Abstract: A base station antenna includes a smart bias tee (SBT), an antenna array, a phase shifter, and a filter circuit. The antenna array includes a plurality of antenna elements. The phase shifter includes a plurality of output terminals. Each of the plurality of output terminals is coupled to an antenna element. The filter circuit includes a first filter. An input terminal of the first filter is coupled to either one of output terminals of two ends of the phase shifter. The output terminals are coupled to the SBT. The output terminals of the two ends of the phase shifter have weaker power compared to other output terminals.

Abstract: Techniques and mechanisms to provide satellite communication functionality with an antenna assembly. In an embodiment, a communication device includes an antenna panel (comprising one or more holographic antenna elements), a housing and hardware interfaces which facilitate operation of the communication device has a module of the antenna display. A cross-sectional profile of the housing may conform to a polygon other than any rectangle. A configuration of the housing and hardware interfaces may facilitate the formation of an antenna assembly arrangement other than that of any rectilinear array. In another embodiment, communication devices of the antenna assembly each conform to a triangle or a hexagon.

Abstract: A filter circuit that secures the steepness from a pass range to an attenuation range while maintaining a wide-band transmission characteristic and a filter device including this filter circuit are formed. A filter circuit includes a first filter and a second filter. The first filter is a filter including an LC circuit in which a first frequency band is a pass band and a frequency band not higher than the first frequency band is an attenuation band. The second filter is a filter that attenuates a second frequency band within the first frequency band by using an attenuation pole produced by a resonance or an antiresonance of an acoustic wave resonator. Further, the first filter is placed closer to an antenna terminal than the second filter.

Abstract: A wave phased array is manufactured using additive manufacturing technology (AMT). The wave phased array includes a radiator, a radiator dilation layer supporting the radiator, a beamformer supporting the radiator dilation layer, a beamformer dilation layer supporting the beamformer, and a substrate support layer supporting the beamformer dilation layer. At least one of the radiator, the radiator dilation layer, the beamformer, the beamformer dilation layer and the substrate support layer is fabricated at least in part by an AMT process.

Abstract: A highly integrated pattern-variable multi-antenna array, including a ground conductor structure, a first antenna array, a second antenna array, and an array conjoined grounding structure, is provided. A first inverted L-shaped resonant structure has a first feeding point, and the others respectively have a first switch and are electrically connected or coupled to the ground conductor structure. A second inverted L-shaped resonant structure has a second feeding point, and the others respectively have a second switch and are electrically connected or coupled to the ground conductor structure. The first and second antenna arrays respectively generate first and second resonance modes. The second and first resonance modes cover at least one same first communication frequency band.

Abstract: A method for adjusting direction of antenna for optimal radio reception, adapted to a communication device with a directional antenna. The method includes receiving a wireless signal output by a wireless signal source in a first direction at a predetermined location, and obtaining a first received power value corresponding to the first direction. A wireless signal output by the wireless signal source in a second direction is also received through the directional antenna and a second received power value corresponding to the second direction is also obtained. An optimal receiving angle according to the first received power value, the second received power value, a maximum gain value of the directional antenna, a first angle, and a second angle, is calculated and the direction of the directional antenna can be adjusted according to the optimal receiving angle.

Abstract: There is provided a method of mounting equipment to an aircraft having an empennage. The method comprises mounting equipment to a mounting structure for mounting to the aircraft; removing an access panel from the outer skin of the empennage of the aircraft to reveal an access panel opening into the empennage; and attaching the mounting structure to or within the access panel opening such that at least a portion of the equipment extends beyond the outer skin of the empennage. The shape of the mounting structure at least partly conforms to the shape of the access panel opening. The method also comprises covering the mounting structure and the equipment mounted thereon with a cover, and attaching the cover to the mounting structure or the empennage. An assembly, structure, tailplane and aircraft are also provided.

Abstract: Methods and apparatus to provide a rectangular N×M antenna element subarray block having opposed first and second major surfaces and first and second ends at opposite ends of the block, wherein the antenna elements are located at the first end of the block. A coldplate between the first inlet connector and the first outlet connector enables flow of the liquid coolant from the first inlet connector to the first outlet connector. The first inlet connector is configured to enable flow of the liquid coolant into the system in a direction that is normal to the first major surface of the block.

