14 March 2015 Integrated broadband bowtie antenna on transparent substrate
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The bowtie antenna is a topic of growing interest in recent years. In this paper, we design, fabricate, and characterize a modified gold bowtie antenna integrated on a transparent glass substrate. We numerically investigate the antenna characteristics, specifically its resonant frequency and enhancement factor. We simulate the dependence of resonance frequency on bowtie geometry, and verify the simulation results through experimental investigation, by fabricating different sets of bowtie antennas on glass substrates utilizing CMOS compatible processes and measuring their resonance frequencies. Our designed bowtie antenna provides a strong broadband electric field enhancement in its feed gap. The far-field radiation pattern of the bowtie antenna is measured, and it shows dipole-like characteristics with large beam width. Such a broadband antenna will be useful for a myriad of applications, ranging from wireless communications to electromagnetic wave detection.
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Xingyu Zhang, Xingyu Zhang, Shiyi Wang, Shiyi Wang, Harish Subbaraman, Harish Subbaraman, Qiwen Zhan, Qiwen Zhan, Zeyu Pan, Zeyu Pan, Chi-jui Chung, Chi-jui Chung, Hai Yan, Hai Yan, Ray T. Chen, Ray T. Chen, "Integrated broadband bowtie antenna on transparent substrate", Proc. SPIE 9362, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VIII, 93620P (14 March 2015); doi: 10.1117/12.2076536; https://doi.org/10.1117/12.2076536

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