Abstract
A planar, circular disc monopole antenna (PCDMA) with improved radiation characteristics is presented. The proposed ultra-broadband PCDMA is fed by the coplanar waveguide (CPW) structure. The improvement of the radiation characteristics, particularly at the frequencies around the higher band edge, is achieved by exploiting a tapered and periodically corrugated edge design to the CPW ground plane. The demonstrated CPW-fed PCDMA features an over 150 % VSWR=2 fractional bandwidth and satisfactory radiation characteristics over the entire band (0.89-5.9 GHz). The proposed PCDMA is expected to find applications in wideband/ultra-wideband communication systems. (6 pages)
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