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Content Provider | IEEE Xplore Digital Library |
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Author | Hashmi, R.M. Zebt, B.A. Esselle, K.P. |
Copyright Year | 2014 |
Description | Author affiliation: Centre for Electromagn. & Antenna Eng. (CELANE), Macquarie Univ., Sydney, NSW, Australia (Hashmi, R.M.; Zebt, B.A.; Esselle, K.P.) |
Abstract | We present extremely simple techniques developed recently to address the bandwidth enhancement of resonant cavity antennas (RCAs) made out of unprinted dielectric slabs. These techniques are suitable for both unit-cell superstrate models as well as the finite-size RCA model in which superstructure area is optimized to increase the 3dB directivity bandwidth of RCA. It is shown that controlled dielectric and thickness contrast can be used as a defect to create wideband RCA superstrates in unit-cell design whereas the use of small superstrate area can directly enhance the 3dB bandwidth. Prototype antenna design is presented and results are included to demonstrate the improvements obtained. Significant improvements in 3dB bandwidth (≥50%) have been observed as compared to conventional designs while conserving design simplicity, practicality and ease of fabrication, which are the key advantages of presented techniques. |
Starting Page | 270 |
Ending Page | 272 |
File Size | 307355 |
Page Count | 3 |
File Format | |
ISBN | 9781479923311 |
e-ISBN | 9781479923298 |
DOI | 10.1109/IWAT.2014.6958658 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2014-03-04 |
Publisher Place | Australia |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Cavity resonators Broadband antennas Wideband Antenna arrays |
Content Type | Text |
Resource Type | Article |
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