Emc testlerinde kullanılmak üzere yüksek kazançlı genişbant dört çıkıntılı boynuz anten tasarımı

This thesis presents a design and simulation of high gain wideband quad-ridged circular horn antenna for Electromagnetic Compatibility (EMC) testing. The selected operating frequency range of the antenna is from 1 GHz to 6 GHz, which is implemented for radiated emission and radiated immunity tests. The antenna is designed as a quad-ridged which is desired to be used in the horizontal and vertical polarization measurements simultaneously. To determine the antenna gain parameter, Vestel test systems are considered as well as actual needs. The gain of the horn antenna currently used in laboratories is not enough for the 3 meters testing. Therefore, 1 meter testing window method is used for radiated, radio-frequency, electromagnetic eld immunity tests which are in the scope of EN61000-4-3 standard. Hence, the designed horn antenna gain is aimed to be have approximately 14 dBi. CST Microwave Studio is used in the design of the horn antenna and simulation results. The simulation results show that the antenna gain is approximately 14 dBi, also at least about 10 dB return loss (S11 and S22) separately for each port providing horizontal and vertical polarization and the isolation of the ports is more than -27 dB.