Ultra-wideband quasi-circular monopole antennas with rectangular and trapezoidal grounds
- 1 January 2009
- journal article
- Published by Institution of Engineering and Technology (IET) in IET Microwaves, Antennas & Propagation
- Vol. 3 (1), 55-61
- https://doi.org/10.1049/iet-map:20070215
Abstract
Two planar quasi-circular monopole antennas with rectangular and trapezoidal grounds are presented. The impedance bandwidths of the two antennas, defined by measured return loss better than 10 dB, are from 1.3 to 18.4 GHz and from 1.1 to 13.5 GHz, respectively. Both numerical and experimental results show that the proposed antenna with trapezoidal ground has significantly improved radiation performance, compared with the one with rectangular ground. Parameters and design considerations of the trapezoidal ground are discussed in detail. These novel monopole antennas have very wide impedance bandwidth, compact size and low fabrication cost, which are suitable for various broadband applications.Keywords
This publication has 8 references indexed in Scilit:
- Ultrawideband Planar Disc MonopoleIEEE Transactions on Antennas and Propagation, 2006
- Ultrawide-band square planar metal-plate monopole antenna with a trident-shaped feeding stripIEEE Transactions on Antennas and Propagation, 2005
- A case study to improve the impedance bandwidth of a planar monopoleMicrowave and Optical Technology Letters, 2005
- Broadband omnidirectional metal-plate monopole antennaIEEE Transactions on Antennas and Propagation, 2005
- A wide-band shorted planar monopole with bevelIEEE Transactions on Antennas and Propagation, 2003
- Wideband monopole antennas for multi-band wireless systemsIEEE Antennas and Propagation Magazine, 2003
- Control of the impedance bandwidth of wideband planar monopole antennas using a beveling techniqueMicrowave and Optical Technology Letters, 2001
- Wide-band planar monopole antennasIEEE Transactions on Antennas and Propagation, 1998