An Ultra-Wideband Leaky Lens Antenna for Broadband Spectroscopic Imaging Applications

Sebastian Hähnle; Ozan Yurduseven; Sven van Berkel; Nuria Llombart; Juan Bueno; Stephen J.C. Yates; Vignesh Murugesan; David Thoen; Andrea Neto; Jochem Baselmans

doi:10.1109/TAP.2019.2963563

An Ultra-Wideband Leaky Lens Antenna for Broadband Spectroscopic Imaging Applications

Sebastian Hähnle, Ozan Yurduseven, Sven van Berkel, Nuria Llombart, Juan Bueno, Stephen J.C. Yates, Vignesh Murugesan, David Thoen, Andrea Neto, Jochem Baselmans

Tera-Hertz Sensing

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Abstract

We present the design, fabrication, and characterization of a broadband leaky lens antenna for broadband, spectroscopic imaging applications. The antenna is designed for operation in the 300-900 GHz band. We integrate the antenna directly into an Al-NbTiN hybrid microwave kinetic inductance detector (MKID) to measure the beam pattern and absolute coupling efficiency at three frequency bands centered around 350, 650, and 850 GHz, covering the full antenna band. We find an aperture efficiency \eta _{ap} \approx 0.4 over the whole frequency band, limited by lens reflections. We find a good match with simulations for both the patterns and efficiency, demonstrating a 1:3 bandwidth in the submillimeter wavelength range for future on-chip spectrometers.

Original language	English
Article number	9000802
Pages (from-to)	5675-5679
Number of pages	5
Journal	IEEE Transactions on Antennas and Propagation
Volume	68
Issue number	7
DOIs	https://doi.org/10.1109/TAP.2019.2963563
Publication status	Published - 2020

Keywords

Broadband antennas
submillimeter wave devices
superconducting devices
ultrawideband antennas

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10.1109/TAP.2019.2963563

09000802Accepted author manuscript, 11.6 MB

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title = "An Ultra-Wideband Leaky Lens Antenna for Broadband Spectroscopic Imaging Applications",

abstract = "We present the design, fabrication, and characterization of a broadband leaky lens antenna for broadband, spectroscopic imaging applications. The antenna is designed for operation in the 300-900 GHz band. We integrate the antenna directly into an Al-NbTiN hybrid microwave kinetic inductance detector (MKID) to measure the beam pattern and absolute coupling efficiency at three frequency bands centered around 350, 650, and 850 GHz, covering the full antenna band. We find an aperture efficiency \eta _{ap} \approx 0.4 over the whole frequency band, limited by lens reflections. We find a good match with simulations for both the patterns and efficiency, demonstrating a 1:3 bandwidth in the submillimeter wavelength range for future on-chip spectrometers.",

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author = "Sebastian H{\"a}hnle and Ozan Yurduseven and {van Berkel}, Sven and Nuria Llombart and Juan Bueno and Yates, {Stephen J.C.} and Vignesh Murugesan and David Thoen and Andrea Neto and Jochem Baselmans",

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doi = "10.1109/TAP.2019.2963563",

language = "English",

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T1 - An Ultra-Wideband Leaky Lens Antenna for Broadband Spectroscopic Imaging Applications

AU - Hähnle, Sebastian

AU - Yurduseven, Ozan

AU - van Berkel, Sven

AU - Llombart, Nuria

AU - Bueno, Juan

AU - Yates, Stephen J.C.

AU - Murugesan, Vignesh

AU - Thoen, David

AU - Neto, Andrea

AU - Baselmans, Jochem

PY - 2020

Y1 - 2020

N2 - We present the design, fabrication, and characterization of a broadband leaky lens antenna for broadband, spectroscopic imaging applications. The antenna is designed for operation in the 300-900 GHz band. We integrate the antenna directly into an Al-NbTiN hybrid microwave kinetic inductance detector (MKID) to measure the beam pattern and absolute coupling efficiency at three frequency bands centered around 350, 650, and 850 GHz, covering the full antenna band. We find an aperture efficiency \eta _{ap} \approx 0.4 over the whole frequency band, limited by lens reflections. We find a good match with simulations for both the patterns and efficiency, demonstrating a 1:3 bandwidth in the submillimeter wavelength range for future on-chip spectrometers.

AB - We present the design, fabrication, and characterization of a broadband leaky lens antenna for broadband, spectroscopic imaging applications. The antenna is designed for operation in the 300-900 GHz band. We integrate the antenna directly into an Al-NbTiN hybrid microwave kinetic inductance detector (MKID) to measure the beam pattern and absolute coupling efficiency at three frequency bands centered around 350, 650, and 850 GHz, covering the full antenna band. We find an aperture efficiency \eta _{ap} \approx 0.4 over the whole frequency band, limited by lens reflections. We find a good match with simulations for both the patterns and efficiency, demonstrating a 1:3 bandwidth in the submillimeter wavelength range for future on-chip spectrometers.

KW - Broadband antennas

KW - submillimeter wave devices

KW - superconducting devices

KW - ultrawideband antennas

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JO - IEEE Transactions on Antennas and Propagation

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ER -

An Ultra-Wideband Leaky Lens Antenna for Broadband Spectroscopic Imaging Applications

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Keywords

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