Abstract: An antenna includes an antenna element array configured to form a dual beam and including at least three antenna elements and a feed network including a first signal input terminal configured to input a first beam signal for forming a first beam, a second signal input terminal configured to input a second beam signal for forming a second beam, a third signal input terminal configured to input a third beam signal for forming a third beam, and a diplexer including a first input terminal, a second input terminal, and an output terminal. The diplexer is electrically connected to at least one antenna element in the antenna element array through the output terminal and configured to process a signal associated with a dual-beam signal and a signal associated with the third beam signal working in a different frequency band from the dual-beam signal, to obtain a combined signal.

Abstract: An electronic device is provided. The electronic devices includes a housing at least partially including a conductive portion, an antenna structure including a printed circuit board including a plurality of insulating layers, at least one first conductive patch including a first feeding point, and a second feeding point, and at least one second conductive patch including a third feeding point, and a fourth feeding point, and an antenna module including a wireless communication circuit configured to transmit or receive a first signal through the at least one first conductive patch and to transmit or receive a second signal of a second frequency band through the at least one second conductive patch.

Abstract: A radio frequency (RF) aperture includes an interface board. An array of electrically conductive tapered projections have bases disposed on a front side of the interface printed circuit board and extend away from the front side of the interface printed circuit board. RF circuitry is disposed at the back side of the interface board and is electrically connected with the electrically conductive tapered projections.

Abstract: There is provided an antenna arrangement. The antenna arrangement comprises a baseband chain. The antenna arrangement comprises an antenna array. The antenna array is coupled to the baseband chain and divided into a first sub-array and a second sub-array. The first sub-array comprises antenna elements of only a first polarization and the second sub-array comprises antenna elements of only a second polarization. The first sub-array and the second sub-array have their antenna elements at identical locations relative each other, except for the antenna elements of the first sub-array and the antenna elements of the second sub-array being translated, but not rotated, relative each other.

Abstract: A composite heat dissipation member and an electronic device comprising the composite heat dissipation member. The composite head dissipation member may include a first heat dissipation sheet disposed to be overlapped with an antenna module, and a second heat dissipation sheet disposed adjacent to the first heat dissipation sheet without an overlap with the first heat dissipation sheet, thermally connected to the first heat dissipation sheet, and having a higher thermal conductivity than the first heat dissipation sheet.

Abstract: A low energy transmitter is provided. The transmitter includes an antenna circuit wherein the antenna circuit has an antenna positive node interface (Vop) and an antenna negative node interface (Von); a reference voltage source that supplies a reference voltage to the antenna circuit; and a common mode feedback (CMFB) circuit coupled to the antenna circuit that receives from the antenna circuit inputs from the Vop and the Von and supplies at least one signal to the antenna circuit.

Abstract: An electronic device according to a disclosed embodiment includes a first antenna, a second antenna, a first communication circuit configured to communicate in a first frequency band with the first antenna at a first data rate, a second communication circuit configured to communicate in a second frequency band with the second antenna at a second data rate, a first coupler electrically connected between the first antenna and the first communication circuit, and at least one communication circuit configured to control to identify, during at least part of a period of simultaneously transmitting a first transmit signal with the first antenna and a second transmit signal with the second antenna, an amplitude of a first receive signal including at least part of the second transmit signal detected by the first coupler, disable an operation of attenuating the at least part of the second transmit signal included in the first receive signal based on the amplitude of the first receive signal falling in a first designate

Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.

Abstract: An antenna structure capable of transmitting radio waves in multiple polarizations is positioned on a circuit board. The circuit board includes upper and lower surfaces and peripheral side wall. The antenna structure includes a first antenna array, a second antenna array, and a control circuit. Each antenna unit of the first antenna array is positioned on one of the upper surface or the lower surface, a portion of each antenna unit of the second array is positioned on the peripheral side wall. The other portion of each antenna unit bended and positioned on at least one of the upper surface or the lower surface. In activating the first antenna array and the second antenna array the control circuit can generate radio transmissions in multiple polarizations. A wireless communication device is also provided.

