Abstract
A novel dual-band chiral metamaterial (CMM) circular polarizer is proposed based on a dual-armed wheel-like structure. The proposed CMM can convert a linearly polarized electromagnetic wave into a circularly polarized (CP) mode. The simulation and measured results show, with good consistency, that the CMM exhibits good CP characteristics, such as a polarization isolation higher than 18 dB and an axial ratio lower than 1 dB. In addition, our studies show that all the resonance frequencies of this CMM structure are independent. Finally, a simple design method is presented and verified by a simulation to change the resonance frequencies of the proposed dual-band CMM circular polarizers.
| Original language | English |
|---|---|
| Article number | 8852824 |
| Pages (from-to) | 2587-2591 |
| Number of pages | 5 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 18 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Dec 2019 |
Keywords
- Chiral metamaterials (CMMs)
- circular polarization
- dual-band structure