CN215498901U

CN215498901U - Amplitude limiting switch filtering component

Info

Publication number: CN215498901U
Application number: CN202121771604.8U
Authority: CN
Inventors: 袁文碧; 黄佳锐
Original assignee: Sichuan Gulf Microwave Technology Co ltd
Current assignee: Sichuan Gulf Microwave Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-11
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to a limiting switch filtering component, which comprises an attenuation circuit, wherein one end of the attenuation circuit is connected with an input end, the other end of the attenuation circuit is connected with an input end of the limiting circuit, an output end of the limiting circuit is connected with one end of a switch circuit, the other end of the switch circuit is connected with an input end of a filtering circuit, and an output end of the filtering circuit is connected with an input end of an amplifying circuit.

Description

Amplitude limiting switch filtering component

Technical Field

The utility model relates to the technical field of radio frequency microwave assemblies, in particular to a limiting switch filtering assembly.

Background

The existing amplitude limiting switch filtering component can limit the amplitude of the power of the microwave component and output gain, and basically meets the overall requirement. However, through research and overall use feedback, the existing microwave assembly has many defects inside, and the defects can not meet the requirements in the following aspects: the requirement of the amplitude limiter on recovery time under power is fast, and the requirement of out-of-band rejection points on rejection is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

It is an object of the present invention to provide a clipping switch filtering component to solve the above-mentioned problems in the prior art.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a limit switch filtering component, includes decay circuit, decay circuit's one end is connected with the input, and the other end is connected with the limit circuit input, limit circuit's output is connected with switch circuit's one end, switch circuit's the other end is connected with filter circuit's input, filter circuit's output is connected with amplifier circuit's input.

Further, the attenuation circuit is an attenuator with the model number HA06C050 SIMK.

Further, the limiter circuit includes a capacitor C1, one end of the capacitor C1 is connected to the output end of the attenuator circuit, the other end of the capacitor C1 is connected to one end of an inductor L1 and an anode of a diode V1, the other end of the inductor L1 and a cathode of the diode V1 are both grounded, an anode of the diode V1 is further connected to one end of a capacitor C2, the other end of the capacitor C2 is connected to one end of a diode V2, a diode V3, a diode V4, a diode V5, an anode of a diode V6, a cathode of a diode V7, and one end of a capacitor C3, the diode V2, the diode V3, the diode V4, the diode V5, and a cathode of the diode V6 are all grounded, an anode of the diode V7 is grounded, and the other end of the capacitor C3 is connected to the switch circuit.

Further, the switch circuit is composed of switch chips NC 16165-112.

Further, the filter circuit is composed of a patch LC filter HF 2.7.

Further, the amplifying circuit is composed of a low noise amplifier chip HMC 462.

(III) compared with the prior art, has the following beneficial effects

1. The amplitude limiting switch filtering component is a microwave control device specially developed for a microwave component, and meets the requirements of testing frequency, service power, out-of-band rejection, output gain and the like required by use.

2. In order to meet the requirements of frequency band, high power, out-of-band rejection and output gain use of a microwave component, an advanced, mature and high-performance microwave diode, a power attenuation sheet, a surface-mounted LC filter and a low-noise amplifier are adopted, and impedance is subjected to simulation matching.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a graph of input signal versus output signal for the transmit state of the present invention;

FIG. 3 is a diagram of input signal versus output signal in the receiving state of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a limiting switch filtering component comprises an attenuation circuit, wherein one end of the attenuation circuit is connected with an input end, the other end of the attenuation circuit is connected with an input end of a limiting circuit, an output end of the limiting circuit is connected with one end of a switch circuit, the other end of the switch circuit is connected with an input end of a filtering circuit, and an output end of the filtering circuit is connected with an input end of an amplifying circuit; the attenuation circuit is an attenuator with the model number HA06C050 SIMK; the amplitude limiting circuit comprises a capacitor C1, one end of the capacitor C1 is connected with the output end of the attenuation circuit, the other end of the capacitor C1 is connected with one end of an inductor L1 and the anode of a diode V1, the other end of the inductor L1 and the cathode of a diode V1 are both grounded, the anode of a diode V1 is further connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of a diode V2, a diode V3, a diode V4, a diode V5, the anode of a diode V6, the cathode of a diode V7 and one end of a capacitor C3, the cathodes of the diode V2, the diode V3, the diode V4, the diode V5 and the diode V6 are all grounded, the anode of the diode V7 is grounded, and the other end of the capacitor C3 is connected with the switch circuit.

Referring to fig. 2, when the microwave module is IN a transmitting state, the input IN is a high-power signal, wherein the attenuation circuit a1 is connected to the input to reduce the high-power signal by 6dBm and then input the reduced signal to the amplitude limiting circuit, the diode V5 is a flip-chip transistor, the amplitude limiting circuit limits the amplitude of the high-power signal, protects the post-stage switch circuit, and outputs the signal through the filter circuit and the amplifying circuit.

Referring to fig. 3, when the microwave module is IN a receiving state, the input IN is a small signal, wherein the attenuation circuit reduces the signal by 6dBm and inputs the signal to the amplitude limiting circuit, the signal enters the switch circuit after the loss of the amplitude limiting circuit, and then enters the amplifying circuit after passing through the filter circuit, and the amplifying circuit amplifies the signal and outputs the required power.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A limit switch filtering assembly, comprising: including decay circuit, decay circuit's one end is connected with the input, and the other end is connected with the amplitude limiting circuit input, amplitude limiting circuit's output is connected with switch circuit's one end, switch circuit's the other end is connected with filter circuit's input, filter circuit's output is connected with amplifier circuit's input.

2. A limit switch filter assembly as claimed in claim 1, wherein: the attenuation circuit is an attenuator with the model number HA06C050 SIMK.

3. A limit switch filter assembly as claimed in claim 1, wherein: the amplitude limiting circuit comprises a capacitor C1, one end of the capacitor C1 is connected with the output end of the attenuation circuit, the other end of the capacitor C1 is connected with one end of an inductor L1 and the anode of a diode V1, the other end of the inductor L1 and the cathode of a diode V1 are both grounded, the anode of a diode V1 is further connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of a diode V2, a diode V3, a diode V4, a diode V5, the anode of a diode V6, the cathode of a diode V7 and one end of a capacitor C3, the cathodes of the diode V2, the diode V3, the diode V4, the diode V5 and the diode V6 are all grounded, the anode of the diode V7 is grounded, and the other end of the capacitor C3 is connected with the switch circuit.

4. A limit switch filter assembly as claimed in claim 1, wherein: the switch circuit is composed of switch chips NC 16165-112.

5. A limit switch filter assembly as claimed in claim 1, wherein: the filter circuit consists of a patch LC filter HF 2.7.

6. A limit switch filter assembly as claimed in claim 1, wherein: the amplification circuit consists of a low noise amplifier chip HMC 462.