Balun filter apparatus

Details Balun filter apparatus Balun filter apparatus

1979-10-12

1981-11-24

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333 26, 333246, H01P 1203, H01P 510

Patent

active

043027393

ABSTRACT:
The present invention uses two interconnected baluns with the balanced output of one feeding a balanced input of the other. When this filter is used in conjunction with a signal frequency converter, the balun pair not only provides extremely effective bandpass filtering so as to pass the RF frequencies and not the IF frequencies but, in addition, provides a condition which appears to the IF as a nearly open circuit and thus provides a large amount of reflection or return of the IF signals to the signal converter so that the overall signal converter operation is more efficient in combination with the present invention than with any comparable known prior art signal isolating device.

REFERENCES:
patent: 2266501 (1941-12-01), Lindenblad
patent: 2368694 (1945-02-01), Watts, Jr.
patent: 3571722 (1971-03-01), Vendelin
patent: 4193048 (1980-03-01), Nyhus
Bawer et al., "A Printed Circuit Balun for Use with Spiral Antennas", Ire Trans. on Microwave Theory and Techniques, May 1960, pp. 319-325.

Affiliated with

Also associated with

Rating

Balun filter apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Balun filter apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Balun filter apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2177077