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Novel Phased Array Scanning Employing A Single Feed Without Using Individual Phase ShiftersPhased arrays afford many advantages over mechanically steered systems. However, they are also more complex, heavy, and most of all costly. The high cost mainly originates from the complex feeding structure. This paper proposes a novel feeding scheme to eliminate all phase shifters and achieve scanning via one-dimensional motion. Beam scanning is achieved via a series fed array incorporating feeding transmission lines whose wave velocity can be mechanically adjusted. Along with the line design, ideal element impedances to be used in conjunction with the line are derived. Practical designs are shown which achieve scanning to +/-30deg from boresight. Finally, a prototype is fabricated and measured, demonstrating the concept.
Document ID
20120017466
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Host, Nicholas K. (Ohio State Univ. Columbus, OH, United States)
Chen, Chi-Chih (Ohio State Univ. Columbus, OH, United States)
Volakis, John L. (Ohio State Univ. Columbus, OH, United States)
Miranda, Felix A. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
October 21, 2012
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
GRC-E-DAA-TN5796
E-18502
Meeting Information
Meeting: Antenna Measurements and Techniques Association
Location: Bellevue, WA
Country: United States
Start Date: October 21, 2012
Funding Number(s)
WBS: WBS 920121.01.04.01.10
CONTRACT_GRANT: NNX11AN16H
Distribution Limits
Public
Copyright
Public Use Permitted.

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