Method and apparatus for multiplexing broad band high frequency

Details Method and apparatus for multiplexing broad band high frequency Method and apparatus for multiplexing broad band high frequency

1989-10-10

1991-10-01

LaRoche, Eugene R.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333116, 333132, 333134, 370123, H03H 746

Patent

active

050537334

ABSTRACT:
A method and apparatus for multiplexing broad band high frequency signals using either a parallel line contra-directional microwave coupler or forward coupling microwave coupler. A first source of signals comprising multiple decades of frequencies below a first frequency is connected to the through-arm of the coupler and a second source of signals comprising a higher band of frequencies is connected to the coupling arm of the coupler. By using a coupler designed for operation at the frequencies of the signals from the second source, the loss of signal strength from the second source is significantly reduced while the loss of signal strength from the first source is only slightly greater than that incurred in prior known microwave multiplexers.

REFERENCES:
patent: 4061990 (1977-12-01), Veno
patent: 4287605 (1981-09-01), Dydyk
patent: 4376921 (1983-03-01), Dickens et al.
patent: 4418430 (1983-11-01), Halderman
patent: 4605902 (1986-08-01), Harrington
patent: 4808913 (1989-02-01), Grace

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