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2012-09-17
Full-Wavelength Dipole Antenna on a GaAs Membrane Covered by a Frequency Selective Surface for a Terahertz Photomixer
By
Progress In Electromagnetics Research, Vol. 131, 441-455, 2012
Abstract
An antenna consisting of a full-wavelength dipole on a GaAs membrane covered by a frequency-selective surface is proposed for improved output power from photomixers used as terahertz (THz) sources. The antenna structure reduces the vertical dimension of a typical photomixer antenna using a substrate lens while still exhibiting high total efficiency and high directivity. The resulting antenna after optimization produced an input resistance of 3870 Ω and a radiation efficiency of 60%, corresponding to a total efficiency of approximately 48.3% and a maximum directivity of 20.2 dBi at the resonance frequency of 1.03 THz. The proposed antenna is expected to be a promising alternative THz photomixer design.
Citation
Truong Khang Nguyen, Thi Anh Ho, Ikmo Park, and Haewook Han, "Full-Wavelength Dipole Antenna on a GaAs Membrane Covered by a Frequency Selective Surface for a Terahertz Photomixer," Progress In Electromagnetics Research, Vol. 131, 441-455, 2012.
doi:10.2528/PIER12082101
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