Radiation shielding apparatus for a radio transmitting device

Details Radiation shielding apparatus for a radio transmitting device Radiation shielding apparatus for a radio transmitting device

1993-02-01

1994-08-02

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455 90, 455117, 455128, 455129, 379 59, 379437, 379447, 343702, 343841, H04B 138

Patent

active

053353668

ABSTRACT:
A radiation shielding apparatus for a radio transmitting device, such as a cellular phone. A radiation shield is disposed between a radiation component and a user to prevent unwanted exposure of the user to emanating radiation from the radiation emanating component. The cellular telephone radio transmitting device may be a hand-held cellular telephone, and the radiation emanating component may be an internal or external antenna or any other electromagnetic radiation source, such as a transmitter. The radiation shield can be retrofitted to an existing cellular telephone, or may be designed specific for different models of cellular phones. The radiation shield can absorb, block and/or reflect electromagnetic wave radiation to shield the user of such cellular telephones from unwanted and possibly harmful exposure to electromagnetic wave radiation.

REFERENCES:
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patent: 3196442 (1965-07-01), Leffelman et al.
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patent: 4471493 (1984-09-01), Schober
patent: 4845772 (1989-07-01), Metroka et al.
patent: 5170173 (1992-12-01), Krenz et al.
"Detecting Microwave-Radiation Hazards", 1961, Electronics World, vol. 65, No. 6, pp. 31-33 and 78-79.
"McCaw to Study Cellular Phones as Safety Questions Affect Sales" Wall St. Journal, Jan. 29, 1993.

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