4results about How to "Guaranteed Phase Consistency" patented technology

This invention discloses a miniaturized four-channel combining module based on the TE20 mode, belonging to the field of millimeter-wave power combining technology. It includes a layered upper cavity, a mezzanine, a lower cavity, and an RF unit. The RF unit comprises a TE10-TE20 waveguide distributor, two amplification branches, and a TE20-TE10 waveguide combiner. Each amplification branch includes a TE20 mode filter, a waveguide-microstrip transition, a pair of amplifier chips, and a microstrip-waveguide transition connected sequentially. The TE10-TE20 waveguide distributor and the TE20 mode filter are disposed in the upper and lower cavities. The waveguide-microstrip transition, the pair of amplifier chips, and the microstrip-waveguide transition are disposed on opposite sides of the mezzanine. The TE20-TE10 waveguide combiner is disposed in the upper cavity, the mezzanine, and the lower cavity. This invention utilizes a high-isolation waveguide distributor / combiner to improve branch isolation, shorten the combining path, and has a compact overall structure with advantages such as wide bandwidth, high isolation, high combining efficiency, and miniaturization.

The invention discloses a three-way orthogonal coil receiving and signal merging method and a three-way orthogonal coil receiving and signal merging system for a rotary permanent magnet mechanical antenna, and belongs to the field of magnetic induction communication. The method comprises the following steps: performing analog conditioning and analog-to-digital conversion on received magnetic induction signals in each space direction, performing Hilbert transform on digital signals in each space direction, extracting instantaneous phase information of each channel, and obtaining complex signals in each space direction; and performing amplitude and phase coherence degree estimation on the complex signals in each spatial direction, determining a weight coefficient of each spatial direction based on the coherence degree between the complex signals in each spatial direction, and combining the complex signals in each spatial direction based on the weight coefficient of each spatial direction to obtain a combined signal. The signal amplitude of a receiving end signal is effectively improved, the signal-to-noise ratio is improved, and the direction robustness and the communication reliability of the system in a complex environment are enhanced.

This utility model discloses a shielded filter based on an integrated stripline resonator, belonging to the field of filter technology. It includes a resonator body with an RF connection line connected to it for signal input and output. Two resonator bodies are connected by a connecting post. A cavity houses both resonator bodies, shielding them. A mounting block is externally connected to the cavity, featuring through holes and a conformal curved surface for mounting the RF connection line. This shielded filter, through the cooperation of the resonator body and the cavity, forms a filter with a shielded cavity. This structure achieves filtering, and the integrated stripline design makes the filter easy to assemble, highly accurate, and ensures phase consistency.

The application discloses a kind of measuring device and method of satellite load active array, belong to satellite internet and 6G non-ground network test technical field.Device includes microwave darkroom, rotary table, multiple probe scanning frame and amplitude and phase controllable synthetic array.Satellite load active array to be measured is placed on rotary table, and radiation aperture is towards upwards;Multiple probe scanning frame is located above rotary table, and multiple antenna probes simultaneously collect near-field signal, and far-field pattern is obtained by near-far field conversion;Amplitude and phase controllable synthetic array is composed of amplitude and phase independently adjustable antenna unit, can be moved into above rotary table, and the electromagnetic wave of setting wave front is synthesized in the quiet zone covering the aperture of array to be measured, or each unit received signal is weighted and synthesized, to complete receiving directional diagram, transmit-receive frequency index, dynamic scene and system level performance measurement.The application shortens measurement distance, and measurement efficiency is improved by one to two orders of magnitude compared with single probe scanning, and flat installation reduces engineering difficulty, supports active array air interface measurement of no feed interface.