Title :
Analysis of cassegrain antenna by using a dichroic sub-reflector
Author :
Han, Myungjin ; He, Mengxun ; Sun, H.J. ; Zhao, G.Q. ; Cheng, Hao-Chien
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
This paper presents a Cassegrain reflector system consisted of a curved frequency selective surface (CFSS) for a sub-reflector. The CFSS, a conformal hyperboloid with circular ring elements, reflects W-band and transmits infrared region. We designed three CFSS models using different methods. The results not only showed that antenna patterns for the system of CFSS coincided very well with the system of PEC sub-reflector but also the circular ring element was insensitivity to the grid structure in W-band.
Keywords :
antenna radiation patterns; circular dichroism; frequency selective surfaces; geometry; reflector antenna feeds; CFSS models; Cassegrain antenna analysis; Cassegrain reflector system; PEC subreflector; W-band; antenna patterns; circular ring elements; conformal hyperboloid; curved frequency selective surface; dichroic subreflector; grid structure; Band-pass filters; Filtering theory; Frequency selective surfaces; Microwave filters; Millimeter wave technology; Reflector antennas; Cassegrain antenna; Curved Frequecy Selective Surface (CFSS); circular ring; dichroic;
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on
Conference_Location :
Qingdao
DOI :
10.1109/ICMTCE.2013.6812481
