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A broadband conversion structure from microstrip line to rectangular waveguide

A rectangular waveguide and conversion structure technology, applied in the field of millimeter waves, can solve the problems of insufficient bandwidth, complex ridge waveguide transition processing, and poor assembly, etc., and achieve the effects of compact structure, improved mode conversion efficiency, and expanded impedance bandwidth

Active Publication Date: 2022-02-18
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The waveguide-microstrip transition conversion structures mainly include stepped ridge waveguide transition, ridge-to-fin line transition, and coupling probe transition. Among them, the ridge waveguide transition is complicated to process and difficult to assemble, and other transition structures have the disadvantage of insufficient bandwidth.

Method used

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  • A broadband conversion structure from microstrip line to rectangular waveguide
  • A broadband conversion structure from microstrip line to rectangular waveguide
  • A broadband conversion structure from microstrip line to rectangular waveguide

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Embodiment Construction

[0036] The present invention is further analyzed below in conjunction with specific examples.

[0037] Such as figure 1 , 2 , 3, the broadband conversion structure from the microstrip line to the waveguide includes a microstrip dipole and a rectangular waveguide Rw; the rectangular waveguide is a rectangular groove in a rectangular metal block, the terminal is a short-circuit surface, and a hole is opened on the short-circuit surface. The hole communicates with the rectangular waveguide; the microstrip dipole is inserted from the opening of the short-circuit surface of the rectangular waveguide, and placed in the center of the long side of the rectangular waveguide.

[0038] The microstrip dipole structure is stacked with three layers of dielectric substrates, including the upper arm 3 of the microstrip dipole, the lower arm 6 of the microstrip dipole, and the first metallized through hole V 1 , two rows of the second metallized via array V 2 , the microstrip dipole folding...

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Abstract

The invention discloses a broadband conversion structure from a microstrip line to a rectangular waveguide. The conversion structure uses a microstrip dipole excitation scheme, uses metallized through holes to fold the single arm of the microstrip dipole, and the folded The dipole structure is more compact and can excite the dielectric resonator modes of the dielectric substrate. By reasonably setting the position of the metallized through hole, the width of the dielectric substrate and the length of the dipole, the folded dipole structure can work in the half-wave dipole mode and the dielectric resonator mode at the same time, realizing the microstrip line to the rectangular waveguide broadband transfer.

Description

technical field [0001] The invention belongs to the technical field of millimeter waves and relates to a broadband conversion structure from a microstrip line to a rectangular waveguide, which can be used in a circuit system with a transition structure from a microstrip to a rectangular waveguide. Background technique [0002] With the rapid development of millimeter wave and terahertz science and technology, the demand for various millimeter wave and terahertz integrated circuits is increasing day by day. Microstrip line is an important transmission line in millimeter wave and terahertz integrated circuits, and each monolithic microwave integrated circuit (MMIC) is mainly connected by microstrip line. However, most of the interfaces between millimeter-wave and terahertz test systems and many instruments, as well as the connections between various millimeter-wave and terahertz integrated systems, use waveguides with less loss. In order to match these two transmission lines ...

Claims

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Application Information

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IPC IPC(8): H01P5/08
CPCH01P5/08
Inventor 范奎奎谭青权罗国清
Owner HANGZHOU DIANZI UNIV
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