Design of Substrate Integrated Waveguide-based Metallic Strip Loaded Double Flared Horn Antenna

Analysis of the double-flared metallic strips loaded synthetic artificial waveguide-based electromagnetic horn antenna for X-band applications is discussed here. The complete design procedure and field analysis within the horn are also presented to better understand the proposed horn antenna. The analysis is also applicable for more number of flaring. The results in the form of reflection coefficients and radiation patterns in the operating band are presented to support the idea of a horn antenna using the SIW domain. The impedance bandwidth of 20.43 % (from 9.05-11.11 GHz) with respect to the centre frequency of 10.08 GHz is achieved. The gain performance of the antenna at all the frequencies is seen to be consistent (avg. 8.23 dB) with a highest value of 9 dB.