CN219322363U

CN219322363U - Ultra-wideband frequency multiplier based on waveguide high-pass characteristic

Info

Publication number: CN219322363U
Application number: CN202220570534.8U
Authority: CN
Inventors: 葛君喆
Original assignee: Suzhou Fubo Electronic Technology Co ltd
Current assignee: Suzhou Fubo Electronic Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2023-07-07
Anticipated expiration: 2032-03-16

Abstract

The utility model relates to an ultra-wideband frequency multiplier based on waveguide high-pass characteristic, which comprises a step of performing multistage amplification treatment on microwave signals received at the front end through two cascade-designed power amplification chips, wherein the two cascade-designed power amplification chips are matched by adopting a waveguide transmission mechanism, and the waveguide transmission mechanism sequentially comprises a first microstrip probe, a waveguide and a second microwave probe. The utility model provides an ultra-wideband frequency multiplier based on waveguide high-pass characteristic realization, and provides a 27-45GHz frequency multiplier realization scheme which is low in cost, easy to process and assemble and has excellent noise performance.

Description

Ultra-wideband frequency multiplier based on waveguide high-pass characteristic

Technical Field

The utility model relates to the technical field of millimeter wave communication equipment and accessories used by the millimeter wave communication equipment, in particular to an ultra-wideband frequency multiplier based on waveguide high-pass characteristic realization, and specifically relates to a Ka-band frequency multiplier based on waveguide high-pass performance.

Background

In the fields of radar communication, radio astronomy, atmospheric remote sensing and the like, a millimeter wave sub-millimeter wave source with high reliability and stability is generally required, and the millimeter wave source is generally obtained in a direct oscillation generation mode and a step-by-step frequency multiplication mode. The millimeter wave source generated by direct oscillation has high output power, but the stability is not high. And the millimeter wave source with high stability, compact structure and low phase noise is easy to obtain through the frequency multiplication mode.

In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create an ultra-wideband frequency multiplier based on waveguide high-pass characteristics, which has a more industrial utility value.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide an ultra-wideband frequency multiplier based on waveguide high-pass characteristics.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an ultra-wideband frequency multiplier based on waveguide high-pass characteristic comprises a multistage amplification treatment of a microwave signal received at the front end through two cascade-designed power amplification chips, wherein the two cascade-designed power amplification chips are matched by adopting a waveguide transmission mechanism, and the waveguide transmission mechanism sequentially comprises a first microstrip probe, a waveguide and a second microwave probe; the front-end receives microwave signals, the microwave signals are subjected to primary amplification treatment through a primary power amplification chip and then transferred to a frequency multiplication chip, then the microwave signals are transferred from a microstrip to a waveguide through a first microstrip probe, then the microwave signals are transferred from the waveguide to the microstrip through a second microstrip probe, and finally the microwave signals are transferred to a secondary power amplification chip for secondary amplification treatment.

As a further improvement of the present utility model, the first microstrip probe and the second microwave probe are respectively disposed at both side positions of the waveguide.

As a further improvement of the present utility model, the waveguide is arranged along the Y-axis direction, the first microstrip probe is located on a side of the waveguide near the positive direction of the Y-axis, and the second microstrip probe is located on a side of the waveguide near the negative direction of the Y-axis.

As a further improvement of the present utility model, the first microstrip probe and the second microwave probe are each disposed along the X-axis direction.

As a further improvement of the utility model, the microwave signal is transmitted by waveguide microstrip probe transition technology.

As a further improvement of the present utility model, the waveguide is a Ka-band waveguide.

By means of the scheme, the utility model has at least the following advantages:

the utility model provides an ultra-wideband frequency multiplier based on waveguide high-pass characteristic realization, and provides a 27-45GHz frequency multiplier realization scheme which is low in cost, simple to process and assemble and has excellent noise performance;

the utility model has wide working frequency band and covers 27-45GHz;

the utility model has high in-band harmonic suppression.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an ultra wideband frequency multiplier based on waveguide high-pass characteristic implementation of the present utility model;

fig. 2 is a schematic structural view of the waveguide transmission mechanism in fig. 1.

In the drawings, the meaning of each reference numeral is as follows.

