Abstract
A small microstrip patch/slot antenna, which achieves a very large bandwidth on a relatively thin substrate (about 0.01λ0), is presented. The performance is achieved by employing a combination of annular-ring loading on the patch radiator and the use of a crossed-slot for miniaturisation. An additional ring-slot in the ground plane is used to produce the wideband characteristics of the antenna. Simulated and measured results indicate that a 53 fractional impedance bandwidth is achieved with respect to the centre frequency of 1.409GHz and the size of the antenna is reduced by 50 compared to the conventional circular patch antenna with respect to a given frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 146-148 |
| Number of pages | 3 |
| Journal | Electronics Letters |
| Volume | 43 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2007 |