Abstract: An RFID reader/writer antenna device is provided that includes a first radiating element, a second radiating element, a third radiating element, baluns, a phase shifter, and a distributor. The radiating elements each comprise conductor patterns with extending directions that are parallel to each other, and used for reading or writing of RFID tags. The distributor connects the first radiating element, the second radiating element, and the third radiating element to a common input/output. The phase shifter causes a feeding phase of the second radiating element and feeding phases of the first radiating element and the third radiating element to have a phase difference of 90°. The baluns perform conversion between a balanced signal and an unbalanced signal.

Abstract: Provided is a method for marking a ground surface according to a predefined marking pattern using a system including a robot unit and a local base station including acts of providing two flag points, receiving global positioning data of the robot unit using a robot GNSS receiver, receiving global positioning data of the local base station using a base GNSS receiver, and establishing a local base station position using the received global positioning data of the local base station. A method wherein the predefined marking pattern is arranged relative to the two flag point positions and wherein the local base station position is a system reference point of the system. Also provided is a system for marking a ground surface according to a predefined marking pattern and the use thereof or parts thereof.

Abstract: In one embodiment, a parabolic antenna assembly includes a main reflector, a feed system in RF communication with the main reflector including a horn and a dielectric portion, and a sub-reflector in RF communication with the feed assembly, wherein the sub-reflector includes a body portion and a stem portion mechanically coupled to one another, wherein a reflecting surface of the sub-reflector is defined by at least a portion of the body portion and at least a portion of the stem portion, wherein the dielectric portion spaces the sub-reflector from the horn, and wherein the sub-reflector includes an axially-symmetric choke for providing virtual continuity at the reflecting surface.

Abstract: A system and method are provided for discovering k-nearest-neighbors to a given point within a certain distance d. The method includes constructing an index of geometries using geohashes of geometries as an indexing key to obtain an indexed set of geometries, and calculating a geohash representation of the given point with a resolution equal to a magnitude value of d. The method includes searching for a closest-prefix geometry from the indexed set using the geohash representation of the given point, and identifying geometries from the indexed set having a same prefix as the closest-prefix geometry. The method further includes calculating distances between the given point and the geometries identified from the indexed set having the same prefix as the closest-prefix geometry, and determining k geometries with respective shortest distances less than d from the geometries identified from the indexed set having the same prefix as the closest-prefix geometry.

Abstract: A method for vehicle-loading warehousing asset management based on an ultra-high frequency (UHF) radio frequency identification (RFID) path loss model, which includes the following steps. An electromagnetic wave is emitted by a tag reader. The electromagnetic wave is diffracted, reflected, and scattered when passing through a warehousing vehicle hood, and the electromagnetic wave is emitted and scattered through the ground. A UHF RFID tag attached to a front surface location region of assets receives electromagnetic waves of various paths emitted by the tag reader. The tag reader reads UHF RFID tag information. A transfer function of a tag receiving signal is constructed according to the tag information, and a path loss function during a UHF RFID tag sensing electromagnetic wave process is constructed according to the transfer function. The path loss is calculated according to the constructed path loss function. A location of the UHF RFID tag is obtained.

Abstract: A method for managing sharing of data on location between a user's source device and at least one third party's destination device. The method includes receiving first identifiers of the user's source device and of the third party's destination device and an authorization message indicating whether the destination device is authorized to obtain data on location of the source device; building or updating a table of correspondence associating the first identifier of the source device with the first identifier of the destination device; receiving data on location of the user's source device; receiving a request for transmitting data on location of the user's source device, corresponding to the first identifier of the user's source device, and a second identifier of the third party's destination device; and transmitting the data on location to the third party's destination device when the first and second identifiers of the third party's destination device correspond.

