Millimeter Wave Transmission via High-Loss Dielectric Circuit Board
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Solution Overview
Problem
Existing millimeter wave transmission systems face challenges in transmitting signals without interference within electronic apparatuses, particularly due to the difficulty in reducing interference and achieving high-speed communication using conventional dielectric waveguide lines and wireless communication systems.
Innovation Solution
A millimeter wave transmission device and method utilizing a circuit board with a dielectric material as a transmission path, where a first signal generation unit converts input signals to millimeter waves and a second unit demodulates received waves, with antenna coupling units ensuring signal transmission and reception, utilizing a dielectric material with high loss tangents to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional dielectric waveguide line is used for millimeter wave transmission, then signal transmission is achieved, but interference with other components and reflected waves cannot be sufficiently reduced
Solution Approach 1:
The patent changes the dielectric constant parameter of the waveguide body to a specific range (2.0 ≤ dielectric constant ≤ 4.0) to optimize the balance between signal transmission quality and interference reduction. This parameter optimization allows the waveguide to maintain reliable signal transmission while minimizing interference with other components in the electronic apparatus.
Solution Approach 2:
The patent applies different dielectric materials with specific properties to different regions of the waveguide structure. The waveguide body uses a dielectric material with controlled dielectric constant, while the covering layer uses a different dielectric material, creating local quality variations that reduce reflected waves and improve overall transmission reliability.
2Speed
If high-speed millimeter wave communication is implemented, then transmission speed is improved, but interference and signal stability deteriorate
Solution Approach 1:
The patent introduces a covering layer as an intermediary between the waveguide body and the external environment. This covering layer acts as a mediator that reduces interference from external components while allowing the high-speed millimeter wave signal to pass through, thus maintaining transmission speed while reducing harmful interference.
Solution Approach 2:
The waveguide structure employs composite materials consisting of the waveguide body with specific dielectric constant and the covering layer with different dielectric properties. This composite structure enables high-speed signal transmission while the combination of materials works together to minimize interference and maintain signal stability.
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 enables efficient, high-speed signal transmission in the millimeter wave band with reduced interference, as the high-loss dielectric material attenuates reflected waves and minimizes interference with other components, allowing for reliable communication within electronic apparatuses.
Implementation Method 1
utilizing a dielectric material with high loss tangents to minimize interference
Implementation Method 2
a first signal generation unit for generating a millimeter wave signal upon performing frequency conversion on an input signal to be transmitted
Implementation Method 3
a second signal generation unit for demodulating the received millimeter wave signal and generating an output signal corresponding to the input signal to be transmitted
Implementation Method 4
at least one of the main conductor layers is formed with slot holes for electromagnetically coupling with a high frequency transmission line
Data Source
AI summary
The device includes: a signal generating unit generating a millimeter wave signal by signal processing of an input signal; a coupling circuit transmitting an electromagnetic wave from the millimeter wave signal generated by the signal generating unit to one end of a circuit board; a coupling circuit receiving the electromagnetic wave from the millimeter wave signal from the other end of the circuit board; and a signal generating unit that generates an output signal by signal processing of the millimeter wave signal from the electromagnetic wave received by the coupling circuit. Preferably, the circuit board is constituted by a dielectric material whose the dielectric loss tangent is relatively large, and a transmission line functioning as a millimeter wave transmission path is constituted within this circuit board. With this construction, extremely high-speed signals can be transmitted through a circuit board having a prescribed dielectric constant representing a large loss.