Annular slot windshield antenna

Author

Walton, Eric K. ; Abou-Jaoude, Ramzi ; Pekar, Michael E.

Author_Institution

ElectroSci. Lab., Ohio State Univ., Columbus, OH, USA

Volume

47

Issue

3

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

766

Lastpage

773

Abstract

An automotive AM/FM hidden antenna using the slot between the body of the automobile and a metal solar heat-reduction film in the front windshield is described. Such solar heat-reduction metal films are becoming common and thus represent an opportunity to incorporate an antenna at only marginal cost. The radio frequency (RF) input impedance and gain patterns are described, and techniques for impedance matching are shown. Theoretical and experimental antenna patterns are compared. A test range measurement system and experimental results is described. A mobile on-road system to characterize the antenna in urban and suburban environments is shown. The application of this mobile system to the measurement of calibrated gain patterns is also demonstrated

Keywords

amplitude modulation; antenna radiation patterns; antenna testing; automobiles; calibration; electric impedance measurement; frequency modulation; impedance matching; mobile antennas; slot antennas; RF input impedance; annular slot windshield antenna; antenna patterns; automotive AM/FM hidden antenna; calibrated gain patterns measurement; experimental results; gain patterns; impedance matching; metal solar heat-reduction film; mobile on-road system; suburban environment; test range measurement system; urban environment; Antenna measurements; Antenna theory; Automobiles; Automotive components; Automotive engineering; Costs; Impedance matching; Radio frequency; Slot antennas; Solar heating;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.704832

Filename

704832