CN210693906U - Broadband ultrashort wave module circuit - Google Patents
Broadband ultrashort wave module circuit Download PDFInfo
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- CN210693906U CN210693906U CN201922166339.XU CN201922166339U CN210693906U CN 210693906 U CN210693906 U CN 210693906U CN 201922166339 U CN201922166339 U CN 201922166339U CN 210693906 U CN210693906 U CN 210693906U
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Abstract
The utility model relates to a broadband ultrashort wave module circuit, including mode circuit, preselection circuit, mixing circuit, filtering and amplifying circuit, mode circuit be used for realizing signal mode switch and with preselection circuit connects, preselection circuit be used for realizing harmonious filtering and with mixing circuit connects, mixing circuit is used for changing high frequency signal into fixed intermediate frequency signal, and with filtering and amplifying circuit connects, filtering and amplifying circuit is used for carrying out filtering and amplifying to intermediate frequency signal. A broadband ultrashort wave module circuit, whole circuit is constituteed organically to each functional module, the high integration of every module, on having realized the basis of superheterodyne circuit's function, the volume only has original ten minutes.
Description
Technical Field
The utility model belongs to the electronic communication field especially relates to a broadband ultrashort wave module circuit.
Background
A core module of the broadband receiver is a superheterodyne frequency conversion module, a conventional superheterodyne edge frequency circuit has complex circuits, and a set of complete machine system is often assembled by adopting different functional modules during the design of the superheterodyne circuit, so that the size is large, the power consumption is large, and the requirement on miniaturization of modern investigation equipment cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned current situation, provide a broadband ultrashort wave module circuit.
The utility model adopts the technical proposal that: a broadband ultrashort wave module circuit, comprising: the circuit comprises a mode circuit, a preselection circuit, a mixing circuit and a filtering and amplifying circuit, wherein the mode circuit is used for realizing signal mode switching and is connected with the preselection circuit, the preselection circuit is used for realizing tuning and filtering and is connected with the mixing circuit, the mixing circuit is used for converting a high-frequency signal into a fixed intermediate-frequency signal and is connected with the filtering and amplifying circuit, and the filtering and amplifying circuit is used for filtering and amplifying the intermediate-frequency signal.
A broadband ultrashort wave module circuit, whole circuit is constituteed organically to each functional module, the high integration of every module, on having realized the basis of superheterodyne circuit's function, the volume only has original ten minutes.
Drawings
Fig. 1 is a schematic block diagram of a wideband ultrashort wave module circuit provided by the present invention;
FIG. 2 is a circuit diagram of the mode circuit of FIG. 1;
FIG. 3 is a circuit diagram of the pre-selection circuit of FIG. 1;
FIG. 4 is a circuit diagram of the mixer circuit of FIG. 1;
fig. 5 is a circuit diagram of the filter amplifier circuit of fig. 1.
Detailed Description
The utility model provides a broadband ultrashort wave module circuit is introduced below in combination with the drawing:
please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, which are a schematic diagram of a wideband ultrashort wave module circuit according to the present invention, comprising: the circuit comprises a mode circuit 1, a preselection circuit 2, a mixing circuit 3 and a filtering and amplifying circuit 4, wherein the mode circuit 1 is used for realizing signal mode switching and is connected with the preselection circuit 2, the preselection circuit 2 is used for realizing tuning filtering and is connected with the mixing circuit 3, the mixing circuit 3 is used for converting a high-frequency signal into a fixed intermediate-frequency signal and is connected with the filtering and amplifying circuit 4, and the filtering and amplifying circuit 4 is used for filtering and amplifying the intermediate-frequency signal.
The mode circuit 1 comprises a limiter U8, a first capacitor C215, a first switch chip S12, a second capacitor C212, a low noise amplifier A4, a first inductor LQ49, a second inductor LQ26, a first resistor R188, a third capacitor C205, a fourth capacitor C211, a second resistor R211, a fifth capacitor C328, a second switch chip S11, a sixth capacitor C216, a seventh capacitor C217, a third resistor R199, a fourth resistor R200 and a fifth resistor R198, wherein one end of the limiter U8 is connected with an antenna, the other end of the limiter U8 is connected with one end of the first capacitor C215, the other end of the first capacitor C215 is connected with the first switch chip S12, the first switch chip S12 is connected with one end of the second capacitor C212, one end of the second switch chip S11 and one end of the sixth capacitor C216, the other end of the second capacitor C212 is connected with the low noise amplifier A4, and one end of the low noise amplifier L49 is connected with the first inductor L4, the other end of the first inductor LQ49 is connected with one end of the second inductor LQ26, the other end of the second inductor LQ26 is connected to one end of the first resistor R188, the other end of the first resistor R188 is connected to one end of the third capacitor C205, the other end of the third capacitor C205 is grounded, the other end of the fourth capacitor C211 is connected to one end of the second resistor R211, the other end of the second resistor R211 is connected to one end of the fifth capacitor C328, the other end of one end of the fifth capacitor C328 is connected to the second switch chip S11, one end of the fifth resistor R198 is grounded, the other end of the fifth resistor R198 is connected with one end of the fourth resistor R200, the other end of the fourth resistor R200 is connected to one end of the third resistor R199 and one end of the seventh capacitor C217, the other end of the third resistor R199 is grounded, and the other end of the seventh capacitor C217 is connected to the second switch chip S11.
