A phase shifter driving apparatus comprises: a motor; a movable member moved by the motor; a sliding member disposed at a predetermined distance from a reflector and including at least one sliding bar coupled with the movable member to slide in a horizontal direction; and a guide member fixed to the reflector and guiding the movement of the at least one sliding bar. The guide member comprises: a main body, a first supporter extending in a downward direction from a first side of the main body and contacting the reflector, a second supporter extending in a downward direction from a second side of the main body and contacting the reflector, and an insertion portion that protrudes upward from the main body and forms a -shaped insertion hole for inserting the sliding member into the protruding area.

A tri-column antenna array architecture, containing a plurality of active radiating elements that are spatially arranged on a modified reflector structure is disclosed. Radiating elements disposed along (P1 and P2) outlying center lines are movable and provided with compensating radio frequency feed line phase shifters so as to provide broad range of beam width angle variation of the antenna array's azimuth radiation pattern.

A tri-column antenna array architecture, containing a plurality of active radiating elements that are spatially arranged on a modified reflector structure is disclosed. Radiating elements disposed along (P1 and P2) outlying center lines are movable and provided with compensating radio frequency feed line phase shifters so as to provide broad range of beam width angle variation of the antenna array's azimuth radiation pattern.

A radar-based fill level measurement device having a signal generator for the purpose of generating electromagnetic waves, and an antenna for the purpose of emitting the electromagnetic waves into a container, as well as for the purpose of receiving electromagnetic waves reflected out of the container, having a security device for the purpose of verifying the functional capability or improving the measurement quality of the radar-based fill level measurement device, wherein the security device has a reflector and an adjusting device, and is suitably designed to move the reflector between at least a first position, in which it reflects the electromagnetic waves, and a second position, in which it reflects the electromagnetic waves to a reduced degree, and wherein the security device has a drive which acts on the adjusting device.

The invention relates to an antenna device having at least one antenna element. The antenna element is implemented so as to emit electromagnetic radiation in a beam direction advantageously at frequencies in the GHz range and/or receive same from a beam direction. In addition, the antenna element is arranged on a carrier element which is arranged relative to a holding element. In addition, the carrier element is movable relative to the holding element.

The invention relates to an antenna device having at least one antenna element. The antenna element is implemented so as to emit electromagnetic radiation in a beam direction advantageously at frequencies in the GHz range and/or receive same from a beam direction. In addition, the antenna element is arranged on a carrier element which is arranged relative to a holding element. In addition, the carrier element is movable relative to the holding element.

A scan range of a steerable antenna is extended using a reflecting surface or surfaces within the scan range. Various implementations may also include lenses, and the reflecting surface, lenses, or both may include meta-materials. The antenna may be steered to interact with the reflecting surface, lenses, or both to reflect the beam in a direction not possible using the antenna alone. The scan range may be extended in azimuth, elevation, or both, and beam pattern, and antenna freespace impedance may be controlled.

An interface module for a communication device includes a first switch, for forming a first connection between a first feeding point of an antenna of the communication device and one of a first matching component and a first grounding component; a second switch, for forming a second connection between a second feeding point of the antenna and one of a second matching component and a second grounding component; and a third switch, for forming a third connection between a transceiver and one of the first matching component and the first grounding component.

An interface module for a communication device includes a first switch, for forming a first connection between a first feeding point of an antenna of the communication device and one of a first matching component and a first grounding component; a second switch, for forming a second connection between a second feeding point of the antenna and one of a second matching component and a second grounding component; and a third switch, for forming a third connection between a transceiver and one of the first matching component and the first grounding component.

The present invention relates to an imaging device (1) comprising: a first microwave sensor or set of microwave sensors (2), preferably radiometric sensors, each microwave sensor (2) being configured to pick up electromagnetic radiation emitted or reflected by bodies or objects situated in a detection zone of said microwave sensor (2); and reflector means (6) configured to reflect the electromagnetic radiation that can be picked up by the first microwave sensor or the set of microwave sensors (2).

In particular, the reflector means (6) are mounted to move in the detection zone of each microwave sensor (2) in such a manner as to move said detection zone by moving the reflector means (6). The invention also provides a corresponding microwave imaging method.