Abstract: One or more rods pass through the corrugations of first and second folded down flaps and across the divide between adjacent edges of the flaps of a cardboard box blank to hold the flaps together and in a closed position.

Abstract: The invention relates to a compact power combiner/divider.

Abstract: A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.

Abstract: A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.

Abstract: A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanism provide an in-line coupling factor between respective resonators of electrically adjacent dielectric resonator cavities. At least one cross-coupling device provides cross-coupling between respective resonators of non-adjacent dielectric resonator cavities. A magnitude and sign of the in-line coupling factors and the cross-coupling factor, provide a dielectric resonator filter, for which a desired amplitude and phase response can be provided.

Abstract: A multiple bandpass filter is disclosed having a common input intercoupling a plurality of parallel single bandpass filters which are further intercoupled to provide a composite signal at a common output. The multiple bandpass filter of the present invention is appropriate for application to ceramic filters. In a preferred embodiment, the multiple bandpass filter of the present invention has a common input, parallel distributed resonator single bandpass filters, and a common output, all integral to the same ceramic structure. The multiple bandpass filter comprises a ceramic block having a plurality of rows of holes extending from the top of the bottom of the block and a slot extending from the top to the bottom of the block, separating the rows. The block and interior of the holes and slot are substantially covered with conductive material. An area near one end of each of the holes is bare ceramic.