| Abstrakt: |
This study is established for designing different horn antenna shapes operating at 28 GHz and comparing their radiation performance using both CST and HFSS (Computer Simulation Technology (CST) and High Frequency Simulator Structure (HFSS) simulation techniques. For this, pyramidal, E-plane, and H-plane rectangular horn antennas are selected for the design purpose that is suitable for Ka-band applications operating at frequency ranges from 26.5 GHz to 40 GHz. The return loss S11 parameter, the VSWR, the efficiency, and the antenna realized gain for each mentioned horn shape are evaluated at the centre frequency of 28 GHz. The calculated results by both techniques reveal generally that the pyramidal horn shapes provide better radiation performance compared to the other considered ones, since it operates with a realized gain of about 17.4 dB, VSWR less than 1.2, radiation efficiency 99 %, and S11 of about -25 dB. In addition, the reliability of HFSS simulation techniques is observed as the computed results compared to those previously obtained by other researchers on different horn antenna shapes operating at the same operation frequencies. Finally, the improvement of this work relies on the antenna size motorization aperture areas compared to previous research workers. [ABSTRACT FROM AUTHOR] |
