Design considerations for rectangular microstrip patch antenna onelectromagnetic crystal substrate at terahertz frequency

摘要

The effects of 2-D electromagnetic crystal substrate on the performance of a rectangular microstrip patchantennas at THz frequencies is simulated. Electromagnetic crystal substrate is used to obtain extremelybroad-bandwidth with multi-frequency band operation of the proposed microstrip antennas. Multi-fre-quency band microstrip patch antennas are used in modern communication systems in order to enhancetheir capacity through frequency reuse. The simulated 10 dB impedance bandwidth of the rectangularpatch microstrip antenna is 34.3% at THz frequency (0.6-0.95 THz). The radiation efficiency, gain anddirectivity of the proposed antenna are presented at different THz frequencies. The simulation has beenperformed using CST Microwave Studio, which is a commercially available electromagnetic simulatorbased on finite integral technique.