Evaluation of modified log-periodic antennas for pulse transmission
The log-periodic dipole (LPD) antenna can operate over a very wide frequency band, limited only by mechanical constraints. However, the antenna is known to introduce significant distortion when radiating a transient signal, due to its nonlinear phase versus frequency response. A modified design has been proposed by Yatskevich and Fedosenko to reduce distortion of a pulse by making the phase response linear or, more generally, to develop a filter characteristic for compressing a signal such as a linear FM pulse. Some results from numerical modeling of these linear-phase and FM-compression antennas are presented here to evaluate their effectiveness. 4 refs., 16 figs., 5 tabs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5969841
- Report Number(s):
- UCRL-ID-106868; ON: DE91011775
- Country of Publication:
- United States
- Language:
- English
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