Abstract
In this article, we have proposed a multilayer bidirectional circularly polarized antenna for underground communications. The proposed antenna consists of two slot-coupled back-to-back arranged rotated patches and a microstrip feed-line. Identical left-hand circular polarization is achieved in both front and back directions to avoid the undesired polarization mismatch for point-to-point connection. A prototype of the proposed antenna is built to validate the design strategy. The measured data, including S-parameter, axial ratio, radiation pattern, and gain, agree well with the simulation results.
| Original language | English |
|---|---|
| Pages (from-to) | 2044-2047 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 55 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sept 2013 |
| Externally published | Yes |
Keywords
- bidirectional pattern
- identical circular polarization
- multilayer patch antenna
- underground communication