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- Title
다기능 투과배열 안테나 단위셀 소형화 설계를 위한 360° 반사형축소형 아날로그 위상 천이기 설계.
- Authors
황명하; 김경득; 이인곤; 김상길
- Abstract
This study compares the designs of one-stage and two-stage reflection-type phase shifters for miniaturized S-band multi-functional transmit-array antennas. Both phase shifters have areas smaller than 0.2 λ0×0.4 λ0, which is less than half of the conventional unit cell size of 0.5λ λ0×0.5 λ0, and both phase shifters have a phase shifting range of more than 360°. The one-stage phase shifter requires a miniaturized hybrid coupler, 1/4 wavelength transmission line, and additional elements to implement a wide phase shifting range; hence, the phase shifter has a non-uniform insertion loss distribution and a peak insertion loss of 4.3 dB. The two-stage phase shifter outperformed the one-stage phase shifter; it had a relatively uniform insertion loss distribution of 2.5 dB because of its simple circuit structure.
- Subjects
INSERTION loss (Telecommunication); UNIT cell; ELECTRIC lines; ANTENNAS (Electronics); CELL size; PHASE shifters
- Publication
Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji, 2023, Vol 34, Issue 2, p103
- ISSN
1226-3133
- Publication type
Article
- DOI
10.5515/KJKIEES.2023.34.2.103