The amplitude limiter U8 plays a role in protection, and conducts signals larger than 10dBm to a ground plane, so that a rear circuit is effectively protected; the first switch S12 and the second switch chip S11 are three switch chips, and are arranged in a single-blade three-way mode, and two switch chips form a three-way switching link; the mode circuit 1 has a low distortion mode and a low noise mode.
The preselection circuit 2 comprises a third inductor LQ3, a fourth inductor LQ2, a fifth inductor LQ5, a sixth inductor LQ1, a seventh inductor LQ6, an eighth inductor LQ4, a first varactor diode group D1, a second varactor diode group D2, a third varactor diode group D3, a fourth varactor diode group D4, a fifth varactor diode group D5, a sixth varactor diode group D6, a sixth resistor R1, a seventh resistor R1, an eighth resistor R1, a ninth resistor R1, a tenth resistor R1, an eleventh resistor R1, an eighth capacitor C1, a ninth capacitor C1, a tenth capacitor C463, the third inductor LQ1 is connected with one end of the fourth inductor LQ1 and one end of the fifth inductor LQ1, the other end of the fourth inductor LQ1 is connected with the other end of the varactor diode group D1, the second inductor l1, the other end of the varactor diode group D1 is connected with the varactor diode group D1, the second inductor l1, and the other end of the varactor diode group 1, the second varactor group D2 is connected to one ends of the fifth varactor group D5 and the eighth resistor R3, the other end of the eighth resistor R3 is connected to the eleventh resistor R7, one end of the ninth resistor R4, one end of the tenth resistor R5, and one end of the ninth capacitor C9, and the other end of the ninth capacitor C9 is grounded; the other end of the tenth resistor R5 is connected to the sixth varactor group D6 and the third varactor group D3, the other end of the ninth resistor R4 is connected to one end of the sixth resistor R1 and one end of the seventh resistor R2, the other end of the seventh resistor R2 is grounded, the other end of the sixth resistor R1 is connected to the fifth varactor group D5 and the sixth varactor group D6, the sixth varactor group D6 is connected to the third varactor group D3, the third varactor group D3 and the fourth varactor group D4 are connected to one end of the sixth inductor LQ1 and one end of the seventh inductor LQ6, the other end of the sixth inductor LQ1 and the other end of the seventh inductor LQ6 are connected to one end of the eighth inductor l 4, and the other end of the eighth inductor l 4 is connected to the tenth capacitor C463.
The first varactor group D1, the second varactor group D2, the third varactor group D3, the fourth varactor group D4, the fifth varactor group D5, the sixth varactor group D6 are composed of two varactors with negative electrodes connected, the first varactor group D1, the second varactor group D2, the third varactor group D3, the fourth varactor group D4, the fifth varactor group D5, the sixth varactor group D6 and an inductor constitute an LC band-pass filter, and the whole ultrashort wave receiving frequency band range is covered.
