Abstract
A design for circularly polarized (CP) patch antennas with broadband operation is described and studied. The design is based on a traditional cross slot antenna excited with a microstrip line through coupling. It is found that when the ground plane of the cross slot antenna, namely the slotted patch has a specific aspect ratio, the CP radiation with a 3-dB-axial-ratio bandwidth of more than 30% can be generated. For such a slotted patch antenna, parametric analyses are performed to demonstrate how to achieve the broadband CP operation in a limited area. Simulated and measured results for the performances of the constructed prototype are also shown.
| Original language | English |
|---|---|
| Pages (from-to) | 1140-1143 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 57 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2015 Jan 1 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering