HYBRID RECONFIGURABLE TRAPEZOIDAL ANTENNA WITH FSS FOR GAIN IMPROVEMENT

Abstract

A trapezoidal slotted FSS based notch band antenna is proposed with pattern and frequency reconfigurability. The designed antenna is prototyped on FR4 substrate with loss tangent 0.025 and permittivity 4.4. The model is working from 0.9 to 3.8 GHz, with coverage of all modern communication applications. The notch is giving blockage of frequency from 1.6-2.2 GHz. PIN diodes are utilized for fine-tuning from 1.5 to 3.5 GHz with switching and -30⁰ to +30⁰ tilt in pattern also. FSS structure beneath the antenna is providing gain more than 7.2 dB and making this model for future high gain applications.