Design and analysis of a slotted waveguide antenna array with double broken ring Meta posts for 5G (India) and C-band applications

Abstract

Beam sweeping is very important when it comes to RADAR applications and satellite communications. This paper illustrates the design and analysis of a multibeam metaposts loaded waveguide slotted antenna for 5G and C-band applications. The proposed antenna resonates at 3.1GHz, 3.3GHz and 4.1GHz. The proposed antenna is designed using Computer Simulation Technology Microwave Studio-2016 package (CST MWS-2016). The simulated gains at these frequencies are 11.3dBi, 14.1dBi and 12.6dBi respectively. The proposed antenna has the impedance bandwidth of 110MHz, 240MHz and 540MHz in frequency bands of 3.01GHz-3.12GHz, 3.2GHz - 3.44GHz and 3.91GHz - 4.45GHz respectively. Further, the proposed antenna is linearly polarized and has a flower-shaped radiation pattern with the side lobe level below -4.6dB. Further, the proposed antenna possesses cross polarization below -60dB.