79 results about "Dipole array" patented technology

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The invention relates to the technical field of electronic information, in particular to a multi-band cooperative interference gallium nitride phased-array antenna control method and system. The method comprises the steps of extracting key parameters of electromagnetic signals, and generating a cooperative interference strategy combination; mapping the frequency band optimization weight to a dynamic working mode of the gallium nitride power amplifier unit, adjusting the radiation pattern characteristics of the reconfigurable dipole array according to the power distribution parameters, and constructing a composite beam forming framework; phase weighting and spatial multiplexing are carried out on the interference signals of all the frequency bands based on the composite beam forming architecture, and a multi-beam interference cluster is generated; thermodynamic state data of the gallium nitride power amplifier module in the multi-beam interference cluster generation process are collected in real time, and heat dissipation parameters of the liquid cooling system are regulated and controlled according to the thermodynamic state data. Intelligent collaboration and accurate pointing of multi-band interference signals are realized, the interference coverage range and the energy utilization rate are improved, and an efficient interference system integrating electromagnetic sensing, multi-beam collaboration and thermal management is formed.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The invention discloses a broadband electromagnetic radiation interference characteristic modeling method for a shielding cable network. The method comprises the following steps: 1) obtaining a scattering parameter matrix of a shielding connector and a transmission parameter matrix of a bent shielding cable; 2) constructing an equivalent N port model of the shielding connector by using the scattering parameter matrix, and deducing a transmission parameter matrix of the shielding connector; 3) establishing a multi-conductor transmission line equation reflecting the distribution of interference current on the shielding cable by using the shielding cable transfer impedance; 4) cascading the transmission parameter matrixes of all the bent shielding cables and the shielding connectors to obtain an overall transmission parameter matrix of the shielding cable network; and 5) solving the multi-conductor transmission line equation in combination with the boundary constraint condition to obtain the common-mode interference current of the shielding layer of the shielding cable, and calculating the electric field radiation of the shielding cable network through the dipole array theory. The method is suitable for uniform and non-uniform shielding cables and shielding cable networks of single-core and multi-core wire harness shielding wire types, and has good universality.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

An antenna assembly includes a balanced antenna feed configured to receive a differential signal and a ground plane. The assembly further includes a first conductive dipole arm in planar alignment with a surface of the ground plane and a second conductive dipole arm in planar alignment with the surface of the ground plane and adjacent to the first conductive dipole arm. The assembly further includes a first feedline in electrical communication with the first conductive dipole arm and the balanced antenna feed and a second feedline in electrical communication with the second conductive dipole arm and the balanced antenna feed. The assembly further includes a conductive wall (“H-wall”) in electrical communication with the ground plane and having an end adjacent to, and physically separate from, the second conductive dipole arm. The H-wall has an axial length orthogonal to the ground plane.

The invention relates to the technical field of antennas, in particular to a millimeter wave three-beam all-dielectric lens antenna, which comprises a group of 2 * 2 magnetoelectric dipole array antennas and an all-dielectric circular lens structure, the 2 * 2 magnetoelectric dipole array antenna is used as a feed source and is arranged on the plane side of the all-dielectric circular lens structure, and the feed source directly faces the geometric center of the all-dielectric circular lens structure; the all-dielectric circular lens structure has a direction-controllable three-beam radiation capability; through the reasonable medium structure layout, the multi-beam coverage and the frequency point adaptability are considered while high-gain output is ensured, and the contradiction between the performance and the practicability of the existing scheme is overcome.

The invention relates to the technical field of electromagnetic fields and microwaves, and provides an ultra-wideband tight coupling metal dipole antenna array with a wave trapping characteristic, which comprises a tight coupling metal dipole array positioned at the lower part and a planar wave absorbing structure positioned at the upper part, the tight coupling metal dipole array comprises M * N metal dipole units, the planar wave absorbing structure comprises M * N planar wave absorbing units, and each metal dipole unit comprises a left gradual change type dipole arm, a right gradual change type dipole arm, a left coupling metal piece, a right coupling metal piece, a feed printed board, a planar metal floor and a feed coaxial line; the planar wave absorbing unit comprises a supporting dielectric sheet, a planar dielectric substrate and printed patch layers, and the printed patch layers are printed on the upper surface and the lower surface of the planar dielectric substrate. And the central frequency point and the bandwidth of the notch frequency band can be adjusted by changing the electrical length and the rotation angle of the patch in the printed patch layer.

The invention relates to the technical field of array radiation pattern synthesis, in particular to a linear array radiation pattern synthesis method and system based on hybrid optimization. The method comprises the following steps: obtaining dipole array optimization parameter data; initializing an array parameter and an FGO population according to the acquired data; constructing a KAN proxy model and training the model by using an FGO population; performing hybrid iterative optimization on the KAN proxy model fused with the FGO; and performing array antenna pattern synthesis by using the optimized KAN proxy model. According to the probability hybrid evaluation strategy based on the KAN proxy model, through the whole FGO iteration process, low-potential candidate solutions are effectively screened out by dynamically allocating accurate electromagnetic simulation resources (such as high-proportion proxy evaluation in the initial stage and gradually-increased accurate verification in the later stage), and the calling frequency of a high-cost moment method is remarkably reduced.

