Non-radiating coaxial outlet
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United States of America Patent
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Jul 21, 1987
Grant Date -
N/A
app pub date -
Jul 21, 1986
filing date -
Jul 21, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A coaxial cable coupler is disclosed which includes a first section for coupling to the coaxial cable of a utilization device and a second section for coupling to the coaxial cable of a communications system. Both the first and second sections are provided with cavities therein. The cavity in the second section houses an insulating sleeve which in turn encloses a contact assembly for making contact to and electrically connecting the inner conductors of the coaxial cables of the communications system and utilization device. The first cavity is dimensioned and configured to function as a waveguide having a cutoff wavelength which is substantially below the operating wavelength spectrum of the system, thereby establishing a very deep bidirectional high pass filter at the open coupler. As a result, when the utilization device is disconnected, radiation from or to the coupler is prevented to thereby prevent environmental electromagnetic pollution and unauthorized wireless access from and to the system.
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