Abstract
A broad beamwidth stacked patch antenna with wide circularly polarised (CP) bandwidth is presented. The proposed antenna consists of a stacked structure with a rectangular shell under its ground structure to obtain CP characteristics and wide beamwidth. The radiation quality is excellent over the entire upper hemisphere. The 3 dB beamwidth of the proposed antenna on 2.4 GHz is larger than 140°. Moreover, the CP bandwidth, determined from the 3 dB axial ratio, is found to be about 240 MHz. CP bandwidth of 10.2% and the impedance bandwidth of 52.8% centred on 2.4 GHz are obtained. The proposed antenna is a good candidate for wide angle scanning phased arrays.
| Original language | English |
|---|---|
| Pages (from-to) | 10-12 |
| Number of pages | 3 |
| Journal | Electronics Letters |
| Volume | 51 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 8 Jan 2015 |