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To cover Wi-MAX and WLAN frequency bands, variations of coplanar waveguide fed hexagonal shape microstrip antennas backed by hexagonal slot ground plane in 3500 MHz frequency range is proposed. In the first variation of hexagonal shape microstrip antenna, an impedance bandwidth of more than 100% is obtained whereas 300 rotated variation of hexagonal shaped patch yields increased bandwidth of nearly...
Microstrip line fed elliptical shaped ultra wide band antenna with and without elliptical slot is presented. The elliptical patch yields bandwidth of 12.6 GHz with a peak gain of 3.0 dBi. Further, a parametric study for the elliptical slot cut inside the elliptical patch is presented. The elliptical slot optimizes the resonance frequencies of fundamental and higher order modes and impedance at them...
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