Radiation characteristics of terahertz waveguide-fed circularly polarised antipodal exponentially tapered slot antenna

Hongda Lu; Xin Lv; Yong Liu

doi:10.1049/el.2014.1448

Radiation characteristics of terahertz waveguide-fed circularly polarised antipodal exponentially tapered slot antenna

Hongda Lu, Xin Lv, Yong Liu

School of Integrated Circuits and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A terahertz (THz) waveguide-fed circularly polarised (CP) antipodal exponentially tapered slot antenna (AETSA) is designed, fabricated and measured. This antenna is fed by a WR2.2 rectangular waveguide. The integrated AETSA is fabricated by deep reactive-ion etching on silicon wafers, gold-sputtering and gold-gold thermo-compression bonding. Optimised exponential curves are introduced to the profiles of tapered slots to realise the CP performance. The measured radiation patterns at 490 GHz show beamwidths of 42° and 39° in the 0°-plane and 90°-plane, with low sidelobes. Furthermore, the measured axial ratios (ARs) from 480 to 500 GHz are lower than 2 dB. The THz waveguide- fed CP AETSA has potential to be applied in compact THz imaging, detection and communication systems.

Original language	English
Pages (from-to)	1122-1123
Number of pages	2
Journal	Electronics Letters
Volume	50
Issue number	16
DOIs	https://doi.org/10.1049/el.2014.1448
Publication status	Published - 31 Jul 2014

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10.1049/el.2014.1448

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abstract = "A terahertz (THz) waveguide-fed circularly polarised (CP) antipodal exponentially tapered slot antenna (AETSA) is designed, fabricated and measured. This antenna is fed by a WR2.2 rectangular waveguide. The integrated AETSA is fabricated by deep reactive-ion etching on silicon wafers, gold-sputtering and gold-gold thermo-compression bonding. Optimised exponential curves are introduced to the profiles of tapered slots to realise the CP performance. The measured radiation patterns at 490 GHz show beamwidths of 42° and 39° in the 0°-plane and 90°-plane, with low sidelobes. Furthermore, the measured axial ratios (ARs) from 480 to 500 GHz are lower than 2 dB. The THz waveguide- fed CP AETSA has potential to be applied in compact THz imaging, detection and communication systems.",

author = "Hongda Lu and Xin Lv and Yong Liu",

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AU - Lu, Hongda

AU - Lv, Xin

AU - Liu, Yong

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N2 - A terahertz (THz) waveguide-fed circularly polarised (CP) antipodal exponentially tapered slot antenna (AETSA) is designed, fabricated and measured. This antenna is fed by a WR2.2 rectangular waveguide. The integrated AETSA is fabricated by deep reactive-ion etching on silicon wafers, gold-sputtering and gold-gold thermo-compression bonding. Optimised exponential curves are introduced to the profiles of tapered slots to realise the CP performance. The measured radiation patterns at 490 GHz show beamwidths of 42° and 39° in the 0°-plane and 90°-plane, with low sidelobes. Furthermore, the measured axial ratios (ARs) from 480 to 500 GHz are lower than 2 dB. The THz waveguide- fed CP AETSA has potential to be applied in compact THz imaging, detection and communication systems.

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Radiation characteristics of terahertz waveguide-fed circularly polarised antipodal exponentially tapered slot antenna

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