PROJECT TITLE :

Millimeter-Wave High-Gain SIW End-Fire Bow-tie Antenna

ABSTRACT:

This communication presents a high-gain bow-tie antenna that operates across 57–sixty four GHz for application in high knowledge rate point-to-purpose communication systems. The proposed antenna consists of a pair of bow-tie radiators, where each radiator is etched on the other side of the common dielectric substrate and fed through substrate integrated waveguide (SIW) feed-line. The bow-tie radiators are arranged to cross each different symmetrically by tilting the feed-lines by 30° to boost the antenna gain and to get the desired radiation pattern. The antenna is loaded with a try of double G-shaped resonators (DGRs) that are located in an exceedingly region between the radiators and SIW to suppress the rear-lobe level in the H-plane. Embedded within the E-plane of the antenna is an array of zero-index metamaterial (ZIM) unit-cells whose purpose is to effectively confine the electromagnetic waves in the end-fire direction to boost its gain performance. A prototype antenna was fabricated and its performance was measured to validate the simulation results. The proposed structure exhibits a gain of 11.8–12.five dBi over the frequency range of 57–64 GHz with reflection coefficient less than . Similarly, the proposed antenna exhibits smart cross-polarization, which is less than in each E- and H-planes at 60 GHz.


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