A resonant cavity for cumulative reception of sine wave signals and its working method

A technology of accumulating receiving and sine waves, applied in resonators, antennas suitable for movable objects, waveguide-type devices, etc., can solve problems such as time-domain vacancies, and achieve the effect of solving receiving problems, improving amplitude and compact structure

Active Publication Date: 2021-03-02
XI AN JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This resonant accumulation receiving cavity has a simple and compact structure, which solves the problem of gaps in the time domain of existing solutions

Method used

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  • A resonant cavity for cumulative reception of sine wave signals and its working method
  • A resonant cavity for cumulative reception of sine wave signals and its working method
  • A resonant cavity for cumulative reception of sine wave signals and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] This embodiment includes the following parts:

[0038] first part:

[0039] This embodiment is a resonant accumulative receiving cavity working at 1600MHz, including a cylindrical metal shell 1, a metal short-circuit terminal 2 at the top of the resonator cavity, a metal short-circuit terminal 3 at the bottom of the resonator cavity, an input structure 4, an output structure 5, and a dipole antenna 6 and switching device 13.

[0040] Among them: the length of the cylindrical metal shell 1 is L1, and the diameter is D1; ​​there is an output signal through hole 11 on the cylindrical metal shell 1 for the output signal, the output signal through hole 11 is a circular through hole, and the output signal through hole 11 The distance from the center position to the top of the cylindrical metal shell 1 is L3, and the diameter of the output signal through hole 11 is D4, which can be adjusted according to the size of different connectors;

[0041] The metal short-circuit end 2...

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Abstract

The invention discloses a resonant cavity used for accumulating and receiving sine wave signals and its working method. The coaxial inner core is arranged in the inner cavity of a cylindrical metal shell and connected to the center of the end face of one end of the cylindrical metal shell. The inner core of the cylindrical metal shell At least two L-shaped feeding parts are symmetrically arranged in the cavity with respect to the coaxial inner core, one end of the L-shaped feeding part is connected to the end of the coaxial inner core, and the other end of the L-shaped feeding part runs through the cylindrical metal shell and connects with the The end face of the coaxial inner core connection; the outside of the cylindrical metal shell is provided with a dipole antenna at the feed through hole, one arm of the dipole antenna is connected to the end of the L-shaped feed part, and the other end of the dipole antenna One arm is connected to the metal short-circuit end; the output probe is coaxially installed in the output signal through hole on the cylindrical metal shell, and one end of the output probe is vertically installed with a disc structure, and the other end is connected to a switching device. The invention can solve the problem of receiving weak radar signals from the time domain.

Description

technical field [0001] The invention belongs to the technical field of signal reception, and in particular relates to a resonance cavity for cumulative reception of sine wave signals and a working method thereof. Background technique [0002] Electromagnetic waves are widely used in the field of radar non-contact detection, but as the distance between the target to be measured and the radar transceiver antenna increases, the signal received by the receiving antenna is very weak, so it is necessary to solve the small signal amplification and reception problem of the radar detection system Questions are necessary. The current solution is mainly to use a high-gain transceiver antenna, which is a solution in the frequency domain. At the same time, high gain is often accompanied by a large size of the antenna, which limits the use of high-gain antennas. Contents of the invention [0003] In order to solve the problems existing in the prior art, the purpose of the present inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P7/06H01Q1/27H01Q1/50
CPCH01P7/06H01Q1/27H01Q1/50
Inventor 陈娟桑翔远罗曼葛薇张照彭正辉
Owner XI AN JIAOTONG UNIV
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