Abstract
A novel CPW-fed millimeter wave slot antenna for broadband circular polarization and unidirectional radiation with multilayer 3D structures is discussed. The antenna is fabricated based on micro-electro-mechanical systems micro-fabrication technology. Through a special short-circuiting stub perturbation method, the circular ring slot antenna generates circularly polarized radiation and achieves a broad impedance bandwidth of 20% with voltage standing-wave ratio (VSWR) ≤ 2 and circularly polarized bandwidth of 17.6% with AR ≤ 3 dB. By adding a special wave guiding slot structure and wave cutoff slot structure, a novel approximate perfect magnetic conductor surface, the antenna radiates unidirectionally and the peak gain increases from about 5.2 dB to 7.5 dB.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2352-2359 |
| Number of pages | 8 |
| Journal | Journal of Micromechanics and Microengineering |
| Volume | 17 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 1 2007 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering