Magnetic electromechanical coupling type miniaturized signal receiving antenna and manufacturing method
An electromechanical coupling and signal receiving technology, applied in the field of very low frequency communication, to achieve the effect of solving the directional reception of the magnetomechanical coupling antenna, high sensitivity, and improving sensitivity
Active Publication Date: 2022-06-21
NANJING BUWEI COMM EQUIP CO LTD
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Problems solved by technology
[0004] Therefore, it is a challenge to further improve the high sensitivity and miniaturization of the receiving antenna under the premise of ensuring the receiving performance of the antenna.
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[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0027] A magnetoelectrically coupled miniaturized signal receiving antenna, the magnetoelectrically coupled miniaturized signal receiving antenna comprises a magnetostrictive material layer 1, a piezoelectric material layer 2, a block permanent magnet 3, a gear turntable 4, a center bracket 5, base 6 and moving rack 7;
[0028] The piezoelectric material layer 2 is bonded between the magnetostrictive material layers 1 with epoxy glue to form an antenna with a ...
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A magneto-electromechanical coupling miniaturized signal receiving antenna and its realization method, comprising magnetostrictive material, piezoelectric material, block permanent magnet, gear turntable, central support, base, and moving rack. The receiving antenna of the present invention is based on the magneto-electromechanical coupling effect. When the external electromagnetic wave signal is transmitted and reaches the magneto-electromechanical coupling miniaturized signal receiving antenna, the magnetostrictive material layer will sense the change of the magnetic field, and mechanical vibration will be generated inside the material layer. This kind of vibration frequency propagates in the form of bulk acoustic wave, causing the piezoelectric material layer to vibrate mechanically, and the piezoelectric voltage at both ends of the piezoelectric material layer changes according to the piezoelectric effect, which is output through the electrodes, and the piezoelectric voltage is measured by an oscilloscope and a host computer Detection and analysis, improve the sensitivity to external electromagnetic wave reception by adjusting different receiving angles. The receiving angle of the antenna of the invention can be adjusted, solves the problem of directional reception of the magneto-electromechanical coupling antenna, and has the advantages of miniaturization, portability, high sensitivity and the like.
Description
technical field [0001] The invention belongs to the technical field of very low frequency communication, and in particular relates to a magneto-electrical coupling type miniaturized signal receiving antenna and a manufacturing method. Background technique [0002] The indicators of the "Mechanical Antenna" development project pointed out that the time-varying magnetic field strength of the antenna during steady-state operation is 1-100fT@1km, and the fT-level magnetic field strength signal is very weak, requiring a high-sensitivity magnetic sensor to receive. In the field of magnetic sensor technology, there are mainly magnetic induction coils, optical pump magnetometers, superconducting quantum interference magnetometers, etc., the resolution of which can reach the highest pT level. However, the current research on the equivalent electrical characteristic parameters of the magnetic induction coil mainly focuses on the high frequency spectrum, and has not been discussed in d...
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IPC IPC(8): H01Q1/38H01Q1/12
CPCH01Q1/38H01Q1/12
Inventor 王哓煜赵相晨张博焱曹振新
Owner NANJING BUWEI COMM EQUIP CO LTD