Title:
MICROSTRIP SWITCH TYPE PHASE SHIFTER AND PHASE SHIFT MODULE ADOPTING SAME
Document Type and Number:
WIPO Patent Application WO/2017/091944
Kind Code:
A1
Abstract:
Provided are a microstrip switch type phase shifter and a phase shift module adopting same. The microstrip switch type phase shifter comprises: a reference branch circuit, a phase shift branch circuit, a first path selection switch and a second path selection switch, wherein the reference branch circuit comprises a first microstrip transmission line; the phase shift branch circuit comprises a second microstrip transmission line and a third microstrip transmission line which are connected in series, and a fourth microstrip transmission line connected between a node between the second and third microstrip transmission lines and a ground level; and a front end of the first path selection switch is connected to a signal input end, a rear end of the second path selection switch is connected to a signal output end, and the two are simultaneously connected to the reference branch circuit and the phase shift branch circuit under control. In the present invention, continuous microstrip lines and a simple topology structure are adopted, and parasitic parameters caused by discontinuity of microstrip lines are reduced. The present invention can be applied to a high-frequency scenario, and at the same time, upon simulation and experiment, it is proved that the phase shifter has a very flat phase shifting characteristic nearby a central frequency and the phase shift precision is high.
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Inventors:
LI ZHIQIANG (CN)
HUANG JIANOU (CN)
ZHANG HAIYING (CN)
HUANG JIANOU (CN)
ZHANG HAIYING (CN)
Application Number:
PCT/CN2015/095983
Publication Date:
June 08, 2017
Filing Date:
November 30, 2015
Export Citation:
Assignee:
INST OF MICROELECTRONICS CAS (CN)
International Classes:
H01P1/18
Domestic Patent References:
| WO2006130795A2 | 2006-12-07 |
Foreign References:
| CN105356014A | 2016-02-24 | |||
| CN103947037A | 2014-07-23 | |||
| CN101141018A | 2008-03-12 | |||
| CN104201441A | 2014-12-10 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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