상세정보
학술지
An S-Band Multifunction Chip with a Simple Interface for Active Phased Array Base Station Antennas
- 발행일
- 201306
- 출처
- ETRI Journal, v.35 no.3, pp.378-385
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 13PR2400, Ka대역 서비스 지역별 위성출력 제어기술 개발, 염인복
- 초록
- An S-band multifunction chip with a simple interface for an active phased array base station antenna for nextgeneration mobile communications is designed and fabricated using commercial 0.5-μm GaAs pHEMT technology. To reduce the cost of the module assembly and to reduce the number of chip interfaces for a compact transmit/receive module, a digital serial-to-parallel converter and an active bias circuit are integrated into the designed chip. The chip can be controlled and driven using only five interfaces. With 6-bit phase shifting and 6-bit attenuation, it provides a wideband performance employing a shunt-feedback technique for amplifiers. With a compact size of 16 mm2 (4 mm × 4 mm), the proposed chip exhibits a gain of 26 dB, a P1dB of 12 dBm, and a noise figure of 3.5 dB over a wide frequency range of 1.8 GHz to 3.2 GHz. © 2013 ETRI.
- KSP 제안 키워드
- Active bias, Compact size, GaAs pHemt, Noise Figure(NF), S-Band, Serial-to-parallel converter, Shunt Feedback, Transmit/Receive Module(TRM), Wideband performance, active phased array, base station(BS)