Abstract
In this article, ultra-wideband (UWB) monopole antenna with circular polarization (CP) is designed and implemented. The proposed antenna consists of an asymmetric shaped radiator fed by a microstrip line and a limited ground plane on the back side of the substrate. The overall size of proposed antenna is 28 mm × 29 mm, which is suitable for mobile devices. The antenna is fabricated on inexpensive FR4 a dielectric constant of, loss tangent tan = 0.019 with thickness of 1.6-mm. The measured results show that the proposed monopole antenna has a very wide bandwidth from 2.98 to 10.93 GHz that covers the UWB application range and defined by 10-dB return loss. Furthermore, a very wide CP bandwidth of 3-dB axial ratio bandwidth that ranges from 7.18 to 10.01 GHz is achieved.
| Original language | English |
|---|---|
| Pages (from-to) | 949-953 |
| Number of pages | 5 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 54 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2012 |
| Externally published | Yes |
Keywords
- axial ratio
- bandwidth
- circular polarization
- monopole antenna
- ultra-wideband
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering