RFID Merlion Forum 2024 Paper Sharing Series - Multi-Beam Conformal Transmitarrays
A transmitarray antenna with an elliptical cylindrical shape is presented for a wide-angle multibeam radiation in this communication. The transmitarray has a cylindrical radiating aperture with an elliptical cross-section, namely, elliptical cylindrical shape. Multiple feeds can be placed on the middle horizontal plane to realize multiple beams. Inspired by a 2-D Ruze lens, the antenna shape and the phase compensation are jointly designed according to the desired maximal beam direction. Innovative methods including a feed refocusing analysis and a virtual focal length are utilized to achieve the phase compensation across the 3-D aperture for multiple beam radiations with a small scanning loss. In order to validate the proposed antenna, a prototype operating in the millimeter-wave (mm-wave) E-band has been designed, fabricated, and measured. By changing the position of the feeding gain horn along the refocusing arc, the main beam of antenna can be scanned in 11 directions. The measured peak boresight realized gain is 27 dBi at 70.5 GHz and a beam coverage of ±43° with a less than 2.7 dB scanning loss is obtained.
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- Engineering Block E4
- Engineering Drive 3
- Singapore, Singapore
- Singapore 117583
- Building: E4
- Room Number: 05-39
- Starts 11 May 2024 07:00 AM UTC
- Ends 23 May 2024 04:00 PM UTC
- No Admission Charge
Speakers
University of Technology Sydney
Biography:
Prof. Peiyuan Qin received a Bachelor Degree in Electronic Engineering from Xidian University, Xi’an, China, in 2006, and a joint Ph.D. Degree from Xidian University and Macquarie University, Australia, in electromagnetic fields and microwave technology in 2012. From 2012 to 2015, he was a Postdoctoral Research Fellow in Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia. From 2015 to 2016, he was a Chancellor's Postdoctoral Research Fellow/Lecturer at the University of Technology Sydney (UTS), Australia. Since 2023, he is an Associate Professor with UTS. He was a visiting scholar at Harvard University in 2018. His research interests are in the areas of reconfigurable antennas, conformal antennas, and arrays.
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