Design and Analysis of a Compact Co-Planar Waveguide Fed Ground Slotted Corner Truncated Ultra-Wideband Patch Antenna

The article presented in this work is a ground slotted corner truncated patch antenna (CTPA) which is fed by a co-planar waveguide (CPW). The patch which is dimensioned as 9.4×13.9 mm². A feed line of 50 ohm has the dimension of 4.5×1.9 mm² is fed to the rectangular patch. The patch is incorporated in a rectangular slotted ground with a dimension of 27.1×40.1 mm². The proposed antenna uses the dielectric substrate of FR-4 having 50×50×1.6 mm³ dimensions and has a relative permittivity of 4.4.The compactness is obtained by truncation of the corners. This design has the center frequency of 6.5 GHz. The designed antenna produces 1.56-11.63 GHz frequency band, which covers the entire range of ultra-wideband (UWB), 3.1-10.6 GHz. A rectangular aperture is etched in the ground for enhancing the impedance bandwidth(BW) and the patch corners are truncated for achieving the UWB characteristics and the matching properties. Microwave Studio (MS) Computer Simulation Technology (CST) utilised to design and simulate the antenna and observed the results like reflection coefficient (or Return Loss(RL) or S11), voltage standing wave ratio (VSWR), antenna patterns, gain (G) and -10 dB bandwidth, which satisfy the requirements of UWB. This is the best and suitable antenna for the applications of UWB.