Huygens' metalens-based frequency-diverse bunching metacavity antenna

Mengran Zhao, Huilin Huang, Aobo Li, Shitao Zhu, Okan Yurduseven

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The performance of computational microwave imaging (CMI) can be limited by the low signal-to-noise ratio (SNR) of the detected signal, which stems from the restricted directivity of the transmitter. To address this challenge, this paper introduces a new solution: a Huygens’ metalens (HM)-based frequency-diverse bunching metacavity antenna (FDBMA). By employing a frequency-diverse metacavity, it becomes feasible to generate low-correlated radiation patterns through a simple frequency sweep. These patterns can then serve as the measurement modes within the framework of CMI. To enhance the directivity of the radiation patterns, a two-dimensional (2D) HM is designed to fulfill the necessary transmission phase compensation requirements. The proposed HM-based FDBMA is realized by positioning the metacavity antenna at the focal point of the designed 2D HM. The performance of the proposed HM-based FDBMA is evaluated, including the reflection coefficient, correlation coefficients and singular values of the measurement modes. The proposed design is validated through full-wave simulations.

Original languageEnglish
Title of host publicationProceedings of the 19th European Conference on Antennas and Propagation, EuCAP 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
Publication statusAccepted - 31 Dec 2024
Event19th European Conference on Antennas and Propagation 2025 - Stockholm, Sweden
Duration: 30 Mar 202504 Apr 2025
https://eucap.org/

Publication series

NameEuCAP Proceedings
ISSN (Print)2164-3342

Conference

Conference19th European Conference on Antennas and Propagation 2025
Abbreviated titleEuCAP 2025
Country/TerritorySweden
CityStockholm
Period30/03/202504/04/2025
Internet address

Keywords

  • computational microwave imaging
  • frequency-diverse
  • Huygens’ metalens
  • metacavity

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