A compact and low-profile metamaterial ring antenna with vertical polarization

Qureshi, F., Antoniades, M. A. and Eleftheriades, G. V. (2005) A compact and low-profile metamaterial ring antenna with vertical polarization. IEEE Antennas and Wireless Propagation Letters, 4 1: 333-336.


Author Qureshi, F.
Antoniades, M. A.
Eleftheriades, G. V.
Title A compact and low-profile metamaterial ring antenna with vertical polarization
Journal name IEEE Antennas and Wireless Propagation Letters   Check publisher's open access policy
ISSN 1536-1225
Publication date 2005
Sub-type Article (original research)
DOI 10.1109/LAWP.2005.857041
Volume 4
Issue 1
Start page 333
End page 336
Total pages 4
Place of publication Piscataway, NJ, United States
Publisher I E E E
Language eng
Formatted abstract A compact (λ0/11 footprint) and low-profile (λ0/28 height) metamaterial ring antenna is proposed using two metamaterial unit cells. Each constituent unit cell consists of negative-refractive-index (NRI) microstrip traasmission lines (TL) designed to incur a zero insertion phase at the antenna design frequency. This allows the inductive posts to ground, which act as the main radiating elements, to be fed in phase. Hence, the antenna operates as two closely spaced monopoles that are fed in phase through a compact feed network. An embedded matching network ensures good VSWR performance. The theoretical performance of the antenna is verified by full-wave simulations and experimental data obtained from a fabricated prototype at 1.77 GHz. The antenna offers a 120 MHz -10 dB bandwidth and a measured efficiency exceeding 50%.
Keyword Metamaterials
Negative refractive index
Small antennas
Vertical polarization
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
School of Information Technology and Electrical Engineering Publications
 
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