Ultrawideband strip-loaded circular slot antenna with improved radiation patterns

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Shi-Wei Qu
  • Jia-Lin Li
  • Jian-Xin Chen
  • Quan Xue

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)3348-3353
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume55
Issue number11 II
Publication statusPublished - Nov 2007

Abstract

An ultrawideband strip-loaded circular slot antenna is proposed in this Communication, which presents a measured impedance bandwidth of 144.8% (VSWR ≤ 2), much stable radiation patterns and small dimensions. The loading strip is used for redistributing the electric field within the slot to achieve stable radiation patterns across a wide frequency band, and it is optimized to influence on the impedance bandwidth as slightly as possible. For clarity, the simulated three-dimension (3-D) radiation patterns are given and compared with those of a conventional circular slot antenna without strip loading. The measured gain of the proposed antenna in the broadside direction is over 0 dBi from 2.4 to 11 GHz. The measured and simulated return losses and radiation patterns of the proposed antenna are given, and finally, parametric studies are performed for practical applications. © 2007 IEEE.

Research Area(s)

  • Antenna measurements, Antenna radiation patterns, Broadband antenna, Gain, Impedance, Microstrip, Microstrip antennas, Pattern improvement, Slot antenna, Slot antennas

Citation Format(s)

Ultrawideband strip-loaded circular slot antenna with improved radiation patterns. / Qu, Shi-Wei; Li, Jia-Lin; Chen, Jian-Xin; Xue, Quan.

In: IEEE Transactions on Antennas and Propagation, Vol. 55, No. 11 II, 11.2007, p. 3348-3353.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review