Abstract
We present a dual-polarized lens antenna for point-to-multipoint communications at sub-THz. The lens is constructed by a doubly-curved parallel plate following a geodesic lens shape equivalent to the Luneburg index profile. The polarization is changed by metallic screens patterned with complementary split resonant rings (CSRRs). These screens are integrated in the radiation aperture of the lens. Two lenses are stacked up, one for each polarization. Each lens is fed by 11 waveguide ports, providing beam steering or multiple beams. The antenna is fully metallic and hence, highly efficient. In the operating band from 115 GHz to 125 GHz, the simulation shows a realized gain of 20 dBi with a maximum scan loss of 0.6d B up to 60 degrees, a cross-polarization discrimination around 20 dB, and an insertion loss smaller than 1.5 dB.
| Original language | English |
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| Title of host publication | 17th European Conference on Antennas and Propagation, EuCAP 2023 |
| Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
| Publication date | 2023 |
| Article number | 10133383 |
| ISBN (Electronic) | 9788831299077 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | 17th European Conference on Antennas and Propagation, EuCAP 2023 - Florence, Italy Duration: 26 Mar 2023 → 31 Mar 2023 |
Conference
| Conference | 17th European Conference on Antennas and Propagation, EuCAP 2023 |
|---|---|
| Country/Territory | Italy |
| City | Florence |
| Period | 26/03/2023 → 31/03/2023 |
Bibliographical note
Publisher Copyright:© 2023 European Association for Antennas and Propagation.
Keywords
- Dual polarization
- fully metallic
- geodesic lens
- lens antennas
- millimeter waves
- PPW
- sub-THz