CN220440670U - X-band frequency multiplier based on double pulse amplitude doubling frequency multiplier circuit - Google Patents
X-band frequency multiplier based on double pulse amplitude doubling frequency multiplier circuit Download PDFInfo
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- CN220440670U CN220440670U CN202321388687.1U CN202321388687U CN220440670U CN 220440670 U CN220440670 U CN 220440670U CN 202321388687 U CN202321388687 U CN 202321388687U CN 220440670 U CN220440670 U CN 220440670U
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Abstract
The utility model provides an X-band frequency multiplier based on a double pulse amplitude doubling frequency multiplier circuit, which comprises the following components: the frequency multiplier main body comprises a tuning circuit module and a frequency selection circuit module which are arranged in parallel, wherein the frequency selection circuit module is connected with a first Schottky diode and a third Schottky diode in parallel, positive ends of the first Schottky diode and the third Schottky diode are grounded, the tuning circuit module is connected with a second Schottky diode and a fourth Schottky diode which are biased in forward direction in series, the positive end of the second Schottky diode and the negative end of the first Schottky diode are the same circuit node, the positive end of the fourth Schottky diode and the negative end of the third Schottky diode are the same circuit node, the positive end of the second Schottky diode is an input end, and the negative end of the fourth Schottky diode is an output end; the input matching network module is used for receiving the source excitation signal and is electrically connected with the input end; the output matching network module for outputting the frequency multiplication signal is electrically connected with the output end.
Description
Technical Field
The utility model relates to the technical field of communication equipment such as radio frequency microwaves, satellite communication and radars, in particular to an X-band frequency multiplier based on a double-pulse amplitude doubling frequency multiplier circuit.
Background
The frequency multiplier is an important component in communication systems such as radio frequency circuits, microwave loads, radars and the like, and plays a vital role in the communication systems.
The frequency multiplier is a system component for frequency conversion, and is widely applied to a radio frequency front end, a receiving and transmitting system and a frequency synthesizer, and the frequency multiplier multiplies the frequency of an input signal to obtain a signal with integral multiple of the fundamental frequency. The frequency doubler is divided into odd frequency doubling, even frequency doubling and arbitrary frequency doubling according to specific functions. The active frequency multiplication adopted at present has certain additional phase noise degradation in the actual use process.
To solve the above problems, the present application provides an X-band frequency multiplier based on a double pulse amplitude doubling frequency multiplier circuit.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides an X-band frequency multiplier based on a double pulse amplitude doubling frequency multiplier circuit, which has extremely low additional phase noise performance and can remarkably improve the noise performance of a frequency multiplication signal.
An X-band frequency multiplier based on a double pulse amplitude doubling frequency multiplier circuit comprises a frequency multiplier main body, an input matching network module and an output matching network module of the frequency multiplier main body;
the frequency multiplier main body comprises a tuning circuit module and a frequency selection circuit module which are arranged in parallel, wherein the frequency selection circuit module is connected with a first Schottky diode and a third Schottky diode in parallel, the positive ends of the first Schottky diode and the third Schottky diode are grounded, the tuning circuit module is connected with a second Schottky diode and a fourth Schottky diode which are biased in forward direction in series, the positive end of the second Schottky diode and the negative end of the first Schottky diode are the same circuit node, the positive end of the fourth Schottky diode and the negative end of the third Schottky diode are the same circuit node, the positive end of the second Schottky diode is an input end, and the negative end of the fourth Schottky diode is an output end;
the input matching network module is used for receiving a source excitation signal and is electrically connected with the input end;
the output matching network module for outputting the frequency multiplication signal is electrically connected with the output end.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the frequency selective circuit module comprises a second inductor and a second capacitor which are connected in series between the second Schottky diode and the fourth Schottky diode.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the tuning circuit module comprises a third inductor, and two ends of the third inductor are respectively and electrically connected with the negative end of the first Schottky diode and the negative end of the third Schottky diode.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the input matching network module comprises an input matching network structure of any one of T-shaped, n-shaped, gamma-shaped and inverted gamma-shaped structures.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the input matching network module is an inverted-L-shaped input matching network structure, the inverted-L-shaped input matching network comprises a first inductor and a first capacitor, one end of the first capacitor receives a source excitation signal, the other end of the first capacitor and one end of the first inductor are the same circuit node and are electrically connected with the input end, and the other end of the first inductor is grounded.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the frequency range of the input source excitation signal is 480-520 MHz, and the frequency range of the output signal is twenty times of the input frequency.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the output matching network module comprises an output matching network structure of any one of T-shaped, n-shaped, gamma-shaped and inverted gamma-shaped structures.
