Abstract
A cross-shaped composite with frequency selective surfaces is applied in the design of a broadband polarizer. The structure is multilayer, and the unit cell of each layer consists of a composite cross and a metal strip. The design takes advantage of both the similar amplitude and the stable phase difference of nearly 90° of the two orthogonal components of transmitted waves. The bandwidth of the polarizer reaches 74%, from 5.15 to 11.20 GHz, which is able to generate circular-polarization waves from incident linear waves. A sample polarizer is fabricated and tested. According to the measurement results, the polarizer operates from 5.75 to 11.20 GHz at normal incidence. In addition, its working frequency band can still cover the range of 5.80 to 11.00 GHz when the incident angle increases to 20°.
| Original language | English |
|---|---|
| Article number | 8000622 |
| Pages (from-to) | 5623-5627 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 65 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2017 |
Keywords
- Circular polarizer
- frequency selective surface
- periodic structures
- polarization converter