Optical Module Reflector for Electromagnetic Wave Attenuation
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Solution Overview
Problem
Optical modules in fiber communication systems generate electromagnetic waves that leak and cause interference to surrounding electronic devices, affecting the normal operation of components and increasing radiation.
Innovation Solution
Incorporating a reflector between the circuit board and housing within the optical module to reflect and attenuate electromagnetic waves, reducing interference by absorbing part of the energy through multiple reflections and strategic placement to minimize space and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a reflector is added to reduce electromagnetic wave radiation, then interference to surrounding devices is reduced, but device complexity increases
Solution Approach 1:
The patent converts the harmful electromagnetic waves into beneficial effects by using a reflector to redirect these waves toward the housing. The reflector transforms the radiation problem into an energy utilization opportunity, where the reflected waves are absorbed by the housing material, converting potential interference into heat absorption, thereby reducing harmful radiation while utilizing the energy.
Solution Approach 2:
The reflector acts as an intermediary element between the circuit board and the housing. It mediates the interaction between electromagnetic waves and the housing by first reflecting the waves onto the housing surface, enabling the housing to absorb the energy that would otherwise radiate outward. This intermediary approach allows the system to control and redirect electromagnetic energy without directly blocking it.
2Object-affected harmful factors
If a reflector is added to attenuate electromagnetic waves, then interference is reduced, but the space occupied by the optical module increases
Solution Approach 1:
The patent applies local quality by placing the reflector specifically at the circuit board-housing interface where electromagnetic wave radiation occurs. Rather than covering the entire optical module, the reflector is locally positioned only where needed to intercept and redirect waves, minimizing the additional space required while maintaining effective attenuation of harmful radiation.
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
Effectively reduces electromagnetic wave radiation and interference, ensuring the normal operation of components and minimizing the impact on surrounding electronic devices while optimizing the reflector's design for efficient energy absorption and reduced space occupation.
Implementation Method 1
a reflector, which is located between the connecting finger and an optical port of the optical module and can reflect electromagnetic waves radiated onto a surface of the reflector
Data Source
AI summary
An optical module includes a housing, a circuit board, a connecting finger and a reflector. The circuit board is provided inside the housing. The connecting finger is provided on the circuit board. The reflector is provided between the circuit board and the housing, and is located between the connecting finger and an optical port of the optical module. The reflector is configured to reflect electromagnetic waves radiated onto a surface of the reflector.