Evaluation of modified log-periodic antennas for transmission of wide-band pulses

Conference · Thu Jan 31 04:00:00 EST 1991

OSTI ID:6186286

Burke, G J

Modified forms of the long-periodic dipole antenna have been proposed in the literature for radiating a short pulse with minimum distortion and also for a phase response tailored to compress a linear FM pulse. These designs are reviewed, and the antennas are evaluated by numerical modeling with the frequency domain code NEC. Responses for transient input signals are obtained from the NEC solution by inverse transforming and convolution. Antennas modified to obtain a linear phase characteristic are seen to be effective in transmitting an input pulse with minimum distortion. The antennas for compressing a linear FM pulse are somewhat effective but do not appear to work as well as might be expected. 5 refs., 19 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6186286
• Report Number(s): UCRL-JC-105655; CONF-9103123--2; ON: DE91008455
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
DESIGN
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC FIELDS
EQUIPMENT
FREQUENCY DEPENDENCE
MODULATION
PULSES