TY - GEN
T1 - A Broadband Reflection-Type Phase Shifter with Low Loss Variation Using Magic-T and Anti-Phase Reflection Loads
AU - Tamura, Jo
AU - Arai, Hiroyuki
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This paper presents a design of a broadband reflection-type phase shifter (RTPS) with a low insertion-loss variation. Unlike traditional RTPSs with a 90° hybrid coupler, the proposed one employs a Magic-T to enhance phase shifter performance. Additionally, anti-phase reflection loads are introduced, leading to compactness and broadband operation. The theoretical analysis reveals that the insertion loss is 0.4±0.3 dB in 50% fractional bandwidth, and the relative phase shift is 140°±10. The proposed RTPS is designed using a planar Magic-T, and the back-to-back configuration is tested for proof of concept. The results confirm the loss variation of less than 1.2 dB and the relative phase shift over 290° within 29% bandwidth.
AB - This paper presents a design of a broadband reflection-type phase shifter (RTPS) with a low insertion-loss variation. Unlike traditional RTPSs with a 90° hybrid coupler, the proposed one employs a Magic-T to enhance phase shifter performance. Additionally, anti-phase reflection loads are introduced, leading to compactness and broadband operation. The theoretical analysis reveals that the insertion loss is 0.4±0.3 dB in 50% fractional bandwidth, and the relative phase shift is 140°±10. The proposed RTPS is designed using a planar Magic-T, and the back-to-back configuration is tested for proof of concept. The results confirm the loss variation of less than 1.2 dB and the relative phase shift over 290° within 29% bandwidth.
KW - high-pass and low-pass phase shifters
KW - Magic-T
KW - reflection-type phase shifters
KW - Tunable phase shifters
UR - http://www.scopus.com/inward/record.url?scp=85168549023&partnerID=8YFLogxK
U2 - 10.1109/IMS37964.2023.10187909
DO - 10.1109/IMS37964.2023.10187909
M3 - Conference contribution
AN - SCOPUS:85168549023
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 1054
EP - 1057
BT - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Y2 - 11 June 2023 through 16 June 2023
ER -