The invention relates to the field of dipole source construction, in particular to a dipole source construction method based on finding a minimum impedance path and a computer device. The method comprises the following steps: determining the composition of a dipole model according to PCB noise source radiation on the basis of a multistage expansion theory, and calculating a dipole magnetic field according to a mirror image principle and a superposition theorem; based on the relation between the distance between an observation point and a radiation source and the magnetic field intensity and a near-field scanning result, initial value assignment calculation is carried out on the uniformly-distributed dipole array; the impedance of the dipole array is calculated through the negative correlation between impedance and current and the positive correlation between dipole moment and current, and a dipole minimum impedance path is found based on an average distance norm and an improved minimum path algorithm; and amplitude optimization is carried out on the dipoles forming the minimum impedance path by using a differential evolution algorithm, and the construction accuracy of the dipole equivalent source is evaluated. The method is suitable for constructing the simplified equivalent radiation source model of the PCB.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The present invention discloses a dual-polarization omnidirectional rectenna using a radio frequency power combining scheme. The antenna includes an orthogonally arranged horizontal polarization unit and a vertical polarization unit. The horizontal polarization unit includes a horizontal polarization group, which includes a tapered balun. The center point of the tapered balun is a feeding point. The tapered balun has a plurality of fan-shaped radiating branches evenly distributed circumferentially, and each of the radiating branches is connected to the tapered balun via a gradient microstrip line. The vertical polarization unit includes a reflective layer and a vertical polarization group parallel to the reflective layer. The vertical polarization group includes a connected gradient balun and a dipole, and the feeding point is located at the center of the gradient balun. The present invention provides a circumferentially arranged omnidirectional antenna array to receive horizontally polarized electromagnetic waves, and designs a four-dipole array to receive vertically polarized electromagnetic waves. This allows the antenna to operate in multiple polarization states and has good omnidirectional characteristics.

The invention discloses a wave-absorbing metasurface low-profile wide-angle RCS (radar cross section) reduction tight coupling dipole antenna. The array is composed of a radiation layer, a middle layer, a wave-absorbing metasurface layer and a metal ground layer. The top layer of the radiation layer is a dipole antenna, and the tail ends of radiation arms of the dipole antenna are loaded with coupling patches through metal through holes; the middle layer is a dielectric substrate; the top layer of the wave-absorbing metasurface layer is a pair of symmetrical trident-shaped resistive films loaded with metal through holes, and the bottom layer of the wave-absorbing metasurface layer is a dielectric substrate; the metal ground layer is located at the lowermost layer. According to the invention, the wave-absorbing metasurface is embedded in the tight coupling dipole array antenna to replace a traditional metal ground, so that a low-profile structure is realized. According to the antenna, within the frequency band of 7-14 GHz, the wave absorbing efficiency is higher than 75% when electromagnetic waves are incident at the wide angle of 0-60 degrees, meanwhile, good radiation performance and wide-angle scanning capacity are kept, and the radar cross section is remarkably reduced. The method can be popularized to the low radar cross section design of a traditional antenna, and is suitable for radar and wireless communication systems.

The application provides a high-vibration-resistant geological radar probe and method suitable for underground drilling of a coal mine, and relates to the technical field of coal mine safety exploration. The probe comprises a main pipe section, a connecting structure connected to the upper part of the main pipe section, and a probe pipe section connected to the lower part of the main pipe section. The probe pipe section comprises a sealed pressure-bearing outer pipe, an axial water passage formed in the inner part of the sealed pressure-bearing outer pipe, an omnidirectional transmitting antenna and a reconfigurable directional receiving antenna array arranged on the inner wall of the sealed pressure-bearing outer pipe, and a water-proof isolation cabin. A transceiver circuit module is arranged in the water-proof isolation cabin. The transceiver circuit module is electrically connected to the omnidirectional transmitting antenna and the reconfigurable directional receiving antenna array. The application adopts a mechanical motion-free directional receiving scheme of "cross-shaped dipole array + PIN diode electrically-controlled switching", and is free of rotating components and bearing structures, so that mechanical damage caused by drilling vibration in the underground is fundamentally avoided.

The present invention relates to the field of dipole source construction, and more specifically to a dipole source construction method and computer device based on finding a minimum impedance path. The method includes: determining the composition of a dipole model based on the radiation of a PCB noise source based on multi-level expansion theory, calculating the dipole magnetic field based on the mirror principle and superposition theorem; calculating the initial value of a uniformly distributed dipole array based on the relationship between the distance between the observation point and the radiation source and the magnetic field intensity, and the near-field scanning result; calculating the impedance of the dipole array based on the negative correlation between impedance and current and the positive correlation between dipole moment and current magnitude, and finding the dipole minimum impedance path based on the average distance norm and an improved minimum path algorithm; using a differential evolution algorithm to optimize the amplitude of the dipoles that constitute the minimum impedance path, and evaluating the accuracy of the dipole equivalent source construction. The present invention is suitable for constructing a simplified equivalent radiation source model for a PCB.

This invention discloses a design method and structure for a half-mode dielectric ridge parallel plate waveguide dual-beam wide-angle scanning leaky antenna based on PCB technology. Manufactured using a fully printed circuit board process, it includes a core structure of a half-mode dielectric ridge parallel plate waveguide transmission line formed by laminating three dielectric substrates, a metallized via array disposed at the edge of the waveguide's non-radiating open aperture to suppress energy leakage, and a periodic dipole array symmetrically arranged on the radiating open aperture side of the waveguide. This invention solves the technical problems of high manufacturing cost, narrow scanning range, and difficulty in implementing dual beams in traditional leaky antennas, providing a low-cost, high-performance, and easily integrated antenna solution.

The invention relates to an antenna device (102) comprising a low-frequency array (104) of low-frequency dipoles (112) having respective centres (112c) aligned on a so-called vertical axis (A1); a high-frequency array (106) of high-frequency dipoles (114) having respective centres (114c) following one another vertically; and a support (115) for the low-frequency dipoles (112) and the high-frequency dipoles (114). The device is characterised in that the high-frequency dipoles (114) are arranged so that the centre (112c) of each low-frequency dipole (112) is positioned vertically between the centres (114c) of a pair (P1; P2) of two high-frequency dipoles (114).