TY - GEN
T1 - 3-to-5GHz 4-channel UWB beamforming transmitter with 1° phase resolution through calibrated vernier delay line in 0.13μm CMOS
AU - Wang, Lei
AU - Guo, Yong Xin
AU - Lian, Yong
AU - Heng, Chun Huat
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2012
Y1 - 2012
N2 - Narrow-band phased-array transmitters provide an efficient way of obtaining higher power through spatial combining and achieving higher transmitter EIRP. They also provide beamforming and beam-steering capabilities [1]. However, the commonly used phase shifter or LO phase-shifting techniques at RF become less attractive for 3-to-5GHz UWB due to their lossy, bulky and narrowband characteristics. On the other hand, True-Time-Delay (TTD)-based beamforming transmitters employed at baseband have been popularly adopted due to UWB's inherent digitally intensive nature [2]. However owing to the limited achievable delay resolution and delay accuracy, the reported phase resolution is normally limited to 10°. 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. © 2012 IEEE.
AB - Narrow-band phased-array transmitters provide an efficient way of obtaining higher power through spatial combining and achieving higher transmitter EIRP. They also provide beamforming and beam-steering capabilities [1]. However, the commonly used phase shifter or LO phase-shifting techniques at RF become less attractive for 3-to-5GHz UWB due to their lossy, bulky and narrowband characteristics. On the other hand, True-Time-Delay (TTD)-based beamforming transmitters employed at baseband have been popularly adopted due to UWB's inherent digitally intensive nature [2]. However owing to the limited achievable delay resolution and delay accuracy, the reported phase resolution is normally limited to 10°. 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. © 2012 IEEE.
UR - https://www.scopus.com/pages/publications/84860674507
UR - https://www.scopus.com/pages/publications/84860674507#tab=impact
U2 - 10.1109/ISSCC.2012.6177083
DO - 10.1109/ISSCC.2012.6177083
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781467303736
VL - 55
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 444
EP - 445
BT - 2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers
T2 - 59th International Solid-State Circuits Conference, ISSCC 2012
Y2 - 19 February 2012 through 23 February 2012
ER -