Abstract
Experimental and simulation results are presented on the coaxially fed rectangular patch antenna with a U-shaped slot. Experimental results include impedance bandwidth, copolar- and crosspolar-pattern characteristics and gain measurements. Simulation results are obtained mainly through the development of a FDTD code. It is found that the U-slot patch on a foam substrate of about 0.08λ thick can be designed to attain 20-30% impedance as well as gain bandwidths without the need of parasitic patches on another layer or on the same layer. The far-field patterns have good copolar and crosspolar characteristics. By altering the patch width or feed position, the wideband characteristic can be changed into a dual-frequency characteristic. Simulation results are in good agreement with measurements. © IEE, 1997.
| Original language | English |
|---|---|
| Pages (from-to) | 354-358 |
| Journal | IEE Proceedings: Microwaves, Antennas and Propagation |
| Volume | 144 |
| Issue number | 5 |
| Publication status | Published - 1997 |
Research Keywords
- Bandwidth widening
- Rectangular patch antennas