Reconfigurable Multifunction Polarization Converter Integrated With PIN Diode
- 4 March 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters
- Vol. 31 (6), 557-560
- https://doi.org/10.1109/lmwc.2021.3064039
Abstract
A novel reconfigurable polarization conversion method based on a metasurface turned by PIN diodes is proposed herein. The proposed metasurface consists of one layer of a dielectric and two layers of metal surfaces. When the diode is in an OFF-state, a wideband linear to circular (LTC) polarization converter is realized. The results show that the metasurface can achieve LTC polarization conversion in the frequency range of 11.8-24.1 GHz, and the axial ratio (AR) reveals that the 3-dB bandwidth is approximately 68.5%. When the diode is in the ON-state, a dual-band linear to linear (LTL) polarization converter is realized, with the 3-dB bandwidths of 10.5-13.9 GHz and 17.7-27.2 GHz, achieving a polarization converter ratio (PCR) greater than 90%. The dc bias circuit of the PIN diode is etched on the reflectance surface. Therefore, no additional feeding lines are introduced, which can decrease the impact on the active metasurface; this metasurface has practical applications in microwave communication systems.Keywords
Funding Information
- National Natural Science Foundation of China (61961006)
- Central Government Guide to Local Science and Technology Development Foundation (QKZYD[2018]4009)
- Science and Technology Foundation of Guizhou Province (QKHJC[2020]1Y256)
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