Multiport Reactive Loading Matching Technique for Wide Band Antenna Applications Using the Theory of Characteristic Modes

A systematic framework is presented for designing an antenna with arbitrary shape and expanding its input impedance and pattern bandwidths using reactive loading. This method, unlike other design procedures, allows us to control the current distribution over the antenna structure with potentially fi...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2015-01, Vol.63 (1), p.261-268
Main Authors: Elghannai, Ezdeen A., Raines, Bryan D., Rojas, Roberto G.
Format: Article
Language:English
Subjects:
Antenna feeds
Antenna radiation patterns
Antennas
Band theory
characteristic modes
Current distribution
Design engineering
Dipole antennas
electrically small antennas
Impedance
Loaded antennas
Loading
Matching
Microstrip antennas
reactive loading
wide band antennas
Wire
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Description
Summary:A systematic framework is presented for designing an antenna with arbitrary shape and expanding its input impedance and pattern bandwidths using reactive loading. This method, unlike other design procedures, allows us to control the current distribution over the antenna structure with potentially fine granularity. This technique is applied to wire and microstrip antennas and it is shown to achieve a very good impedance and radiation pattern performance over the desired band. The loads are combination of Foster and non-Foster elements, which are generally required to obtain such dramatically improved performance.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2014.2367533