Communications: directive radio wave systems and devices (e.g. – Radio wave absorber – With particular geometric configuration
Reexamination Certificate
2006-09-05
2006-09-05
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Radio wave absorber
With particular geometric configuration
C342S001000, C342S173000
Reexamination Certificate
active
07102562
ABSTRACT:
A radio frequency anechoic test chamber (100) includes a test stand (118) that includes a relatively small diameter, mechanically robust, telescoping lower vertical support column (202), a large diameter thin walled middle vertical support column (204) that includes a sheet or coating of absorbing material (224) disposed proximate the circumference of the thin walled middle support column, (204) and an upper support member (206). The radio frequency anechoic test chamber provides improved ripple performance that allows more accurate measurements of the gain pattern of radio frequency equipment.
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Marion Baggett & Tom Thomas; “Obtaining High Quality RCS Measurements with a Vary Large Foam Column”; 6 pages.
Emerson & Cuming Microwave Products; “ECCOSORB VHP-NRL: Very High Performance Broadband Pyramidal Absorber”; No. EB-100 Technical Bulletin; 5 pages.
Krenz Eric L.
Moller Paul J.
Phillips James P.
Smith Hugh K.
Barker Matthew M.
Chen Sylvia
Motorola Inc.
Tarcza Thomas H.
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