Magnetic Oscillator Differential Output for Variable High-Frequency Signals
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Solution Overview
Problem
Conventional oscillators generate signals with constant frequency, limiting their adaptability in wireless communication systems and requiring improvements in quality factor, output power, and phase noise, particularly in high frequency bands.
Innovation Solution
The development of oscillators with a magnetic layer having a variable magnetization direction based on applied current, voltage, or magnetic field, integrated with an output stage for differential amplification, enhancing signal-to-noise ratio and enabling operation in high frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional oscillators generate signals with constant frequency, then the oscillator structure is simple, but the adaptability in wireless communication systems is limited
Solution Approach 1:
The patent implements variable frequency capability by making the magnetization direction of the magnetic layer dynamically adjustable through applied current, voltage, or magnetic field. This allows the oscillator to adapt to different frequency requirements in wireless communication systems while maintaining a relatively compact integrated structure with the output stage.
2Reliability
If the oscillator operates in high frequency bands, then the signal-to-noise ratio improves, but the gain of output signals needs to be increased
Solution Approach 1:
The patent integrates the output stage directly on the same substrate as the oscillating unit, combining the signal generation and amplification functions in a single integrated structure. This integration reduces signal loss and improves the signal-to-noise ratio while providing sufficient output signal gain for high frequency band operations.
3Adaptability or versatility
If the magnetization direction is made variable according to applied current, voltage, or magnetic field, then the frequency adaptability increases, but the device complexity increases
Solution Approach 1:
The patent designs the magnetic layer control mechanism to respond to multiple types of input signals (current, voltage, or magnetic field), making the same structural element capable of achieving frequency variation through different control methods. This multi-functional approach enables frequency adaptability without proportionally increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution increases the gain of output signals, improves signal-to-noise ratio, and allows oscillators to operate effectively in high frequency bands, reducing measurement errors and enhancing common-mode rejection ratio.
Implementation Method 1
at least one magnetic layer having a magnetization direction that is variable according to at least one selected from the group consisting of an applied current, an applied voltage and an applied magnetic field
Implementation Method 2
The oscillating unit is configured to generate an oscillation signal having a set frequency
Implementation Method 3
an output stage that provides an output signal by differentially amplifying the oscillation signal
Data Source
AI summary
Oscillators and methods of operating the oscillators are provided, the oscillators include an oscillating unit including at least one magnetic layer having a magnetization direction that varies according to at least one selected from the group consisting of an applied current, an applied voltage and an applied magnetic field. The oscillating unit is configured to generate an oscillation signal having a set frequency. The oscillators further include an output stage that provides an output signal by differentially amplifying the oscillation signal.