Antenna radiation characterization by backscattering modulation
Year of publication
2004
Authors
Pursula, Pekka; Varpula, Timo; Jaakkola, Kaarle; Hirvonen, Mervi
Abstract
The effective aperture of the antenna is determined using measured backscattering data. An oscillator with a known port impedance is connected to the antenna under test to modulate the backscattered radiation. The measurement is based on measuring the signal in the modulation sidebands. Using a simple circuit model for the antenna-oscillator system, the antenna effective aperture, bandwidth and radiation pattern can be determined. In this paper, theory for antenna aperture measurement is developed, and measurements with error considerations of an antenna with a highly reactive port impedance at the application frequency are presented. The results are compared to a traditional transmission measurement results.
Show moreOrganizations and authors
Publication type
Publication format
Article
Parent publication type
Conference
Article type
Other article
Audience
ScientificPeer-reviewed
Peer-ReviewedMINEDU's publication type classification code
A4 Article in conference proceedingsPublication channel information
Journal
VTT Symposium
Parent publication name
Conference
URSI/IEEE XXIX Convention on Radio Science
Publisher
VTT Technical Research Centre of Finland
Issue
235
Pages
115-118
ISSN
ISBN
Open access
Open access in the publisher’s service
Yes
License of the publisher’s version
Other license
Self-archived
No
Other information
Language
English
International co-publication
No
Co-publication with a company
No
The publication is included in the Ministry of Education and Culture’s Publication data collection
No