Communications: radio wave antennas – Antennas – Logarithmically periodic
Reexamination Certificate
2005-01-11
2005-01-11
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
Logarithmically periodic
C343S803000
Reexamination Certificate
active
06842156
ABSTRACT:
Frequency-dependent phase center movement in near-field, unshielded, electromagnetic susceptibility testing using a log-periodic dipole can be significantly reduced by bending the rearmost dipole elements forward. Each bent dipole element has an inner portion and an outer portion connected to each other at a bend, the inner portion extending outward from a boom in substantially perpendicular relation to the boom, and the outer portion extending obliquely outward and forward from the bend. The frequency range of the antenna can be extended by forming each element of the longest dipole with an undulating shape when viewed in a direction along the boom.
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Practical Testing in the TC1000 and TC2000 for Radiated Emissions (date and author unknown).
Amplifier Research advertisement entitled “Sizcometry”, 1998.
Bohar Frank A.
Shepherd Donald R.
Amplifier Research Corporation
Howson and Howson
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