Title :
A Dipole Excited Ultrawideband Dielectric Rod Antenna With Reflector
Author :
Blech, Marcel D. ; Eibert, Thomas F.
Author_Institution :
Univ. Stuttgart, Stuttgart
fDate :
7/1/2007 12:00:00 AM
Abstract :
A novel very compact ultrawideband dielectric rod antenna with metallic reflector is presented. The desired HE11 mode on the rod is excited by a biconical dipole fed by a broadband tapered microstrip line balun. The input reflection remains below -10 dB from 3 up to 20 GHz. The antenna exhibits a flat gain larger than 7 dBi over the whole ultrawideband frequency range from 3 to 10 GHz approved by the Federal Communication Commission. An almost constant transient performance over a wide azimuth angle of plusmn40deg is obtained with small dispersion.
Keywords :
antenna feeds; baluns; conical antennas; dipole antennas; microstrip lines; reflector antennas; strip line components; ultra wideband antennas; Federal Communication Commission; biconical dipole fed; broadband tapered microstrip line balun; dipole antenna; frequency 3 GHz to 20 GHz; metallic reflector; ultrawideband dielectric rod antenna; Dielectrics; Dipole antennas; FCC; Frequency; Impedance matching; Microstrip; Reflection; Reflector antennas; Ultra wideband antennas; Ultra wideband technology; Dielectric rod; normalized impulse response; reflector; ultrawideband (UWB) antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.900261
