A Directive Ultra-Wideband Dipole Antenna with Dielectric Rod and Reflector

Conference: INICA 2007 - International ITG-Conference on Antennas
03/28/2007 - 03/30/2007 at Munich, Germany

Proceedings: INICA 2007

Pages: 4Language: englishTyp: PDF

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Eibert, Thomas F.; Blech, Marcel D. (Universit├Ąt Stuttgart, Institute of Radio Frequency Technology, Pfaffenwaldring 47, 70569 Stuttgart, Germany)

A directive ultra-wideband (UWB) antenna exhibiting a gain of more than 7 dBi in the whole FCC UWB frequency band is presented. The excitation of the so called dipole mode on the rod is achieved by a biconical dipole. Placing this configuration in some distance to a reflector results in a flat gain curve. Besides an input reflection of better than -10 dB from 3 up to 20 GHz, this novel antenna has an excellent transient behavior over a wide azimuth angle, whereas the dimensions can be kept very compact.