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Frequency adjustable microwave device with nonvolatile property

A microwave device, non-volatile technology, applied in the parts of electromagnetic equipment, resistors controlled by magnetic field, electrical components, etc., can solve the problems of unable to save the working frequency state and inconvenient frequency adjustment

Active Publication Date: 2018-04-13
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of inconvenient frequency adjustment and inability to save the working frequency state that are currently face

Method used

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  • Frequency adjustable microwave device with nonvolatile property
  • Frequency adjustable microwave device with nonvolatile property
  • Frequency adjustable microwave device with nonvolatile property

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Embodiment Construction

[0038] The substantive features of the present invention are further described with reference to the accompanying drawings. The drawings are all schematic diagrams, and the thicknesses of the functional layers or regions involved are not actual dimensions, and the resistance and voltage values ​​in the working mode are also not actual values.

[0039] Detailed exemplary embodiments are disclosed herein, specific structural and functional details are merely representative for purposes of describing exemplary embodiments, therefore, the invention may be embodied in many alternative forms and should not be construed as It is to be construed as being limited only to the exemplary embodiments set forth herein, but to cover all changes, equivalents, and alternatives falling within the scope of the invention.

[0040] Fig. 1(c) is a schematic structural diagram of a non-volatile frequency tunable microwave device according to the present invention; it includes a core unit and periphe...

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Abstract

The invention relates to a frequency adjustable microwave device with a nonvolatile property. The core units comprise a bottom end electrode, an anti-ferromagnetic metal mixed layer, first ferromagnetic metal, an oxide, second ferromagnetic metal, first metal, a resistance random material, second metal and a top end electrode from the bottom up in nine layers in total; the microwave device also comprises a series of electronic components: a T type bias device, a pulse generator, and a direct current voltage and low noise power amplifier; and a microwave oscillation device is used for switch output signals and adjusting the microwave output frequency through a series of voltage pulses, such as V<off> and V<1>, V<2>, V<3> and the like. The microwave device can output microwave signals of different frequencies and can store frequency information, and has the nonvolatile property. Information stored in a resistance random memory unit can be transmitted in the microwave form through a STNO,and the microwave device can be used for data storage and transmission.

Description

【Technical field】 [0001] The invention relates to a nonvolatile frequency adjustable microwave device, in particular to a nonvolatile microwave signal generator with adjustable output frequency, which belongs to the field of nanometer microwave oscillators. 【Background technique】 [0002] In the magnetic tunnel junction nanostructure (free layer / isolation layer / pinning layer), when a certain amount of spin-polarized current passes through, the spin transfer torque (Spin Transfer Torque, STT) brought by it will cause the free layer The magnetic moment precesses steadily, which in turn causes a high-frequency change in resistance, converting the input DC signal into a high-frequency oscillating microwave signal. The oscillator based on this effect, that is, the spin-transfer nano-oscillator (Spin-Transfer Nano-Oscillator, STNO), can be used as a new generation of nanoscale microwave generator. Compared with the current common microwave generators, STNO has simple manufacturin...

Claims

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Application Information

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IPC IPC(8): H01L45/00H01L43/02H01L43/08
CPCH10N50/80H10N70/801H10N50/10
Inventor 赵巍胜魏家琦张雨曹凯华
Owner BEIHANG UNIV
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