Abstract: The present disclosure relates to a measurement system comprising a vector analyzer (VNA), at least one remote frontend, and a cable connection connecting the at least one frontend to the VNA. The VNA comprises at least one signal source generating a RF signal and providing the RF signal via the cable connection to the at least one remote frontend. The remote frontend includes at least one measurement port for connecting a device under test (DUT) and transmitting the RF signal to the DUT, and at least one directive element. The at least one directive element couples out a transmitted portion of the RF signal and a reflected portion of the RF signal received at the at least one measurement port for measuring the transmitted portion and the reflected portion of the RF signal. The remote frontend further includes at least one dedicated calibration circuit connected between the at least one directive element and the at least one measurement port.

Abstract: A feed network arrangement for generating a multi-antennae signal includes a plurality of coupler devices coupled to one another in waveguide technique, and a plurality of adjustable length of line devices. At least one of the plurality of adjustable length of line devices is coupled to at least one of the plurality of coupler devices, where the one of the plurality of adjustable length of line device is configured to calibrate an electrical length of a supply line of the at least one of the plurality of coupler devices, In addition, the plurality of coupler devices are arranged such that a plurality of inputs of the feed network arrangement are disposed on a first side of the feed network arrangement and a plurality of outputs of the feed network arrangement are disposed on a second side of the feed network arrangement.

Abstract: A feed network arrangement for generating a multi-antennae signal includes a plurality of coupler devices coupled to one another in waveguide technique, and a plurality of adjustable length of line devices. At least one of the plurality of adjustable length of line devices is coupled to at least one of the plurality of coupler devices, where the one of the plurality of adjustable length of line device is configured to calibrate an electrical length of a supply line of the at least one of the plurality of coupler devices, In addition, the plurality of coupler devices are arranged such that a plurality of inputs of the feed network arrangement are disposed on a first side of the feed network arrangement and a plurality of outputs of the feed network arrangement are disposed on a second side of the feed network arrangement.

Abstract: A metamaterial is proposed which is composed of base elements having six ports with two ports, respectively. The base element further comprises four nodes connected with a central point via inductors, to which nodes the ports are connected via capacitors.

Abstract: A metamaterial is proposed which is composed of base elements having six ports with two ports, respectively. The base element further comprises four nodes connected with a central point via inductors, to which nodes the ports are connected via capacitors.