Abstract
The design of a switched-beam antenna formed by a circular array of monopoles housed inside a radial guide with a transition to free space is presented. Two alternative types of transitions to free space, one using a truncated conducting cone and the other created by a tapered dielectric material at the edge of the radial guide, are described. The use of the radial guide with transition increases the return-loss bandwidth of the array and enables shaping its beam in elevation.
| Original language | English |
|---|---|
| Pages (from-to) | 115-118 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 43 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 20 Oct 2004 |
Keywords
- Conical horn antenna
- Dielectric antenna
- Radial guide
- Switched-beam array antenna