Method for converting microwave signals into direct-current electric signals by aid of spin wave propagation
A microwave signal and spin wave technology, applied in logic circuits using basic logic circuit components, logic circuits using specific components, electrical components, etc., can solve the increase in Joule heat loss, negative effects on device stability, and increased energy consumption and other problems to achieve the effect of reducing the difficulty, simplifying the method, and avoiding secondary heat dissipation
Inactive Publication Date: 2014-12-17
BEIHANG UNIV
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With the continuous miniaturization of the size of electronic devices, the Joule heat loss generated by the internal current of the device increases exponentially, which not only increases the energy consumption, but also has a negative impact on the stability of the device
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[0026] The planar waveguide structure used in traditional microwave excitation, such as Figure 1-6 As shown, among them, figure 1 The black M-shaped part is a planar waveguide that converts microwaves into spin waves, and the top is shorted. The middle is the signal line, and the two sides are ground wires, which are generally realized by connecting the microwave probe and the microwave transmission line to the microwave signal generator. Oscillating microwaves generate propagable spin waves in the spin wave transmission medium. The frequency of the spin wave is generally in the range of 1-20 GHz, and there will be corresponding changes according to different propagation media.
[0027] The spin wave interferometer is used as the carrier of logic operations, such as figure 2 As shown, the left side is the input terminal of the logic operation, which is composed of two spin wave excitation sources with the same frequency. The phases 0 and π of the spin wave represent 0 an...
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The invention discloses a method for converting microwave signals into direct-current electric signals by the aid of spin wave propagation. The method includes steps of firstly, generating the microwave signals by the aid of microwave signal generators, and generating spin waves by the aid of planar waveguides by means of excitation; secondly, propagating the spin waves inside yttrium iron garnet YIG in a low-loss manner at high speeds; thirdly, enabling the spin waves to generate 'constructive interference' and 'destructive interference' via spin wave interference devices; fourthly, converting spin wave signals into direct-current readable voltage signals by the aid of spin wave Hall effects. The method has the advantages that the spin waves can be detected by the aid of the simple direct-current voltage signals, logic information of '1' and '0' is read and represented by high voltages and low voltages after the logic information is logically computed, and the spin waves are used as carriers of the logic information; a mode for detecting the spin waves is greatly simplified by the method as compared with the traditional means for detecting spin waves by the aid of microwaves, accordingly, the difficulty in detecting spin wave logic computation results can be lowered, and secondary heat dissipation can be prevented.
Description
【Technical field】 [0001] The invention relates to a novel logic device based on spin waves, in particular to a method for directly reading operation results by using a DC voltage in a device using spin wave interference of magnetic materials for logic operations. The invention is also applicable to the voltage readout operation of any spin wave based holographic memory or image processing function. The invention belongs to the technical field of novel logic devices in computer logic operation systems. 【Background technique】 [0002] Spin-wave logic device is a new type of electronic device that uses spin wave as an information carrier. With the continuous miniaturization of the size of electronic devices, the Joule heat loss generated by the internal current of the device increases exponentially, which not only increases the energy consumption, but also has a negative impact on the stability of the device. Logic devices based on spin waves use the 0 and π phase information...
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Inventor于海明郭玮赵巍胜张学莹
OwnerBEIHANG UNIV