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Implementation of a 2-D Reconfigurable Fresnel-Zone-Plate Antenna.
- Source :
-
IEEE Transactions on Antennas & Propagation . Jan2021, Vol. 69 Issue 1, p520-525. 6p. - Publication Year :
- 2021
-
Abstract
- Combining the advantages of the phase tunability provided by active frequency selective surfaces (FSSs) and the beam-steering scheme used in conventional 1-D Fresnel-zone-plate (FZP) antennas, we report in this communication a 2-D beam-steering FZP antenna that needs only 180° phase tunability. Compared with transmit arrays, while the substrate layers are reduced by a half, a phase compensation strategy is used to enhance antenna specifications. To verify the proposed approach, a radome implemented based on an active, reconfigurable FSS was designed, simulated, and experimentally implemented. With a simple three-layer structure, the implemented FZP antenna works within an ultrawide bandwidth ranging from 5 to 6.3 GHz, corresponding to a 21% relative bandwidth. With a gain up to 19.3 dBi, the scanning range reaches ±45° in both horizontal and vertical planes. This cost-effective, simple-structured antenna can be potentially used in diverse RF and microwave applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FREQUENCY selective surfaces
*ANTENNAS (Electronics)
Subjects
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 69
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 148040477
- Full Text :
- https://doi.org/10.1109/TAP.2020.3008066