Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1988-08-03
1989-11-14
Laroche, Eugene R.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333135, 333202, 3332191, 333212, H01P 120
Patent
active
048810517
ABSTRACT:
A two, three or four channel multiplexer can be operated in the TE.sub.01.delta. or HE.sub.11.delta. modes, each channel of the multiplexer has one bandpass filter, with each filter usually having a plurality of cavities. One cavity of each filter is a common cavity with all of the other filters of the multiplexer. The common cavity contains one independent dielectric quarter-cut or half-cut image resonator for each filter representing a channel of the multiplexer. Each resonator is mounted on a suitable support the common cavity provides a common junction and contains a loop coupling to couple electromagnetic energy between the various channels. The multiplexer has at least one input and at least one output. Previous microwave multiplexers have a plurality of bandpass filters arranged on a coaxial manifold. With the multiplexer of the present invention, the manifold can be eliminated. Further, at the S-band or L-band, substantial weight and volume savings can be achieved using the multiplexer of the present invention without sacrificing performance. This can be very important for space applications.
REFERENCES:
patent: 4121181 (1978-10-01), Nishikawa et al.
patent: 4423397 (1983-12-01), Nishikawa et al.
Bryant David M. T.
Cameron Richard J.
Tang Wai-Cheung
Com Dev Ltd.
Ham Seung
LaRoche Eugene R.
Schnurr Daryl W.
LandOfFree
Dielectric image-resonator multiplexer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dielectric image-resonator multiplexer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric image-resonator multiplexer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1854773