Abstract: An antenna module includes a grounding plane, a first high-frequency radiator, a second high-frequency radiator, and a low-frequency grounding component. The first high-frequency radiator includes a first feeding portion, a first grounding portion, and a first radiating portion. The first grounding portion is coupled to the grounding plane. The second high-frequency radiator includes a second feeding portion, a second grounding portion, and a second radiating portion. The second grounding portion is coupled to the grounding plane. The low-frequency grounding component located between the first and second high-frequency radiators. The low-frequency grounding component includes a third grounding portion which is coupled to the grounding plane, a first coupling portion, and a second coupling portion. The low-frequency grounding component extends from the third grounding portion and extends in a first direction and a second direction of a first axis respectively to form the first and second coupling portions.

Abstract: The present disclosure provides an antenna system and a terminal. The antenna system includes a plurality of antennas; an isolation degree control module connected to the plurality of antennas, respectively; and a processor connected to the isolation degree control module. The processor is configured to determine, among the plurality of antennas, two target antennas needing optimization control of isolation degree, and control, according to the two target antennas and operating frequency bands respectively corresponding to the two target antennas, the isolation degree control module to perform the optimization control of isolation degree between the two target antennas.

Abstract: Methods and devices for performing dynamic compensation of a phased array RFID reader are disclosed herein. An example method includes configuring an RFID reader having an antenna array to compensate for determined antenna element phase-shift errors. The method includes exciting a reference antenna element of the antenna array, emitting an emitted signal, receiving the emitted signal via a receiver antenna element of the antenna array, and generating a received signal. The method further includes determining, by a processor, a phase shift of the received signal relative to the emitted signal, and determining a phase-shift error. The method then includes configuring the RFID reader to compensate for the determined phase-shift error associated with the receiver antenna element in response to receiving an RFID tag signal.

Abstract: An MRI scanner and a method for operation of the MRI scanner are provided. The MRI scanner has a first receiving antenna for receiving a magnetic resonance signal from a patient in a patient tunnel, a second receiving antenna for receiving a signal having the Larmor frequency of the magnetic resonance signal, and a receiver. The second receiving antenna is located outside of the patient tunnel or near an opening thereof. The receiver has a signal connection to the first receiving antenna and the second receiving antenna and is configured to suppress an interference signal by the second receiving antenna in the magnetic resonance signal received by the first receiving antenna.

Abstract: A phased array antenna includes a panel, a plurality of feed boards on the panel, each of the feed boards including at least one radiating element, a base-level adjustable phase shifter including a plurality of outputs, a first feed board adjustable phase shifter mounted on a first of the feed boards and a first cable that forms a transmission path between a first of the outputs of the base-level adjustable phase shifter and the first feed board.

Abstract: The invention provides a phased array antenna, which includes a core board, as well as an antenna module and a radio frequency module respectively arranged at two sides of the core board, where the radio frequency module includes a device attached to a surface far away from the core board and a circuit layer electrically connected to the device, and the device and the circuit layer at least form a phase control unit to control a phase of each antenna unit in the antenna module and a beam synthesis unit to control a beam shape of the phased array antenna.

Abstract: A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. Each individual nanostructure of the nanostructures imparts a light phase shift that varies depending on a location of the individual nanostructure on the substrate. The light phase shifts of the nanostructures define the phase profile of the meta-lens. The varying light phase shifts can be realized by, e.g., changing orientations of nanofins or changing diameters of nanopillars.

Abstract: Various embodiments of the present invention relate to a method for inspecting whether an electronic device and a communication device included in the electronic device operate normally.

Abstract: A wireless power transmission apparatus can include a coil unit including a first layer including a first wireless power transmission coil having an asymmetric shape, and a second layer including a second wireless power transmission coil having an asymmetric shape, the first and second wireless power transmission coils being connected in parallel and partially overlapping with each other; and first and second terminals configured to simultaneously apply current to the first and second wireless power transmission coils connected in parallel, in which the first wireless power transmission coil and the second wireless power transmission coil have line symmetry with respect to an imaginary line extending between the first and second terminals and between the first and second layers.