The mixer circuit 3 includes an eleventh capacitor C297, a twelfth capacitor C346, a thirteenth capacitor C339, a fourteenth capacitor C347, a fifteenth capacitor C326, a sixteenth capacitor C331, a seventeenth capacitor C466, an eighteenth capacitor C358, a nineteenth capacitor C355, a twentieth capacitor C348, a twelfth resistor R178, a thirteenth resistor R182, a ninth inductor L89, a tenth inductor L82, an eleventh inductor L90, a first transformer T1, a second transformer T2 and a mixer M2, one end of the eleventh capacitor C297 is connected to the second transformer T2, the second transformer T2 is connected to the twelfth capacitor C346, one end of the thirteenth capacitor C339, and one end of the fourteenth capacitor C347, the other end of the thirteenth capacitor C339 and the other end of the fourteenth capacitor C347 are connected to the mixer M2, one end of the ninth inductor L89 is connected to the mixer M2, and the other end is grounded; one end of the twelfth resistor R178 is connected with the mixer M2, and the other end is grounded; one end of the fifteenth capacitor C326, one end of the sixteenth capacitor C331, and one end of the seventeenth capacitor C466 are connected to the mixer M2; one end of each of the eighteenth capacitor C358 and the nineteenth capacitor C355 is connected to the mixer M2, and the other end is grounded; one end of the thirteenth resistor R182 is connected to the mixer M2, and the other end is grounded; one end of the tenth inductor L82 is connected to the mixer M2 and the first transformer T1, one end of the eleventh inductor L90 is connected to the mixer M2 and the first transformer T1, the other end of the tenth inductor L82 and the other end of the eleventh inductor L90 are connected to one end of the twentieth capacitor C348 and the first transformer T1, and the other end of the twentieth capacitor C348 is grounded.
The first transformer T1 and the second transformer T2 are balun, and the unbalanced circuit is converted into a balanced circuit; the other end of the fifteenth capacitor C326 and the other end of the seventeenth capacitor C466 are local oscillator signal input ends; the eighteenth capacitor C358 and the nineteenth capacitor C355 are used for filtering the power signal.
The mixer M2 is of an LTC5510 model, and the first transformer T1 is of a TC4-1W-7ALN +; the second transformer T2 is in a type of TCM1-43X +.
The filtering and amplifying circuit 4 comprises an output filter FL18, a twenty-first capacitor C95, a gain amplifier U22, a twelfth inductor L26, a twenty-second capacitor C97, a fourteenth resistor R83, a thirteenth inductor L31 and a twenty-third capacitor C98, the output filter FL18 is connected with one end of the twenty-first capacitor C95, the other end of the twenty-first capacitor C95 is connected with the gain amplifier U22, the gain amplifier U22 is connected to one end of the twelfth inductor L26, the other end of the twelfth inductor L26 is connected to one end of the twenty-second capacitor C97 and one end of the fourteenth resistor R83, the other end of the twenty-second capacitor C97 is grounded, the other end of the fourteenth resistor R83 is connected to one end of the thirteenth inductor L31, the other end of the thirteenth inductor L31 is connected to one end of the twenty-third capacitor C98, and the other end of the twenty-third capacitor C98 is grounded.
The output filter FL18 can filter local oscillator leakage signals, the output filter FL18 is LFCN-80, and the gain amplifier U22 is PGA-105.
A broadband ultrashort wave module circuit, whole circuit is constituteed organically to each functional module, the high integration of every module, on having realized the basis of superheterodyne circuit's function, the volume only has original ten minutes.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A broadband ultrashort wave module circuit, comprising: the circuit comprises a mode circuit, a preselection circuit, a mixing circuit and a filtering and amplifying circuit, wherein the mode circuit is used for realizing signal mode switching and is connected with the preselection circuit, the preselection circuit is used for realizing tuning and filtering and is connected with the mixing circuit, the mixing circuit is used for converting a high-frequency signal into a fixed intermediate-frequency signal and is connected with the filtering and amplifying circuit, and the filtering and amplifying circuit is used for filtering and amplifying the intermediate-frequency signal.
2. The wideband ultrashort wave module circuit of claim 1 wherein the mode circuit comprises a limiter, a first capacitor, a first switch chip, a second capacitor, a low noise amplifier, a first inductor, a second inductor, a first resistor, a third capacitor, a fourth capacitor, a second resistor, a fifth capacitor, a second switch chip, a sixth capacitor, a seventh capacitor, a third resistor, a fourth resistor, and a fifth resistor, wherein one end of the limiter is connected to an antenna and the other end is connected to one end of the first capacitor, the other end of the first capacitor is connected to the first switch chip, the first switch chip is connected to one end of the second capacitor, one end of the second switch chip, and one end of the sixth capacitor, the other end of the second capacitor is connected to the low noise amplifier, the low noise amplifier is connected to one end of the first inductor and one end of the fourth capacitor, the other end of the first inductor is connected with one end of the second inductor, the other end of the second inductor is connected with one end of the first resistor, the other end of the first resistor is connected with one end of the third capacitor, the other end of the third capacitor is grounded, the other end of the fourth capacitor is connected with one end of the second resistor, the other end of the second resistor is connected with one end of the fifth capacitor, the other end of one end of the fifth capacitor is connected with the second switch chip, one end of the fifth resistor is grounded, the other end of the fifth resistor is connected with one end of the fourth resistor, the other end of the fourth resistor is connected with one end of the third resistor and one end of the seventh capacitor, the other end of the third resistor is grounded, and the other end of the seventh capacitor is connected with the second switch chip.