On the basis of the above-mentioned scheme and as a preferable scheme of the above-mentioned scheme: the output matching network module is of a gamma-type output matching network structure, the gamma-type output matching network structure comprises a fourth inductor and a third capacitor, one end of the third capacitor outputs signals after frequency modulation, the other end of the fourth capacitor and one end of the fourth inductor are the same circuit node and are electrically connected with the output end, and the other end of the fourth inductor is grounded.
Compared with the prior art, the utility model has the following beneficial effects:
the novel high-order frequency doubling circuit topological structure based on the diode has extremely low additional phase noise, the frequency doubling efficiency of the novel high-order frequency doubling circuit topological structure is remarkably improved compared with that of a traditional passive frequency multiplier, the frequency doubling circuit is simple in structure, easy to realize, high in reliability, good in stability, good in frequency band expansibility, occupies only a small physical size, is convenient to integrate and apply, and can be widely applied to circuits and systems needing frequency doubling.
The frequency doubling method adopts a passive frequency doubling mode, no power bias is needed, an excitation signal is input into the frequency multiplier main body from the input end through the input matching network, the frequency-doubled signal is output from the output end through the output matching network, the specific frequency of the source excitation signal is not limited, but the frequency of the output signal is necessarily an integral multiple of the input frequency; the passive frequency doubling mode has extremely low additional phase noise performance, and can remarkably improve the noise performance of frequency doubling signals.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic circuit diagram of the present application;
FIG. 2 is a graph of the output signal spectrum of the present application;
fig. 3 is a time domain diagram of the output signal of the present application.
In the figure: 1. a first capacitor; 2. a first inductance; 3. a first schottky diode; 4. a second schottky diode; 5. a second capacitor; 6. a second inductor; 7. a third inductance; 8. a fourth inductance; 9. a third capacitor; 10. a third schottky diode; 11. a fourth schottky diode; 12. an input end; 13. and an output terminal.
Detailed Description
The following description and the discussion of the embodiments of the present utility model will be made more complete and less in view of the accompanying drawings, in which it is to be understood that the utility model is not limited to the embodiments of the utility model disclosed and that it is intended to cover all such modifications as fall within the scope of the utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In order to facilitate understanding of the embodiments of the present utility model, the present application will be described in detail below with reference to fig. 1 to 3 of the specification, and specific embodiments are further illustrated as examples, and the embodiments do not constitute limitations on the embodiments of the present utility model.
Referring to fig. 1, an X-band frequency multiplier based on a double pulse amplitude doubling frequency multiplier circuit includes a frequency multiplier body, an input matching network module and an output matching network module; the frequency multiplier main body comprises a tuning circuit module and a frequency selection circuit module which are arranged in parallel, wherein the frequency selection circuit module is connected with a first Schottky diode 3 and a third Schottky diode 10 in parallel, positive ends of the first Schottky diode 3 and the third Schottky diode 10 are grounded, the tuning circuit module is connected with a second Schottky diode 4 and a fourth Schottky diode 11 which are biased in the forward direction in series, the positive end of the second Schottky diode 4 and the negative end of the first Schottky diode 3 are the same circuit node, the positive end of the fourth Schottky diode 11 and the negative end of the third Schottky diode 10 are the same circuit node, the positive end of the second Schottky diode 4 is an input end 12, and the negative end of the fourth Schottky diode 11 is an output end 13; the input matching network module for receiving the source excitation signal is electrically connected with the input end 12; the output matching network module for outputting the frequency multiplication signal is electrically connected to the output terminal 13.
Referring to fig. 1, in a specific example of the present application, the frequency selective circuit module includes a second inductor 6 and a second capacitor 5 connected in series between a second schottky diode 4 and a fourth schottky diode 11. The tuning circuit module comprises a third inductor 7, and two ends of the third inductor 7 are respectively and electrically connected with the negative end of the first schottky diode 3 and the negative end of the third schottky diode 10.
Referring to fig. 1 to 3, in a specific example of the present application, the input matching network module is an inverted- Γ input matching network structure, the inverted- Γ input matching network includes a first inductor 2 and a first capacitor 1, one end of the first capacitor 1 receives a source excitation signal, the other end of the first capacitor 1 and one end of the first inductor 2 are the same circuit node and are electrically connected to an input end 12, and the other end of the first inductor 2 is grounded. It should be noted that, the input matching network module of the present application includes an input matching network structure of any one of a T-type, an n-type, an Γ -type and an inverted Γ -type structure.
