Electromagnetic wave absorbing element

Details Electromagnetic wave absorbing element Electromagnetic wave absorbing element

1988-11-23

1992-03-10

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radio wave absorber

342 4, H01Q 1700

Patent

active

050953117

ABSTRACT:
An electromagnetic absorbing element is comprised of an elongated rectangular body of dielectric material having a bottom portion attachable to an inner wall of an electromagnetically dark room, and peripheral elongated faces extending vertically from the bottom portion such that a set of the absorbing elements can be arranged in rows-and-columns on the wall. An electroconductive ink film is formed on the peripheral faces of body and has a gradually changing surface resistivity decreasing exponentially lengthwise of the peripheral face toward the bottom portion. The incident electromagnetic wave normal to the wall provided with the rows-and-columns of absorbing elements is absorbed by a lattice of the electroconductive films during the travel along the electroconductive films.

REFERENCES:
patent: 2771602 (1956-11-01), Kuhnhold
patent: 2828484 (1958-03-01), Skellett
patent: 2985880 (1961-05-01), McMillan
patent: 3124798 (1964-03-01), Zinke
patent: 3234549 (1966-02-01), McMillan
patent: 3315259 (1967-04-01), Wesch
patent: 3315261 (1967-04-01), Wesch
patent: 3440655 (1969-04-01), Wesch et al.
patent: 3441933 (1969-04-01), Tuinila et al.
patent: 3453620 (1969-07-01), Fleming et al.
patent: 3509568 (1970-04-01), Manning et al.
patent: 3521201 (1970-07-01), Veteran
patent: 3596270 (1971-07-01), Fukui
patent: 3721982 (1973-03-01), Wesch
patent: 3806928 (1974-04-01), Costanza
patent: 3887920 (1975-06-01), Wright et al.
patent: 4012738 (1977-03-01), Wright
patent: 4118704 (1978-10-01), Ishino et al.
patent: 4162496 (1979-07-01), Downen et al.
patent: 4170010 (1979-10-01), Reed
patent: 4327364 (1982-04-01), Moore
patent: 4531128 (1985-07-01), Mensa et al.
Patent Abstracts of Japan, vol. 9, No. 10 (E-290) [1733], Jan. 17, 1985, Mitsubishi Denki KK.

Affiliated with

Also associated with

Rating

Electromagnetic wave absorbing element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic wave absorbing element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic wave absorbing element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2287338