Abstract: A receiver and a transmitter are disclosed that are applicable to space, air or ground RF communication systems and are applicable to systems where one or more signals of multiple types and characteristics are present in any given beam such as a communication spot beam on a high-throughput satellite. The transmitter can include an optical frequency comb configured to generate a multitude of equidistantly spaced optical wavelengths; an electro-optic modulator that receives the multitude of equidistantly spaced optical wavelengths and a data signal and produce a modulated optical beam; an optical circulator that receives the modulated optical beam; an optical switch that switches the modulated optical beam to an output port of the optical switch terminated in one or more Fiber-Bragg gratings; a wavelength division multiplexer that receives individual wavelengths of the modulated optical beam that are time-delayed from the optical circulator; and a plurality of antenna elements.

Abstract: There is provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports, wherein the one or two beam ports are defined by combining at least two non-overlapping subarrays. Each subarray has two subarray ports, the two subarray ports having identical power patterns and mutually orthogonal polarization. The at least two non-overlapping subarrays are combined via expansion weights. The expansion weights map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.

Abstract: A radio frequency filter module includes: an antenna package including patch antennas and having first and second frequency passbands different from each other; an integrated circuit (IC) package including an IC; and a connecting member disposed between the antenna package and the IC package, and having a laminated structure configured to electrically connect the patch antennas and the IC to each other. The connecting member includes: a first radio frequency filter pattern having the first and second frequency passbands, and including a first port electrically connected to the IC and a second port electrically connected to at least one of the patch antennas; and a second radio frequency filter pattern having the first and second frequency passbands, and including a third port electrically connected to the IC and a fourth port electrically connected to at least another one of the patch antennas.

Abstract: An antenna structure of few components and reduced size which functions by switching between components to achieve radiation in three different frequency bands includes two radiating portions, a feeding portion, a matching circuit, and a first switching circuit. With the first switching circuit closed, current flows along a first radiating portion to activate a first frequency band. A second radiating portion obtains the current from the first switching circuit by coupling with the first radiating portion, to activate a second frequency band. Current in the first radiating portion can activate a third frequency band. With the first switching circuit open, current in the first radiating portion activates radiation in the first frequency band. The second radiating portion can radiate in second frequency band by coupling current from the first radiating portion. Frequency multiplication of the first frequency band can activate the third frequency band.

Abstract: An electronic device is provided. The electronic device includes an antenna module including an antenna array. The antenna module includes a printed circuit board, conductive lines formed on the printed circuit board, each of the conductive lines having different lengths, a communication circuit including a first switch connected to ends of the conductive lines, and a front-end including a second switch connected to opposite ends of the conductive lines and phase shifters connected to the second switch. Based on a direction of a beam to be formed by the antenna array, a processor connected to the antenna module is configured to control the first switch and the second switch to select at least one of the conductive lines and to control a phase value of at least one of the phase shifters connected to the selected conductive line, based on a length of the selected conductive line.

Abstract: Batteries as an antenna for a device are disclosed. In an embodiment, the device comprises: at least two batteries, each battery comprising at least two conductive portions; a radio frequency, RF, isolation component configured between the at least two batteries; a transformer configured to connect a radio frequency signal to the at least two conductive portions of the at least two batteries, wherein the at least two conductive portions are configured as an antenna of the device.

Abstract: An antenna device includes a first ground plane, a second ground plane, a first antenna unit, a second antenna unit, and a metal plate. The second ground plane is connected to the first ground plane. The first antenna unit is disposed on the second ground plane. The second antenna unit is disposed on the second ground plane. The metal plate and is connected to the second ground plane and the location of the metal plate is arranged corresponding to the first antenna unit and the second antenna unit. Each of the first antenna unit and the second antenna unit is configured to cooperate with the first ground plane and the metal plate to generate a radiation pattern perpendicular to the first ground plane.

Abstract: A metal frame antenna (MFA) system comprises multiple arms developed to cover multiple ranges of frequencies normally required in a wireless device such as a phone. The MFA system comprises a ground plane layer, a first electrical arm including a strip element at an edge of a phone spaced apart from an edge of the ground plane layer, a second electrical arm comprising a strip element and/or an antenna booster, a branching system connecting the first and second arms to a feeding system that is connected to the RF system of the phone.

Abstract: A phased array antenna in which a plurality of blocks each having a plurality of transmitter modules are arrayed, includes: a front plate that includes a plurality of flow paths of a refrigerant therein; and an element feeding layer that includes a plurality of antenna elements respectively connected to the transmitter modules and that is placed in close contact with one surface of the front plate. Each of the blocks includes a heat spreader that is placed in close contact with the other surface of the front plate. The transmitter modules are mounted on the heat spreader. Heat generated in the transmitter modules is transferred to the refrigerant via the heat spreader and the front plate.

Abstract: A multi-feed antenna comprises a first antenna component, a second antenna component, a metal board and an isolation assembly. The first antenna component comprises a first signal feed-in terminal and a first free end, with the first signal feed-in terminal configured for receiving a first feed-in signal. The second antenna component comprises a second signal feed-in terminal and a second free end, with the second signal feed-in terminal configured for receiving a second feed-in signal. The metal board comprises a first section, a second section and a third section between the first and second sections. The first section and the first free end define a first gap therebetween, and the second section and the second free end define a second gap therebetween. The isolation assembly is electrically connected with the third section, comprises a ground terminal, and is configured for isolating the first and second feed-in signals.

Abstract: The present invention relates to a tile structure of a shape-adaptive phased array antenna, and more specifically to a tile structure of a shape-adaptive phased array antenna configured to improve drag and low-observable properties of an airplane, and minimize a structural interference between adjacent tiles of the phased array antenna.

Abstract: Antenna structures and methods of operating the same are described. One apparatus includes a processing device that executes an active interference cancellation (AIC) algorithm and radio frequency front-end (RFFE) circuitry coupled to the processing device. The RFFE circuitry includes two RF couplers, a fixed-delay filter, and an interference compensation circuit part of an electrical path between the two RF couplers. The AIC algorithm is operable to control the interference compensation circuit to adjust a phase, an amplitude or both of a copy of a first RF signal transmitted on a first antenna to remove corresponding interference in a second RF signal received at a second antenna that is caused by the first RF signal. The processing device triggers a re-calibration in the AIC algorithm when the digital values, received from a power detector circuit, indicate a change in impedance that exceeds a threshold.

Abstract: A multi-frequency antenna structure includes a feed portion, a first ground portion, a first radiating portion, a second radiating portion, and a third radiating portion. The feed portion supplies current to the antenna structure. The first ground portion is spaced apart from the feed portion and grounds the antenna structure. The first radiating portion is electrically connected to the feed portion. The second radiating portion is spaced apart from the first radiating portion and is electrically connected to the first ground portion. The third radiating portion is spaced apart from the second radiating portion and is electrically connected to the feed portion and the first radiating portion.

Abstract: An antenna module, system, and method for receiving an incoming signal in a confined space are disclosed. The antenna module comprises a plurality of antenna elements and a plurality of combiners, each of the plurality of combiners coupled to a subset of the plurality of antenna elements. The system includes the antenna module, a processor, and a controller. The processor receives and analyzes outputs from the antenna module and generates an output signal corresponding to the incoming signal. The controller controls states of the antenna module, which is capable of being in any of a plurality of states to receive the incoming signal.

Abstract: Aspects of the subject disclosure may include, for example, a transceiver that converts first modulated channel signals in a first spectral segment to the first modulated channel signals in a second spectral segment based on signal processing of the first modulated channel signals and without modifying the signaling protocol of the first modulated channel signals. The transceiver transmits, via a fiber optic cable, a transmission signal including a first reference signal with the first modulated channel signals in the second spectral segment to a network element of a plurality of network elements of the distributed antenna system for wireless distribution of the first modulated channel signals to mobile communication devices in the first spectral segment. The first reference signal enables the distributed antenna system to reduce a phase error during processing of the first modulated channel signals from the second spectral segment to the first spectral segment.

Abstract: A multi-band helix antenna including one or more first arms extending helically about an axis at a first distance from the axis; and one or more second arms extending helically about the axis at a second distance from the axis that is greater than the first distance, wherein each of the one or more second arms comprises at least one trap circuit configured to have a first impedance at a resonant frequency of the one or more first arms and a second impedance at a resonant frequency of the one or more second arms, and the first impedance is greater than the second impedance.

Abstract: An active electronically scanned array (AESA) antenna system can include a plurality of printed circuit boards (PCBs) having a common shape. Each PCB of the plurality of PCBs can include a respective sub-array of antenna elements surrounded by a passive area, and can include electronic circuitry for electrically steering the sub-array of antenna elements. The AESA antenna system can include a mechanical seal for mechanically connecting the PCBs hosting the sub-arrays to form an antenna array of the sub-arrays. The passive areas can form separation areas between adjacent ones of the sub-arrays when the PCBs are mechanically connected to each other. The sub-arrays are arranged such that the separation areas are contiguous along at most one straight direction across the antenna array.

