Abstract
In this paper, a reconfigurable metacavity antenna (RMA) that can be used for microwave computational imaging (CI) and direction of arrival (DoA) estimation applications is proposed. The RMA is an electrically over-sized metacavity with its back wall replaced by a 1-bit reconfigurable metasurface and its top surface etched with leaky circular irises. By leveraging the frequency-diversity and the dynamic aperture techniques, spatiotemporally low-correlated radiation patterns can be generated by the RMA at different operating frequencies and under different PIN states. The reflection coefficients at operating frequencies are under -10 dB, indicating the RMA is impedance-matched. The correlation coefficients are smaller than 0.3 and the singular values are close to each other, which demonstrates the spatialorthogonality of the measurement modes. Simulated experiments are implemented to validate the feasibility of the proposed RMA for CI and DoA estimation. Using the developed RMA, the target image has been reconstructed and the far-field source has been estimated. The proposed design is validated through simulations in CST Microwave Studio.
Original language | English |
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Title of host publication | 2024 IEEE European Conference on Antennas and Propagation (EuCAP): proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9788831299091 |
ISBN (Print) | 9798350394436 |
DOIs | |
Publication status | Published - 26 Apr 2024 |
Event | 18th European Conference on Antennas and Propagation 2024 - Glasgow, United Kingdom Duration: 17 Mar 2024 → 22 Mar 2024 https://www.eucap2024.org/ |
Publication series
Name | European Conference on Antennas and Propagation (EUCAP): proceedings |
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ISSN (Print) | 2164-3342 |
Conference
Conference | 18th European Conference on Antennas and Propagation 2024 |
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Abbreviated title | EuCAP 2024 |
Country/Territory | United Kingdom |
City | Glasgow |
Period | 17/03/2024 → 22/03/2024 |
Internet address |