Abstract: Methods, systems, and devices for sharing a physical location with online users by requiring the online users to be in physical proximity of a specific physical location before the users can experience media content associated with the physical location. A user can mark a physical location when that user is at the location by associating a virtual anchor with that location. The virtual anchor creates a data structure that contains the location's geographic coordinates as well as other details regarding the anchor. The user can also associate media content with the virtual anchor. The virtual anchor can be shared with other users and these other users are notified of the presence of the virtual anchor when they are within a physical proximity from the physical location. Only when the other users are at the location can these users access the media content associated with the virtual anchor.

Abstract: In one embodiment, a method includes receiving, by a tracking system server from a first computing device in response to an event between the first computing device and a tracking device, a location associated with the tracking device and a timestamp. The method includes receiving, by the tracking system server, a set of location updates from a set of second computing devices, each location update including a location associated with the tracking device when the second computing device detects the tracking device and a timestamp. The method includes determining, by the tracking system server, a last known location of the tracking device based on the location associated with the tracking device received from the first computing device and one or more of the locations associated with the tracking device received with the location update.

Abstract: A wideband pulse detector and a method for operating the wideband pulse detector. The wideband pulse detector includes a signal collection unit for receiving electromagnetic pulses, a signal classification unit for classifying the electromagnetic pulses into N channels (where N is an integer of 2 or more) depending on frequency components corresponding to the electromagnetic pulses, a signal detection unit for detecting and holding the classified pulses, and a signal processing unit for converting the held pulses into digital signals, identifying types of the electromagnetic pulses corresponding to the converted digital signals using a classification algorithm, determining signal strengths of the electromagnetic pulses, and then controlling a reset circuit for successive signal detection.

Abstract: A tracking system can provide configuration instructions to an electronic device based on user presence. The tracking system can determine a user's location relative to a geographic boundary surrounding a geographic area associated with the user. Depending on the user's location, the tracking system may send instructions to configure an electronic device to send a notification or change the operating mode of the electronic device in response to the user's presence. The electronic device may be a scanning device that is configured to have a higher or lower scanning frequency, depending on the presence or absence of the user relative to the scanning device.

Abstract: A musical instrument having a hollow or semi-hollow body and a sound board, representing either the anatomical front surface or the anatomical rear surface of the hollow body, or with the front surface and the rear surface both functioning as a sound board for the musical instrument and having at least one tuned sound port located in either the front and/or rear sound board of the musical instrument through which sound can exist with the tuned sound port comprising a hollow member adapted to be inserted through a hole formed in one or both of the sound boards and having a central opening of predetermined geometry and a length extending a fixed distance from the sound board into the interior of the musical instrument of between 5% and 95% of the distance between the front rear sound surfaces of the musical instrument.

Abstract: The invention relates to a method for determining by a direction finder (DF) the direction to a Target, which comprises (a) providing an antenna at the DF, and an array of antennas at the Target; (b) providing a compass at each of the DF and the Target, for determining the azimuth of the DF Heading and of the Target Heading, respectively, with respect to the North; (c) providing at the DF a look-up table which describes n antenna patterns, one per Transmission Mode that may be used respectively at the Target; (d) sequentially performing x Transmission Modes from the Target, each time using another pair of antennas, and during each of the Transmission Modes intentionally, and in a controlled manner attenuating a reception signal at the DF until a loss of communication, and recording the respective attenuation levels; (e) based on the x recorded attenuations levels and the look up table, determining by the DF the direction from the Target to the DF; and (f) receiving at the DF the azimuth of the Target, and bas

Abstract: A tracking device has a first transceiver, a second transceiver, and control logic. The first transceiver can transmit a first tracking signal for locating the tracking device to mobile devices via a first network. The mobile devices provide the first tracking signal to a tracking server. The second transceiver can transmit a second tracking signal for locating the tracking device to the tracking server via a second network. The control logic can configure the tracking device in a first state in which the first transceiver transmits the first tracking signal, and the second transceiver is disabled and does not transmit the second tracking signal. In response to determining that the tracking device cannot connect to the tracking server via the first network, the control logic configures the tracking device in a second state in which the second transceiver is enabled and transmits the second tracking signal.

