標題: | Circularly Polarized Slotted Conductor-backed Coplanar Waveguide (CBCPW) Antenna Array with Sequentially Rotated Feeding Structure |
作者: | Lin, Yow-Shyan Lin, Lieh-Chuan Kitazawa, Toshihide Lin, Yu-De 電信工程研究所 Institute of Communications Engineering |
公開日期: | 2009 |
摘要: | In this paper, circularly polarized slotted antenna arrays on conductor-backed coplanar waveguide (CBCPW) operating at Ku band are proposed. Radiating slots along the propagation direction of the parallel-plate mode in the CBCPW structure are etched to radiate into the air. By appropriately arranging the position and tilt angle for each slot, we can implement a kite-shaped linearly polarized antenna array with high gain and narrow beamwidth. Combining four linearly polarized arrays with a sequentially rotated feeding structure can produce a circularly polarized slotted CBCPW antenna arrays. Two arrangements of the sequential rotation method with the feeding phases in a 0 degrees, 90 degrees, 0 degrees, 90 degrees fashion and a 0 degrees, 90 degrees, 180 degrees, 270 degrees fashion are used. The measured gains are 24.889 dBiC for the 0 degrees, 90 degrees, 0 degrees, 90 degrees arrangement and 24.691 dBiC for the 0 degrees, 90 degrees, 180 degrees, 270 degrees arrangement, respectively. The bandwidths of the axial ratio (AR) below 3 dB are 330 MHz and 370 MHz, |
URI: | http://hdl.handle.net/11536/16888 |
ISBN: | 978-1-934142-10-3 |
期刊: | PIERS 2009 MOSCOW VOLS I AND II, PROCEEDINGS |
起始頁: | 874 |
結束頁: | 878 |
顯示於類別: | 會議論文 |