Three-dimensional FSS elements with wide frequency and angular response

Author

Pelletti, Chiara ; Mittra, Raj ; Bianconi, Giacomo

Author_Institution

Electromagn. CommunicationLab, EEE Pennsylvania State Univ., University Park, PA, USA

fYear

2013

fDate

20-24 May 2013

Firstpage

698

Lastpage

700

Abstract

In this paper, we describe a three-dimensional frequency-selective surface (FSS) element that generates a flat bandpass response over a wide band, as well as controllable low-pass angular response. The unit cell, which consists of a waveguide element with two connected cascaded radiating elements, exhibits a flat bandpass response over the frequency range 13 GHz to 24 GHz, i.e. a -3dB bandwidth (BW/f₀) of 66.6%. We show that the angular response of the FSS can be controlled by changing its periodicity, which, in turn, determines the angle at which the first higher-order Floquet harmonic begins to propagate.

Keywords

band-pass filters; frequency response; frequency selective surfaces; low-pass filters; microwave filters; waveguide filters; 3D frequency selective surface elements; FSS; cascaded radiating elements; flat bandpass response; frequency 13 GHz to 24 GHz; frequency response; higher-order Floquet harmonic; low-pass angular response; microwave filters; waveguide element; Bandwidth; Cutoff frequency; Electromagnetic waveguides; Frequency selective surfaces; Harmonic analysis; Power harmonic filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on

Conference_Location

Hiroshima

Print_ISBN

978-1-4673-4939-0

Type

conf

Filename

6565834