CN217693352U

CN217693352U - Coupling detection system for detecting radio frequency power value of equipment

Info

Publication number: CN217693352U
Application number: CN202221727736.5U
Authority: CN
Inventors: 高净; 杨宁
Original assignee: Shijiazhuang Yuxun Electronics Co ltd
Current assignee: Shijiazhuang Yuxun Electronics Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-10-28
Anticipated expiration: 2032-07-05

Abstract

The utility model relates to a coupling detection system for check out test set radio frequency power value, the microstrip line coupler of buildding including the microstrip line and utilizing the microstrip line. The coupler is integrated on the circuit board, so that the cost is reduced, the complexity of the circuit is reduced, and the stability of the equipment is improved.

Description

Coupling detection system for detecting radio frequency power value of equipment

Technical Field

The utility model relates to a coupling detection system for check out test set radio frequency power value.

Background

The current radio frequency coupling detection method basically adopts the radio frequency signal to enter the detector after being coupled by the integrated coupler, and finally uploads the power value detected by the detector to the control chip to achieve the functions of reading and reporting.

Accurate power value detection can enable a user to know the current working state of equipment, and the power value detection plays a significant role in power control, particularly in protection of an amplifier and supporting equipment. Accurate power detection value requires good control and regulation of coupler coupling amount.

The different radio frequency detection power values have different requirements on the coupling quantity of the radio frequency coupler, the coupling quantity can be realized by adjusting the coupler at present, but some structural parts such as holes or screws which need to be adjusted are inevitably formed, the structural parts are complex and cannot be integrated on a printed board, and thus the cost is increased; some circuits need to be realized by adding a resistor, a capacitor or an inductor to form a tuning circuit, additional power supply is needed, and the circuit complexity is obviously increased.

The conventional document CN112034224a is a coupled detector, which comprises a coupling cavity and a detection cavity; a main conduction band is arranged on the dielectric substrate positioned on one side of the coupling cavity, a first coupling band and a second coupling band are arranged on two sides of the main conduction band, the first coupling band and the second coupling band form a coupling circuit, and the first coupling band is electrically connected with the detection circuit through an insulator; the radio frequency signal is input from a radio frequency input end of the main conduction band, and most of the radio frequency signal is output from a radio frequency output end of the main conduction band; the first coupling band and the second coupling band are respectively coupled from the main guide band to obtain coupling signals, the coupling signals of the first coupling band are input into the detection circuit, and the detection circuit detects the coupling signals and outputs a detection level; one end of the second coupling strip is grounded through the load resistor, the other end of the second coupling strip is connected with the coupling output port, and the coupling signal of the second coupling strip is output through the coupling output port. The coupling detector provided by the invention has the advantages of wide bandwidth, strong directivity and high bearing power, and overcomes the defects of the prior art.

The conventional document CN106353589a is a coupling detector, which includes a reverse power coupler, a forward power coupler, a reverse detection diode circuit, and a forward detection diode circuit; the reverse power coupler and the forward power coupler are both connected with a load to be tested and are used for measuring forward power data and reverse power data of the load to be tested; the reverse power coupler is connected with the reverse detection diode, and the forward power coupler is connected with the forward detection diode and used for detecting the forward power data and the reverse power data and outputting the processed data. The coupling detector adopts a double-coupling technology, and each coupling port is connected with the corresponding detection diode circuit, so that when the dynamic range of the measured power is large, the minimum insertion loss can be ensured, signals coupled to the detection diodes during the measurement of small power are measured very weakly, and the measurement precision is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a coupling detection system for check out test set radio frequency power value that low cost and easily be compatible with other circuits is provided.

The utility model adopts the following technical scheme:

the utility model discloses a microstrip line and utilize the microstrip line coupler that the microstrip line was built.

The microstrip line of the utility model includes impedance match and microstrip line length.

Impedance match includes the microstrip line linewidth, the microstrip line linewidth designs according to the requirement of equipment radio frequency and radio frequency detection power value.

Impedance match still includes microstrip line copper sheet thickness, microstrip line copper sheet thickness designs according to the requirement of equipment radio frequency and radio frequency detection power value.

Microstrip line length designs according to the requirement of equipment radio frequency and radio frequency detection power value.

