Balanced low-pass filter

Details Balanced low-pass filter Balanced low-pass filter

1994-05-13

1995-08-29

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333185, H03H 700

Patent

active

054464277

ABSTRACT:
The present invention relates to a balanced low-pass filter characterized in comprising a pair of input terminals and a pair of output terminals, wherein a pair of coils is connected in series in a negatively coupled manner between a first input terminal and a first output terminal and a pair of coils is connected in series in a negatively coupled manner between a second input terminal and a second output terminal, the connection point between each pair of coils and each end of each coil opposite to the connection point being connected across to the corresponding point of the corresponding pair of coils, with capacitors therebetween, and the coils being wound on the same bobbin in such a manner that each pair of negatively coupled coils is formed in adjacent winding portions.

REFERENCES:
patent: 3340458 (1967-09-01), Keller
patent: 3783417 (1974-01-01), Osada et al.

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