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JP7008216B2 |
The radar system detects positions of targets existing in mutually-separated areas in first and second directions outside the radar system, and includes: a circuit board (1) whose surface is arranged parallel with the first and the secon...
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JP7006856B1 |
Distance information, which is information on the distance between the power transmission device (10) and the power receiving device (11), and environmental information, which is information on the environment of the power transmission s...
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JP6988278B2 |
To provide an array antenna capable of restraining deterioration of side lobe even when used in broadband.In an array antenna where a first subarray including multiple radiation elements and a second subarray including multiple radiation...
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JP6971841B2 |
To achieve a radar device that enables a wide- range and short-time target search, as suppressing a falling of a detection distance.A radar device 50 comprises: a transmission unit 20 that generates a transmission pulse; an antenna unit ...
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JP2021170000A |
To provide a meta secondary radar.A radar includes an antenna. The antenna has a radiation pattern forming a sum (SUM) channel, a radiation pattern forming a difference (DIFF) channel and a pattern forming a control (CONT) channel. A fir...
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JP6943577B2 |
A radar system (18L,18R,100) to detect and track objects in three dimensions. The radar system including antennae (120,122,126), transmit, receive and processing electronics is all in a small, lightweight, low-cost, highly integrated pac...
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JP2021524710A |
The present application relates to sum and difference mode antennas including a first radiator, a second radiator, a first source of excitation, and a second source of excitation. The first radiator contains a first segment and a second ...
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JP6920198B2 |
According to the invention, a device and a method are provided for determining the position of an object, in particular a moving object, in the three-dimensional space. The device comprises at least two switchable transmitting antennas h...
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JP6910028B2 |
To simplify the circuit configuration of the own device and reduce the cost of the own device when the other device has a radio wave radiation source and the own device calculates the radio wave arrival angle in order to calculate the or...
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JP6883592B2 |
A polarimetric phase array radar system (PPARS) for determination of parameters of a target and a method of operating the PPARS are described. The PPARS includes an array having transceiver elements configured to transmit transmitting si...
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JP6862580B2 |
This application discloses an antenna apparatus, including an antenna array and an adjustable phase shifter. In each row of antenna elements in the antenna array, antenna elements on a same radio frequency RF channel are spaced by M ante...
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JP6833344B2 |
To obtain sufficient freedom and improve the directional accuracy of a beam, thus reducing a side lobe.An antenna device according to an embodiment comprises: an array antenna having N×M antenna elements (n, m=natural numbers equal to o...
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JP6814386B2 |
To provide an antenna device and a distribution/non-distribution switching circuit that allow a multi-beam antenna with small interference between adjacent beams to be constructed at low costs and restrain performance deterioration when ...
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JP6789086B2 |
To provide a compact substrate side face horn antenna which detects the existence and the azimuth of an object in a wide angle.The substrate side face horn antenna includes: a dielectric substrate 1 which forms waveguide parts of wavegui...
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JP2020180788A |
To provide a signal processing device that reduces phase fluctuations that occur during the operation of an antenna system.A signal processing device includes: a power supply 110 to which a received signal received by an antenna is input...
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JP2020144006A |
To obtain a signal processor which can suppress the calculation load of signal processing without decreasing the angle resolution of target search.A signal processor 1 comprises: a DBF processor 20 for forming a first shape beam and a se...
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JP6744157B2 |
To enable a radio guidance device to perform an approach detecting function by widening the angle of a transmission/reception beam without transmission blind in an approach distance in addition to detecting and tracking function.The radi...
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JP2020098201A |
To provide a method for measuring direction accuracy of a secondary radar.The method includes: a step in which an unsolicited asynchronous response (61) of a long ADS-B squitter type transmitted by a target existing in an atmospheric env...
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JP6705577B1 |
The patch antenna (10) includes a ground conductor pattern (13), a feeding conductor pattern (11 and 12), and a feeding wiring (15), and the feeding conductor pattern (11 and 12) becomes a ground conductor pattern (13). The feed conducto...
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JP6656408B2 |
An antenna device is provided with: a ground conductor (1) provided with a first feed point (2) and a second feed point (3); a coaxial line (4) for which one end of an inner conductor (4a) is connected to the first feed point (2) and one...
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JP6642771B1 |
Leakage of the sum signal into the difference signal in the analog circuit of the tracking receiver causes a bias in the directivity direction error, and the tracking accuracy deteriorates. The complex sum signal generators 8S and 9 that...
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JP6641805B2 |
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JP2020016556A |
To provide an angle error detector with which it is possible to grasp in real time and correct a change of phase due to the passage through a signal path of a sum or difference signal used for detecting the angle error of an antenna used...
