Design of right angled chamfered bends in RSIW for X-band application

The propagation direction of electromagnetic waves is not always straight and if the direction of wave changes in bounded medium, it encounters bending loss. This loss is due to reflection of wave from chamfer less bends. Thus, for direction change in bounded medium without incurring bending loss, these bends have been designed. The study contributes the designing and analysis of right angled E and H plane chamfered microwave bends in proposed rectangular substrate integrated waveguide. These newly designed bends are optimized in X-band frequencies [8-12 GHz] for super high frequency of 11 GHz. The proposed designs are built on FR4 epoxy substrate. By using these bends, different waveguides in X-band can easily bend into required position. These designs have return loss of -51.9035 dB and -50.4673 dB and voltage standing wave ration (VSWR) of 1.05 and 1.04 respectively. Hence, the high performance of proposed designs indicates that the bends are very efficient to transmit signal in radar and satellite communication. The bends are analyzed and simulated using high frequency structural simulator (HFSS) 15.