Abstract
This paper presents a novel tapered slot coplanar waveguide (CPW)-fed antenna for ultra-wideband (UWB) wireless applications. The antenna with compact size of 20.8 × 39.1 mm2 provides an ultra-wide frequency bandwidth of 133.7% ranging from 2.6 to 13.1 GHz. By cutting rectangular slots with a narrow slit on the ground plate, the impedance bandwidth of the antenna can be enhanced. In addition, a half-circular radiator with a tapered radiating slot is introduced to obtain the good impedance matching and return loss characteristics. Moreover, the proposed antenna also shows the good impulse response to prevent the variation of large group delay throughout the band. The measured radiation patterns look quasi-omnidirectional with maximum gain limited to around 5.45 dBi. Finally, the performances of the UWB wireless system with proposed antenna are addressed as well.
| Original language | English |
|---|---|
| Pages (from-to) | 465-470 |
| Number of pages | 6 |
| Journal | International Journal on Communications Antenna and Propagation |
| Volume | 1 |
| Issue number | 5 |
| State | Published - 10 2011 |
| Externally published | Yes |
Keywords
- CPW-Fed antenna
- Group delay
- Impedance matching
- Tapered slot
- UWB wireless communications