Title :
A 1.44mm2 4-channel UWB beamforming receiver with Q-compensation in 65nm CMOS
Author :
Lei Wang ; Yong Lian ; Chun-Huat Heng
Author_Institution :
Dept. of ECE, Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
A compact 4-channel UWB beamforming receiver is proposed by employing low-Q LC delay with Q-compensation technique. The delay chain achieves 224 ps delay range with 7 ps delay resolution. It occupies area of 1.44 mm2, which is 7 times smaller than other UWB beamformer with LC delay. To compensate the losses generated by low Q inductors and minimize the power consumption, current reuse LNA and buffers are adopted. The receiver covers scanning angle of ±48o with spatial resolution of 4o under antenna spacing of 3 cm while consuming 288 mW.
Keywords :
CMOS integrated circuits; array signal processing; buffer circuits; low noise amplifiers; power consumption; radio receivers; ultra wideband technology; CMOS; LC delay; LNA; Q-compensation; UWB beamformer; UWB beamforming receiver; buffers; low noise amplifiers; power 288 mW; power consumption; size 65 nm; time 224 ps; time 7 ps; Array signal processing; Delays; Inductors; Receivers; Spatial resolution; Transmitters; Ultra wideband technology; UWB beamforming receiver; current reuse LNA; current reuse buffer; noise cancelling LNA; wideband phase shifter;
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2014 IEEE Asian
Conference_Location :
KaoHsiung
Print_ISBN :
978-1-4799-4090-5
DOI :
10.1109/ASSCC.2014.7008908
