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Paper Information

Journal:   JOURNAL OF MODELING IN ENGINEERING   WINTER 2011 , Volume 8 , Number 23; Page(s) 79 To 88.
 
Paper: 

BANDWIDTH BROADENING OF DIELECTRIC RESONATOR ANTENNA BY NON UNIFORM WIDTH

 
 
Author(s):  REZAEI P.*
 
* ELECTRICAL ENGINEERING AND COMPUTER FACULTY, SEMNAN UNIVERSITY
 
Abstract: 

In this paper a rectangular dielectric resonator antenna (DRA) fed by a microstrip line is studied. Therefore, at first radiation performance of DRA is studied, and the improvement techniques are reviewed. Then propose a novel configuration for broadening of the impedance bandwidth. In the proposed arrangement, by using multi-segment structure with different dimensions, increase the antenna impedance bandwidth. However for decreasing the design parameters, variations limited to the segments width. So, with the non-uniform configuration by variable width, it is possible to create remarkable increase in frequency bandwidth. Utilizing the symmetrical seven-segment DRA and skillfully varying its aspect ratio, an appropriate structure is obtained that illustrates more than 52% impedance bandwidth for S11>10.

 
Keyword(s): RECTANGULAR DIELECTRIC RESONATOR ANTENNA, BROADENING BANDWIDTH, QUALITY FACTOR, NON-UNIFORM STRUCTURE
 
References: 
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