Abstract: An area and a size of a high frequency device are reduced. The high frequency device includes a first board (1) that has a first surface (1a) on which a circuit unit is formed and a second surface (1b) on which a ground conductor is formed, a second board (2) that has a third surface (2a) on which an antenna is formed and a fourth surface (2b) on which a second ground conductor is formed, and a conductor plate (3), in which the conductor plate (3) is sandwiched between the second surface (1b) and the fourth surface (2b).

Abstract: Methods, systems, and devices for sharing a physical location with online users by requiring the online users to be in physical proximity of a specific physical location before the users can experience media content associated with the physical location. A user can mark a physical location when that user is at the location by associating a virtual anchor with that location. The virtual anchor creates a data structure that contains the location's geographic coordinates as well as other details regarding the anchor. The user can also associate media content with the virtual anchor. The virtual anchor can be shared with other users and these other users are notified of the presence of the virtual anchor when they are within a physical proximity from the physical location. Only when the other users are at the location can these users access the media content associated with the virtual anchor.

Abstract: A system collects user data that describes at least one destination. The system generates, based on the collected user data, map data to render a plurality of maps. The maps are arranged in a stack so that a first interactive map is primarily displayed in the user interface and one or more dynamic maps are conceptually below that interactive map. A portion of each dynamic map is viewable and selectable within the user interface. As updated map data is received, information on the interactive map and dynamic maps is correspondingly updated. When a dynamic map is selected or the system detects that a dynamic map is to be displayed, the system provides for display a new interactive map that replaces the previous interactive map in the user interface.

Abstract: An electronic device may have hybrid antennas that include slot antenna resonating elements formed from slots in a ground plane and planar inverted-F antenna resonating elements. The planar inverted-F antenna resonating elements may each have a planar metal member that overlaps one of the slots. The slot of each slot antenna resonating element may divide the ground plane into first and second portions. A return path and feed may be coupled in parallel between the planar metal member and the first portion of the ground plane. Tunable components such as tunable inductors may be used to tune the hybrid antennas. A tunable inductor may bridge the slot in hybrid antenna, may be coupled between the planar metal member of the planar inverted-F antenna resonating element and the ground plane, or multiple tunable inductors may bridge the slot on opposing sides of the planar inverted-F antenna resonating element.

Abstract: In an inductive displacement measuring sensor for measuring the distance, the spatial orientation, the thickness, the material properties or the like of a target object, which sensor has a transmitter element which emits a pulsed signal and a receiver element for detecting a pulse response caused by the emitted pulsed signal in the target object, provision is made, in particular, for the detected pulse response to be immediately evaluated using an artificial neural network.

Abstract: A tracking server receives, from a first mobile device in response to a tracking signal, a first location associated with a tracking device and a first measurement of accuracy of the first location. The tracking server receives, from a second mobile device in response to a tracking signal, a second location associated with the tracking device and a second measurement of accuracy of the second location transmitted from a second mobile device. In response to determining that two locations associated with the tracking device have been received, the tracking server determines whether the first measurement of accuracy and the second measurement of accuracy are within a threshold measurement of accuracy. In response to determining that the first and second measurements of accuracy are within the threshold, the first location and the second location are transmitted to the second mobile device for presentation by the second mobile device.

Abstract: A radar system includes an array antenna including antenna elements that each output a reception signal in response to one or plural arriving waves, and a signal processing circuit in which a learned neural network has been established. The signal processing circuit receives the reception signals, inputs the reception signals or a secondary signal generated from the reception signals to the neural network, performs computation by using the reception signals or secondary signal and learned data of the neural network, and outputs a signal indicating the number of arriving waves from the neural network.