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JP6622118B2 |
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JP6610840B2 |
The present invention obtains a correction value that corrects measurement angle error signals more accurately than conventional methods even in a case where a radio wave signal-to-noise ratio is low, and thus tracks a communication coun...
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JP6605744B2 |
Antenna systems and methods of detecting RF signals received from a field of view (FOV) are presented, employing intersecting fan beam pluralities formed by associated columns or rows of antenna elements and cross-correlation of componen...
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JP6602681B2 |
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JP6584714B1 |
It is connected to each of a plurality of sub-array antennas (1-1) to (1-N) having a plurality of element antennas and a plurality of sub-array antennas (1-1) to (1-N), and each sub-array antenna. Multiple sum signal generators (3-1) to ...
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JP6555358B2 |
An antenna device includes a plurality of antenna element groups including a plurality of antenna elements arranged in a horizontal direction. The plurality of antenna element groups are arranged in multiple stages in a vertical directio...
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JP6556368B2 |
A method of exchanging data involving at least one apparatus (APP) and user terminals, or UTs. The method comprises: - receiving measurements data from the UTs, - choosing at least one precoding subset associated to groups of antennas (G...
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JPWO2018061903A1 |
To provide a communication device, a communication terminal, and a control method of a communication device capable of preventing deterioration of communication performance. A communication device 600 includes a power feeding unit 610, a...
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JP6540431B2 |
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JP6534950B2 |
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JP2019068285A |
To provide a technique for controlling an antenna to point in a direction suitable for communication.A communication device 30 includes a detection antenna 200, multiple direction specification antennas 202, and a communication antenna 2...
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JP6501981B2 |
An antenna device includes a beamforming circuit (3) that forms a radio wave in a first frequency band, including two polarized waves orthogonal to each other, and outputs the radio wave in the first frequency band, a beamforming circuit...
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JP6498782B2 |
Cellular array implementations with multiple steerable spotlight beams irradiated from a common aperture are disclosed herein. Such an approach can easily be adapted to suit various geographical population densities and distributions. Th...
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JP6495756B2 |
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JP6494755B2 |
A support of an adjustability of an antenna beam direction is rendered less expensive in terms of implementation by the following measure: a beam forming network switchable between fixedly preconfigured beam forming states is coupled to ...
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JP6490830B2 |
The present invention relates to a method and control system for adapting beam patterns generated by at least one array antenna serving one or more users. Each array antenna comprising multiple antenna subarrays within an aperture and is...
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JP6483293B2 |
A beamforming device is provided. The beamforming device comprises: a beam deriving unit for deriving, among multiple reception beams, a first reception beam receiving, from a terminal, the first largest reception signal and a second rec...
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JP2019029719A |
To obtain an antenna device that can realize miniaturization.An antenna device 10 includes transmission and reception modules 12 the number of which is the same as the number of antenna elements, which executes processing of changing and...
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JP2019024148A |
To provide a communication device and a communication method that can simultaneously direct main beams to reception stations and transmission stations the number of which exceeds N RF systems included in its own device.A communication de...
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JP6462365B2 |
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JP2018155678A |
To provide a radar device with which it is possible to improve the freedom of sub-array block composition and suppress an increase in antenna size.A radar device 100 includes a beam forming unit 20 for forming a beam from the signal of a...
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JP2018157471A |
To provide an antenna device and a radar device capable of widening a detection range of a target.The antenna device includes a first substrate, a second substrate, a first transmitting antenna, and a first receiving antenna. The second ...
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JP6395862B2 |
The present invention discloses a multi-beam antenna system and a phase adjustment method for a multi-beam antenna system, and a dual-polarized antenna system, which relate to the field of communications technologies and implement a rela...
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JP2018129605A |
To suppress time for estimating a direction of a terminal device.A base station device includes a first reception unit that receives a transmission signal transmitted from a terminal device as a first reception signal via a first antenna...
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JP6368048B2 |
Embodiments of the present invention provide a beam forming network, including: a first 180-degree bridge for equal-power division, a 180-degree bridge for unequal-power division, a 90-degree phase shifter, and a second 180-degree bridge...
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JP6297679B2 |
A ground station antenna including a torus shaped reflector having multiple feed points along a focal arc in front of the reflector. The ground station antenna includes transceiver feeds having their electrical phase centers located on t...
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JP6289785B2 |
A signal combiner (33) specifies a weighting coefficient w for suppressing a grating lobe included in a composite signal S 3 obtained when combining a digital received signal S 1 and digital received signal S 2 stored by a signal calcula...
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