USB Connector Antenna Function via Pin Segmentation and Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Antenna circuits connected to USB connectors can experience performance degradation due to electromagnetic interference (EMI) from signals other than broadcast signals, which reduces the effectiveness of the antenna line.
Innovation Solution
An electronic device with a USB C-TYPE connector, a first interface module for processing voice or DP protocol-based signals, a second interface module for processing broadcast signals, and a switch between them, controlled by a processor to adaptively connect the interface modules based on the external device's support for antenna functions, ensuring the broadcast signal is received through the appropriate interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a USB connector is used to connect antenna circuit and external device, then ease of connection and versatility are improved, but electromagnetic interference from other signals degrades antenna performance
Solution Approach 1:
The USB connector pins are segmented into different functional groups: pins dedicated to broadcast signal reception (antenna function) and pins for other data/power functions. This segmentation allows the antenna circuit to use specific pins exclusively for broadcast signals, isolating it from electromagnetic interference caused by other signals transmitted through the same USB connector.
Solution Approach 2:
The antenna function is extracted from the general USB connector functionality by allocating specific pins exclusively for broadcast signal reception. This extraction separates the sensitive antenna circuit from the noisy general-purpose USB signal paths, maintaining antenna performance while preserving USB connector versatility.
2Adaptability or versatility
If multiple signals are transmitted through the same USB connector, then communication versatility is improved, but noise components increase and reduce antenna line performance
Solution Approach 1:
Different pins within the USB connector are assigned different functional qualities: some pins are optimized for high-frequency broadcast signals with proper impedance matching and shielding, while other pins handle data and power functions. This local quality differentiation ensures that broadcast signal pins are less susceptible to electromagnetic interference from other signal paths.
Solution Approach 2:
A switching unit acts as an intermediary between the USB connector pins and the antenna circuit. The switch selectively connects specific pins to the antenna circuit based on the type of external device connected, ensuring that only pins suitable for broadcast signal reception are activated, thereby filtering out electromagnetic interference from inappropriate signal paths.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is an electronic device. Other various embodiments as understood from the specification are also possible. The electronic device may include a connector electrically connected to an external device and including a first pin and a second pin and a cable including a plurality of lines. The cable may include an antenna line for receiving a broadcast signal among the plurality of lines, and the antenna line may be configured to be allocated to one pin among the first pin or the second pin.