Abstract: The present invention relates to a method and a device for performing cell shaping. A base station can establish a cell shaping plan on the basis of current states. The current states may be the load of the base station and the traffic space distribution of the base station. The base station transmits a first message to a neighboring base station and receives a second message from the neighboring base station in response to the first message. The first message may include the cell shaping plan, and the second message may include whether or not the neighboring base station can perform cell shaping. The base station can determine whether or not to perform cell shaping on the basis of the second message.

Abstract: Movement information describing a movement of a tracking device is received at a mobile device. The mobile device determines a location associated with the tracking device, and provides the determined location, an identity of the tracking device, and the received movement information to a tracking server. The tracking server is configured to select one or both of the determined location or a previous location of the tracking device stored by the tracking server based on the movement information. The tracking server then provides, in response to a request for location information, the selected one or both of the determined location or a previous location to a requesting entity.

Abstract: A method of displaying information pertaining to an air vehicle is disclosed. Information is displayed indicative of first portions of a map where distance between a current altitude of the air vehicle and terrain in the map are within a first threshold. Information is displayed indicative of second portions of a map where a distance between the current altitude of the air vehicle and terrain in the map are within a second threshold. The first and second portions are updated based on a change in the current altitude of the air vehicle. In another example, a map including a projected flight path of an aircraft is displayed. Location-based information pertaining to radio frequency (RF) status between the aircraft and at least one ground radio is displayed on the map. The location-based information pertaining to RF status is updated based on a change in the current position of the air vehicle.

Abstract: A method of dividing a satellite signal into eight frequency points for processing includes the following steps: amplifying a satellite signal received by an antenna (S1); dividing the amplified satellite signal into radio frequency signals that includes eight frequency points in total, GPSL1, GPSL2, GPSL5, BDB1, BDB2, BDB3, GLNL1, and GLNL2, by a power divider circuit (S2); conducting a frequency mixing processing on five signals GPSL2, CPSL5, BDB2, BDB3, and GLNL2, and filtering the radio frequency signals that include eight frequency points in total, which include five frequency-mixed signals, GPSL2, GPSL5, BDB2, BDB3, and GLNL2, and three unmixed signals, GPS1, BDB1, and GN1 (S3); down-converting and A/D converting filtered eight-frequency-point radio frequency signals, outputting the signals to a baseband portion for a baseband signal processing (S4). This method reduces the power consumption, the size and the cost of the hardware.

Abstract: A tracking device can securely communicate with a secondary device by generating a hash value based on the identity of the tracking device. If the secondary device cannot resolve the hash value, the hash value can be provided to a tracking server, such as a cloud server, for resolving the hash value. Upon resolving the hash value, the tracking server can store a location of the tracking device in association with the identity of the tracking device. To preserve power, the secondary device can activate location-detection functionality (such as a GPS receive) only in response to the detection of movement of the tracking device, can obtain location information, and can de-activate the location-detection functionality upon providing the location information to the tracking server. The tracking server can associate one or both of a previous location and the current location information based on movement of the tracking device.

Abstract: Movement information describing a movement of a tracking device is received at a mobile device. The mobile device determines a location associated with the tracking device, and provides the determined location, an identity of the tracking device, and the received movement information to a tracking server. The tracking server is configured to select one or both of the determined location or a previous location of the tracking device stored by the tracking server based on the movement information. The tracking server then provides, in response to a request for location information, the selected one or both of the determined location or a previous location to a requesting entity.

Abstract: An apparatus (e.g., a wireless device) includes an antenna array and a separate antenna. The antenna array includes a plurality of antenna elements having a first antenna beam. The separate antenna includes an antenna element having a second antenna beam. The antenna element of the separate antenna is separate from the antenna elements of the antenna array. The antenna array and the separate antenna are active at different times in an operational mode. The antenna array may transmit and the separate antenna may be inactive in a transmit mode. The separate antenna may receive and the antenna array may be inactive in a receive mode. The antenna array may receive and the separate antenna may transmit in a test mode. Alternatively, the antenna array may transmit and the separate antenna may receive in the test mode.

