Commscope Italy S.r.l.

Outdoor Wireless Networks LLC

Andrew Wireless Systems Gmbh

Frantisek Ondracek

Martin Kufa

Giuseppe Resnati

Lukás Matrka

Jaromir Peroutka

Peter Schmid

Libor Strachon

Roman Hofman

Jiri Kasik

Methods and apparatuses for reducing passive intermodulation distortion arising from a joint attaching conductors by forming the joint with a single metal or covering the joint with a single layer of metal having a thickness greater than a skin depth of the frequency of signals propagating through the joint.

Methods and apparatuses for reducing passive intermodulation distortion in transmission lines

Resonant cavity filters include a conductive housing having a floor. A dielectric resonator is mounted to extend upwardly from the floor. The dielectric resonator has a cylindrical body with a longitudinal bore that defines an inner sidewall. The longitudinal bore has a variable transverse cross-sectional area. A threaded dielectric fastener is at least partially inserted within the longitudinal bore of the cylindrical body.

Resonant cavity filter comprising a dielectric resonator mounted to a conductive housing by a dielectric fastener located within a longitudinal bore of the dielectric resonator

Resonant cavity filters include a conductive housing having a floor. A dielectric resonator is mounted to extend upwardly from the floor. The dielectric resonator has a cylindrical body with a longitudinal bore that defines an inner sidewall. The longitudinal bore has a variable transverse cross-sectional area. A threaded dielectric fastener is at least partially inserted within the longitudinal bore of the cylindrical body. The dielectric resonator may have a protrusion that extends inwardly from the inner sidewall.

Resonant cavity filter comprising a dielectric resonator mounted to a hollow conductive body by a threaded dielectric fastener

A modular filter system includes a front panel, a back panel, and a multiband combiner coupled to the front panel, the combiner including an antenna connector and filter connectors. The modular filter system further includes filter modules separate from the combiner, each filter module including first and second connectors to pass respective frequency bands, and a combiner connector to pass the frequency bands. Each filter module is configured to duplex, combine, or split first signals in the first frequency band and second signals in the second frequency band. The combiner connector of each filter module is coupled to a respective filter connector using a respective cable. The modular filter system further includes a fixing system comprising bars and plates, the bars coupled to the front and back panels using fasteners, wherein the bars and plates are configured to secure the filter modules between the combiner and the back panel.

Modular filter/duplexer system

Growing community of inventors

Pardubice, Czechia

Frantisek Ondracek