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IP명 Wide Band Cross-polarization Canceller for Dualpolarization MIMO and Polarization Control in 28-nm CMOS
Category Analog Application 5G Millimeter-wave IC
실설계면적 4㎛ X 4㎛ 공급 전압 1V
IP유형 Hard IP 동작속도 60GHz
검증단계 Silicon 참여공정 SS28-2302
IP개요 In this paper, millimeter-wave wide band crosspolarization canceler in a 28-nm CMOS process are explained.Dual-polarization transmission utilizes orthogonal polarization modes to support simultaneous independent data streams on each
two frequency channels, which doubles the effective channel capacity. The proposed cross-polarization canceller uses two receive chains with a single antenna, thus achieving 2x higher communication bits/symbol than a single-polarization receiver. At this transmission, cross-polarization effect limits the signal-to-noise
ratio of the dual-polarization transmission. To mitigate this effect, a cross-polarization canceller is presented. Also, cross-polarization canceller supports polarization control by changing phase and amplitude of each vertical- and horizontal-path. The dualpolarization canceller consists of two signal paths and two cancellation paths. Each path consists of phase shifter and variable gain amplifier. 60 GHz cross-polarization canceller is expected to achieve 30dB cross-polarization leakage cancellation to support 14.08 Gb/s throughput at 16-quadrature amplitude modulation of single-carrier signaling.
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