Y. Liu, Yuan Yao, Xiao-he Cheng, Junsheng Yu, Xiao-dong Chen
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A Novel Design of Dual-Band Horn Antenna with Large Frequency Ratio
In this paper, a novel dual-band horn antenna operating at E band and X band is proposed. The radiation section is a horn antenna array consists of an H-plane EBG horn antenna based on band gap waveguide proposed recently and two pyramid horn antennas. The high band is radiated through the middle H-plane EBG horn antenna while the low band is radiated through the whole array. The simulation results show that within the operating frequency of interest, reflection coefficients are less than −10 dB and the gains are higher than 16dBi. The dual-band horn exhibits good beam-width equalization performance with an error within $\pm 10^{\circ}$ in both E band and X band.