Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1984-10-16
1987-06-30
LaRoche, Eugene R.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333212, 333230, H01P 1205
Patent
active
046774025
ABSTRACT:
A microwave filter which is optimized to reduce its dimensions, weight, cost, and manufacturabiity includes a filter body which is preferably manufactured by pressure die-casting of an aluminum alloy. In the filter body are formed a plurality of cavities in which resonators as well as tuning and connection screws are located. The cavities are so located with respect to each other that a line which joins the centers thereof appears as the series of connected line segments which are inclined with respect to each other at angles which exceed 90.degree.. To compensate the filter for the relatively larger coefficient of expansion associated with the use of die-castable alloys, the resonators and tuning screws employ materials which are different than that used in the filter body. Electrical losses are minimized by varying, from cavity to cavity, the ratio of the diameter of the cavity to that of the resonator. The weight of the filter is further reduced by cavities or voids which are formed therein.
REFERENCES:
patent: 4216448 (1980-08-01), Kasuga et al.
patent: 4291288 (1981-09-01), Young et al.
Pfitzenmuier G.; "Linear Phase Microwave Bandpass Filter"; 1973 European Microwave Conference; vol. 1, Brussels Belgium; Sep. 4-7, 1973; 4 pages.
Cesani Enrico
Forti Andriano
LaRoche Eugene R.
Lee Benny
Telettra-Telefonia Elettronica e Radio S.p.A.
LandOfFree
Pluricavities microwave filter having cavities oriented in a saw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pluricavities microwave filter having cavities oriented in a saw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pluricavities microwave filter having cavities oriented in a saw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-450210