Narrow impedance conversion device

Details Narrow impedance conversion device Narrow impedance conversion device

2006-08-09

2008-11-04

Tan, Vibol (Department: 2819)

Wave transmission lines and networks

Coupling networks

With impedance matching

C333S02100R, C333S121000, C333S125000, C333S166000, C333S238000

Reexamination Certificate

active

07446625

ABSTRACT:
An impedance conversion device has four conductors arranged so that the first and second conductors form a transmission line having a first characteristic impedance, the third and fourth conductors form a transmission line having the first characteristic impedance, the first and third conductors form a transmission line having a second characteristic impedance, and the second and fourth conductors form a third transmission line having the second characteristic impedance. The second and fourth conductors are interconnected at proximate ends through a resistance equal to the first characteristic impedance. The third and fourth conductors are interconnected at proximate ends through a resistance equal to the second characteristic impedance. The lateral dimensions of the impedance conversion device are small enough to permit insertion in a stacked pair line.

REFERENCES:
patent: 4383227 (1983-05-01), de Ronde
patent: 5523622 (1996-06-01), Harada et al.
patent: 5812034 (1998-09-01), Yoshida
patent: 6023209 (2000-02-01), Faulkner et al.
patent: 10-224123 (1998-08-01), None

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