Microstrip line coupler sets up the radio frequency front end module into equipment.

Microstrip line coupler carries out direct wiring on the circuit board.

The utility model discloses positive effect as follows:

the utility model discloses the radio frequency coupling passes through the design method of microstrip line coupling, and the index demand of equipment is satisfied to the precision of improvement radio frequency coupling power value that like this can be fine. The consistency and the accuracy of the radio frequency coupling power value directly influence the consistency and the accuracy of the coupled detection reported power value. The microstrip line coupler ensures the consistency of the coupling power value by controlling the consistency of the drawn circuit board layout, and the consistency of the PCB software drawing is very high, so that the consistency of the coupling power value can be well controlled; the accuracy of the coupling power value is guaranteed by controlling the accuracy of drawing the circuit layout, the accuracy of drawing the PCB software is high, and the accuracy of the coupling power value can be well controlled. Therefore, the function of radio frequency detection reporting is achieved through radio frequency coupling, and the method is not limited by a single design method of an integrated coupler.

The utility model discloses a microstrip line coupler not only can realize the function of radio frequency coupling to have low cost, easily with other advantages such as circuit compatibility. The microstrip line coupler is applied to radio frequency equipment, can well improve the accuracy of a radio frequency coupling power value, meets the index requirements of the equipment, and achieves the aim of flexible application. The coupler is integrated on the circuit board, so that the cost is reduced, the complexity of the circuit is reduced, and the stability of the equipment is improved.

Drawings

FIG. 1 is a schematic diagram of a microstrip line coupler according to the present invention;

FIG. 2 is an explanatory view of the present invention;

fig. 3 is a microstrip line topology diagram of the present invention;

fig. 4 is the impedance matching topology of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

In fig. 1, port1 and Port2 are direct normal signals of the radio frequency microstrip line, port3 and Port4 are coupling ends of the radio frequency microstrip line coupler, and index requirements of different devices on radio frequency coupling power values are realized by adjusting the length of the microstrip line, the line width of the microstrip line and the thickness of the copper sheet of the microstrip line of Port3 and Port 4.

Example 1

As shown in fig. 1-4, the present invention includes a microstrip line and a microstrip line coupler constructed by using the microstrip line.

Example 2

As shown in fig. 1-4, based on embodiment 1, the microstrip line coupler of the present invention is configured as a radio frequency front end module of a device.

Example 3

As shown in fig. 1 to 4, based on embodiments 1 and 2, the microstrip line coupler of the present invention performs direct wiring on a circuit board.

At present, the technical scheme of the application has been subjected to a pilot plant test, namely a small-scale experiment before large-scale mass production of equipment; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of equipment for formal commissioning for industrialization (including intellectual property risk early warning research) has been set forth.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A coupled detection system for detecting a radio frequency power level of a device, comprising: comprises a microstrip line and a microstrip line coupler built by the microstrip line.

2. The coupling detection system according to claim 1, wherein the coupling detection system is configured to detect a radio frequency power value of the device, and further comprises: the microstrip line includes an impedance match and a microstrip line length.

3. A coupled detection system for detecting a device rf power value according to claim 2, wherein: the impedance matching comprises the line width of a microstrip line, and the line width of the microstrip line is designed according to the requirements of the radio frequency and the radio frequency detection power value of the equipment.

4. A coupled detection system for detecting a device rf power value according to claim 3, wherein: the impedance matching device further comprises a microstrip line copper sheet, and the thickness of the microstrip line copper sheet is designed according to the requirements of the radio frequency and the radio frequency detection power value of the device.

5. The coupling detection system according to claim 4, wherein the coupling detection system is used for detecting the radio frequency power value of the equipment, and comprises: the microstrip line length is designed according to the requirements of the radio frequency and the radio frequency detection power value of the equipment.

6. The coupling detection system according to claim 5, wherein the coupling detection system is configured to detect the radio frequency power value of the device, and further comprises: the microstrip line coupler is configured as a radio frequency front end module of the device.

7. The coupling detection system according to claim 6, wherein the coupling detection system is configured to detect the radio frequency power value of the device, and further comprises: the microstrip-line coupler is directly wired on a circuit board.