Title :
3-to-5GHz 4-channel UWB beamforming transmitter with 1° phase resolution through calibrated vernier delay line in 0.13μm CMOS
Author :
Wang, Lei ; Guo, Yong Xin ; Lian, Yong ; Heng, Chun Huat
Author_Institution :
Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
This work introduces a 3-to-5GHz UWB beamforming system spanning from -45° to 90° phase range with 1 ° phase resolution. The fine delay resolution is achieved through a Vernier delay line without the need of advanced technology. The delay is calibrated with a ΔΣ DLL.
Keywords :
CMOS integrated circuits; array signal processing; delay lock loops; delays; radio transmitters; sigma-delta modulation; ultra wideband technology; ΔΣ delay lock loops; 4-channel UWB beamforming transmitter; CMOS technology; calibrated Vernier delay line; fine delay resolution; frequency 3 GHz to 5 GHz; phase resolution; Array signal processing; CMOS integrated circuits; Calibration; Delay; Radio transmitters; Solid state circuits;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2012 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4673-0376-7
DOI :
10.1109/ISSCC.2012.6177083
