Multi-Layered Proximity Probe-Fed E-Shaped Patch Antenna Array for Terahertz Imaging System

This work presents a multi-layered proximity coupled meandering-probe-fed E-shaped patch antenna array for terahertz imaging system with a center frequency at 150 GHz. The E-shaped patch antenna is proximity coupled using a meandering-probe feed. A test kit was designed, fabricated, and measured to verify the design and resonance of the E-shape patch antenna. An antenna feeding structure was also designed, with a 2.52 dBi total broadside realized gain of the antenna and feeding structure combined. A 4×4 subarray provided a 30% impedance bandwidth and an 80% radiation efficiency. A decoupling design for the antenna array was also proposed.