Title :
FSS with a waveguide filter unit cell
Author :
Jie Wang;Hui Deng;Jin-ming Deng
Author_Institution :
School of Electronic Information Engineering, BeiHang University, Xueyuan Road 37# Haidian District, Beijing, China
Abstract :
When a Frequency Selective Surface (FSS) is irradiated by electromagnetic waves with different incident angle, drift of resonant frequency usually occurs as the incident angle changes. To solve this problem, a 3-D FSS design is presented, using metal post loaded waveguide filter as a unit cell. In this article, the poor angle stability of resonant frequency of a waveguide FSS is analyzed, and the mechanism of secondary radiation from metal post is used to improve the pass-band frequency stability of a waveguide filter as FSS irradiated by Transverse-Electric(TE) waves. This designing method is verified by numerical simulations. Moreover, the Wood´s anomaly destructive to the frequency stability design of FSS is also discussed.
Keywords :
"Frequency selective surfaces","Tellurium","Electromagnetic waveguides","Resonant frequency","Stability analysis","Waveguide transitions","Information filtering","Information filters","Electromagnetic scattering","Loaded waveguides"
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) and 2009 China Symposium on Frequency Control Technology, Joint Conference of the 2009 Symposium on
Print_ISBN :
978-1-4244-4950-7
DOI :
10.1109/SPAWDA.2009.5428953
