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mmWave embedded waveguide matching load

A matching load and embedded technology, applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problems of small adjustment margin, easy to be oxidized, and low reliability

Active Publication Date: 2021-08-20
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Low power; 2. Narrow working bandwidth and small adjustment margin; 3. Uneven stress on the absorber during the bonding and curing process, which makes the working frequency band shift, resulting in low production pass rate; 4. Short circuit board and absorber The adhesive joints of the body are prone to loosening or even falling off, and the reliability is low; 5. The tip of the wedge-shaped absorber is easily damaged, which affects product performance; 6. The absorber made of carbonyl iron material is easily oxidized in a humid environment. Microwave performance deteriorates

Method used

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  • mmWave embedded waveguide matching load
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  • mmWave embedded waveguide matching load

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Embodiment 1

[0027] Such as figure 1 As shown, the present invention provides a millimeter wave embedded waveguide matching load, which includes an absorber 1 and a short circuit board 2 made of carbonyl iron material. The absorber 1 includes a bottom slope 5 , the short circuit board 2 includes a boss 3 , and the bottom slope 5 and the boss 3 form a cavity 4 . The cross section of the absorber 1 is hexagonal, the top side of the hexagon is parallel to the bottom side, the left side is composed of an upper oblique line, a middle straight line and a lower oblique line, and the right side is a top to bottom oblique line; the top side The length is 0.5mm to 1.5mm, the length of the bottom is 1.5mm to 3mm, the height is 5.7mm to 6.3mm, the length of the straight line in the middle of the left side is 0.2mm to 1mm, and the angle between the hypotenuse on the right side and the vertical direction is 0° to 10°. The angle between the upper left hypotenuse and the vertical direction is 20°-30°, th...

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Abstract

The invention provides a millimeter-wave embedded waveguide matching load, which includes an absorber and a short circuit board. The absorber includes a bottom slope, and the short circuit board includes a boss. A cavity is formed by the bottom slope of the absorber and the boss of the short circuit board. Adjusting and fixing the shape of the cavity can adapt to different working frequency bands. The millimeter-wave embedded waveguide matching load provided by the present invention overcomes the defects of the existing waveguide matching load such as narrow working bandwidth, low power capacity, easy damage and corrosion at the top, easy change of the position and angle of the absorber after bonding and curing, and improves the efficiency of the millimeter wave. Microwave electrical performance, stability and reliability of microwave products.

Description

technical field [0001] The invention relates to the field of matching loads, in particular to a millimeter-wave embedded waveguide matching load with a cavity structure. Background technique [0002] With the development of millimeter-wave radar technology, the structure of the feed system is more compact, which puts forward higher requirements for the matching load used in the power division network. At present, the commonly used millimeter-wave matching load is composed of an absorber and a short-circuit board. The lower surface of the wedge-shaped absorber and the upper surface of the short-circuit board are connected as a whole by adhesive bonding. The absorber is made of silicon carbide or carbonyl iron. The millimeter wave matching load of this structure has the following disadvantages: [0003] 1. Low power; 2. Narrow working bandwidth and small adjustment margin; 3. Uneven stress on the absorber during the bonding and curing process, which makes the working frequenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/26
CPCH01P1/26
Inventor 潘继康王正庆
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA