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Overlapped Subarray Architecture of an Wideband Phased Array Antenna with Interference Suppression Capability
Department of Electronics and Communication Engineering, University Institute of Technology, University of Burdwan, Burdwan, India
Tata Consultancy Services, Kolkata, India
Department of Electronics and Telecommunication Engineering, Jadavpur University, Kolkata, India
- 1 Department of Electronics and Communication Engineering, University Institute of Technology, University of Burdwan, Burdwan, India
- 2 Tata Consultancy Services, Kolkata, India
- 3 Department of Electronics and Telecommunication Engineering, Jadavpur University, Kolkata, India
Journal of Electromagnetic Analysis and Applications·Volume 05 (2013)·Pages 201–204·Published 20 May 2013·DOI10.4236/jemaa.2013.55032
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Abstract
This paper presents a novel architecture of combining the linear array of antenna elements, where each antenna element has digitally selectable true time-delays as weights. Use of time-delays for beam-formation inherently makes the phased array network a wideband system. In particular, this technique envisage a new method of sharing antenna elements, by fixed overlapped sub-array architecture, which is able to maintain permissible element spacing to avoid grating lobe in antenna pattern. Moreover, this scheme additionally offers an easier null steering capability to the subarray architecture. This method essentially eliminates the need for intensive computation of complex weight vectors attached to each antenna element.
KeywordsPhased ArraySubarrayTime-DelayOverlapped Array
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