A Low-Profile Inverted F Element Array Backed by an EBG Reflector

Author

Nakano, H. ; Asano, Y. ; Tsutsumi, G. ; Yamauchi, J.

Author_Institution

Coll. of Eng., Hosei Univ., Koganei

fYear

2006

fDate

9-14 July 2006

Firstpage

2985

Lastpage

2988

Abstract

An array composed of a pair of inverted F elements above an EBG reflector is constructed and analyzed using the finite-difference time-domain method (FDTDM). The array is characterized by inverted F elements that have an extremely small height above the surface of the EBG reflector (0.03 wavelength). The analysis is performed for two cases (CASE I and CASE II). The two inverted F elements for CASE I are excited in phase, and those for CASE II are excited 180 degrees out of phase. It is found that the radiation fields from the array for these two cases have orthogonal polarizations in the direction normal to the array plane. It is also found that the VSWR is relatively wide: approximately 10% for CASE I and 21% for CASE II

Keywords

antenna accessories; antenna arrays; finite difference time-domain analysis; photonic band gap; reflector antennas; EBG reflector; FDTD method; VSWR; electromagnetic band gap; finite-difference time-domain method; low-profile inverted F element array; orthogonal polarizations; radiation fields; voltage standing wave ratio; Arm; Computer aided software engineering; Educational institutions; Feeds; Frequency; Metamaterials; Periodic structures; Polarization; Reflector antennas; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711235

Filename

1711235