Orthogonal Feed Patch Antenna for Streaming Media Interference
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Solution Overview
Problem
In electronic devices like streaming media players, the co-location of video processing components and wireless communication systems leads to electromagnetic interference, as video and audio signals generate noise that can disrupt wireless communications, especially in high-frequency bands like 2.4 GHz and 5 GHz, causing performance issues and interference with nearby wireless communication systems.
Innovation Solution
The implementation of high-dielectric patch antennas with orthogonal feeds and a ground isolation region on the substrate minimizes interference by reducing noise sensitivity and transmission towards video processing components, while also incorporating a smart filter circuit to filter out interfering frequencies during low-resolution video processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If video and audio signals are transmitted through physical connectors at high frequencies, then data transmission capability is improved, but electromagnetic noise generation increases and interferes with wireless communication systems
Solution Approach 1:
The patent extracts the harmful electromagnetic noise generated by video processing components through the use of patch antennas with orthogonal feeds. The antenna structure specifically targets and extracts noise in the 2.4 GHz and 5 GHz frequency ranges, separating it from the main wireless communication signals to prevent interference
Solution Approach 2:
The patch antenna structure acts as an intermediary element between the noisy video processing components and the wireless communication system. It provides a controlled interface that allows noise to be captured and managed separately, preventing direct interference with wireless communications while maintaining high-speed video transmission capability
2Volume of moving object
If video processing components and wireless communication systems are co-located in the same device, then device compactness is improved, but electromagnetic interference between components increases
Solution Approach 1:
The patent applies local quality by implementing directional noise suppression specifically targeted at the video processing components. The patch antenna with orthogonal feeds creates localized electromagnetic fields that selectively suppress noise in specific spatial directions where video processing components are located, while maintaining omnidirectional wireless communication capability in other directions
Solution Approach 2:
The patent implements preliminary anti-action by proactively suppressing electromagnetic noise from video processing components before it can interfere with wireless communication systems. The orthogonal feed structure pre-establishes electromagnetic cancellation patterns that prevent noise from propagating to sensitive wireless communication receivers, rather than attempting to filter or correct interference after it occurs
3Reliability
If patch antennas with orthogonal feeds are used to suppress noise, then wireless communication performance is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into a single patch antenna structure with orthogonal feeds. The same antenna simultaneously performs wireless signal transmission/reception and noise suppression from video processing components. This integration eliminates the need for separate noise cancellation components, reducing overall device complexity while maintaining improved wireless communication performance
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
This configuration reduces electromagnetic interference between video processing and wireless communication components, enhancing the performance of wireless communications by minimizing noise absorption and transmission, and selectively filtering out interfering frequencies during low-resolution video processing.
Implementation Method 1
The antenna elements are configured to transmit and receive radio waves at frequencies in the 2.4 GHz and 5 GHz bands
Implementation Method 2
high-dielectric patch antennas with orthogonal feeds and a ground isolation region on the substrate minimizes interference by reducing noise sensitivity
Implementation Method 3
incorporating a smart filter circuit to filter out interfering frequencies during low-resolution video processing
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A streaming media player includes a printed circuit board, a video processor, a wireless communications processor, and a patch antenna. The patch antenna includes dielectric material, a conductive patch, and a first antenna feed in a first position with respect to the conductive patch. The patch antenna includes a second antenna feed in a second position with respect to the conductive patch. The first position is orthogonal to the second position. In an embodiment, the second position is rotationally offset from the first position by 90 degrees around an axis through a center of the conductive patch. The streaming media player includes a connector coupled to the video processor and configured to removably couple to a connection port on a display device.