Title:
PHASE SHIFT SYSTEM, RADIO-FREQUENCY CHIP AND RADAR SENSOR
Document Type and Number:
WIPO Patent Application WO/2024/065630
Kind Code:
A1
Abstract:
Provided in the present application are a phase shift system, a chip and a radar sensor. The phase shift system comprises at least two cascaded transmission-line phase shift units, wherein each transmission-line phase shift unit is controlled by at least one phase shift control signal, such that the transmission-line phase shift unit performs a phase shift on a radio-frequency signal according to a first phase or a second phase; each transmission-line phase shift unit at least comprises a plurality of groups of transmission lines; and at least some transmission lines in respective first groups of transmission lines in the two cascaded transmission-line phase shift units are physically isolated from each other and are connected by means of respective second groups of transmission lines. The phase shift system is used for solving the problem of a phase shift linearity being reduced due to a transmission path of a transmission-line phase shifter being relatively long.
More Like This:
| WO/2022/141023 | SUSPENSION STRIP, PHASE SHIFTER, AND BASE STATION |
| JPH05160615 | POLYPHASE DIVIDER/SYNTHESIZER |
Inventors:
LIU TAO (CN)
CHEN JIASHU (CN)
LIU ZHENGDONG (CN)
ZHOU WENTING (CN)
CHEN JIASHU (CN)
LIU ZHENGDONG (CN)
ZHOU WENTING (CN)
Application Number:
PCT/CN2022/123127
Publication Date:
April 04, 2024
Filing Date:
September 30, 2022
Export Citation:
Assignee:
CALTERAH SEMICONDUCTOR TECH SHANGHAI CO LTD (CN)
International Classes:
H01P1/18; G01S13/02; H03H11/16; H04L25/08
Foreign References:
| TWI663842B | 2019-06-21 | |||
| TW201131881A | 2011-09-16 | |||
| CN109616723A | 2019-04-12 | |||
| CN102099957A | 2011-06-15 |
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
Download PDF: