20results about "Space fed arrays" patented technology

The invention discloses a 2-bit multi-polarization reconfigurable electric control metasurface antenna which comprises a linear polarization feed source horn and a reflection type metasurface. The reflective metasurface comprises a plurality of metasurface units arranged periodically, and each metasurface unit comprises a first metal layer, a first dielectric plate, a second metal layer, a prepreg layer, a third metal layer, a second dielectric plate and a fourth metal layer which are sequentially and coaxially stacked from top to bottom. And two pairs of p-i-n diodes are integrated on each metasurface unit and are used for regulating and controlling linearly polarized waves from the feed source. According to the metasurface antenna, the radiation capacity of dual linear polarization and dual circular polarization is achieved through the single linear polarization feed source and the single reflection type metasurface at the same time, the beam scanning capacity of + / -60 degrees is achieved, and the aperture efficiency is high. In addition, a direct-current control circuit for controlling a p-i-n diode switch is designed on the back surface of the reflective metasurface, so that the integration level of the metasurface system is greatly improved. The metasurface antenna has the advantages of being simple in structure, large in polarization number, low in structural complexity and high in integration degree.

The invention relates to a polarising cell (C) configured to receive radiation incident on a first side of the cell, and to produce, from the incident radiation, on a second side of the cell opposite the first side, re-emission radiation that exhibits circular polarisation. The cell comprises a switching element (15) configured to produce, in a controlled manner, a first active phase shift of the incident radiation. Such a cell can be used in a reconfigurable transmitting network, in particular as a component of a radio transmitting antenna or of a radio receiving antenna. A beam-forming and beam-scanning function can be achieved by controlling the active phase shift in each cell of the transmitting array.

The present invention discloses a cylindrical conformal all-metal dual-polarized phased array, comprising a cylindrical surface and n×n all-metal single-polarized phased array units with identical structures, where n is an integer greater than or equal to 2. The n×n all-metal single-polarized phased array units are all arranged on the cylindrical surface and evenly arranged in n rows and n columns to form an array. The n×n all-metal single-polarized phased array units can overlap through translation and rotation. Among each two adjacent rows of all-metal single-polarized phased array units, one row is used to radiate or receive horizontally polarized signals, and the other row is used to radiate or receive vertically polarized signals. Each all-metal single-polarized phased array unit includes a feeding part and a radiating part. The radiating part is realized by a magnetoelectric dipole and a metal wall, and the metal wall is symmetrically loaded on both sides of the magnetoelectric dipole. The advantage is that it can take into account both wide scanning angle and low gain fluctuation performance.

A unit cell for use in a reflect array is provided. The unit cell receives or transmits RF signals in first and second non-overlapping frequency bands. The unit cell includes a first element configured to address both the first and second frequency bands, a second element configured to address the second frequency band and compensate for phase errors induced by the first element, and a frequency selective surface ("FSS") layer disposed between the first element and the second element that is configured to reflect the first frequency band and allow passthrough of the second frequency band. The first element, second element, and FSS layer are arranged in a stack with the first element at the top and the second element at the bottom. A reflect array including multiple unit cells and methods of constructing and operating the reflect array and unit cell are also provided.

Active Polarizing Cell, Transmitting Array, and Radio Transmitting and Receiving Antennas. The invention relates to a polarizing cell (C) configured to receive incident radiation on one side of the cell and to produce, from the incident radiation, on a second side of the cell opposite the first side, re-emitted radiation having circular polarization. The cell includes a switching mechanism (15) configured to produce, in a controlled manner, a first active phase shift of the incident radiation. Such a cell can be used in a reconfigurable transmitting array, in particular for use in the construction of a radio transmitting or receiving antenna. A beamforming and scanning function can be achieved by controlling the active phase shift in each cell of the transmitting array. Figure for the abstract: Fig. 2

A reconfigurable antenna array includes a plurality of emitting antennas, a plurality of drive inputs corresponding to respective emitting antennas of the plurality of emitting antennas and configured to receive drive signals for the respective emitting antennas, a plurality of controllable components that are controllable to perform space-wave phase shifting on radiation emitted by the plurality of emitting antennas, and a plurality of control inputs corresponding to the plurality of controllable components, the plurality of control inputs arranged to receive control signals for the plurality of controllable components. Control circuitry has outputs coupled to the plurality of control inputs is configured to deliver the control signals to the plurality of controllable components to cause the plurality of controllable components to space-wave phase shift the radiation emitted by the plurality of emitting antennas, causing the reconfigurable antenna array to emit a beam having an intensity peak in a target direction.

A system for angular deception, comprises: a structure having a plurality of resonators characterized by a controllable phase shift between an electromagnetic wave incident on the structure and an electromagnetic wave scattered off the structure, and a controller configured for modulating the phase shift at a modulation frequency of at least 0.01 of a bandwidth of the incident electromagnetic wave.

Battery (10, 110, 210, 310), in particular for a motor vehicle, comprising: a housing (12) constituting an outer casing of the battery; a plurality of battery cells (14) and a plurality of radio frequency (RF) transmitters (16) arranged inside the housing, each of the battery cells having an associated RF transmitter of its own; a battery management controller (19) and an associated RF receiver (18) arranged inside the housing; and a passive signal range extension system (20). The extension system comprises a substrate (22) housing at least one transmitting antenna (26a) arranged opposite the plurality of RF transmitters, and at least one receiving antenna (26b) arranged opposite the RF receiver. A transmission line (28) connects said at least two patch antennas. Abstract Figure: Figure 1

To provide a reflect array capable of supporting a wider bandwidth, and a method for constructing the reflect array.SOLUTION: A reflect array includes multiple unit cells 100. A unit cell 100 includes: a first element 102 configured to address both a first frequency band and a second frequency band; a second element 104 configured to address the second frequency band and compensate for phase errors induced by the first element 102; and a frequency selective surface (FSS) layer 106 disposed between the first element 102 and the second element 104 and configured to reflect the first frequency band and allow passthrough of the second frequency band. The first element 102, the second element 104 and an FSS layer 106 are arranged in a stack with the first element 102 at the top and the second element 104 at the bottom.SELECTED DRAWING: Figure 1

The invention relates to a battery (10, 110, 210, 310), in particular for a motor vehicle, comprising: a housing (12) forming an outer shell of the battery; a plurality of battery cells (14) and a plurality of radio frequency (RF) transmitters (16) disposed inside the housing, each of the battery cells having an associated dedicated RF transmitter; a battery management controller (19) and an associated RF receiver (18) arranged inside the housing; and a passive signal range extension system (20). The extension system comprises: a substrate (22) housing at least one transmit antenna (26a) arranged directly facing the plurality of RF transmitters; and at least one receive antenna (26b) arranged directly facing the RF receiver. A transmission line (28) connects the at least two patch antennas.

A system for angular deception, comprises: a structure having a plurality of resonators characterized by a controllable phase shift between an electromagnetic wave incident on the structure and an electromagnetic wave scattered off the structure, and a controller configured for modulating the phase shift at a modulation frequency of at least 0.01 of a bandwidth of the incident electromagnetic wave.

Reconfigurable Antenna This description relates to an antenna (100) comprising: – an amplifying array (101) comprising a plurality of first elementary cells (103); and – a transmitting array (105) comprising a plurality of second elementary cells (107), in which the amplifying array (101) is configured to radiate, or to be irradiated, by the transmitting array (105). Figure for the abbreviation: Fig. 1

An electromagnetic reflection apparatus and a base station are provided. The electromagnetic reflection apparatus includes a radiation portion and a phase adjustment portion that are disposed in a stacked manner. The radiation portion includes a radiation patch, and the radiation patch is configured to receive and transmit an electromagnetic signal. The phase adjustment portion includes a coupling structure and a phase adjustment structure. The coupling structure is located between the radiation patch and the phase adjustment structure. The coupling structure is configured to transmit the electromagnetic signal between the radiation patch and the phase adjustment structure. The phase adjustment structure includes a phase adjustment component. The phase adjustment component includes a feed strip line and a plurality of phase adjustment strip lines of different lengths. The feed strip line is configured to transmit the electromagnetic signal to the radiation patch through the coupling structure. The feed strip line can be electrically connected to any phase adjustment strip line, to change a reflection phase of the electromagnetic signal. When the foregoing structure is used, the reflection phase of the electromagnetic wave may be adjusted in a wide operating bandwidth, and adjustment precision is high.

