Polymeric Radome Encasing PCB Antenna for Industrial Wireless Reliability
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Solution Overview
Problem
Field devices in industrial settings face communication disruptions due to fragile antennas and environmental degradation, which can compromise wireless radio-frequency communication in harsh conditions.
Innovation Solution
A wireless field device with a robust polymeric radome encasing a printed circuit board antenna, providing an interference fit and enhanced durability, along with a power module, processor, and communication module for reliable radio-frequency communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional antenna is used in wireless field devices, then wireless communication is enabled, but the antenna is fragile and vulnerable to environmental degradation
Solution Approach 1:
The patent applies this principle by using a radome (a protective shell) to encase the antenna. The radome protects the fragile antenna from environmental stressors such as UV exposure, moisture, and physical damage while allowing radio frequency signals to pass through. This resolves the contradiction by providing structural protection without compromising wireless communication functionality.
Solution Approach 2:
The patent employs composite materials by combining the antenna (typically metal or conductive material) with a protective radome made of durable, environmentally resistant materials. This composite structure integrates the functional antenna element with the protective enclosure, simultaneously achieving wireless communication capability and environmental durability.
2Object-affected harmful factors
If the antenna seal to the housing is damaged by UV exposure or hydrolytic degradation, then environmental seal fails, but this causes damage to the device
Solution Approach 1:
The patent applies this principle by incorporating a radome that serves as a protective barrier before environmental factors can reach and degrade the antenna seal or housing. The radome is specifically designed to resist UV exposure and hydrolytic degradation, providing beforehand protection that prevents seal failure and maintains device reliability in harsh industrial environments.
Solution Approach 2:
The radome creates a protected, inert environment around the antenna and internal components, shielding them from harmful environmental factors such as UV radiation, moisture, and chemical exposure. This inert protective layer prevents the harmful degradation processes that would otherwise compromise the seal and device reliability.
3Ease of operation
If wireless mesh networking is used for communication, then wiring is simplified, but communication range and robustness are limited
Solution Approach 1:
The patent applies this principle by optimizing the antenna design and protective enclosure to enhance radio frequency signal transmission and reception characteristics. By carefully selecting materials with appropriate dielectric properties and designing the radome geometry to minimize signal interference, the system extends effective communication range and improves robustness while maintaining the wireless mesh networking advantage of simplified installation.
Data Source
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AI summary
A wireless field device (100) is disclosed. The wireless field device includes an enclosure (102) having a processor (110) disposed within the enclosure (102). A power module (112) may also be located inside the enclosure (102) and be coupled to the processor (110). A wireless communication module (104) is operably coupled to the processor (110) and is configured to communicate using radio- frequency signals. An antenna (106, 202) is coupled to the wireless communication module (104). A radome (116) mounted to the enclosure (102) is formed of a polymeric material. The radome (116) has a chamber (124) inside that contains the antenna (106, 202).