Abstract: A high gain antenna for direction finding in the Ka-band. The antenna consists of a lens antenna fed by two micro strip patch antennas. The printed patch antennas are fed by a 180 degree hybrid coupler having four ports, with two ports connected to the feeds of the patch antennas and the other two ports connected to the receiver/exciter. The hybrid sums the signals from the patches and subtracts the signals from the patches to form sum and difference channels. By comparing the sum and difference channels, a user can determine whether the signal entered through the main beam. For example, if the sum signal is greater than the difference signal, the signal is in the main beam. If not, the signal came from another angle.

Abstract: An altimetry system for a satellite, including an altimeter transmitting and receiving signals on at least one first frequency band; a radiometer receiving signals on at least one second frequency band, the altimeter and the radiometer being connected to one and the same antenna; reception means common to the altimeter and to the radiometer, and capable of amplifying and filtering the signals received from the antenna on a frequency band including the first frequency band and the second frequency band; means for separating the signals on the first frequency band from the signals on the second frequency band; the signals on the first frequency band being exploited to estimate an altimetric distance of the satellite, and radiometric measurements being exploited in order to correct the estimate.

Abstract: Described are a method and a system for localization of a vehicle. The method includes the acquisition of SPR images of a subsurface region along a vehicle track. Acquired SPR images are compared to SPR images previously acquired for a subsurface region that at least partially overlaps the subsurface region along the vehicle track. In some embodiments, the comparison includes an image correlation procedure. Location data for the vehicle are determined based in part on location data for the SPR images previously acquired for the second subsurface region. Location data can be used to guide the vehicle along a desired path. The relatively static nature of features in the subsurface region provides the method with advantages over other sensor-based navigation systems that may be adversely affected by weather conditions, dynamic features and time-varying illumination. The method can be used in a variety of applications, including self-driving automobiles and autonomous platforms.

Abstract: A position determining voting system that uses Doppler information from an on-board weather radar to improve the system's accuracy and/or fault tolerance includes a comparison function and an error integration function. The comparison function is used to monitor the independent position sources for correct operation, comparing and identifying a position source that should not be used based on its relative error compared with the other position sources and their characteristics. The integration function provides corrections to relative position sources by integrating the data from multiple absolute position sources when they are mutually consistent.

Abstract: Some demonstrative embodiments include devices, systems and/or methods of wireless communication via multiple antenna assemblies. For example, a device may include a wireless communication unit to transmit and receive signals via one or more quasi-omnidirectional antenna assemblies, wherein the wireless communication unit is to transmit, via each quasi-omnidirectional antenna assembly, a plurality of first transmissions, to receive, in response to the first transmissions, a plurality of second transmissions from another device via one or more of the quasi-omnidirectional antenna assemblies, and, based on the second transmissions, to select at least one selected transmit antenna assembly for transmitting to the other device and a selected receive antenna assembly for receiving transmissions from the other device. Other embodiments are described and claimed.

Abstract: A method and a system for storing a constant path loss exponent corresponding to free space; transmitting a signal; receiving the signal via a rake receiver of a user device; identifying a maximum received signal strength based on a signal strength associated with the signal relative to fingers of the rake receiver; storing a current maximum received signal strength value; determining whether the current maximum received signal strength value is a first maximum received signal strength value; calculating a current indoor position of the user device based on the constant path loss exponent and the current maximum received signal strength value when a determination is that the current maximum received signal strength value is the first maximum received signal strength value; and outputting the current indoor position.

Abstract: A signal enhancer has a framework, a concave reflector having an axis of reflection, joined to the framework in a manner that direction of the axis of the reflector may be varied, and a support a cellular telephone joined to the axis in a manner that a cellular telephone may be placed and held in the support at different distances from the reflector along the axis of the reflector.