The invention relates to a radar sensor (10) comprising at least one antenna element (20-22, 25-27) and a radar converging lens (30); a focal point (40) of the radar converging lens (30) for radar radiation is at a predetermined focal length (FA) from a lens side (31) of the radar converging lens (30) facing the focal point (40). According to the invention, at least one antenna element (20-22, 25-27) is spatially arranged between the focal point (40) and a lens side (31) of the radar converging lens (30) facing the focal point (40).

The invention belongs to the technical field of microwave passive devices, and particularly relates to a feed network for a monopulse array antenna and the monopulse array antenna, and the feed network comprises a sequential rotation comparator network and an 8 * 8 subarray feed network. The sequence rotation comparator network is used for receiving input electromagnetic signals, outputting four paths of electromagnetic signals with the same amplitude and different phase delays and feeding the electromagnetic signals into the 8 * 8 subarray feed network; four couplers and a phase shifter are introduced into the sequential rotation comparator network and are used for jointly realizing a phase relation of sum and difference beams and sequential rotation feed; the 8 * 8 sub-array feed network is used for concentrating electromagnetic energy to the array center of the 8 * 8 sub-array feed network through an unequal power divider so as to realize low side lobe performance; a high-performance diaphragm polarizer does not need to be introduced, the axial ratio bandwidth can be effectively widened, the circular polarization purity is improved, the antenna side lobe and the antenna complexity are reduced, the performance of a circular polarization antenna array is achieved, and the system loss can be greatly reduced.

A unit cell for use in a reflect array is provided. The unit cell receives or transmits RF signals in first and second non-overlapping frequency bands. The unit cell includes a first element configured to address both the first and second frequency bands, a second element configured to address the second frequency band and compensate for phase errors induced by the first element, and a frequency selective surface (“FSS”) layer disposed between the first element and the second element that is configured to reflect the first frequency band and allow passthrough of the second frequency band. The first element, second element, and FSS layer are arranged in a stack with the first element at the top and the second element at the bottom. A reflect array including multiple unit cells and methods of constructing and operating the reflect array and unit cell are also provided.

Active Polarizing Cell, Transmitting Array, and Radio Transmitting and Receiving Antennas. The invention relates to a polarizing cell (C) configured to receive incident radiation on one side of the cell and to produce, from the incident radiation, on a second side of the cell opposite the first side, re-emitted radiation having circular polarization. The cell includes a switching mechanism (15) configured to produce, in a controlled manner, a first active phase shift of the incident radiation. Such a cell can be used in a reconfigurable transmitting array, in particular for use in the construction of a radio transmitting or receiving antenna. A beamforming and scanning function can be achieved by controlling the active phase shift in each cell of the transmitting array. Figure for the abstract: Fig. 2

Antenna arrays with three-dimensional (3D) conformal radiating elements are provided, as well as methods of manufacturing and methods of using the same. An array can include a ground plane and a plurality of unit cells disposed thereon. Each unit cell can include a 3D conformal radiating element. The 3D conformal radiating elements can be, for example, patches (e.g., circular 3D patches), dipoles, or loops, and each radiating element is conformal on a hemispherical shape.

The present application relates to the technical field of wireless communications. Disclosed are an antenna, an electronic device, and a communication base station. The antenna has a simple structure and relatively low costs. The antenna comprises a first function device and a second function device, which are sequentially spaced apart from each other in a first direction. The first function device comprises M feed sources configured to transmit first electromagnetic signals, wherein M is an integer greater than or equal to 2. The second function device comprises N transmission units configured to change the physical states of an electromagnetic signal passing through the transmission units, wherein the physical states of the electromagnetic signal comprise one or more of the following: an amplitude, a phase, and a polarization direction; N is an integer greater than or equal to 2; and the distance between the first function device and the second function device is smaller than or equal to a predetermined multiple of the distance between two transmission units in the second function device that are the farthest from each other.

Antenna cell with transmitter array The present description relates to a transmitter array cell (105) adapted to implement simultaneous two-way communication, the cell comprising: – a first antenna element (105a) located on a first face of the cell; – a second antenna element (105b) located on a second face of the cell, opposite the first face; – a transmission channel comprising, between the first and second antenna elements, a first phase shift and amplification circuit (203a); and – a reception channel comprising, between the first and second antenna elements, a second phase shift and amplification circuit (203b). Figure for abstract: Fig. 3A