Title :
Simulative investigation of the effects of a phase center shift onto a Log-Periodic Dipole Array
Author :
Dallmann, Thomas ; Heberling, Dirk
Author_Institution :
Inst. of High Freq. Technol., RWTH Aachen Univ., Aachen, Germany
Abstract :
Recently the effects of a frequency-dependent phase center on the time domain behavior of an antenna were described with an analytical expression for the antenna impulse response. This relation will be compared to the characteristics of a Logarithmic-Periodic Dipole Array (LPDA) within this paper. Similarities between the impulse response of an LPDA and a moving phase center will be identified. The results indicate that the dispersive behavior of an LPDA is caused by this phase center movement.
Keywords :
antenna phased arrays; dipole antenna arrays; log periodic antennas; LPDA; antenna impulse response; frequency-dependent phase center; impulse response; log-periodic dipole array; phase center movement; phase center shift; time domain behavior; Bandwidth; Dipole antennas; Time-domain analysis; Time-frequency analysis; Transfer functions;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2014 Loughborough
Conference_Location :
Loughborough
DOI :
10.1109/LAPC.2014.6996387
