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Design and analysis of a compact wideband patternreconfigurable antenna with alternate reflector and radiator.
- Source :
- IET Microwaves, Antennas & Propagation (Institution of Engineering & Technology); 12/1/2012, Vol. 6 Issue 15, p1629-1635, 7p
- Publication Year :
- 2012
-
Abstract
- The authors present a novel compact wideband pattern-reconfigurable antenna with alternate reflector and radiator. The proposed antenna consists of a pair of step-shape patches, four switches and a coplanar waveguide feeding line. By setting the switches ON or OFF, the two step-shape patches can alternately switch between the radiator and the reflector. As a result, the proposed antenna is able to provide two-directional radiation patterns whose main beams are roughly directed in opposing directions from 3.7 to 6 GHz. Compared with other current pattern-reconfigurable antennas, the proposed antenna exhibits advantages of better back-to-front radiation ratio, more compact antenna size and wider operating band. In this investigation, the optimised size of the proposed antenna is 20 × 20 mm², which equates to 0.25 × 0.25λ²<subscript>0</subscript> (λ<subscript>0</subscript> is the wavelength at the low edge of the operating frequency band). In addition, the time-domain characteristics of the proposed antenna are presented and analysed. The antenna shows a good time-domain performance. Measured results are presented. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17518725
- Volume :
- 6
- Issue :
- 15
- Database :
- Complementary Index
- Journal :
- IET Microwaves, Antennas & Propagation (Institution of Engineering & Technology)
- Publication Type :
- Academic Journal
- Accession number :
- 92522006
- Full Text :
- https://doi.org/10.1049/iet-map.2012.0005