Title :
True-Time-Delay-Based Multi-Beam Arrays
Author :
Ta-Shun Chu ; Hashemi, Hossein
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
A broadband true-time-delay-based multi-beam array architecture is presented in this paper that is applicable to 1-D and 2-D linear antenna arrays. A 1-D millimeter-wave multi-beam array receiver and a 2-D ultra-wide band multi-beam array receiver have been implemented in 0.13- μm SiGe and a 0.13- μm CMOS technology, respectively. The 1-D millimeter-wave multi-beam array receiver with six antennas and seven beams covers the entire 30-40-GHz instantaneous bandwidth, and achieves 18° spatial resolution and ±54° spatial coverage with 4-mm antenna spacing. The 2-D ultra-wideband multi-beam array receiver with 2 × 2 antennas and 7 × 7 beams covers the 3-15-GHz instantaneous bandwidth, and achieves 10° spatial resolution and ±30° spatial coverage in each dimension with 3-cm antenna spacing.
Keywords :
CMOS integrated circuits; Ge-Si alloys; delays; linear antenna arrays; millimetre wave antenna arrays; 1D millimeter-wave multibeam array receiver; 2D ultra-wide band multibeam array receiver; CMOS technology; SiGe; bandwidth 3 GHz to 15 GHz; bandwidth 30 GHz to 40 GHz; linear antenna arrays; size 0.13 mum; spatial coverage; spatial resolution; true-time-delay-based multibeam arrays; Antenna array; CMOS; SiGe HBT; beam-forming; phased array;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2013.2271119
