Kadera, Petr ; Sanchez-Pastor, Jesus ; Eskandari, Hossein ; Tyc, Tomas ; Sakaki, Masoud ; Schüßler, Martin ; Jakoby, Rolf ; Benson, Niels ; Jimenez-Saez, Alejandro ; Lacik, Jaroslav (2022)
Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization.
In: IEEE Access, 10
doi: 10.1109/ACCESS.2022.3166509
Article, Bibliographie
This is the latest version of this item.
Abstract
This paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective flattened Luneburg lens for wide-angle millimeter-wave radio-frequency indoor localization. The maximum detection angle and radar cross-section (RCS) are investigated, including an impedance matching layer (IML) between the lens antenna and the free-space environment. The 3D QCTO Luneburg lenses are fabricated in alumina by lithography-based ceramic manufacturing, a 3D printing process. The manufactured structures have a diameter of 29.9 mm ( 4λ0 ), showing a maximum realized gain of 16.51 dBi and beam steering angle of ±70° at 40 GHz. The proposed QCTO Luneburg lens with a metallic reflective layer achieves a maximum RCS of −20.05 dBsqm at 40 GHz with a wide-angle response over ±37°, while the structure with an IML between the lens and air improves these values to a maximum RCS of −15.78 dBsqm and operating angular response between ±50°.
| Item Type: | Article |
|---|---|
| Erschienen: | 2022 |
| Creators: | Kadera, Petr ; Sanchez-Pastor, Jesus ; Eskandari, Hossein ; Tyc, Tomas ; Sakaki, Masoud ; Schüßler, Martin ; Jakoby, Rolf ; Benson, Niels ; Jimenez-Saez, Alejandro ; Lacik, Jaroslav |
| Type of entry: | Bibliographie |
| Title: | Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization |
| Language: | English |
| Date: | 2022 |
| Publisher: | IEEE |
| Journal or Publication Title: | IEEE Access |
| Volume of the journal: | 10 |
| DOI: | 10.1109/ACCESS.2022.3166509 |
| Corresponding Links: | |
| Abstract: | This paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective flattened Luneburg lens for wide-angle millimeter-wave radio-frequency indoor localization. The maximum detection angle and radar cross-section (RCS) are investigated, including an impedance matching layer (IML) between the lens antenna and the free-space environment. The 3D QCTO Luneburg lenses are fabricated in alumina by lithography-based ceramic manufacturing, a 3D printing process. The manufactured structures have a diameter of 29.9 mm ( 4λ0 ), showing a maximum realized gain of 16.51 dBi and beam steering angle of ±70° at 40 GHz. The proposed QCTO Luneburg lens with a metallic reflective layer achieves a maximum RCS of −20.05 dBsqm at 40 GHz with a wide-angle response over ±37°, while the structure with an IML between the lens and air improves these values to a maximum RCS of −15.78 dBsqm and operating angular response between ±50°. |
| Additional Information: | INDEX TERMS: Transformation optics, Luneburg lens, impedance matching, lens antenna, retroreflector, ceramic 3D printing, indoor localization, mm-wave, artificial dielectrics, chipless RFID |
| Classification DDC: | 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering |
| Divisions: | 18 Department of Electrical Engineering and Information Technology 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Microwave Engineering 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) |
| Date Deposited: | 02 Aug 2024 12:41 |
| Last Modified: | 02 Aug 2024 12:41 |
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Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization. (deposited 18 May 2022 12:10)
- Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization. (deposited 02 Aug 2024 12:41) [Currently Displayed]
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