← 返回 JSSC 论文列表JSSC 2012第12期RF & Wireless0.13μmPhased Array
35 GHz 4-Channel UWB Beamforming Transmitter With 1 Scanning Resolution Through
一款3-5 GHz 4通道超宽带波束成形发射器，具有1°扫描分辨率和135°扫描范围。
0.13μm CMOS, 7.2mm², 9.6mW@80Mbps, 10pJ/bit, 7.5%效率
超宽带波束成形Vernier延迟线DLL校准FCC规范
▸采用Vernier延迟线实现10 ps精细分辨率
▸DLL校准技术加速校准48倍
▸新型功率谱密度校准电路满足FCC规范
Abstract
A 3–5 GHz 4-channel UWB beamforming transmitter
with 1 scanning resolution and 135 scanning range is presented
in this paper. The fine resolution is attained through Vernier
delay lines capable of fine resolution down to 10 ps. Accurate path
delay across channels as well as UWB pulse center frequency are
achieved through the proposed
DLL calibration technique,
which speeds up the calibration by 48 times compared with a
counter-based approach. A novel p ower spectral density calibra-
tion circuit i