Communications: directive radio wave systems and devices (e.g. – Radio wave absorber
Patent
1996-04-22
1998-02-24
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radio wave absorber
342 2, 342 4, H01Q 1700
Patent
active
057215510
ABSTRACT:
An apparatus for attenuating traveling wave reflections from a surface, due to an impedance mismatch between the surface and free space. The apparatus includes a resistive element having an impedance between that of the surface and free space. The resistive element is positionable relative to the surface so as to minimize the impedance mismatch between the surface and free space. The resistive element is preferably a resistively graded element, which includes a forward end with an impedance approaching the impedance of the surface. An aft end of the resistively graded element has a high impedance relative to free space. The aft end is positionable sufficiently distant from the surface so as to minimize any traveling wave reflection due to impedance mismatch between the surface and free space.
REFERENCES:
patent: 3633206 (1972-01-01), McMillan
patent: 3721982 (1973-03-01), Wesch
patent: 4003840 (1977-01-01), Ishino et al.
patent: 4084161 (1978-04-01), Manning et al.
patent: 4162496 (1979-07-01), Downen et al.
patent: 4825221 (1989-04-01), Suzuki et al.
patent: 4888590 (1989-12-01), Chase
patent: 4965869 (1990-10-01), Fortney
patent: 5095311 (1992-03-01), Sajiki et al.
patent: 5125992 (1992-06-01), Hubbard et al.
patent: 5202688 (1993-04-01), Hubbard et al.
patent: 5381149 (1995-01-01), Dougherty et al.
patent: 5384571 (1995-01-01), Myers et al.
patent: 5385623 (1995-01-01), Diaz
patent: 5561428 (1996-10-01), Czaja et al.
patent: 5576710 (1996-11-01), Broderick et al.
Rubien Dennis M.
Tran Hung Ban
Tulyathan Pravit
Boeing North American Inc.
Ginsberg Lawrence N.
Silberberg Charles T.
Sotomayor John B.
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