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학술대회
3-bit digital phase shifter for mobile DBS active phased array antenna system application
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- 발행일
- 200005
- 출처
- International Conference on Phased Array Systems and Technology (PAST) 2000, pp.85-88
- 협약과제
- 99DR1200, 통신용 광대역 적응형 안테나 기술개발, 오덕길
- 초록
- In this paper, the 3-bit digital pin diode phase shifter of the hybrid-coupled reflection type is designed and fabricated for the mobile DBS application of an active phased array antenna system. Its fractional bandwidth is about 17% (VSWR = 2:1). The theoretical considerations for the phase shifter design are briefly described. The experimental results for the fabricated 3-bit phase shifter such as the insertion loss and phase response, and its variations according to each phase state are presented, and also the overall insertion loss variations due to the forward current variations of each pin diode used in the phase shifter are given and the discussion about those results will be made in the system application aspect.
- KSP 제안 키워드
- Active Phased Array Antenna, Digital phase shifter, Forward current, Fractional Bandwidth(FBW), PIN Diode, Phased array antenna system, Reflection-type, Shifter design, System application, distributed antenna systems(DAS), insertion loss