High Bandwidth Triple-Band Microstrip Patch Antenna for THz Applications

To meet demands of the future realization, new progresses in communication systems require a low-cost, lightweight, low-profile, and high-performance antenna. In this paper triple-band microstrip patch antennas (MPAs) is proposed and designed for THz applications. The proposed antenna has the dimensions of 56.8× 66.8× 5µm3, uses Quartz-glass as a substrate material with a loss tangent =0 and thickness of 5 µm. Partial ground technique is implemented to improve the return loss and bandwidth of proposed antenna. This obtains bandwidth of 140, 700 and 410 GHz with return loss of −19.3, −29.2 and −22.5 dB at resonant frequencies 2.5 THz, 4 THz, and 5.4 THz respectively. The proposed antenna has been fed by means of microstrip feed line having impedance of 50 Ω. The results of antenna designed are suitable for THz applications. Higher Frequency Structural Simulator (HFSS v13) tool is used to simulate the proposed antenna.