The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1998
Filed:
Mar. 29, 1996
Richard J Cameron, High Wycombe, GB;
Com Dev Ltd., Cambridge, CA;
Abstract
A microwave filter has a plurality of resonant cavities with each cavity containing a dielectric resonator. There are self-equalizing probes or self-equalizing apertures located between some of the cavities. A circulator is connected to an output of the filter. The circulator has an input/output which is connected to an equalizer. The equalizer contains a dielectric resonator that is slightly different from the dielectric resonators of the filter to permit the equalizer to be tuned at a slightly different frequency from the filter. The equalizer and self-equalizing probes or apertures are capable of being operated to reduce a dispersive slope of the filter. The filter can operate in a single mode or a dual mode. The electrical performance of the filter is superior to prior art filters, particularly in the wideband versions because the dispersive slope is reduced.