DocumentCode :
673748
Title :
A wideband via fed circularly polarized microstrip antenna on a multi-layer substrate
Author :
Davidson, Kyle ; Antar, Yahia ; Freundorfer, Alois
Author_Institution :
Dept. of Electr. & Comput. Eng., R. Mil. Coll. of Canada, Kingston, ON, Canada
fYear :
2013
fDate :
7-13 July 2013
Firstpage :
1468
Lastpage :
1469
Abstract :
A wideband circularly polarized, via fed microstrip antenna on a multi-layer dielectric was investigated for applications in Retrodirective Arrays (RDA) mounted on Unmanned Aerial Vehicles (UAVs), both in a single element and an array. The fabricated element achieved an effective bandwidth of 1 GHz, or 33%, at a design frequency of 3 GHz across both the measured S11 and axial ratio bandwidths. It achieves this wideband performance without the use of an air gap, or electrically large feed networks seen in other wideband microstrip antennas, reducing the cost and size of the antenna. The coupling was then measured between antennas in a 2 by 5 element array, with this information used in the design of the phase conjugate network of an RDA.
Keywords :
UHF antennas; air gaps; autonomous aerial vehicles; broadband antennas; electromagnetic wave polarisation; microstrip antenna arrays; RDA; UAV; air gap; bandwidth 1 GHz; circularly polarized microstrip antenna; electrically large feed network; element array; frequency 3 GHz; multilayer substrate; phase conjugate network; retrodirective arrays; unmanned aerial vehicle; wideband circularly polarized antenna; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Microstrip; Microstrip antenna arrays; Microstrip antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
ISSN :
1522-3965
Print_ISBN :
978-1-4673-5315-1
Type :
conf
DOI :
10.1109/APS.2013.6711393
Filename :
6711393
Link To Document :
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