Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 63, Issue 9, Pages 3908-3917Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2015.2446999
Keywords
Artificial magnetic conductor (AMC); image theory; planar phased array; wide-angle scanning
Funding
- National Natural Science Foundation of China [61331007, 61361166008, 61401065]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120185130001]
- EHF Key Laboratory of Fundamental Science Project [A03010023801171003]
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A wide-beam antenna and a planar phased array with wide-angle scanning performance based on image theory are proposed. To solve the wide-angle scanning problem, a summative evaluation of basic types of carrier-based antennas is given and the antenna types available for wide-angle scanning arrays or end-fire arrays are pointed out. Afterward, a wide-angle scanning array with an artificial magnetic conductor (AMC) ground is proposed. The main beam direction of the array can scan from -89 degrees to 90 degrees in the H-plane with a gain fluctuation less than 3 dB and the scanning 3-dB beamwidth can cover a range from -105 degrees to 105 degrees.. An excellent wide-angle scanning performance from the broadside direction to the end-fire direction can be obtained by the proposed method, which can be used to guide the design of wide-angle scanning arrays.
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