Summary
International Symposium on Antennas and Propagation
2008
Session Number:3C25
Session:
Number:3C25-5
Design of a Dual Resonance Folded Dipole Antenna for on-Glass Use
Satoru Horiuchi, Shingo Tanaka, Yoshihide Yamada, Yasunori Atsumi,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
In Japan, the 470 ? 770 MHz band is allocated for digital terrestrial TV (DTV). Many wideband antennas for receiving DTV channels in motor vehicles have been developed [1], [2]. These antennas were designed to be mounted on a window. This article proposes a slender dual resonance folded dipole antenna (DRFDA) that is mounted on a window for vehicle application. The antenna is composed of two folded dipole antennas (FDAs) that cover low and high frequency bands. In order to design the antenna, first, the length and input impedance of glass mounted antennas are studied. Next, methods of combining two resonant antennas are discussed. The necessity of carefully designing the feed line for impedance matching at two frequency bands is emphasized. Finally, it is shown that the measured and simulated impedances and radiation patterns of the proposed antenna agree well with each other.