Self-supported wide-band dipole antennas with a constant gain characteristic

Author

Nishizawa, Kazushi ; Yamamoto, Naoyuki ; Tanaka, Miyuki ; Miyashita, Hiroaki ; Makino, Shigeru

Author_Institution

Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa

Volume

1B

fYear

2005

fDate

2005

Firstpage

426

Abstract

In this paper, the dipole antenna feeding coaxial line is taken up and a method to analyze the input impedance is proposed, where this antenna is supported itself and located over the ground. The method is derived using the equivalent model thought of the feed section as a circular radial line. Numerical simulations using the FDTD and experimental results of a prototype model are shown to confirm the method. It is also shown that this antenna can be achieved to have constant gain characteristics over a wide-band by optimizing geometric parameters

Keywords

antenna feeds; broadband antennas; dipole antennas; finite difference time-domain analysis; FDTD; constant gain characteristic; dipole antenna feeding coaxial line; geometric parameters; input impedance; self-supported wide-band dipole antennas; Antenna feeds; Broadband antennas; Coaxial cables; Conductors; Dielectric substrates; Dielectrics and electrical insulation; Dipole antennas; Geometry; Impedance; Research and development;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Conference_Location

Washington, DC

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1551583

Filename

1551583