1. First microstrip probe 2 second microstrip probe

3. Waveguide

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In order to make the present utility model better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Examples

As shown in figures 1 to 2 of the drawings,

an ultra-wideband frequency multiplier based on waveguide high-pass characteristic comprises a multistage amplification treatment of a microwave signal received at the front end through two cascade-designed power amplification chips, wherein the two cascade-designed power amplification chips are matched by adopting a waveguide transmission mechanism, and the waveguide transmission mechanism sequentially comprises a first microstrip probe 1, a waveguide 3 and a second microwave probe 2; the microwave signal received by the front end is subjected to primary amplification treatment through the primary power amplification chip and then is transmitted to the frequency multiplication chip, then the microwave signal is transited from a microstrip to the waveguide 3 through the first microstrip probe 1, then the microwave signal is transited from the waveguide 3 to the microstrip through the second microstrip probe 2, and finally the microwave signal is transmitted to the secondary power amplification chip for secondary amplification treatment.

Preferably, the first microstrip probe 1 and the second microwave probe 2 are disposed at both side positions of the waveguide 3, respectively.

Preferably, the waveguide 3 is disposed along the Y-axis direction, the first microstrip probe 1 is located on a side of the waveguide 3 near the Y-axis positive direction, and the second microstrip probe 2 is located on a side of the waveguide 3 near the Y-axis negative direction.

Preferably, the first microstrip probe 1 and the second microwave probe 2 are both disposed along the X-axis direction.

Preferably, the microwave signal is transmitted by a waveguide microstrip probe transition technique.

Preferably, the waveguide 3 is a Ka-band waveguide.

The utility model aims to provide a new design method. The 27-45GHz tripler implementation scheme is low in cost, easy to process and assemble and has excellent noise performance.

The utility model is realized by adopting the following technical scheme: the microwave signal input from the front end passes through the first-stage power amplifying chip and then is multiplied by frequency, and the output signal has primary, secondary, fourth-time and other harmonic signals besides the primary signal, so that a filter is needed to inhibit the harmonic waves to ensure the purity of the signal; the first microstrip probe 1 is used for transferring signals from a microstrip to the waveguide 3, the high-pass characteristic of the waveguide 3 is utilized for inhibiting low-order harmonic signals, and then the second microstrip probe 2 is used for transferring signals from the waveguide 3 to the microstrip and transmitting the signals to the second-stage power amplification chip.

The utility model uses the high-pass characteristic of the waveguide, adopts a mode of 'microstrip probe-waveguide-microstrip probe' to replace a filter, and finally ensures the harmonic suppression index of the output signal.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 a relative importance or number of technical features being indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected: can be mechanically or electrically connected: the terms are used herein to denote any order or quantity, unless otherwise specified.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. The ultra-wideband frequency multiplier based on the waveguide high-pass characteristic is characterized by comprising a step of performing multistage amplification treatment on a microwave signal received at the front end through two cascade-designed power amplification chips, wherein the two cascade-designed power amplification chips are matched by adopting a waveguide transmission mechanism, and the waveguide transmission mechanism sequentially comprises a first microstrip probe (1), a waveguide (3) and a second microwave probe (2); the front-end received microwave signals are subjected to primary amplification treatment through a primary power amplification chip and then transferred to a frequency multiplication chip, then the microwave signals are transferred from a microstrip to a waveguide (3) through a first microstrip probe (1), then the microwave signals are transferred from the waveguide (3) to the microstrip through a second microstrip probe (2), and finally transferred to a secondary power amplification chip for secondary amplification treatment.

2. Ultra wideband frequency multiplier realized based on waveguide high-pass characteristics according to claim 1, characterized in that the first microstrip probe (1) and the second microwave probe (2) are respectively arranged at two sides of the waveguide (3).

3. An ultra wideband frequency multiplier based on waveguide high-pass characteristics according to claim 2, characterized in that the waveguide (3) is arranged along the Y-axis direction, the first microstrip probe (1) is located at a side of the waveguide (3) near the Y-axis positive direction, and the second microwave probe (2) is located at a side of the waveguide (3) near the Y-axis negative direction.

4. An ultra wideband frequency multiplier based on waveguide high-pass characteristic implementation according to claim 3, characterized in that the first microstrip probe (1) and the second microwave probe (2) are both arranged along the X-axis direction.

5. The ultra-wideband frequency multiplier based on waveguide high-pass characteristics according to claim 1, wherein said microwave signal is transmitted by waveguide microstrip probe transition technology.

6. An ultra wideband frequency multiplier based on waveguide high-pass characteristic implementation according to claim 1, characterized in that the waveguide (3) is a Ka-band waveguide.