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PIER PIER B PIER C PIER M PIER Letters
2012-09-17
Full-Wavelength Dipole Antenna on a GaAs Membrane Covered by a Frequency Selective Surface for a Terahertz Photomixer
By
Truong Khang Nguyen,

    Dr. Truong Khang Nguyen

    Faculty of Information Technology

    Van Lang University

    Vietnam

    Homepage

Thi Anh Ho,

    Dr. Thi Anh Ho

    School of Electrical and Computer Engineering

    Ajou University

    Korea

    Homepage

Ikmo Park,

    Prof. Ikmo Park

    Electrical and Computer Engineering

    Ajou University

    Korea

    Homepage

Haewook Han

    Dr. Haewook Han

    Department of Electrical and Computer Engineering

    POSTECH

    Korea

    Homepage

Progress In Electromagnetics Research, Vol. 131, 441-455, 2012
doi:10.2528/PIER12082101
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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