Abstract: A system and method for detecting unauthorized vehicle movement that includes measuring a resting angle of a vehicle using a vehicle sensor; thereafter, detecting a change in the measured resting angle of the vehicle; determining that the detected change is not authorized; and sending an alert message based on the determination via a vehicle telematics unit.

Abstract: A calibration device, capable of calibrating a gain of a radiometer, includes an actuator and a micro-electromechanical-system (MEMS) unit. The actuator receives a calibration signal outputted from a control unit. The MEMS unit is coupled to the actuator, in which the actuator enables the MEMS unit to shield an antenna of the radiometer according to the calibration signal, such that the radiometer generates an environmental signal according to an equivalent radiant temperature received from the MEMS unit, and the control unit calibrates the gain of the radiometer according to the environmental signal.

Abstract: A directional antenna is disclosed. The directional antenna may include a support structure for defining a support surface; a first antenna stack positioned on the support surface, the first antenna stack having multiple antenna elements oriented in a first orientation, allowing the first antenna stack to concentrate radiations in a first direction; a second antenna stack positioned on the support surface, the second antenna stack having multiple antenna elements oriented in a second orientation, the second orientation being rotated a predetermined angle with respect to the first orientation, allowing the second antenna stack to concentrate radiations in a second direction different from the first direction; and a controller configured to selectively activate at least one of the first antenna stack or the second antenna stack to steer the radiations of the directional antenna in different directions without physical/mechanical movement of the antenna stacks.

Abstract: This disclosure provides a range side lobe removal device, which includes a pulse compressor for acquiring a reception signal from a radar antenna and generating a pulse-compressed signal by performing a pulse compression of the reception signal, a pseudorange side lobe generator for generating a pseudo signal of range side lobes of the pulse-compressed signal based on the reception signal, and a signal remover for removing a component corresponding to the pseudo signal from the pulse-compressed signal.

Abstract: A method, system, and computer program product for transmitting traffic congestion routing data to a community of global positioning system (GPS) devices. Community routing logic of a community routing system (CRS) receives a route request containing the current location and desired destination of a GPS device. The CRS may use the community routing logic to determine a path that the user of the GPS device should travel on to best minimize driving time and traffic conditions for a community of users of the CRS. The CRS considers road capacity, current traffic conditions, and historical traffic data for roads and alternate roads along a preferred route. The CRS also considers routes previously taken by the GPS device. Additionally, the CRS may receive information about routes taken by other GPS devices to further improve future routes of the community of GPS devices.

Abstract: A method for determining beamformer scattering parameters for a plurality of phased array radar antenna subarrays that each include a radiating (e.g., dipole) component and a beamformer component provides for obtaining for the plurality of phased array radar antenna subarrays a plurality of electromagnetic measurements at a plurality of ports. Analogous electromagnetic measurements are obtained for a reference subarray including a radiating component but absent a beamformer component. The plurality of phased array radar antenna subarray electromagnetic measurements and the reference subarray electromagnetic measurements provide a plurality of beamformer scattering parameter values for the plurality of phased array radar antenna subarrays that may be used in modeling and calibrating a phased array radar apparatus that may be assembled from the plurality of phased array radar antenna subarrays.

Abstract: A method for wirelessly transmitting geographic coordinate information and a system and apparatus implementing the method. The method may include obtaining a latitude coordinate and a longitude coordinate, correlating a first radio frequency to the latitude coordinate, correlating a second radio frequency to the longitude coordinate, transmitting a signal at the first radio frequency, and transmitting a signal at the second radio frequency.

Abstract: A system for engaging hostile air or space threats with a defensive missile, where the defensive missile comprises an antenna for receiving global positioning system (GPS) signals. A global positioning system receiver is coupled to said antenna, for receiving global positioning system signals directly from global positioning system satellites and global positioning system signals reflected from the threat. A processing arrangement processes the direct and reflected global positioning system signals for determining the position and velocity of the threat. Vectoring controls are coupled to the processing arrangement, and are responsive to the location of the threat for directing the defensive missile toward the threat. In a particular embodiment, the antenna of the defensive missile is directionally controllable, and the defensive missile includes an antenna direction controller responsive to the processor for directing at least a beam of the antenna toward the threat.

