Wireless Communication Device Using Waveguide and Injection Locking
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Solution Overview
Problem
Current wireless communication methods face challenges in high-speed signal transmission within electronic apparatus due to increased power consumption, signal distortion, and electromagnetic interference, particularly when using LVDS, and existing wireless solutions either require complex circuitry or suffer from frequency stability issues in the millimeter waveband.
Innovation Solution
A wireless communication system that configures a radio signal transmission path between communication units using a waveguide structure, employing amplitude modulation and injection locking methods to reduce transmission power and circuit scale, while moderating carrier frequency stability, allowing for efficient high-speed signal transmission between electronic apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If LVDS is used for high-speed signal transmission, then transmission speed is improved, but power consumption increases and signal distortion occurs
Solution Approach 1:
The patent replaces the electrical wiring system (mechanical/electrical transmission medium) with a wireless communication system using electromagnetic waves in the millimeter waveband. This substitution eliminates the need for physical wiring while achieving high-speed transmission, thereby reducing power consumption associated with driving high-speed electrical signals through wires and avoiding signal distortion caused by reflection and electromagnetic interference in wiring systems.
2Speed
If the number of wiring lines is increased for parallel transmission, then transmission speed is improved, but the number of input and output terminals increases
Solution Approach 1:
The patent replaces the multi-wire parallel transmission system with a wireless communication system. Instead of increasing the number of physical wiring lines and corresponding input/output terminals, the invention uses wireless electromagnetic wave transmission to achieve high-speed data transfer, thereby eliminating the complexity associated with multiple terminals and wiring connections.
3Volume of moving object
If a low carrier frequency is used for wireless communication, then antenna size is reduced, but transmission speed is insufficient for high-speed communication
Solution Approach 1:
The patent changes the carrier frequency parameter to the millimeter waveband (higher frequency range). This parameter change enables high-speed transmission capability while the antenna size is kept manageable through optimized design. The higher frequency allows for greater bandwidth and thus higher transmission speeds, while the antenna dimensions are controlled to be practical for integration within electronic apparatus.
4Volume of moving object
If a low carrier frequency is used for wireless communication, then antenna size is reduced, but interference with baseband signals occurs
Solution Approach 1:
The patent changes the carrier frequency parameter to the millimeter waveband, which is significantly higher than baseband signal frequencies. This frequency separation creates a clear distinction between the wireless communication signals and baseband signals, thereby eliminating interference issues while maintaining practical antenna dimensions suitable for integration within electronic apparatus.
5Reliability
If high frequency stability is demanded for millimeter wave communication, then circuit configuration becomes complicated
Solution Approach 1:
The patent applies partial frequency stability control by using an oscillation circuit with moderate stability requirements rather than demanding extremely high stability. The invention recognizes that for short-range communication within electronic apparatus, moderate frequency stability is sufficient, thereby avoiding the need for complicated frequency control circuits while still achieving reliable communication.
6Volume of moving object
If millimeter waveband is used for wireless communication, then antenna size is reduced and interference is eliminated, but frequency stability becomes difficult to maintain
Solution Approach 1:
The patent changes the operational parameters by using the millimeter waveband frequency range, which inherently allows for smaller antenna sizes due to the shorter wavelength. The invention accepts moderate frequency stability requirements for this frequency band, recognizing that the benefits of compact antenna design and elimination of interference outweigh the challenges of maintaining extremely high frequency stability, particularly for short-range communication applications.
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 system achieves reduced transmission power and circuit scale, enabling reliable high-speed signal transmission with simplified system configuration and reduced electromagnetic interference, while maintaining adequate frequency stability for millimeter wave communication.
Implementation Method 1
A radio signal transmission path which allows wireless information transmission therein is configured between the communication unit on the transmission side and the communication unit on the reception side
Implementation Method 2
employing amplitude modulation and injection locking methods to reduce transmission power and circuit scale
Implementation Method 3
employing amplitude modulation and injection locking methods to reduce transmission power and circuit scale
Data Source
AI summary
Disclosed herein is a wireless communication device, including: a plurality of communication units for transmission adapted to modulate and transmit a transmission subject signal; the communication units for transmission including a communication unit or units for transmission which adopt a method which modulates the amplitude and a communication unit or units for transmission which adopt a modulation method which modulates at least the phase or the frequency and requires transmission power lower than that of the method which modulates the amplitude.