A method of supporting establishment of a path from a source node to a destination node in wireless mesh network, said path comprising at least one intermediate node, said method comprising the steps of receiving, by an intermediate node, a synchronous notification message, from a neighbouring node, for synchronizing said intermediary node with said neighbouring node, and establishing, by said intermediate node, in response to said receipt of said synchronous notification message, a reciprocal path between said intermediate node and said neighbouring node, wherein said reciprocal path is used in a path between said source node and said destination node. A corresponding node device arranged for performing the method is also presented herein.

A measuring system for determining phase differences of antenna element signals of antenna elements of an antenna array under test is provided. The measuring system comprises a signal generating means, which is configured to provide a measuring signal to the antenna array under test over the air and receiving means configured to measure the antenna element signals, resulting from receiving the measuring signal by the antenna elements of the antenna array under test and determine the phase difference of the antenna element signals.

A measuring system for determining a beamforming quality of an antenna array signal of an antenna array of a device under test. The measuring system comprises a measuring device configured to receive an antenna array signal, and to measure the antenna array signal and to determine a beamforming signal quality thereof. The antenna array signal is wirelessly transmitted to the receiver by the antenna array of a device under test. The measuring system further comprises a positioning unit configured to position the device under test in successive predefined orientations. The measuring device is configured to receive and measure the antenna array signal successively in each of the predefined orientations.

A system for measuring or characterizing a multi-element antenna having at least two antenna elements comprises a vector network analyzer with at least two input/output ports. Each input/output port of the vector network analyzer is connected to one antenna element of the multi-element antenna. The vector network analyzer has generator means for generating waves at each of its input/output ports, which are coherent to each other.

A solid state impedance tuner or impedance tuner system including a housing structure and at least two solid state tuner modules electrically combined and disposed in one package within the housing structure. Each tuner module includes at least one solid state control element. Another embodiment is directed to an impedance tuner module card configured in a standardized system architecture. The card includes a chassis board, and at least one solid state tuner module integrated on the card and supported on or by the chassis board, each module including at least one solid state control element. Methods for calibrating a solid state impedance tuner that includes at least two solid state tuner modules combined in one package are disclosed.

A system for measuring or characterizing a multi-element antenna having at least two antenna elements comprises a vector network analyzer with at least two input/output ports. Each input/output port of the vector network analyzer is connected to one antenna element of the multi-element antenna. The vector network analyzer has generator means for generating waves at each of its input/output ports, which are coherent to each other.

A measuring system for determining phase differences of antenna element signals of antenna elements of an antenna array under test is provided. The measuring system comprises a signal generating means, which is configured to provide a measuring signal to the antenna array under test over the air and receiving means configured to measure the antenna element signals, resulting from receiving the measuring signal by the antenna elements of the antenna array under test and determine the phase difference of the antenna element signals.

A measuring system for determining a beamforming quality of an antenna array signal of an antenna array of a device under test. The measuring system comprises a measuring device configured to receive an antenna array signal, and to measure the antenna array signal and to determine a beamforming signal quality thereof. The antenna array signal is wirelessly transmitted to the receiver by the antenna array of a device under test. The measuring system further comprises a positioning unit configured to position the device under test in successive predefined orientations. The measuring device is configured to receive and measure the antenna array signal successively in each of the predefined orientations.

A solid state impedance tuner or impedance tuner system including a housing structure and at least two solid state tuner modules electrically combined and disposed in one package within the housing structure. Each tuner module includes at least one solid state control element.

Another embodiment is directed to an impedance tuner module card configured in a standardized system architecture. The card includes a chassis board, and at least one solid state tuner module integrated on the card and supported on or by the chassis board, each module including at least one solid state control element.

Methods for calibrating a solid state impedance tuner that includes at least two solid state tuner modules combined in one package are disclosed.

A solid state impedance tuner or impedance tuner system includes a control element array with a plurality of solid state control elements configured to be turned on simultaneously to achieve a desired impedance state. The control element array comprises N solid state control elements arranged along an RF transmission line. A controller selectively turns on or off each control element by application of a control signal to vary an impedance presented by the control element array, Another aspect is an impedance tuner module card configured in a standardized system architecture, with a chassis board, and at least one solid state tuner module integrated on the card A chassis electrical connector connected to the tuner module is configured for connection to a corresponding backplane connector. Methods for calibrating a solid state impedance tuner that includes at least two solid state tuner modules combined in one package are disclosed.