Summary

International Symposium on Antennas and Propagation

2006

Session Number:1D2b

Session:

Number:1D2b-2

A Small Steerable-Beam Antenna

H. Nakano,  H. Honma,  H. Umetsu,  J. Yamauchi,  

pp.1-4

Publication Date:2006/11/2

Online ISSN:2188-5079

DOI:10.34385/proc.34.1D2b-2

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Summary:
A round driven patch surrounded by four parasitic T elements is investigated to realize a steerable beam. The steered beam is obtained by selecting the connection state of the T elements (either open-circuited or short-circuited) to the ground plane. Eight connection states for the T elements are analyzed. It is found that the radiation beam is steerable in eight azimuthal directions (φ = 0? , 45? , 90? , 135? , 180? , 225? , 270? , and 315? ). The VSWR is less than 2 for all eight states. The directivity in the maximum beam direction is approximately 8 dB.