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Waveguide magic T structure

A waveguide magic and waveguide technology, applied in the field of radio frequency and microwave, to achieve the effect of facilitating connection and system integration, improving isolation and standing waves of ports, and reducing the imbalance between channels

Active Publication Date: 2018-12-25
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a waveguide magic T structure, to solve at least one problem existing in the existing waveguide magic T structure

Method used

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Embodiment Construction

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention relates to the radio frequency microwave field, in particular to a waveguide magic T structure. The waveguide magic T structure comprises a waveguide cavity; a metal separator which divides a part of the waveguide cavity into upper and lower reduced waveguides with a metal groove formed therein; a microstrip circuit cavity located on one side of the waveguide cavity and provided withwaveguide sidewall openings at positions adapted to the waveguide cavity; a dielectric substrate of a microstrip circuit parallel to the metal separator, a microstrip line being arranged on the frontside, and a groove line being arranged on the reverse side and connected with the metal groove; a load resistor connected to microstrip line. The waveguide magic T structure of the invention improvesthe isolation of the input port and the standing wave of the port of a synthesizer compared with the waveguide T-joint, facilitates the connection between modules and the system integration, and reduces the instability of the system caused by the unbalance between the paths or even the damage of one path during the integration of the multiple paths of the system. In addition, compared with the conventional waveguide magic T, the waveguide magic T structure realizes miniaturization by adopting a folded waveguide.

Description

technical field [0001] The invention relates to the field of radio frequency microwaves, in particular to a waveguide magic T structure. Background technique [0002] The waveguide structure power divider is widely used in the high frequency band due to its characteristics of small insertion loss, high power capacity, and good performance. There are also many structures for the design of waveguide power dividers, the most typical of which are various E-plane or H-plane branch structures. This power distribution structure is simple and easy to implement in engineering design, but the isolation between output ports is poor. Theoretically only 6dB. The poor isolation between the output ports will cause mutual interference and affect the performance of the power divider. The Waveguide Magic T is a four-port network with its own isolated ports. When used as a power combiner, each port can be matched at the same time. Therefore, it is widely used in microwave circuits. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/20
CPCH01P5/20
Inventor 王朝阳徐暑晨赵蒙
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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