Reflectarray antenna (RA) systems are being increasingly used in many applications due to the advantages of their simple design and spatial feeding along with their capabilities for beam shaping and beam forming. However, like all aperture antennas, RAs are limited in the maximum gain they can achieve and power handling they can attain as a result of the feed illumination. By augmenting an RA horn feed with a GRadient INdex (GRIN) lens it is shown that it is possible to better distribute the feed's incident illumination across the surface while still maintaining the gain of the nominal system. Specifically, this work demonstrates that a GRIN lens designed for an offset fed RA at S Band operation can reduce the peak field strength by 17.6% and correspondingly improve the power handling capability by 47% relative to the nominal, no-lens system.
|Title of host publication
|2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
|Institute of Electrical and Electronics Engineers Inc.
|Number of pages
|Published - 2023
|2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Portland, United States
Duration: Jul 23 2023 → Jul 28 2023
|IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
|2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
|7/23/23 → 7/28/23
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering