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Numerical Study of Self-Complementary Antenna Characteristics on Substrate Lenses at Terahertz Frequency

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Abstract

This paper presents a numerical study of self-complementary antennas on substrate lenses made of high-permittivity dielectric material. Bowtie, logarithmically periodic, and logarithmic spiral antennas with the same outer and inner dimensions were selected for study, and their overall performances were compared in the terahertz band at frequencies up to 5.0 THz. The resonance and radiation characteristics of the three antennas were investigated in terms of input impedance, directivity, and radiation efficiency, using a full electromagnetic simulator. This study provides useful guidelines and partially solves the difficult problems of choosing the proper feed and optimizing the lens structure for a THz broadband integrated lens antenna.

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Acknowledgment

This work was supported by a National Research Foundation of Korea grant funded by the Korean Government (grant code: 2009-0083512)

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Authors and Affiliations

  1. School of Electrical and Computer Engineering, Ajou University, 5 Woncheon-dong, Youngtong-gu, Suwon, 443-749, Korea

    Truong Khang Nguyen, Thi Anh Ho & Ikmo Park

  2. Department of Electrical and Computer Engineering, Pohang University of Science and Technology, San 31 Hoyja-dong, Nam-gu, Pohang, 790-784, Korea

    Haewook Han

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  1. Truong Khang Nguyen
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  2. Thi Anh Ho
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Correspondence to Ikmo Park.

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Nguyen, T.K., Ho, T.A., Han, H. et al. Numerical Study of Self-Complementary Antenna Characteristics on Substrate Lenses at Terahertz Frequency. J Infrared Milli Terahz Waves 33, 1123–1137 (2012). https://doi.org/10.1007/s10762-012-9929-3

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