3. The wideband ultrashort wave module circuit of claim 1 wherein the preselection circuit comprises a third inductor, a fourth inductor, a fifth inductor, a sixth inductor, a seventh inductor, an eighth inductor, a first varactor diode bank, a second varactor diode bank, a third varactor diode bank, a fourth varactor diode bank, a fifth varactor diode bank, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, an eighth capacitor, a ninth capacitor, a tenth capacitor, the third inductor is connected to one end of the fourth inductor and one end of the fifth inductor, the other end of the fourth inductor is connected to the first varactor diode bank and the second varactor diode bank, and the other end of the fifth inductor is connected to the first varactor diode bank and the second varactor diode bank, the second varactor diode group is connected with the fifth varactor diode group and one end of the eighth resistor, the other end of the eighth resistor is connected with the eleventh resistor, one end of the ninth resistor, one end of the tenth resistor and one end of the ninth capacitor, and the other end of the ninth capacitor is grounded; the other end of the tenth resistor is connected with the sixth varactor group and the third varactor group, the other end of the ninth resistor is connected with one end of the sixth resistor and one end of the seventh resistor, the other end of the seventh resistor is grounded, the other end of the sixth resistor is connected with the fifth varactor group and the sixth varactor group, the sixth varactor group is connected with the third varactor group, the third varactor group and the fourth varactor group are connected with one end of the sixth inductor and one end of the seventh inductor, the other end of the sixth inductor and the other end of the seventh inductor are connected with one end of the eighth inductor, and the other end of the eighth inductor is connected with the tenth capacitor.
4. The wideband ultrashort wave module circuit of claim 3 wherein the frequency mixing circuit comprises an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twelfth resistor, a thirteenth resistor, a ninth inductor, a tenth inductor, an eleventh inductor, a first transformer, a second transformer and a frequency mixer, wherein one end of the eleventh capacitor is connected to the second transformer, the second transformer is connected to one end of the twelfth capacitor, one end of the thirteenth capacitor and one end of the fourteenth capacitor, the other end of the thirteenth capacitor and the other end of the fourteenth capacitor are connected to the frequency mixer, one end of the ninth inductor is connected to the frequency mixer, and the other end of the ninth inductor is connected to ground; one end of the twelfth resistor is connected with the frequency mixer, and the other end of the twelfth resistor is grounded; one end of the fifteenth capacitor, one end of the sixteenth capacitor and one end of the seventeenth capacitor are connected with the mixer; one end of each of the eighteenth capacitor and the nineteenth capacitor is connected with the frequency mixer, and the other end of each of the eighteenth capacitor and the nineteenth capacitor is grounded; one end of the thirteenth resistor is connected with the frequency mixer, and the other end of the thirteenth resistor is grounded; one end of the tenth inductor is connected with the frequency mixer and the first transformer, one end of the eleventh inductor is connected with the frequency mixer and the first transformer, the other end of the tenth inductor and the other end of the eleventh inductor are connected with one end of the twentieth capacitor and the first transformer, and the other end of the twentieth capacitor is grounded.
5. The wideband ultrashort wave module circuit of claim 1 wherein the filtering and amplifying circuit comprises an output filter, a twenty-first capacitor, a gain amplifier, a twelfth inductor, a twenty-second capacitor, a fourteenth resistor, a thirteenth inductor, a twenty-third capacitor, the output filter is connected with one end of the twenty-first capacitor, the other end of the twenty-first capacitor is connected with the gain amplifier, the gain amplifier is connected with one end of the twelfth inductor, the other end of the twelfth inductor is connected with one end of the twenty-second capacitor and one end of the fourteenth resistor, the other end of the twenty-second capacitor is grounded, the other end of the fourteenth resistor is connected with one end of the thirteenth inductor, the other end of the thirteenth inductor is connected with one end of the twenty-third capacitor, and the other end of the twenty-third capacitor is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922166339.XU CN210693906U (en) | 2019-12-05 | 2019-12-05 | Broadband ultrashort wave module circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922166339.XU CN210693906U (en) | 2019-12-05 | 2019-12-05 | Broadband ultrashort wave module circuit |
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| CN210693906U true CN210693906U (en) | 2020-06-05 |
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| CN201922166339.XU Active CN210693906U (en) | 2019-12-05 | 2019-12-05 | Broadband ultrashort wave module circuit |
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