output by the band frequency synthesizer a is provided for a direct digital frequency synthesizer GM4912 as a reference to output a section of fast switchable signal F1, the direct digital frequency synthesizer output signal F1 passes through a band-pass filter A and then filters all stray signals except a target signal, the target signal and a F2 signal output by a band frequency synthesizer B pass through a mixer A and output signal F3, the F3 passes through an amplifier A, a frequency multiplier, the band-pass filter B and a band frequency synthesizer C and then outputs a fixed local oscillation signal LO to be mixed at the mixer B and then output a final target S band frequency F, the band-pass filter C filters all signals except the target frequency F, and the size of the signal reaching an output end meets the index requirement through the amplifier B.
In the design, the types of the band frequency synthesizer A, the band frequency synthesizer B and the band frequency synthesizer C are LMX2572. The model of the direct digital band frequency synthesizer is GM4912. Both mixer a and mixer B are LTC5549 model. The amplifier a and the amplifier B are both AG203-63 in model. The type of the frequency multiplier is KC2-19+.
After the technical scheme is adopted, mutual leakage among a plurality of signals is prevented through the PCB layout, and stray size of output signals is adjusted through matching of the balun for adjusting the local oscillation signal input port of the frequency mixer, so that various index requirements are met. The utility model discloses simple structure, the integrated level is high, and debugging work load is not big, and the reliability is high, and is with low costs, has popularization and application and worth.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The S-band fast frequency hopping source comprises a power divider, a band frequency synthesizer A, a band frequency synthesizer B, a band frequency synthesizer C, a direct digital band frequency synthesizer, a band pass filter A, a mixer A, an amplifier A, a frequency multiplier, a band pass filter B, a mixer B, a band pass filter C and an amplifier B, and is characterized in that a signal input end of the power divider is connected with an external input reference signal, a signal output end of the power divider is respectively connected with the band frequency synthesizer A, the band frequency synthesizer B and the band frequency synthesizer C, the other end of the band frequency synthesizer A is connected with the direct digital band frequency synthesizer, the band pass filter A, the mixer A, the amplifier A, the frequency multiplier, the band pass filter B, the mixer B, the band frequency synthesizer C and the amplifier B are sequentially connected, the mixer A is further connected with the band frequency synthesizer B, and the mixer B is further connected with the band frequency synthesizer C.
2. The S-band fast frequency hopping source according to claim 1, wherein said band frequency synthesizer a, band frequency synthesizer B, and band frequency synthesizer C are all model numbers LMX2572.
3. An S-band fast frequency hopping source according to claim 1, wherein said direct digital band frequency synthesizer is of the type GM4912.
4. An S-band fast frequency hopping source according to claim 1, wherein said mixer a and mixer B are both LTC5549 type.
5. An S-band fast frequency hopping source according to claim 1, wherein said amplifier a and said amplifier B are each AG203-63 in size.
6. An S-band fast frequency hopping source according to claim 1, wherein said frequency multiplier is KC2-19+.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223219988.XU CN218829902U (en) | 2022-12-02 | 2022-12-02 | S-band fast frequency hopping source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223219988.XU CN218829902U (en) | 2022-12-02 | 2022-12-02 | S-band fast frequency hopping source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218829902U true CN218829902U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223219988.XU Active CN218829902U (en) | 2022-12-02 | 2022-12-02 | S-band fast frequency hopping source |
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| Country | Link |
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| CN (1) | CN218829902U (en) |
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2022
- 2022-12-02 CN CN202223219988.XU patent/CN218829902U/en active Active
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