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 language | English |
---|---|
Title of host publication | Proceedings of the 19th European Conference on Antennas and Propagation, EuCAP 2025 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Number of pages | 4 |
Publication status | Accepted - 31 Dec 2024 |
Event | 19th European Conference on Antennas and Propagation 2025 - Stockholm, Sweden Duration: 30 Mar 2025 → 04 Apr 2025 https://eucap.org/ |
Publication series
Name | EuCAP Proceedings |
---|---|
ISSN (Print) | 2164-3342 |
Conference
Conference | 19th European Conference on Antennas and Propagation 2025 |
---|---|
Abbreviated title | EuCAP 2025 |
Country/Territory | Sweden |
City | Stockholm |
Period | 30/03/2025 → 04/04/2025 |
Internet address |
Keywords
- computational microwave imaging
- frequency-diverse
- Huygens’ metalens
- metacavity