BROWSE
Detail
Journal Article
An S-Band Multifunction Chip with a Simple Interface for Active Phased Array Base Station Antennas
- Authors
- Jin-Cheol Jeong, Donghwan Shin, Inkwon Ju, In-Bok Yom
- Issue Date
- 2013-06
- Citation
- ETRI Journal, v.35, no.3, pp.378-385
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Active bias, Base Station Antenna, Compact size, GaAs PHEMT, S-Band, Serial-to-parallel converter, Shunt Feedback, Transmit/Receive Module(TRM), Wide Frequency Range, Wideband performance, active phased array