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An ultra-wideband power distribution combiner based on ridge-gap waveguide technology

A power divider and power combiner technology, which is applied to waveguide-type devices, circuits, connecting devices, etc., can solve the problems of lack of impedance matching section design at power branches, and difficulty in applying bandwidth requirements to wireless communication systems.

Active Publication Date: 2021-07-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, although this structure utilizes the single-ridge waveguide to coaxial transition structure for power output, it lacks the design of the impedance matching section at the power branch, and only obtains a relative bandwidth of 14%.
Therefore, this structure is also difficult to apply to wireless communication systems with high bandwidth requirements

Method used

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  • An ultra-wideband power distribution combiner based on ridge-gap waveguide technology
  • An ultra-wideband power distribution combiner based on ridge-gap waveguide technology
  • An ultra-wideband power distribution combiner based on ridge-gap waveguide technology

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Embodiment Construction

[0032] The invention includes: standard coaxial waveguide, coaxial waveguide-ridge-gap waveguide transition structure, ridge-gap waveguide T-junction and inductive matching diaphragm, ridge-gap waveguide transition section including multi-level ladder impedance matching and right angle with matching diaphragm elbow;

[0033]When the ultra-broadband ridge-gap waveguide power divider / combiner is used as a power divider, the microwave signal is input from a standard 50-ohm coaxial waveguide in the form of a TEM mode, propagates forward through the coaxial waveguide-ridge-gap waveguide transition structure, and converts It is the quasi-TEM mode in the ridge-gap waveguide; the generated quasi-TEM mode divides the input signal into two channels with the same amplitude and phase through a specially designed T-junction, and then transmits the quasi-TEM mode to the output terminal through the stepped impedance transition section. Transition to standard coaxial waveguide TEM mode.

[0...

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Abstract

The invention discloses an ultra-broadband power divider based on ridge-gap waveguide technology, relates to the field of microwave / millimeter wave passive devices, and is specifically an ultra-broadband power divider / combiner based on novel ridge-gap waveguide technology. In order to overcome the shortcomings in the prior art, the operating bandwidth of the solid-state power amplifier is improved so that it can work effectively in several frequency bands, thereby saving design cost. The invention proposes an ultra-wideband ridge-gap waveguide power divider / combiner, which has the advantages of large power capacity, ultra-wideband (3 octaves), compact structure, low loss, good amplitude-phase consistency, and easy processing and assembly. .

Description

technical field [0001] The invention relates to the field of microwave / millimeter wave passive devices, in particular to an ultra-wideband power distribution / combiner realized based on novel ridge-gap waveguide technology. Background technique [0002] In recent years, microwave / millimeter-wave high-power, high-efficiency solid-state power amplifiers have been widely used in various wireless communication systems as an indispensable radio frequency module. However, limited by the current semiconductor technology level, the output power of a single power amplifier chip is very limited, and it is usually difficult to meet the high power output requirements of the system. In order to solve this problem, it is necessary to study power combining technology. [0003] Based on the microstrip line, the substrate integrated waveguide power divider has the characteristics of wide frequency band and easy processing in the low frequency band, and has high practical value. However, as ...

Claims

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Application Information

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IPC IPC(8): H01P5/12
CPCH01P5/12
Inventor 蒲友雷彭松涛吴泽威蒋伟王建勋罗勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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