Balanced, impedance matched, coupling device

Details Balanced, impedance matched, coupling device Balanced, impedance matched, coupling device

1989-01-17

1990-04-10

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

333127, H01P 510

Patent

active

049164155

ABSTRACT:
A single-ended to differential coupling device includes an input coaxial transmission line feeding sections of output coaxial transmission line across a break or gap between the outer conductors of the output transmission lines. A shunt resistor across the input transmission line and a series resistor interposed between the center conductors of the output transmission lines provide exact impedance matching in conjunction with plural ferrite toroids disposed about at least one of the transmission lines to prevent shorting of the input signal.

REFERENCES:
patent: 2517968 (1950-08-01), Brown
patent: 3311850 (1967-03-01), Podell
Bosshard et al., Nanosecond Bifilar Wound Transformers, The Review of Scientific Instruments, vol. 38, No. 7, Jul. '67, pp. 942-945.
H. Shuhao, The Balun Family, Microwave Journal, Sep. '87, pp. 227-229.

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