6 results about "Circular loop" patented technology

The application discloses a wave shape selection antenna, which comprises a first metal structure, a second metal structure, a wave shape selection structure and a feeding structure, the first metal structure is connected with the second metal structure, the second metal structure is connected with the wave shape selection structure, the first metal structure is realized by forming a dipole structure with a circular loop and a truncated end through a gap on a metal patch structure, and the second metal structure is realized by using a microstrip line structure; the wave shape selection antenna has the advantages that the wave shape selection planar structure is integrated with the antenna structure, the wave shape selection planar structure function and the antenna function are combined, and when the wave shape selection antenna is used in a wireless communication system, the structural complexity can be reduced.

A tension measurement and connection system for guy wires of a guyed wind measurement tower and its assembly method belong to the infrastructure technology field of the onshore wind power industry. The tension measurement and connection system is installed at the connection point between one end of the guy wire and the foundation tie rod of the guy wire reel, realizing the connection between the structural guy wire and the foundation tie rod. Simultaneously, during installation and construction, the tension of the guy wire is measured to ensure it reaches its design value, guaranteeing the safety of the entire structural system. It connects the main rod to the foundation tie rod via a U-shaped connecting rod and a circular loop, and a limiting nut secures the connecting crossbar to the U-shaped connecting rod, forming a closed-loop series structure. The guy wire is then fixed to the series structure using a clamp sleeve, a conical clamp, and clamp tightening bolts. A sensor installed on the sensor mounting bracket and the limiting nut ensure the pre-tension of the guy wire reaches its design value. This invention can simultaneously measure the pre-tension of the guy wire and connect it to the foundation tie rod of the guy wire reel, allowing the guy wire to perform its designed function and ensuring the safety of the wind measurement tower.

The application discloses a parameter acquisition method of a circular ring antenna array with equal-amplitude and in-phase patch feed, the antenna array comprises a metal ground plane and a plurality of equal-amplitude and in-phase excited antenna units arranged in a linear array on the metal ground plane, the antenna unit has a common mode port, each common mode port comprises two single ports, an active common mode reflection coefficient of the common mode port of the antenna unit is equal to half of the sum of common mode reflection coefficients of the two single ports, the common mode reflection coefficient of the single port is calculated first, and the active common mode reflection coefficient of the common mode port is indirectly obtained; the application has the advantages that the calculation process is simplified, the calculation amount is small, the time consumption is relatively short, and the application is beneficial to popularization and application in engineering practice.

The test and measurement apparatus includes an input unit that receives a non-return-to-zero (NRZ) waveform signal from a device under test, a ramp generator that generates a ramp sweep signal using the NRZ waveform signal, a gate that generates gated X-axis and Y-axis data by gating the ramp sweep signal and the NRZ waveform signal, and a display that displays the gated X-axis and Y-axis data as a circular loop image. The circular loop image generation method receives an input waveform, generates a ramp sweep signal using the input waveform, gates the ramp sweep signal and the input waveform to generate gated X-axis and Y-axis data, and displays the gated X-axis and Y-axis data as a circular loop image.

Provided are a plasma reaction device capable of cooling a reactor body and a magnetic core by circulating cooling water, and a cooling method thereof, the plasma reaction device including an annular loop space therein, and a body cooling channel therein, a magnetic core having a primary coil to generate plasma by exciting a gas in the annular loop space, a cooling block being in thermal contact with the reactor body or the magnetic core, and having a block cooling channel therein, a connecting block having a first water inlet pipe and a first water outlet pipe at a side thereof to supply cooling water at a first temperature, and having a second water inlet pipe and a second water outlet pipe at another side thereof to collect the cooling water at a second temperature higher than the first temperature, and a cooling water circulation line mounted between the connecting block, the cooling block, and the reactor body.

Device for unlocking the door (1) of a vehicle, comprising an actuating element (2) consisting of an actuating section (27) and a flexibly unwindable band section (28) which is connected to a Bowden cable (11), wherein the Bowden cable (11) and the actuating element (2) are arranged on a base plate (9) and / or a door, and the actuating element (2) is connected to a rotatably arranged loop lever (5) such that when the loop lever (5) is rotated by the actuating element (2), the Bowden cable (11) connected to the loop lever (5) is movable, characterized in that the loop lever (5) has a preferably circular loop lever section (8) on which the actuating element (2) partially rests.