FDTD analysis of CPW-fed folded-slot and multiple-slot antennas on thin substrates

Author

Tsai, Huan-Shang ; York, Robert A.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA

Volume

44

Issue

2

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

217

Lastpage

226

Abstract

Folded slot antennas are attractive for active arrays due to relatively large bandwidth, fabrication simplicity, and ease of integration with devices. Currently, there is little design information for these antennas, especially on thin substrates. The finite-difference time-domain (FDTD) method is applied to the analysis of CPW-fed folded-slot antennas. The paper describes the problems encountered in the analysis, compares the theoretical results and measured data, and provides some design information for folded slots. In addition, it explores the manipulation of input impedance through the use of additional slots, yielding antennas with a broadband 50 Ω input impedance

Keywords

antenna feeds; coplanar waveguides; electric impedance; finite difference time-domain analysis; slot antennas; substrates; 50 ohm; CPW fed folded slot antennas; FDTD analysis; active arrays; bandwidth; broadband 50 Ω input impedance; fabrication simplicity; finite-difference time-domain; input impedance; integration; measured data; multiple slot antennas; theoretical results; thin substrates; Antenna arrays; Antenna measurements; Bandwidth; Broadband antennas; Fabrication; Finite difference methods; Impedance; Information analysis; Slot antennas; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.481651

Filename

481651