DocumentCode
1907674
Title
Roof-mounted vehicle single-arm spiral antenna without a balun circuit
Author
Nakano, H. ; Satake, R. ; Takeuchi, K. ; Yamauchi, J.
Author_Institution
Coll. of Eng., Hosei Univ., Tokyo, Japan
fYear
2011
fDate
13-20 Aug. 2011
Firstpage
1
Lastpage
4
Abstract
The deterioration in the antenna characteristics that are observed when a single-arm spiral antenna is located in front of a shallow conducting cavity can be mitigated by using an absorbing strip (ABS), which is placed behind the outer arm filaments. The use of lumped resistor elements connected to the arm end results in wideband antenna characteristics similar to those of the spiral with the ABS. A comparison between the spiral with the ABS and with the resistors shows that the former provides antenna characteristics in the lower frequency region that are more stable than the characteristics of the latter.
Keywords
broadband antennas; frequency response; spiral antennas; absorbing strip; antenna characteristics; frequency response; lumped resistor element; roof-mounted vehicle; shallow conducting cavity; single-arm spiral antenna; wideband antenna; Antennas; Cavity resonators; Impedance matching; Resistors; Spirals; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location
Istanbul
Print_ISBN
978-1-4244-5117-3
Type
conf
DOI
10.1109/URSIGASS.2011.6050413
Filename
6050413
Link To Document