Abstract: Wireless receiver for receiving a plurality of co-existing wireless signals respectively from different positioning systems, includes an analog frontend and an analog-to-digital converting unit. The analog frontend is arranged to convert bands of the co-existing wireless signals into a plurality of corresponding intermediate bands by a local frequency and to provide an intermediate signal including the intermediate bands. The analog-to-digital converting unit is coupled to the analog frontend, and is arranged to convert the intermediate signal to a digital signal, wherein an operation band of the analog-to-digital converting unit covers the plurality of intermediate bands.

Abstract: This disclosure provides a waveguide converter, which includes a first waveguide for propagating an electromagnetic wave, a second waveguide for being inputted the electromagnetic wave from the first waveguide and propagating the electromagnetic wave in a direction different from the propagating direction of the electromagnetic wave in the first waveguide, and an elongated-plate-shaped inner conductor arranged between the first waveguide and the second waveguide so that end portions of the inner conductor are exposed to the inside of the first waveguide and the second waveguide, respectively.

Abstract: A method of operating a multi-function phased array radar system having an antenna array populated with dual-pol antenna elements is described. The method includes selectively controlling individual dipoles of each dual-pol antenna element in order to operate the array in either a polarimetric mode with improved cross-pol isolation, or in a multi-mission mode, wherein a plurality of singularly-polarized signals are produced.

Abstract: Methods and apparatus for navigating with the use of correlation within a select area are provided. One method includes, storing data required to reconstruct ranges and associated angles to objects along with statistical accuracy information while initially traversing throughout the select area. Measuring then current ranges and associated angles to the objects during a subsequent traversal throughout the select area. Correlating the then current ranges and associated angles to the objects to reconstructed ranges and associated angles to the objects from the stored data. Determining at least one of then current location and heading estimates within the select area based at least in part on the correlation and using the least one of the then current location and heading estimates for navigation.

Abstract: Some demonstrative embodiments include devices, systems and/or methods of wireless communication via multiple antenna assemblies. For example, a device may include a wireless communication unit to transmit and receive signals via one or more quasi-omnidirectional antenna assemblies, wherein the wireless communication unit is to transmit, via each quasi-omnidirectional antenna assembly, a plurality of first transmissions, to receive, in response to the first transmissions, a plurality of second transmissions from another device via one or more of the quasi-omnidirectional antenna assemblies, and, based on the second transmissions, to select at least one selected transmit antenna assembly for transmitting to the other device and a selected receive antenna assembly for receiving transmissions from the other device. Other embodiments are described and claimed.

Abstract: An intelligent backhaul system is disclosed for deployment in the presence of existing radio systems. A backhaul system for co-channel deployment with existing licensed and unlicensed wireless networks, including conventional cellular backhaul radios, Common Carrier Fixed Point-to-Point Microwave Service, Private Operational Fixed Point-to-Point Microwave Service and other FCC 47 C.F.R. §101 licensed microwave networks is disclosed. Processing and network elements to manage and control the deployment and management of backhaul of radios that connect remote edge access networks to core networks in a geographic zone which co-exist with such existing systems or other sources of interference within a radio environment are also disclosed.

Abstract: An apparatus and method for improving RFID tag reading. The apparatus includes a substrate element having a predetermined active area, and a plurality of resonant elements each having a resonant frequency, a quality factor, and a response band. The resonant elements are distributed within the predetermined active area of the substrate element for scattering interrogation electromagnetic waves radiated thereupon from the RFID reader. At least one resonant element has a null-direction thereof orientated in a direction that is substantially orthogonal to a line extending from a center of the resonant element to a center of an antenna of the RFID reader.

Abstract: A system and method for mitigating multipath interference of signals in environments to determine the line of sight signal propagation.