Terahertz Folded Half-Wavelength Dipole Antenna for High Output Power

Photoconductive folded half-wavelength dipole antennas have been introduced and demonstrated successfully for high power THz applications. The pulsed terahertz signals are measured in the time-domain terahertz setup. Using the simple model, the measured THz signals were analyzed. The calculated signals are in good agreements with the measured signals. It is shown that the folded half-wavelength dipole antennas have higher antenna resistances than the full-wavelength dipole antenna and are able to achieve higher output powers.