Embedded PCB Antenna Layout to Eliminate External Antenna Assembly
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Solution Overview
Problem
Existing antenna solutions for communication devices require external components, increasing cost, assembly time, and mechanical issues, while exposing the antenna to environmental factors that affect performance.
Innovation Solution
Embedding antenna elements within the PCB to protect them from environmental factors, eliminating the need for external connectors and simplifying mechanical implementation, using a multilayered PCB with integrated antenna elements and stripline connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external antenna is implemented, then the antenna can function properly, but the cost increases and assembly time increases
Solution Approach 1:
The antenna element is merged with the PCB structure by embedding it within the PCB layers. The antenna conductor is formed as part of the PCB trace structure, eliminating the need for separate external antenna components and reducing assembly steps.
Solution Approach 2:
The PCB serves multiple functions: it provides structural support, electrical connections, and houses the antenna element within its layers. This multi-functionality eliminates the need for dedicated external antenna components and simplifies the overall device structure.
2Reliability
If an external antenna is implemented, then the antenna can transmit and receive signals, but the cost increases
Solution Approach 1:
The antenna element is combined with the PCB manufacturing process. The antenna conductor is created using the same PCB trace formation techniques (copper deposition, etching) as the rest of the circuit board, eliminating the need for separate antenna component procurement and assembly.
Solution Approach 2:
The PCB structure is designed to serve both as the circuit board and as the antenna housing. The PCB materials and construction methods are utilized for both structural and radiating functions, reducing the need for additional specialized components.
3Reliability
If an external antenna is implemented, then the antenna can operate, but mechanical issues such as IP-classification and through hole mounting arise
Solution Approach 1:
The antenna element is embedded within the PCB layers, merging the antenna structure with the board itself. This eliminates through-hole mounting requirements and external connectors, simplifying the mechanical design and improving IP classification by reducing potential entry points for moisture and contaminants.
4Reliability
If the antenna is exposed to the surrounding environment, then the antenna can function properly, but the antenna is affected by environmental factors such as wind, moisture and snow
Solution Approach 1:
The antenna element is nested within the PCB structure, which acts as a protective enclosure. The PCB layers surrounding the antenna element provide shielding from environmental factors such as moisture, wind, and snow, while still allowing RF signals to pass through.
Solution Approach 2:
The PCB itself acts as a protective shell around the antenna element. The PCB material provides a barrier against environmental factors while maintaining RF transparency, effectively protecting the antenna without requiring additional encapsulation layers.
Data Source
AI summary
The present invention relates to a printed circuit board, PCB, with at least one integrated antenna element configured to transmit and/or receive radio frequency, RF, signals. Each of the at least one antenna element is configured to be connected to RF circuitry, and the at least one antenna element is embedded in the PCB. The present invention also relates to an antenna arrangement and a communication device for wireless communication comprising a PCB with at least one embedded antenna element.