Communications: radio wave antennas – Antennas – Antenna components
Patent
1984-04-23
1986-08-05
Lieberman, Eli
Communications: radio wave antennas
Antennas
Antenna components
H01Q 1502
Patent
active
046046291
ABSTRACT:
An array of axially oriented thin resistive elements having a certain value of conductance or resistance in the axial direction is supported in dielectric material. For a wave at normal incidence, the apparatus is essentially invisible. For a wave incident at oblique angles in the E plane, current is induced in the resistive elements and dissipative attenuation occurs. The attenuation does not rely on resonance so that the apparatus operates over a wide frequency band and does not require tight dimensional tolerances.
REFERENCES:
patent: 4169268 (1979-09-01), Schell et al.
patent: 4344077 (1982-08-01), Chekroun et al.
patent: 4495506 (1985-01-01), Sasser et al.
patent: 4518966 (1985-05-01), Sadones
Agovino F. R.
Hazeltine Corporation
Lieberman Eli
Onders E. A.
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