DocumentCode :
247558
Title :
The impact of different power dividers used in a non-uniform planar antenna array
Author :
Varum, Tiago ; Matos, Joao Nuno ; Abreu, Rui ; Pinho, Pedro
Author_Institution :
Inst. de Telecomun., Aveiro, Portugal
fYear :
2014
fDate :
6-11 July 2014
Firstpage :
1690
Lastpage :
1691
Abstract :
Wireless communications are widely used for various applications, requiring antennas with different features. Often, to achieve the desired radiation pattern, is necessary to employ antenna arrays, using non-uniform excitation on its elements. Power dividers can be used and the best known are the T-junction and the Wilkinson power divider, whose main advantage is the isolation between output ports. In this paper the impact of this isolation on the overall performance of a circularly polarized planar antenna array using non-uniform excitation is investigated. Results show a huge decrease of the array bandwidths either in terms of return loss or in polarization, without resistors.
Keywords :
antenna radiation patterns; planar antenna arrays; polarisation; power dividers; radio networks; array bandwidths; circularly polarized planar antenna array; nonuniform excitation; nonuniform planar antenna array; polarization; power dividers; radiation pattern; wireless communications; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Bandwidth; Power dividers; Resistors; antenna arrays; power divider;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
ISSN :
1522-3965
Print_ISBN :
978-1-4799-3538-3
Type :
conf
DOI :
10.1109/APS.2014.6905171
Filename :
6905171
Link To Document :
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