Lossless Matching Layer for Silicon Lens Arrays At 500 GHz Using Laser Ablated Structures

Juan  Bueno Lopez; Sjoerd  Bosma; Tobias  Bußkamp-Alda; Maria Alonso Del Pino; Nuria Llombart

doi:10.1109/TTHZ.2022.3202031

Lossless Matching Layer for Silicon Lens Arrays At 500 GHz Using Laser Ablated Structures

Juan Bueno Lopez, Sjoerd Bosma, Tobias Bußkamp-Alda, Maria Alonso Del Pino, Nuria Llombart

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Abstract

We present the design, fabrication and characterization of a broadband lossless matching layer for silicon lens arrays. The proposed matching layer is based on silicon frusta (truncated pyramids) on top of the lens array fabricated by means of laser ablation. This matching layer is advantageous over quarter-wavelength dielectric matching layers since it covers more than an octave of bandwidth. We compare the performance of this matching layer with the commonly-used parylene-C matching layer at the center of the targetted band (500 GHz) in a lens-antenna integrated system. We measure a 1.6 dB higher transmission of the proposed silicon frusta matching compared to the parylene-C matching layer.

Original language	English
Pages (from-to)	667 - 672
Number of pages	6
Journal	IEEE Transactions on Terahertz Science and Technology
Volume	12
Issue number	6
DOIs	https://doi.org/10.1109/TTHZ.2022.3202031
Publication status	Published - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Anti-reflection coating
dielectric lens antennas
matching layer
submillimeter-wave

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10.1109/TTHZ.2022.3202031

Lossless_Matching_Layer_for_Silicon_Lens_Arrays_At_500_GHz_Using_Laser_Ablated_StructuresAccepted author manuscript, 1.27 MB
Lossless_Matching_Layer_for_Silicon_Lens_Arrays_at_500_GHz_Using_Laser_Ablated_StructuresFinal published version, 4.33 MB

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title = "Lossless Matching Layer for Silicon Lens Arrays At 500 GHz Using Laser Ablated Structures",

abstract = "We present the design, fabrication and characterization of a broadband lossless matching layer for silicon lens arrays. The proposed matching layer is based on silicon frusta (truncated pyramids) on top of the lens array fabricated by means of laser ablation. This matching layer is advantageous over quarter-wavelength dielectric matching layers since it covers more than an octave of bandwidth. We compare the performance of this matching layer with the commonly-used parylene-C matching layer at the center of the targetted band (500 GHz) in a lens-antenna integrated system. We measure a 1.6 dB higher transmission of the proposed silicon frusta matching compared to the parylene-C matching layer.",

keywords = "Anti-reflection coating, dielectric lens antennas, matching layer, submillimeter-wave",

author = "{Bueno Lopez}, Juan and Sjoerd Bosma and Tobias Bu{\ss}kamp-Alda and {Alonso Del Pino}, Maria and Nuria Llombart",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ",

year = "2022",

doi = "10.1109/TTHZ.2022.3202031",

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AU - Bueno Lopez, Juan

AU - Bosma, Sjoerd

AU - Bußkamp-Alda, Tobias

AU - Alonso Del Pino, Maria

AU - Llombart, Nuria

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

Y1 - 2022

N2 - We present the design, fabrication and characterization of a broadband lossless matching layer for silicon lens arrays. The proposed matching layer is based on silicon frusta (truncated pyramids) on top of the lens array fabricated by means of laser ablation. This matching layer is advantageous over quarter-wavelength dielectric matching layers since it covers more than an octave of bandwidth. We compare the performance of this matching layer with the commonly-used parylene-C matching layer at the center of the targetted band (500 GHz) in a lens-antenna integrated system. We measure a 1.6 dB higher transmission of the proposed silicon frusta matching compared to the parylene-C matching layer.

AB - We present the design, fabrication and characterization of a broadband lossless matching layer for silicon lens arrays. The proposed matching layer is based on silicon frusta (truncated pyramids) on top of the lens array fabricated by means of laser ablation. This matching layer is advantageous over quarter-wavelength dielectric matching layers since it covers more than an octave of bandwidth. We compare the performance of this matching layer with the commonly-used parylene-C matching layer at the center of the targetted band (500 GHz) in a lens-antenna integrated system. We measure a 1.6 dB higher transmission of the proposed silicon frusta matching compared to the parylene-C matching layer.

KW - Anti-reflection coating

KW - dielectric lens antennas

KW - matching layer

KW - submillimeter-wave

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JO - IEEE Transactions on Terahertz Science and Technology

JF - IEEE Transactions on Terahertz Science and Technology

IS - 6

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Lossless Matching Layer for Silicon Lens Arrays At 500 GHz Using Laser Ablated Structures

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Keywords

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