Band-Notched Circular Serrated Wideband Antenna

摘要

This letter investigates the performance improvement of coplanar waveguide fed (CPW) circular antenna with the addition of serrated structure in the radiating element. Antenna is providing a huge bandwidth of 13 GHz with an impedance bandwidth of 61% in the operating band. By placing U-shaped slots on the feed line, dual-band notch characteristics in the X-band are achieved. The proposed antenna is occupying a compact dimension of 30 X 30 X 1.6 mm on FR4 substrate with dielectric constant 4.3 and loss tangent 0.025. Prototyped antenna measured results on ZNB 20 VNA are in good agreement with simulated results of CST.