Referring to fig. 1 to 3, in a specific example of the present application, the output matching network module is a Γ -type output matching network structure, the Γ -type output matching network structure includes a fourth inductor 8 and a third capacitor 9, one end of the third capacitor 9 outputs a frequency modulated signal, the other end of the fourth capacitor and one end of the fourth inductor 8 are the same circuit node and are electrically connected to an output end 13, and the other end of the fourth inductor 8 is grounded. It should be noted that, in the present application, the output matching network module includes an output matching network structure of any one of a T-type, an n-type, an Γ -type and an inverted Γ -type structure.
In a specific example of the application, the input source excitation signal frequency range is 480-520 MHz, and the output signal frequency range is twenty times of the input frequency. Specifically, the input signal frequency is 500MHz, the low noise 20 times frequency multiplication is realized by adopting a two-stage frequency multiplication serial connection mode, and the additional phase noise generated by the Schottky diode frequency multiplication belongs to the resistive frequency multiplication is extremely low in degradation, meanwhile, the frequency multiplication efficiency of the Schottky diode frequency multiplication device is remarkably improved compared with that of the traditional passive frequency multiplier, the frequency multiplier is high in response frequency and good in frequency band expansibility, and the circuit is simple in structure, easy to realize, small in physical size, convenient to integrate and apply and wide in application scene.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (8)
1. The X-band frequency multiplier based on the double pulse amplitude doubling frequency multiplier is characterized by comprising a frequency multiplier main body, an input matching network module and an output matching network module of the frequency multiplier main body;
the frequency multiplier main body comprises a tuning circuit module and a frequency selection circuit module which are arranged in parallel, wherein the frequency selection circuit module is connected with a first Schottky diode and a third Schottky diode in parallel, the positive ends of the first Schottky diode and the third Schottky diode are grounded, the tuning circuit module is connected with a second Schottky diode and a fourth Schottky diode which are biased in forward direction in series, the positive end of the second Schottky diode and the negative end of the first Schottky diode are the same circuit node, the positive end of the fourth Schottky diode and the negative end of the third Schottky diode are the same circuit node, the positive end of the second Schottky diode is an input end, and the negative end of the fourth Schottky diode is an output end;
the input matching network module is used for receiving a source excitation signal and is electrically connected with the input end;
the output matching network module for outputting the frequency multiplication signal is electrically connected with the output end.
2. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuits according to claim 1, wherein the frequency selective circuit module comprises a second inductance and a second capacitance connected in series between the second schottky diode and the fourth schottky diode.
3. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuits according to claim 1, wherein the tuning circuit module comprises a third inductor, two ends of the third inductor are respectively electrically connected with a negative terminal of the first schottky diode and a negative terminal of the third schottky diode.
4. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuits according to claim 1, wherein the input matching network module comprises an input matching network structure of any one of a T-type, an n-type, a Γ -type and an inverted Γ -type structure.
5. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuit according to claim 4, wherein the input matching network module is an inverted- Γ input matching network structure, the inverted- Γ input matching network comprises a first inductor and a first capacitor, one end of the first capacitor receives a source excitation signal, the other end of the first capacitor and one end of the first inductor are the same circuit node and are electrically connected with the input end, and the other end of the first inductor is grounded.
6. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuit according to claim 5, wherein the frequency range of the source excitation signal input to the first capacitor is 480-520 MHz, and the frequency range of the output signal is twenty times of the input frequency.
7. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuit according to claim 1, wherein the output matching network module comprises an output matching network structure of any one of a T-type, a n-type, a Γ -type and an inverted Γ -type structure.
8. The X-band frequency multiplier based on double pulse amplitude doubling frequency circuit according to claim 7, wherein the output matching network module is a Γ -shaped output matching network structure, the Γ -shaped output matching network structure comprises a fourth inductor and a third capacitor, one end of the third capacitor outputs a frequency modulated signal, the other end of the third capacitor and one end of the fourth inductor are the same circuit node and are electrically connected with the output end, and the other end of the fourth inductor is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321388687.1U CN220440670U (en) | 2023-06-02 | 2023-06-02 | X-band frequency multiplier based on double pulse amplitude doubling frequency multiplier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321388687.1U CN220440670U (en) | 2023-06-02 | 2023-06-02 | X-band frequency multiplier based on double pulse amplitude doubling frequency multiplier circuit |
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| Publication Number | Publication Date |
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| CN220440670U true CN220440670U (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321388687.1U Active CN220440670U (en) | 2023-06-02 | 2023-06-02 | X-band frequency multiplier based on double pulse amplitude doubling frequency multiplier circuit |
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| CN (1) | CN220440670U (en) |
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- 2023-06-02 CN CN202321388687.1U patent/CN220440670U/en active Active
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