Design of Multi-utility Bottleneck Horn Antenna for Ku-, K-, and Ka-Band Applications

In this paper, we propose the design to accommodate for the Ku-band (12–18 GHz), K-band (18–27 GHz), and Ka-band (26.5–40 GHz) frequency used cases as high-fidelity broadcasting for military applications, short-range terrestrial communication, and advanced weather forecasting applications by implementing the design structure with horn antenna having bottleneck profile. To have a ubiquitous application embedded with a single antenna, this structure was developed using advanced design analysis to determine the paragon shape responsible for high radiation efficiency. This constraint is evaluated in terms of return loss, radiation pattern, electromagnetic field patterns, and current distribution. The simulated impedance bandwidth of the bottleneck horn antenna is 100% showing that the antenna is operational at the entire intended frequency band range. The accounted gain is of 23.18 dB and directivity of 23.23 dB having 99.78% efficiency and low operating power of 0.5 W making the antenna high-line ideal for the desired satellite communication.