Directivity Improvement of Low-Profile Electromagnetic Band Gap Resonator Antenna Using Phase Transformation Sheet
Zaqumi, Mohammad Nasrat; Shahid, Saleem; Kakepoto, Fatima Ghulam; Rafique, Umair; Asadnia, Mohsen; Abbas, Syed Muzahir (2025-05-21)
IEEE
21.05.2025
M. N. Zaqumi, S. Shahid, F. G. Kakepoto, U. Rafique, M. Asadnia and S. M. Abbas, "Directivity Improvement of Low-Profile Electromagnetic Band Gap Resonator Antenna Using Phase Transformation Sheet," 2025 19th European Conference on Antennas and Propagation (EuCAP), Stockholm, Sweden, 2025, pp. 1-3, doi: 10.23919/EuCAP63536.2025.10999820.
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© 2025 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202505273987
https://urn.fi/URN:NBN:fi:oulu-202505273987
Tiivistelmä
Abstract
This study proposes an efficient method for directivity improvement of electromagnetic band gap (EBG) resonator antennas with enhancement of near-field phase distribution. A single dielectric layer phase transformation sheet (PTS) is designed at 11 GHz based on the operational frequency of the EBG resonator antenna. The PTS consists of two unit cells printed on both sides of a single dielectric layer to compensate for the non-uniform near-field phase distribution of the EBG resonator antenna. The proposed solution doubles the uniformity region of the phase distribution and achieves 22% aperture efficiency.
This study proposes an efficient method for directivity improvement of electromagnetic band gap (EBG) resonator antennas with enhancement of near-field phase distribution. A single dielectric layer phase transformation sheet (PTS) is designed at 11 GHz based on the operational frequency of the EBG resonator antenna. The PTS consists of two unit cells printed on both sides of a single dielectric layer to compensate for the non-uniform near-field phase distribution of the EBG resonator antenna. The proposed solution doubles the uniformity region of the phase distribution and achieves 22% aperture efficiency.
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