N-port coupler

Details N-port coupler N-port coupler

1983-05-31

1985-06-25

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333128, 333238, H01P 516, H01P 518

Patent

active

045256900

ABSTRACT:
An n-port high frequency coupler for coupling opposite strip-type ports (10a, 10c) and (20a, 20c). The coupler includes transmission line stubs (10b, 10d and 20b, 20d), each having a width less than the width of the ports and being connected at one end to the corresponding port and electrically connected at the opposite end, in a central zone (40) of the coupler to the other stubs. A resonant transmission line loop is coupled to the stubs at locations which are symmetrically-disposed with respect to the central zone. The loop has a width which is substantially equal to the width of the ports and a mean length effecting establishment of a resonant frequency just below the passband of the coupler.

REFERENCES:
patent: 3619787 (1971-11-01), Salzberg
patent: 4328471 (1982-05-01), Quine

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