Muvvala Kalpana , R Ramana Reddy 2 3 (July - Septmber) This paper presents the design and performance analysis of a hexagonshaped microstrip patch antenna and a slotted hexagon patch antenna for wideband wireless communication applications The proposed antennas were designed and simulated using CST Microwave Studio on three different substrate materials namely FR4 r 43 Rogers RO3003 r 30 and Polyimide r 35 to investigate the influence of dielectric properties on antenna characteristics The conventional hexagon patch antenna achieved wideband operation with impedance bandwidths of 39 GHz 44 GHz and 42 GHz for FR4 Rogers RO3003 and Polyimide substrates respectively To further enhance the antenna performance a slot was introduced into the hexagonal patch and conformal analysis was carried out under bending angles of 25 30 35 40 and 45 The slotted antenna maintained stable resonant frequencies wide impedance bandwidths and acceptable gain values under all bending conditions Among the investigated substrates Rogers RO3003 exhibited the best performance with a maximum bandwidth of 447 GHz and a gain of 35 dB while Polyimide demonstrated excellent flexibility and impedance matching characteristics with a return loss of 487 dB The proposed antenna structures provide wide operating frequency coverage from approximately 19 GHz to 64 GHz making them suitable for WLAN WiMAX Sub6 GHz 5G IoT devices wireless sensor networks wearable electronics and conformal communication systems Copyright (c) World Journal of Pharmaceutical Seiences. All rights reserved 2026