8 results about "Antenna geometry" patented technology

A microstrip patch log periodic antenna (MSPLPA) may include a ground plane, a dielectric material, a printed circuit board comprising a microstrip patches. Each of the microstrip patches may be configured to transmit and / or receive signals. The dielectric material may be disposed between the ground plane and the printed circuit board. Each of the microstrip patches may be frequency scaled.

An apparatus comprising: means for receiving configuration information for at least one reference signal from a base station, the configuration information comprising at least one of the following: an antenna geometry of the base station; a first indication indicating at least one antenna to be used by the apparatus for measuring at least one reference signal; a second indication indicating a resource for at least one reference signal; a third indication indicating feedback information for the at least one reference signal requested from the apparatus; wherein the apparatus comprises: means for receiving at least one reference signal from a base station, wherein the at least one reference signal is received from a subset of antennas of the base station; means for determining at least one measurement of the at least one reference signal using the configuration information; means for transmitting at least one measurement of the at least one reference signal to the base station.

The embodiment of the invention provides a near-field multi-user SWIPT system beam design method and system based on MA. The method comprises the following steps: establishing a beam position optimization model of a near-field multi-user SWIPT system; wherein the beam position optimization model is used for optimizing an antenna position and a beam vector; determining a plurality of pieces of state information of near-field multiple users; initializing the plurality of pieces of state information to obtain a plurality of pieces of initialized state information; and performing antenna beam optimization on the initialized multiple pieces of state information through a beam position optimization model, and determining optimal antenna beam data. According to the scheme, the total rate of the system can be maximized under the conditions of meeting user rate and energy requirements, transmitting power and antenna geometric constraints.

A printed circuit board (PCB) assembly supports selecting alternate printed antenna geometries of an antenna by selectively placing common PCB components (for example, zero-ohm resistors) on the PCB. The desired zero-ohm resistors may be placed using automated part placement equipment commonly used to place surface mount components. The configurable antenna comprises at least one antenna section having a plurality of antenna components. Zero-ohm resistors are selectively placed in series along the antenna section to couple the desired conductor components when manufacturing the PCB assembly. With some embodiments, a configurable antenna includes a low frequency antenna section that may be selectively coupled with a high frequency antenna section antenna through one or more zero-ohm resistors, where each antenna section has a plurality of antenna components. With this approach, a common printed circuit board may be used to support a plurality of antenna variations spanning different frequency bands.

The application provides an antenna phase center calibration method, system, terminal and readable storage medium. The method comprises the following steps: collecting carrier phase observation data corresponding to a to-be-tested antenna and a reference antenna; calculating a to-be-tested antenna geometry-free distance combination observation value and a reference antenna geometry-free distance combination observation value; subtracting the to-be-tested antenna geometry-free distance combination observation value corresponding to a frequency from the reference antenna geometry-free distance combination observation value to obtain an initial differential combination observation value, combining a preset cycle slip threshold to obtain a non-cycle slip differential combination observation value, and constructing a target differential combination observation value; fitting a phase center variation model corresponding to the to-be-tested antenna based on the target differential combination observation value and a preset satellite; and calibrating the phase center of the to-be-tested antenna based on the phase center variation model. The antenna phase center calibration is completed by eliminating external error interference and fitting the phase center variation model, and the antenna phase calibration accuracy is improved.

An inflatable antenna structure composed of flexible, electrically conductive material is disclosed. When inflated, for example, with air or lighter-than-air gas, the structure assumes antenna geometries suitable for a wide range of RF transmission and reception requirements. Also, when inflated, the structure can be lofted and deployed hundreds or more feet into the sky, enabling extended communication capabilities. The structure includes at least one inflation-deflation port and at least one electrical-connectivity port. One or more embodiments include offering significant advantages over conventional antenna structures with respect to weight, size, portability, performance, and manufacturability.

The invention discloses a hybrid polarization wave control device with stable antenna system time delay, and belongs to the technical field of communication signal processing. The device comprises an instruction receiving module, a wave control central control module, a wave control code calculation module and a wave control code sending module. The wave control central control module calculates phase increasing factors in the azimuth direction and the distance direction according to the pointing angle; and the wave control code calculation module calculates the phase shift code of each TR assembly from the geometric center of the antenna, so that the phase shift code of the geometric center of the antenna is fixed to be a half corresponding value of the maximum time delay capability of the system. The wave control code calculation module carries out time division multiplexing, calls H polarization and V polarization ground state error data stored in the same RAM in sequence, calculates H and V polarization channel wave control codes and stores the H and V polarization channel wave control codes in different addresses of the same RAM, and in a left-right rotation circle alternating polarization mode, the wave control code sending module directly carries out 90-degree superposition on linear polarization wave control codes according to PRF parity and then sends the linear polarization wave control codes without repeated calculation. And the PRF frequency is improved.

This application relates to a method and system for determining the beam footprint of a satellite phased array antenna. The method includes: establishing a first coordinate system with the antenna's geometric center as the origin, a second coordinate system with the Earth's center as the origin, a third coordinate system representing the radiation angles of the phased array antenna's radiation pattern, and a fourth coordinate system representing the antenna beam footprint on the Earth's surface; obtaining multiple antenna azimuth and elevation angles in the third coordinate system, and obtaining the gain value corresponding to each combination of antenna azimuth and elevation angles; mapping each combination of antenna azimuth and elevation angles to the fourth coordinate system based on the satellite's orbital altitude and the Earth's radius to obtain multiple combinations of surface azimuth and elevation angles; compensating for the gain value based on the path loss factor to obtain the surface gain value; and determining the antenna beam footprint in the fourth coordinate system based on the surface azimuth and elevation angles and the corresponding surface gain values, thereby enabling accurate determination of the antenna beam footprint.