Title :
Aperture coupling near-field cavity effects for electromagnetic testing with measurements on a slotted circular cylinder
Author :
Waller, Marsellas L. ; Shumpert, Thomas H. ; Scharstein, Robert W.
Abstract :
Electric field measurements for an electromagnetic wave excited from a log-periodic dipole array at two separation distances on a finite slotted circular cylinder are compared to an analytical model of a plane wave on an infinite slotted circular cylinder. The four foot diameter cylinder cross section is used to represent the cross section (1/2 scale) of an Army Blackhawk helicopter. The frequency range of interest is in the Very High Frequency (VHF) band where the first resonances of the cavity occur. Transverse Magnetic (TM) and Transverse Electric (TE) polarizations are considered.
Keywords :
dipole antenna arrays; electromagnetic coupling; electromagnetic wave polarisation; radiowave propagation; slot antenna arrays; TE polarization; TM polarization; VHF; aperture coupling near-field cavity effect; army blackhawk helicopter; electric field measurement; electromagnetic wave testing; log-periodic dipole array; slotted circular cylinder; transverse electric polarization; transverse magnetic polarization; very high frequency; Analytical models; Apertures; Cavity resonators; Couplings; Electric fields; Magnetic field measurement; Transmitting antennas;
Conference_Titel :
Electromagnetic Compatibility (EMC), 2010 IEEE International Symposium on
Conference_Location :
Fort Lauderdale, FL
Print_ISBN :
978-1-4244-6305-3
DOI :
10.1109/ISEMC.2010.5711248
