Abstract
A simple procedure for designing a new fractal CPW-fed monopole antenna with band-notch function for ultrawideband applications has been proposed. The proposed antenna consists of V-shaped patch with circular-shaped elements and an elliptically-shaped tapered ground plane. To create band-notch function, V-shaped structure is extruded on the patch from the throat of the feed. By cutting a pair of a quarter ellipse-shaped slots in the ground plane, proper impedance matching is obtained; as a result much wider impedance bandwidth can be achieved, especially at the higher frequencies. The antenna is small in size (25 x 25 mm2) and has wide usable fractional bandwidth of more than 143% (3.15–19 GHz) defined by VSWR<2, except at frequency band-notched of 4.90–6.04 GHz. Moreover, Omnidirectional radiation pattern and acceptable antenna gain are obtained over the operating band.
Original language | English |
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Pages (from-to) | 2533-2536 |
Number of pages | 4 |
Journal | Microwave and Optical Technology Letters |
Volume | 57 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2015 |
Keywords
- monopole antennas
- ultra-wideband antennas