An antenna device includes a first antenna group comprising multiple antennas, configured to receive and transmitting signals; a second antenna group comprising multiple antennas, configured to receive and transmitting signals; a processor coupled to the first antenna group by a first electronic switch, coupled to the second antenna group by a second electronic switch, configured to divide radiation pattern of antenna combination of the first antenna group and the second antenna group into a predetermined number of characteristic patterns, and further configured to calculate similarities of the characteristic patterns and the RSSI of each characteristic pattern; wherein when the antenna device is in operation, the processor reads and analyzes RSSI of the signals, and compares with the RSSI of the characteristic patterns, and then determines the matched characteristic pattern group according to results of the comparisons and the similarities of the characteristic patterns.

A method for determining presence of an object via a vehicular radar sensing system includes providing a radar sensor having a plurality of antennas, which includes a plurality of transmitting antennas and a plurality of receiving antennas. The plurality of antennas includes a plurality of sets of antennas, each set having a V shape or an X shape, and with each of the shaped sets of antennas having an apex. A signal feed is provided to the apex of each of the shaped sets of antennas. A radar beam is transmitted via the plurality of transmitting antennas and side lobes of the transmitted radar beam are reduced via the plurality of shaped sets of antennas. An output of the receiving antennas is communicated to a processor, and the processor determines presence of one or more objects exterior the vehicle and within the field of sensing of the radar sensor.

Exemplary drone detection, tracking, and control systems as well as related methods are provided. An exemplary system can include directional antennas and a movement system that moves the directional antennas in various azimuth and elevation orientations. A control system includes a video signal processor, a transceiver, an input/output system, a user interface, a wireless system, a machine instruction storage medium, and a plurality of machine readable instructions that operate the antenna assembly to detect, orient on, and record at least a video signal from a moveable platform as well as generate a graphical user interface (GUI) that shows a map with a user location, the antenna system location, and orientation of the antenna assembly with line of bearing. The GUI also displaying a plurality of radio channel and detected signal information. A display is provided that displays the GUI and enables user interaction with the GUI and system.

A transition structure for millimeter wave is provided. The transition structure includes a first layer signal element coupled to an end of a first transmission line and a plurality of first layer ground elements surrounding the end of the first transmission line equidistantly from the end of the first transmission line and disposed along two opposite sides of a strip body of the first transmission line equidistantly from the strip body of the first transmission line. The transition structure further includes an intermediate layer signal element coupled to the first layer signal element and a plurality of intermediate layer ground elements surrounding the intermediate layer signal element quasi-coaxially. A multilayer transition structure including a multilayer structure and the transition structure is also provided. Therefore, the problem of operating frequency caused by the thickness of the multilayer structure can be overcome, thereby increasing the resonance frequency of the multilayer structure.

An antennas-in-package (AiP) verification board is provided, which includes a carrier board configured for disposing an antenna array or an electronic circuit; and a plurality of SMPM connectors. The plurality of SMPM connectors are arranged in an array on the carrier board and electrically connected with the antenna array or the electronic circuit of the carrier board for testing the characteristics of the antenna array on the carrier board or the characteristics of the electronic circuit on the carrier board. The AiP verification board is fixed on a beamforming test platform. In addition to the aforementioned AiP verification board, an AiP verification board including a plurality of adaptor structures and an AiP verification board including a plurality of connectors and a plurality of adaptor structures are also provided.

Provided is a rapid over-the-air (OTA) production line test platform, including a device under test (DUT), an antenna array and two reflecting plates. The DUT has a beamforming function. The antenna array is arranged opposite to the DUT, and emits beams with beamforming. Two reflecting plates are disposed opposite to each other, and are arranged between the DUT and the antenna array. The beam OTA test of the DUT is carried out by propagation of the beams between the antenna array, the DUT and the two reflecting plates. Accordingly, the test time can be greatly shortened and the cost of test can be effectively reduced. In addition to the above-mentioned rapid OTA production line test platform, platforms for performing the OTA production line test by using horn antenna arrays together with bending waveguides and using a 3D elliptic curve are also provided.

A reference signal distribution system is disclosed. The reference signal distribution system can include a power splitter to create, from a frequency-divided reference signal, a counterclockwise divided reference signal and a clockwise divided reference signal. The reference signal distribution system can include a distribution ring to provide the counterclockwise divided reference signal to a ring tap, and provide the clockwise divided reference signal to the ring tap. The reference signal distribution system can include a ring tap to produce a phase synchronization signal based the counterclockwise divided reference signal and the clockwise divided reference signal. The reference signal distribution system can include an analog regenerative frequency divider to produce a common phase reference signal based in part on the phase synchronization signal.

Telecommunication systems for aircraft and other vehicles are described having one or more antennas with a plurality of modular, radiating elements disposed about and coupled to a central element. Each of the plurality of modular, radiating elements comprises transmitting and receiving elements. The antenna may be mounted to an adapter plate along with another antenna of similar construct.

Examples disclosed herein relate to a phased array antenna system for use with a Low Earth Orbit (LEO) satellite constellation. The phased array antenna system has a plurality of antenna panels positioned in a dome and an antenna controller to control the plurality of antenna panels, the controller directing a first antenna panel to transmit a first signal and a second antenna panel to transmit a second signal to a LEO satellite, the first signal having a first phase and the second signal having a second phase different from the first phase.

A quick solder chip connector is provided that can include a body, a radio signal conductor housed in the body, and one or more grounding pins integrally formed in the body. In some embodiments, the radio signal conductor can include a first end configured to electrically connect to a first transmission line formed on a first printed circuit board and a second end configured to electrically connect to a second transmission line formed on a second printed circuit board and can provide a radio frequency signal path between the first transmission line and the second transmission line. The one or more grounding pins can extend from opposing ends of the body and can be configured to physically support the body and the radio signal conductor between the first printed circuit board and the second printed circuit board.