Title :
Electronic beam-steering design for UWB phased array
Author :
Chia, Michael Yan-Wah ; Lim, Teck-Hwee ; Yin, Jee-Khoi ; Chee, Piew-Yong ; Leong, Siew-Weng ; Sim, Chan-Kuen
Author_Institution :
Inst. for Infocomm Res., Singapore
fDate :
6/1/2006 12:00:00 AM
Abstract :
A novel electronic beam-steering subsystem providing true time-delay technique has been developed for an ultra-wideband (UWB) phased array. The relative time delay for phase interpolation is variable from 100 to 500 ps. Scanned angles from 9deg to 59deg were achieved. The chip is designed using 0.25-mum CMOS silicon operating at 2.5 V, and its outputs are matched to 50 Omega loads using bipolar buffers. The design of the beam-steering architecture will be presented. The measured results of the chip and the UWB phased array, including radiation patterns and pulse-width distortions, will be discussed
Keywords :
antenna phased arrays; antenna theory; beam steering; ultra wideband technology; 0.25 micron; 2.5 V; 50 ohm; CMOS; Si; UWB phased array; bipolar buffers; electronic beam steering design; pulse width distortions; radiation patterns; time-delay technique; Delay effects; Distortion measurement; Impedance matching; Interpolation; Phase measurement; Phased arrays; Pulse measurements; Semiconductor device measurement; Silicon; Ultra wideband technology; Beam steering; BiCMOS; CMOS; phased array; ultra-wideband (UWB);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2006.875300
