Title:
RADIO-FREQUENCY PHASE INVERTER, TRANSMISSION LINE PHASE SHIFTER, SYSTEM, CHIP AND RADAR SENSOR
Document Type and Number:
WIPO Patent Application WO/2024/065633
Kind Code:
A1
Abstract:
Provided in the present application are a radio-frequency phase inverter, a transmission line phase shifter, a system, a chip and a radar sensor. The radio-frequency phase inverter comprises an inductance circuit and a first phase adjustment circuit, which are symmetrically arranged with respect to the same axis of symmetry, wherein the inductance circuit comprises a single-ended signal interface and a differential signal interface; and the first phase adjustment circuit comprises two controlled switches, each controlled switch being connected between a ground line and a ground end in the single-ended signal interface, such that the inductance circuit performs in-phase or out-of-phase shift on a received radio frequency signal. In this way, a circuit structure, which is in a completely symmetrical layout, is provided, thereby effectively reducing phase errors during in-phase and out-of-phase shift.
Inventors:
LIU TAO (CN)
LIU ZHENGDONG (CN)
ZHOU WENTING (CN)
CHEN JIASHU (CN)
LIU ZHENGDONG (CN)
ZHOU WENTING (CN)
CHEN JIASHU (CN)
Application Number:
PCT/CN2022/123131
Publication Date:
April 04, 2024
Filing Date:
September 30, 2022
Export Citation:
Assignee:
CALTERAH SEMICONDUCTOR TECH SHANGHAI CO LTD (CN)
International Classes:
G01S13/58; H01P1/18; H03K19/094
Foreign References:
| CN103066940A | 2013-04-24 | |||
| CN1747307A | 2006-03-15 | |||
| CN1525632A | 2004-09-01 | |||
| CN104247278A | 2014-12-24 |
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
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