In this letter, a compact coplanar-waveguide-fed single-layer printed antenna with an ultrawideband (UWB) rect- angular monopole radiator etched with a half-elliptical slot is presented. Collaborating with the UWB radiator, two symmetrical open-circuit stubs are extended from the ground plane to jointly achieve an ultrawideband impedance match with a compact size. The proposed antenna is fabricated and tested in an anechoic chamber, showing an ultrawide operating frequency range from 3.7 to 10.1 GHz with a quasi-omnidirectional gain from 2.0 to 7.3 dBi. With the advantages of a reduced size, an improved voltage standing wave ratio (VSWR), and a monolayer configura- tion without any back ground plane, the proposed antenna can be used in a wide range of UWB applications.
|Journal||IEEE Antennas and Wireless Propagation Letters|
|State||Published - Feb 15 2013|