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Patent Searching and Data


Title:
CAVITY-TYPE PHASE SHIFTER
Document Type and Number:
WIPO Patent Application WO/2021/036779
Kind Code:
A1
Abstract:
Provided is a cavity-type phase shifter, comprising a cavity and a radio-frequency circuit board arranged in the cavity, wherein the cavity has multiple packaging walls, at least one of the packaging walls parallel to the surface of the radio-frequency circuit board is provided with at least one wiring groove, and the wiring groove is provided with an operation hole for the welding of a core wire of a transmission cable; and the transmission cable is arranged along the wiring groove, passes through the operation hole in the wiring groove, and is welded and connected to the radio-frequency circuit board. According to the present invention, the wiring grooves are arranged in the packaging walls parallel to the radio-frequency circuit board, the multiple wiring grooves are arranged in different packaging walls, and the operation of soldering connection between an inner conductor of the transmission cable and a radio-frequency circuit board through the operation holes is allowed to be performed only after the soldering connection between an outer conductor of the transmission cable and the wiring grooves of the cavity, so as to prevent the influence, which leads to thermal deformation, of a high temperature on a sliding medium during the soldering of the outer conductor of the transmission cable to ensure the reliable phase adjustment function of the phase shifter. The phase shifter has reduced size, and is lighter and lower in cost.

Inventors:
WU BIQUN (CN)
ZHANG PENG (CN)
SUN DAN (CN)
Application Number:
PCT/CN2020/108405
Publication Date:
March 04, 2021
Filing Date:
August 11, 2020
Export Citation:
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Assignee:
GUANGDONG BROADRADIO COMMUNICATION TECH CO LTD (CN)
International Classes:
H01P1/18; H01P1/207; H01P1/213; H01Q3/32; H01R4/02; H01R11/11
Foreign References:
CN106972271A2017-07-21
CN108232379A2018-06-29
CN207852872U2018-09-11
CN209150276U2019-07-23
CN109755694A2019-05-14
US20110050534A12011-03-03
Attorney, Agent or Firm:
GUANGZHOU KINGNUO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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