Abstract
A novel electric small conical antenna working on a very broad band, 0.47-6 GHz, with the height of only 60 mm, is presented. A capacitive ring on the top of the cone and three oblique shorted lines are used to expand the work band. By changing the width of the ring and the slope of the oblique line, the impedance of the antenna matches 50-ohm feed line commendably. Simulation and experiment results demonstrate that this antenna provides very broad band and low-profile characters, which exhibits a 12.8:1 impedance bandwidth with voltage standing wave ratio (VSWR) below 2: 1 (the impedance bandwidth is 11.9: 1 with the VSWR below 1.5: 1) and with the height only 0.094 wavelength associated to the lowest frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 97-103 |
| Number of pages | 7 |
| Journal | Progress in Electromagnetics Research Letters |
| Volume | 7 |
| DOIs | |
| State | Published - 2009 |
| Externally published | Yes |