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Practical Consideration of Dual-Feed Switched-Beam Patch Antennas in a Phased Array Design

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2 Author(s)
Tagapanij, J. ; Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut''s Inst. of Technol., Bangkok ; Krairiksh, M.

This paper presents mutual coupling between dual-feed switched-beam patch antennas that affects input impedances and radiation patterns. Analysis is carried out by using CST electromagnetic simulator to provide a single element that has good matching and radiation patterns. Then, mutual coupling between side-by-side and parallel-in-echelon configurations at various distances are plotted to know mutual impedance between elements and radiation patterns. The resultant radiation patterns of a phased array of switched-beam elements have shallow null that must be compensated in practical use.

Published in:

Microwave Conference, 2007. APMC 2007. Asia-Pacific

Date of Conference:

11-14 Dec. 2007

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