Sensitivity Analysis of Input Impedance of a Large Loop Antenna in a Waveguide to Tilt Angle

被引：0
|
作者：
Salem, N. Pelin M. H. [1 ]
Niver, Edip [1 ]
Salem, Mohamed A. [2 ]
机构：
[1] New Jersey Inst Technol, ECE Dept, University Hts, NJ 07104 USA
[2] Sonoma State Univ, Engn Sci Dept, 1801 East Cotati Ave, Rohnert Pk, CA 94928 USA
来源：
2018 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS (APMC) | 2018年
关键词：
loop antennas; antenna tolerance analysis; impedance matching; antenna design methods; waveguide antennas;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A large circular loop antenna is used to excite the TE41 mode at operation frequency of 9 GHz inside a circular waveguide section to launch a vortex beam. The antenna is located inside the waveguide such that the real part of its input impedance is equal to 50 Omega. A reactive element is used to match the antenna to a 50 Omega voltage source. We perform a parametric study on the effect of small tilts of the antenna on the input impedance. The study is performed using multi-level fast multipole method (MLFMM) full-wave simulations. Results show that for this design, a tilt in the range +/- 2 degrees along the antenna axis with a tilt of up to +3 degrees perpendicular to the antenna axis is tolerable without noticeable degradation in the launcher performance.
引用
收藏
页码：88 / 90
页数：3
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