Dualband frequency-selective surfaces using substrate-integrated waveguide technology

Author

Luo, G.Q. ; Hong, W. ; Tang, H.J. ; Chen, J.X. ; Wu, K.

Author_Institution

Dept. of Radio Eng., Southeast Univ., Nanjing

Volume

1

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

408

Lastpage

413

Abstract

This paper proposes a dualband frequency-selective surface (FSS) based on substrate-integrated waveguide (SIW) technology. This novel dualband FSS is constructed using double square loop slots (DSLSs) and an SIW cavity. Its frequency performance is investigated by numerical simulation using the finite difference frequency domain (FDFD) method. Another dualband FSS, constructed using convoluted double square loop slots (CDSLSs) and an SIW cavity is also investigated in order to get close passband spacing. Simulation results show that these dualband FSSs have the advantages of higher selectivity and passband insensitivity to the incident angles and polarisations, compared with conventional multiband FSSs. Experiments are carried out to verify the simulated results, and the measured results show a promising performance of the proposed FSS

Keywords

finite difference time-domain analysis; frequency selective surfaces; waveguide components; FDFD; FSS; SIW; double square loop slots; dualband frequency-selective surfaces; finite difference frequency domain; frequency performance; incident angles; passband spacing; polarisations; substrate-integrated waveguide technology;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map:20060039

Filename

4167700