Abstract

In this paper, a new design for a coplanar waveguide (CPW) fed, aperture antenna is introduced. This CPW aperture antenna is designed at a central frequency around 10 GHz with an input impedance of approximately 50 /spl Omega/. Numerical simulation is performed for antenna analysis using Momentum from the Advanced Design System (ADS) software package of Agilent Technologies. The bandwidth of this basic bow-tie aperture antenna is about 1 GHz and the return loss approximately -18 dB. Another advanced design for this basic bow-tie aperture antenna shows a bandwidth of 1.3 GHz with a return loss of -40 dB around 10 GHz. Simulation results for return loss, input impedance and radiation pattern are presented. These characteristics make these two antennas suitable for antenna arrays for radar applications.

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