A system and method for ESA quadrant mechanical reconfiguration functions to shift some of the complexity from algorithmic manipulation of received radar data to mechanical transformation of a simple panel structure to achieve desired performance in a desired ESA boresight. The system receives a rotation trigger based on an external event such as altitude and mission and causes two or more simple ESA panels to rotate from a first azimuthal position to a second common azimuthal position without stopping at an intermediate azimuth. Once positioned, each individual rotational ESA panel is combined to function as a single aggregate ESA enabling desired performance in field of view, resolution, and range along a common boresight.

A radar level gauge system for determining a topographic property of a product, comprising a transceiver; a signal transfer element coupled to the transceiver and configured to emit an electromagnetic transmit signal from the transceiver in an emission direction; a propagating member for propagating the transmit signal towards the surface of the product and a reflection signal back towards the transceiver, the propagating member being movably arranged in relation to the signal transfer element and configured to deflect the transmit signal; an elastic system coupled to the signal transfer element and to the propagating member, and arranged to define at least one property of an oscillating movement of the propagating member in relation to the signal transfer element; an actuator arranged to initiate the oscillating movement; and processing circuitry coupled to the transceiver for determining the topographic property based on the transmit signal and the reflection signal.

The present invention relates to a feed-motion antenna device. Provided is an antenna for receiving data from low Earth orbit satellites, the antenna comprising a fixedly mounted antenna reflector, a moveable feed, a feed positioner configured to move the feed in the focal plane of the antenna reflector, the feed positioned having a primary rotation axis and an auxiliary rotation axis, and a control device configured to send control signals to the feed positioner. The primary rotation axis of the feed positioner passes through the center of the antenna reflector and the primary rotation axis is perpendicular to the focal plane of the antenna reflector; the auxiliary rotation axis of the feed positioner is parallel to the primary rotation axis. The feed positioner comprises an equal-arm structure comprising a first arm and a second arm, and each arm is arranged in a plane perpendicular to the primary and auxiliary rotation axes. The first arm is connected at one its end to the primary rotation axis and adapted to be rotated around the primary rotation axis, the feed is connected to an end of the second arm, and the first arm and the second arm are connected to each other at the auxiliary rotation axis and are adapted to be rotated with respect to each other. The diameter of the antenna reflector is at least 1.5 m, and the focal length of the antenna reflector is at least 1.0 m. Further provided is a method for receiving satellite data by means of the offered antenna.

An electronic device is provided. The electronic device includes a first housing including a first conductive portion, a second housing slidably coupled to the first housing at a designated round-trip distance and configured to include a second conductive portion overlapping at least a part of the first conductive portion in a slide-in state, a wireless communication circuit disposed in the electronic device and electrically connected to the first conductive portion, and at least one electrical connection structure disposed in a second space of the second housing and configured to electrically connect the second conductive portion to the first conductive portion in the slide-in state. The wireless communication circuit may be configured to transmit and/or receive a radio signal in at least one frequency band through the first conductive portion and the second conductive portion in the slide-in state.

An electronic device is provided. The electronic device includes a first housing including a first conductive portion, a second housing slidably coupled to the first housing at a designated round-trip distance and configured to include a second conductive portion overlapping at least a part of the first conductive portion in a slide-in state, a wireless communication circuit disposed in the electronic device and electrically connected to the first conductive portion, and at least one electrical connection structure disposed in a second space of the second housing and configured to electrically connect the second conductive portion to the first conductive portion in the slide-in state. The wireless communication circuit may be configured to transmit and/or receive a radio signal in at least one frequency band through the first conductive portion and the second conductive portion in the slide-in state.

An adjustable antenna is provided with a linear central support defining a helical axis, and first and second support disks extending radially outward from the central support. The support disks are rotatable around the central support and the second support disk is translatable along the linear central support. An antenna element is coupled to the first and second support disks to define a helical path around the central support between the first and second support disks. An adjustment component is capable of translating one of the first and second support disks along the linear central support and of rotating at least one of the support disks around the central support to change the helical pitch of the antenna element.

An adjustable antenna is provided with a linear central support defining a helical axis, and first and second support disks extending radially outward from the central support. The support disks are rotatable around the central support and the second support disk is translatable along the linear central support. An antenna element is coupled to the first and second support disks to define a helical path around the central support between the first and second support disks. An adjustment component is capable of translating one of the first and second support disks along the linear central support and of rotating at least one of the support disks around the central support to change the helical pitch of the antenna element.

A hosted multi-reflector antenna system includes a primary reflector, a subreflector, an aperture, a feed structure and an anti-jam housing. The feed structure includes an electronically steered antenna (ESA). The subreflector directs a reflected beam between a primary reflector and an ESA, and the anti-jam housing encloses the subreflector and the ESA. The antenna system is thermo-elastically decoupled and thermally self-sufficient, accommodates thermal dissipation of the feed structure, and can maintain a precise antenna alignment.

The present disclosure provides a phase shifting device and a base station antenna. The phase shifting device comprises a driving module, a transmission rack plate, and a plurality of annular phase shifters. The driving module comprises a transmission rod. The transmission rack plate comprises a transmission nut, through which the transmission rack plate is pivotally connected to the transmission rod of the driving module. The plurality of annular phase shifters are disposed on the periphery of the transmission rack plate at intervals and are respectively engaged with the transmission rack plate. The rotation of the transmission rod drives the transmission nut to move back and forth on the transmission rod, and along with the back and forth movement of the transmission nut, the transmission rack plate drives the plurality of annular phase shifters to rotate.

The present disclosure provides a phase shifting device and a base station antenna. The phase shifting device comprises a driving module, a transmission rack plate, and a plurality of annular phase shifters. The driving module comprises a transmission rod. The transmission rack plate comprises a transmission nut, through which the transmission rack plate is pivotally connected to the transmission rod of the driving module. The plurality of annular phase shifters are disposed on the periphery of the transmission rack plate at intervals and are respectively engaged with the transmission rack plate. The rotation of the transmission rod drives the transmission nut to move back and forth on the transmission rod, and along with the back and forth movement of the transmission nut, the transmission rack plate drives the plurality of annular phase shifters to rotate.