Abstract
A novel transmit lens array is proposed to provide broadband quasi-optical power distribution and beam-steering capabilities for array architectures in future submillimeter-wave heterodyne instruments. The transmit array is composed of a double array layer of lens antenna elements with high aperture efficiency. To enable broadband and low loss quasi-optical (QO) power distribution, the transmit lens array is coupled with a high aperture efficiency single lens antenna. The high aperture efficiency is achieved by using a recently introduced multi-mode leaky wave feed. The top lens array can be used to achieve beam-steering capabilities when fed coherently and mechanically translated using a piezo-motor. In this contribution, we present the development of a prototype based on a transmit lens array of 7 elements at 450-650 GHz with measurements showing a good agreement with simulations. This prototype demonstrates a quasi-optical power coupling efficiency of nearly 60%. Moreover it also shows beam-steering of a 36dBi directivity beam to few discrete angles up to +/-25 degrees with less than 2dB scan loss
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) |
| Publisher | IEEE |
| Pages | 1-2 |
| Number of pages | 2 |
| ISBN (Electronic) | 978-1-7281-9427-1 |
| ISBN (Print) | 978-1-7281-9428-8 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) - Hybrid event at Delft, Netherlands Duration: 28 Aug 2022 → 2 Sept 2022 Conference number: 47th https://www.irmmw-thz2022.tudelft.nl/ |
Conference
| Conference | 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) |
|---|---|
| Abbreviated title | IRMMW-THz 2022 |
| Country/Territory | Netherlands |
| City | Hybrid event at Delft |
| Period | 28/08/22 → 2/09/22 |
| Internet address |
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-careOtherwise 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.