1. A beam-steerer using reconfigurable PBG ground plane
- Author
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Jung-Chih Chiao, Iao-Mak Chio, B. Elamaran, and Liang-Yu Chen
- Subjects
Microstrip antenna ,Materials science ,Phased array ,business.industry ,Beam steering ,Phase (waves) ,Optoelectronics ,business ,Reduced cost ,Beam (structure) ,Photonic crystal ,Ground plane - Abstract
Phased arrays with reduced cost and increased power handling capability are important for commercial applications. In this paper, we demonstrate beam-steering arrays using reconfigurable periodic structures in the ground plane without solid-state phase shifters. A linearly discrete beam-steering of 35/spl deg/ in steps of approximately 6/spl deg/ has been achieved at a fixed frequency of 5.6 GHz. The main beam power varied less than 2 dB over the whole range of beam-steering. A frequency-dependent beam-steering of 15/spl deg/ is also achieved from 5 GHz to 6 GHz.
- Published
- 2002
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