Title :
Numerical and Experimental Investigation of an Ultrawideband Hybrid TEM Horn Antenna with a Small Aperture
Author :
Geisler, Carl J. ; Afsar, Mohamed N. ; Goldner, Ronald B. ; Hill, Joseph C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tufts Univ., Medford, MA
Abstract :
We report the numerical analysis and experimental characterization of an ultrawideband (UWB) hybrid TEM horn antenna with a small aperture (7 mmtimes10 mm). The antenna was constructed using a coaxial line transition to a parallel plate configuration which forms the TEM structure. Detailed finite difference time domain simulations were conducted from 1 to 12 GHz for the radiation field directly in front of the aperture. Experiments were performed to validate the numerical results. We demonstrate that the beam width is directly proportional to the aperture size and that this design is scalable to very small apertures. These features are desirable for several applications including hyperthermia and medical imaging
Keywords :
antenna radiation patterns; aperture antennas; coaxial cables; finite difference time-domain analysis; horn antennas; ultra wideband antennas; 1 to 12 GHz; aperture size; coaxial line; finite difference time domain simulation; numerical analysis; parallel plate configuration; radiation field; ultrawideband hybrid TEM horn antenna; Antennas and propagation; Aperture antennas; Bandwidth; Biomedical imaging; Coaxial components; Finite difference methods; Horn antennas; Hyperthermia; Ultra wideband antennas; Ultra wideband technology; TEM horn; hyperthermia; medical imaging; ultrawideband (UWB) antennas;
Conference_Titel :
Ultra-Wideband, The 2006 IEEE 2006 International Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
1-4244-0101-1
Electronic_ISBN :
1-4244-0102-X
DOI :
10.1109/ICU.2006.281573