Abstract: An antenna system reusing metallic components in a device includes a first antenna element which is also configured to transfer heat into surrounding air; a ground plane which is part of reused metallic components in the device for heat dissipation; and a first physical connection between the first antenna element and the ground plane which supports thermal conductivity based on an associated size and material of the first physical connection.

Abstract: A receiver for receiving a radio frequency (RF) signal that comprises a carrier signal modulated with a baseband symbol. The receiver includes a plurality of spatially-distributed antennas to receive the RF signal; a local reference signal generator configured to generate a local reference signal; a plurality of power couplers, each power coupler having a first input connected to a respective one of the antennas to receive a respective version of the RF signal, a second input connected to the local reference signal generator to receive the local reference signal, and an output to output a corresponding coupled signal; and a differentiator circuit connected to the power coupler outputs for determining a power differential between at least one pair of the coupled signals to recover the baseband symbol from the RF signal.

Abstract: The invention is directed to methods and systems for adjusting the vertical beam width of an imbalanced antenna. In one embodiment, first and second antenna arrays are imbalanced because one of the arrays has at least one more radiating element than the other. The additional gain created by additional radiating element(s) distorts the beam and alters the coverage area of the corresponding array, in embodiments. The tilt of the array having at least one more additional radiating element(s) is modified using phase shifting technology and based on the tilt of the array having fewer elements. By modifying tilt of the array having at least one more additional radiating element(s), the upper 3 dB points of the first and second array may be aligned to correct for the distorted beam and altered coverage area between the first and second arrays.

Abstract: An antenna assembly includes a substrate, a first antenna having a first, second, third, fourth sections, which have different configuration respectively, and a first transmission cable, a second antenna having a fifth, sixth, seventh, eighth sections, which have different configuration respectively, and a second transmission cable. The first and fifth sections extend vertically from a surface of the substrate respectively. The second, third and fourth sections extend in parallel with the first section and extend from its next section. The sixth, seventh, eighth sections extend in parallel with the fifth section and extend from its next section. The first and second transmission cables physically and electrically are connected to the first and second antenna respectively. The second antenna is spaced away from the first antenna a selected distance. The first antenna is arranged having each of its sections extending perpendicular to each of its sections of the second antenna.

Abstract: A system is described for measuring distance between an RFID reader and an RFID backscatter tag, including an adaptive linear combiner, which is a tapped delay line with controllable weights on each tap, and outputs that are summed and subtracted from a reference to produce an error signal. After a sufficient number of cycles, the weight distribution indicates the delay of the received signal with respect to the reference, and by extension determines the distance between the tag and receiver.

Abstract: Aspects of the subject disclosure may include, for example, receiving a first wireless signal at a first carrier frequency, the first wireless signal including a first modulated signal generated by a second antenna system by frequency-shifting the first modulated signal from a first native frequency band to the first carrier frequency, receiving a second wireless signal at a second carrier frequency, the second wireless signal including a second modulated signal generated by a third antenna system by frequency-shifting the second modulated signal from a second native frequency band to the second carrier frequency, detecting a fault in the second antenna system, and responsive to the detecting, adjusting a power level of a first wireless transmission to generate an adjusted first wireless transmission directed to the third antenna system. Other embodiments are disclosed.

Abstract: A node in a wireless communication network, where the node comprises at least one antenna arrangement. Each antenna arrangement in turn comprises at least four antenna devices with corresponding pairs of antenna ports which in turn comprise corresponding first antenna ports and second antenna ports. Each antenna device comprises at least one corresponding dual polarized antenna element arranged for transmitting and/or receiving signals at a first polarization via the corresponding first antenna port and for transmitting and/or receiving signals at a second polarization via the corresponding second antenna port, where the polarizations are mutually orthogonal. Each antenna arrangement further comprises at least a first transformation matrix arrangement which in turn comprises at least four corresponding virtual antenna ports. The antenna ports are at least indirectly connected to each transformation matrix arrangement.