Tunable bandpass filter

Details Tunable bandpass filter Tunable bandpass filter

H - Electricity

01

P

H01P 1/207 (2006.01) H01P 1/208 (2006.01) H01P 7/10 (2006.01)

Patent

CA 2313925

A method and apparatus for reducing the size of microwave (or millimeter wave) dielectric resonator filters and for tuning the filter by inserting tuning screw within the dielectric itself. The filter includes a metallic housing that encloses a plurality of cavities, and each cavity contains a dielectric resonator whose top and bottom surfaces are flush with the top and bottom walls of the metallic structure. Due to the continuity and uniformity of the electric field generated in the y-axis of the dielectric, the filter's performance response becomes independent of height. This novel design allows for substantial reduction in cavity size without appreciably dropping the Q factor. Such continuity and uniformity of the electric field also allows for openings to be made parallel to the y-axis and inside the dielectric resonator, wherein tuning screws are inserted to selectively adjust the frequency. Other aspects of the invention include alternative methods for electromagnetic coupling in, within, and out of the filter; methods for reducing the machining accuracy by creating a small air gap at one end of the resonator; and methods for reducing the propagation of high modes by alternating the shapes or orientation of the resonators within the filter.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1811959