Rosenberger Hochfrequeńztechnik Gmbh & Co. Kg

Christian Entsfellner

Benjamin Kaindl

Holger Heuermann

Bernd Rosenberger

Martin Schwab

Thomas Müller

Andreas Fellner

A method for measuring intermodulation produced in a measurement segment of a signal transmission path, by: producing a first HF signal (u(t)) and a second HF signal (u(t)), both having a predetermined frequency progression; feeding the first HF signal (u(t)) and the second HF signal (u(t)) to the signal transmission path, wherein an intermodulation signal is produced, which intermodulation signal has a first intermodulation signal component (u(t)) produced in an input segment of the signal transmission path and a second intermodulation signal component (u(t)) produced in the measurement segment of the signal transmission path; producing a compensation signal (u(t)) in accordance with the first intermodulation signal component (u(t)) produced in the input segment; introducing the compensation signal (u(t)) into the signal transmission path in order to reduce or cancel out the first intermodulation signal component (u(t)). The invention further relates to a measuring device for performing said method.

Method for measuring passive intermodulation and measuring device

A method for intermodulation measurement for locating points in a signal transmission path for a high-frequency signal that are faulty with regard to HF transmission properties of the signal transmission path, by generating a first HF signal u, having a carrier frequency fand a digital signal umodulated thereon; generating a second HF signal uhaving a frequency f; introducing the first HF signal uand the second HF signal uinto the signal transmission path at a predetermined introduction point; receiving an intermodulation product, which is generated in the signal transmission path from the first HF signal and the second HF signal at at least one faulty point, as an intermodulation product signal u; recovering a digital signal ufrom u; and determining a time shift tbetween the digital signal uand the recovered digital signal u. The invention further relates to a measuring device for performing this method.

Method and measuring device for intermodulation measurement

A vectorial network analyzer (VNA) having at least one signal generator generating a particular RF output signal, and having n measuring ports, wherein an RF coupler is assigned to each measuring port and couples out an RF signal by running into the particular port from the outside, wherein the at least one signal generator is arranged and designed in such a manner that the latter supplies a particular RF output signal to at least one measuring port as an RF signal running out to the outside. Provision is made for an amplitude and/or a phase to be stored for the RF output signal for at least one signal generator in a retrievable manner on the basis of at least one parameter in a parameter field, wherein the RF signal generator is designed in such a manner that the latter generates the amplitude and/or phase of the RF output signal in a reproducible manner on the basis of at least this one parameter.

Vectorial network analyzer

Vectorial network analyser

A switch for electrically connecting at least two lines as and when required, having a housing having at least two terminals for the lines to be connected to, having a first conductor connected to a first terminal and a second conductor connected to a second terminal and having a connecting conductor which can be brought into contact with the two conductors by an actuating device in order to close the switch, wherein at least one of the conductors and the connecting conductor are in contact indirectly via a dielectric when the switch is in the closed state.

Switch

A method for locating defects in a signal transmission path by generating an HF signal having a frequency fand a signal modulated by a predetermined type of modulation; generating a HF signalhaving a frequency f; generating an intermodulation product in the form of an intermodulation product signal having frequency ffrom HF signalsandintroducing the HF signalsandinto the signal transmission path at an introduction point; receiving an intermodulation product from the HF signalsandat a defective point and reflected back and corresponding to the generated intermodulation product, in the form of an intermodulation product signal; determining a time lag tbetween the generated intermodulation product signal and the received intermodulation product signal by a cross-correlation and calculation of a length L between the introduction point and the place of signal reflection, from the time lag t.

Method for locating defective points in a high frequency (HF) signal transmission path

A coaxial plug and socket connector includes a coaxial plug and a bulkhead socket. The socket has: an outer conductor shell, and coaxial cable and mating ends. The shell inside wall, adjacent the mating end, has a latching edge groove. The plug has: an outer conductor shell having mating and coaxial cable ends, a latching sleeve fitting round and axially displaceable relative to the plug shell. The latching sleeve has axial slots at its mating end forming elastically resilient latching tongues having, at their mating ends, a latching edge extending radially outwardly to latch onto the socket groove latching edge. An unlocking sleeve surrounding and displaceable axially relative to the latching sleeve has a ramp sloping radially outwardly toward the cable end. The ramp cooperates with a groove on an inside face of the unlocking sleeve so unlocking sleeve displacement relative to the latching sleeve bends the tongues inwardly.

Bulkhead socket for a co-axial plug and socket connector

In a co-axial insertion-connected connector having quick-action locking mechanism, designed to receive a complementary insertion-connected connector, the connectors capable of connecting together by a coupling member belonging to the locking mechanism, and each having a center-conductor and an outer-conductor, a contact member being arranged in the co-axial insertion-connected connector such that when the connectors are plugged together, the contact member is arranged between the outer-conductor of the connectors, the arrangement made so that the contact member takes the form of a sleeve, the sleeve making electrical contact to give a contact region at the end-face of the outer-conductor of the complementary co-axial insertion-connected connector and the sleeve making electrical contact with the outer-conductor of the co-axial insertion-connected connector, and in such a way that an elastic length-adjusting member abuts against the outer-conductor of the co-axial insertion-connected connector and is situated in an opposite position against the sleeve.

Coaxial insertion connected connector having quick action locking mechanism

A co-axial plug has a cylindrical outer-conductor part having mating co-axial cable ends. A latching sleeve fits around and is axially displaceable relative to the shell outer-conductor. Opposite ends of a spring are supported against the shell outer-conductor part and the latching sleeve to pre-load the latching sleeve toward the co-axial cable end of the shell outer-conductor part. Axial slots at the latching sleeve mating end form elastically resilient latching tongues having, at their ends, a latching edge extending in a radially outward direction. An unlocking sleeve surrounding the latching sleeve is displaceable axially relative to the latching sleeve having a ramp extending outwardly and sloping toward the cable end. The ramp co-operates with a correspondingly bevelled groove on the unlocking sleeve inside face so displacement of the unlocking sleeve relative to the latching sleeve toward the co-axial cable end bends the latching tongues inwardly.

Growing community of inventors

Fridolfing, Germany

Christian Entsfellner