Abstract
A vertical-strip-fed dielectric resonator antenna exhibiting broadband circular polarization characteristics is presented. A broad 3 dB axial ratio bandwidth (ARBW) is achieved by combining multiple orthogonal modes due to the use of a special-shaped dielectric resonator. The proposed antenna is fabricated to evaluate its actual performance capabilities. The antenna exhibits a measured 3 dB ARBW of 44.2% (3.35–5.25 GHz), lying within a −10 dB reflection bandwidth of 82.7% (2.44–5.88 GHz). The measured peak gain within 3 dB ARBW is found to be 5.66 dBic at 4.8 GHz. The measured results are in good agreement with the simulated results.
Original language | English |
---|---|
Article number | 1911 |
Journal | Sensors |
Volume | 17 |
Issue number | 8 |
DOIs | |
State | Published - 18 Aug 2017 |
Keywords
- Broadband antenna
- Circular polarization
- Dielectric resonator antenna
- Vertical-strip feeding