Window Glass Antenna Unit With Removable Reflector for EM Exposure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need to reduce the exposure of individuals, such as window washers, to electromagnetic waves radiated from antenna units installed on building exteriors, as excessive exposure is undesirable.
Innovation Solution
An antenna unit equipped with a radiating element and a reflective member that can be supported by a removable support unit to temporarily block electromagnetic waves from being radiated outward, allowing for reduced exposure during specific situations like window cleaning, while enabling regular operation by removing the blocking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna unit continuously radiates electromagnetic waves for normal operation, then communication functionality is maintained, but exposure to individuals outside the building increases
Solution Approach 1:
The reflective member is designed to be movable between a first position (blocking electromagnetic waves) and a second position (allowing radiation). This dynamic repositioning enables the antenna unit to adapt its electromagnetic wave radiation pattern based on operational requirements, reducing exposure to individuals outside during non-critical periods while maintaining full functionality during normal operation
Solution Approach 2:
The reflective member can be periodically repositioned to block electromagnetic waves during specific time periods when communication activity is reduced or during maintenance operations. This periodic blocking action reduces cumulative exposure to individuals outside the building while ensuring communication functionality is maintained during essential operational periods
2Object-affected harmful factors
If a reflective member is permanently installed to block electromagnetic waves, then exposure reduction is achieved, but communication functionality is compromised
Solution Approach 1:
The reflective member is configured to be movable rather than permanently fixed, allowing it to be repositioned between a first position (blocking electromagnetic waves toward the outside) and a second position (allowing normal radiation). This dynamic capability ensures that communication functionality is maintained when needed while enabling exposure reduction when appropriate
Solution Approach 2:
The reflective member acts as an intermediary element between the antenna unit and the external environment. By positioning this intermediary at specific locations and angles, electromagnetic waves can be redirected away from individuals outside the building during non-critical periods, while the same intermediary can be repositioned to allow normal communication operations
3Adaptability or versatility
If the reflective member is made removable and repositionable, then flexibility for exposure reduction is improved, but device complexity increases
Solution Approach 1:
The antenna unit is segmented into distinct functional components: the radiating element, the support unit, and the movable reflective member. This segmentation allows the reflective member to be independently repositioned and removed without affecting the core antenna functionality, providing flexibility for exposure control while keeping each component relatively simple in design
Solution Approach 2:
The support unit incorporates movable and removable features that enable the reflective member to be dynamically repositioned between different positions. This dynamic design provides adaptability for exposure control during maintenance or special periods while maintaining a relatively simple overall structure that does not require complex mechanical systems
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 effectively reduces electromagnetic wave exposure to individuals outside the building during non-operational periods, such as window washing, while maintaining functionality during regular operations by allowing the antenna unit to radiate waves when necessary.
Implementation Method 1
a reflective member configured to reflect electromagnetic waves radiated from the radiating element toward outside of the building
Data Source
AI summary
An antenna unit to be used by being installed so as to face window glass of a building, the antenna unit including a radiating element, a reflective member configured to reflect electromagnetic waves radiated from the radiating element toward outside of the building, and a support unit configured to removably support the reflective member. An antenna unit attachment method includes installing an antenna unit so as to face window glass for a building, the antenna unit having a radiating element and a support unit, and supporting a reflective member that reflects electromagnetic waves radiated from the radiating element by the support unit on an outdoor side relative to the radiating element.