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Design for the circularly polarized wideband cross dipole array antennas

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5 Author(s)
Kyeong-Sik Min ; Dept. of Radio Sci. & Eng., Korea Maritime Univ., Pusan, South Korea ; Dong-Chul Kim ; Hag-Gyu Lim ; H. Arai
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A microstrip antenna composed of a feed microstrip line and X-shaped EMC dipole is presented for wide bandwidth and circular polarization. The characteristics of an element parameter of DH, /spl epsiv//sub r2/, A and DL are calculated. Since the values of DH and /spl epsiv//sub r2/ need to keep constant height for simple design and fabrication in an array, their parameters are fixed in the design. Design for arrays such as 10-, 20-, 40-, and 80-element is also performed. The beam tilting result in an array is also calculated for a planar antenna structure for Korea satellite broadcasting reception. The calculated axial ratio is about 0.01 dB in the main beam direction and circular polarization is realized.

Published in:

Antennas and Propagation Society International Symposium, 2001. IEEE  (Volume:2 )

Date of Conference:

8-13 July 2001