Controllable broadband magnetic wave beam forming device and method

Abstract

The invention discloses a controllable broadband magnetic wave beam forming device and method based on double helix coil unit sheets. The device is formed by superposition of a plurality of double helix coil unit sheets, wherein each double helix coil unit sheet is a dual-layer circuit board of which the front surface and the reverse surface are respectively provided with helix coils; an inner hole is formed in the center of each board; the helix coils on two surfaces of each unit sheet are communicated with each other at the inner end; the circulation directions are consistent; the parameters, such as the coil shapes, the number of turns, the pitches of turns and the line widths, of the double helix coil unit sheets are accurate and adjustable; the production process consistence is good; miniaturization and integration are easily achieved; the controllable broadband magnetic wave beam forming device is combined by a plurality of helix coil units with different sizes, so that the serial and parallel connection modes between the units can be set through a numerical control circuit; the electrical parameters, such as resistance and electrical induction, of the device are adjusted, and further the resonant frequency and the bandwidth of a system can be adjusted; a magnetic wave main lobe can be adjusted through arrangement of the inner hole of each helix coil unit in a combination; a magnetic wave minor lobe can be adjusted through setting the envelope shape of the overall unit combination; adjustment on the device power and the magnetic wave transmission distance can be achieved through setting the quantity and the sizes of the unit sheets of the overall combination device.

Description

technical field [0001] The invention belongs to the technical field of wireless detection and wireless energy transmission, in particular to a controllable broadband magnetic wave beam forming device and method. Background technique [0002] In the field of magnetic-based wireless detection or wireless energy technology, the conversion of electrical signals and magnetic signals, or electrical energy and magnetic energy is an important link. The electromagnetic induction coil is the main device to complete this part of the function. Most of the traditional induction coils are wires wound manually or mechanically to form a planar helical coil or a three-dimensional helical tube. The consistency and controllability of the manufacturing process of this kind of wound coil is not high, and the precise control of the number of turns, turn pitch, and line width of the coil is difficult to achieve. Moreover, the wound coil sometimes has stress rebound, resulting in a deviation betw...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies of existing magnetic wave transceiver devices such as induction coils, such as low manufacturing precision, fixed structure, difficult adjustment of electrical parameters, scattered magnetic field distribution, etc., and propose a controllable broadband magnetic wave beamforming device and method

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