TY - GEN
T1 - Aperture efficiencies of impulse radiating antennas
AU - Buchenauer, C. Jerald
AU - Tyo, J. Scott
AU - Schoenberg, Jon S.H.
N1 - Publisher Copyright:
© 1999 Kluwer Academic/Plenum Publ.
PY - 1998
Y1 - 1998
N2 - A concept of aperture efficiency is introduced for the purpose of comparing and optimizing the performance of impulse radiating antennas (IRAs). The aperture efficiencies of popular lens and reflector IRAs are computed as the ratios of peak radiated power densities on boresight compared with that produced by an ideal IRA with an aperture of equal area and equal total input power. Loss of aperture efficiency occurs through two distinct mechanisms: from power that falls outside the aperture and is lost; and from nonuniform power and polarization distributions within the aperture. Both loss mechanisms are addressed, and means for increasing efficiencies are identified. Aperture efficiencies approaching 100% are feasible in TEM-horn arrays and similar structures.
AB - A concept of aperture efficiency is introduced for the purpose of comparing and optimizing the performance of impulse radiating antennas (IRAs). The aperture efficiencies of popular lens and reflector IRAs are computed as the ratios of peak radiated power densities on boresight compared with that produced by an ideal IRA with an aperture of equal area and equal total input power. Loss of aperture efficiency occurs through two distinct mechanisms: from power that falls outside the aperture and is lost; and from nonuniform power and polarization distributions within the aperture. Both loss mechanisms are addressed, and means for increasing efficiencies are identified. Aperture efficiencies approaching 100% are feasible in TEM-horn arrays and similar structures.
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U2 - 10.1109/UWBSP.1998.818943
DO - 10.1109/UWBSP.1998.818943
M3 - Conference contribution
AN - SCOPUS:85051857347
T3 - Ultra-Wideband Short-Pulse Electromagnetics 4
SP - 91
EP - 108
BT - Ultra-Wideband Short-Pulse Electromagnetics 4
A2 - Heyman, Ehud
A2 - Mandelbaum, Benjamin
A2 - Shiloh, Joseph
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th Conference on Ultra-Wideband Short-Pulse Electromagnetics, UWBSP 1998
Y2 - 14 June 1999 through 19 June 1999
ER -