Title:
VARIABLE CAPACITOR, REFLECTIVE PHASE SHIFTER, AND SEMICONDUCTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/035752
Kind Code:
A1
Abstract:
The present application relates to the technical field of electronics, and disclosed therein are a variable capacitor, a reflective phase shifter, and a semiconductor device, which are used to solve the problem in which the capacitance of a variable capacitor is sensitive to PVT variations. The variable capacitor comprises: a first comb structure and a first set of interdigital structures, the first comb structure comprising a plurality of comb teeth, the first set of interdigital structures comprising at least one interdigital structure, and the interdigital structure(s) in the first set of interdigital structures being provided between at least two comb teeth of the first comb structure and having no electrical contact; a second comb structure and a second set of interdigital structures, the second comb structure comprising a plurality of comb teeth, the second set of interdigital structures comprising at least one interdigital structure, and the interdigital structure(s) in the second set of interdigital structures being provided between at least two comb teeth of the first comb structure and having no electrical contact; and a switch for controlling whether there is electrical contact between at least one interdigital structure in the first set of interdigital structures and at least one interdigital structure in the second set of interdigital structures. The first comb structure, the first set of interdigital structures, the second comb structure, and the second set of interdigital structures are all made of a conductive material.
Inventors:
WANG SHUO (CN)
PENG RONG (CN)
PENG RONG (CN)
Application Number:
PCT/CN2019/103882
Publication Date:
March 04, 2021
Filing Date:
August 30, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01G5/38
Foreign References:
| CN101127513A | 2008-02-20 | |||
| US5880921A | 1999-03-09 | |||
| CN101030666A | 2007-09-05 |
Other References:
See also references of EP 4016567A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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