Kathrein-werke Kg

Kathrein Se

Telefonaktiebolaget Lm Ericsson (publ)

Franz Rottmoser

Jens Nita

Christoph Staita

Wilhelm Weitzenberger

Maximilian Obermayer

Dietmar Sieraczewski

Michael Spunt

Wolfgang Sieber

Wilhelm Watzenberger

A mobile radio antenna for connection to at least one mobile base station. The mobile radio antenna comprises a plurality of radiating elements and an antenna array module, which comprises at least a first housing module. The first housing module comprises a first receiving space and a second receiving space, which are separated from each other by at least one partition. A first phase shifter arrangement is situated in the first receiving space. A first duplex filter assembly is situated in the second receiving space. The at least one partition comprises a first opening, wherein a common terminal of the first duplex filter assembly is electrically or electromagnetically connected to a common terminal of the first phase shifter arrangement through the first opening. Furthermore, an antenna-side terminal of the first phase shifter arrangement is electrically connected directly or indirectly to a first terminal of at least one radiating element.

Mobile radio antenna for connection to at least one mobile base station

A high-frequency filter with a coaxial design has at least one resonator with a first inner conductor and an outer conductor housing. The outer conductor housing comprises a housing base, a housing cover which is arranged at a distance from the housing base, and a peripheral housing wall between the housing base and the housing cover. The first inner conductor is galvanically connected to the housing base and extends axially from the housing base in the direction of the housing cover. The resonator comprises a second internal conductor which is galvanically connected to the housing cover and extends axially from the housing cover in the direction of the housing base. The first and/or second inner conductor has an inner conductor bore, and a tuning element is arranged in one inner conductor bore in a thread-free axially movable manner. The tuning element is arranged in a sleeve or bushing and optionally or in addition thereto has an enlarged elastic region.

Threadless tuning elements for coaxial resonators, and method for tuning same

A coaxial filter having a frame construction comprises at least one filter frame, which consists of an electrically conductive medium and comprises a receiving space. A cover arrangement closes the receiving space on all sides. At least one first resonator internal conductor is arranged in the receiving space. The at least one first resonator internal conductor is galvanically connected to a face of the at least one electrically conductive filter frame, and extends therefrom in the direction of another, in particular opposing face of the electrically conductive filter frame, and ends at a distance from the opposing face of the electrically conductive filter frame and/or is galvanically separated from the opposing face of the electrically conductive filter frame.

Coaxial filter having a frame construction and a conductive separating web, where internal resonators can be galvanically connected to either the frame construction or the separating web

An improved high-frequency filter has an adjustment or sliding device for adjusting the coupler bandwidth. The adjustment or sliding device is attached to at least one coupling element. The coupling element is associated with a coupler opening relating to a resonator. The coupling element is related to an associated coupler opening arranged in the resonator such that a means of adjustment and thus the coupling element is adjustable between two extreme settings through adjustment of the adjustment or sliding device in which the coupling element is fully or partially slid into the coupler opening or fully or partially slid out of the coupler opening or is moved or positioned away from the coupler opening.

High frequency filter having a coaxial structure

An improved high frequency filter in a coaxial construction with one or a plurality of resonators has a thread pitch or thread pitch angle of an external thread of a thread-like tuning element which differs from the thread pitch or the thread pitch angle of the internal thread of the thread receiver at least in a partial portion of the length of the internal thread and/or of the external thread. The difference between the thread pitches or the thread pitch angles between the external thread of the thread-like tuning element and the internal thread of the thread receiver is more than 0.5%, and preferably 1% to 5%.

High frequency filter in a coaxial construction, in  particular in the manner of a high frequency separating filter (for example a duplex separating filter) or a bandpass filter or band-stop filter

The invention relates to a high frequency filter of coaxial construction, comprising an outer conductor housing with a housing base and a housing wall, whereby several resonators are embodied in the outer conductor housing, each comprising an inner conductor tube, electrically-coupled to the housing base. At least one part of adjacent resonators are electrically-coupled to each other by means of at least one coupling opening in the outer conductor housing. Said filter is characterized in that one or more recesses are embodied in the housing base, between at least one part of the inner conductor tube of adjacent resonators.

High frequency filter

An improved high frequency filter of coaxial construction comprises one or more resonators having an electrically conductive internal conductor configured as an internal conductive tube and an electrically conductive external conductor. An electrically conductive base electrically interconnects the internal conductor and the external conductor. A cover covers the high frequency filter with respect to the base; and an inner side and outer side. The inner side points toward a free end of the internal conductive tube. A dielectric layer having a dielectric constant Egreater than 2 is arranged between the outer side of the cover and the free end of the internal conductive tube. The radial extent of the dielectric layer substantially covers the cross section of the internal conductive tube at the free end thereof.

Growing community of inventors

Schechen, Germany

Franz Rottmoser