Multi-Layer Antenna Module for Dual-Stream Wireless Display Links
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Solution Overview
Problem
Existing wireless display systems face issues with reduced image quality due to the need for increased data compression when the A/V transmitting device is positioned such that one of the pair of antenna modules is blocked by an IR module, leading to suboptimal A/V wireless communication.
Innovation Solution
An antenna module implemented in a multi-layered substrate with a coplanar waveguide structure and array antennas, including RFIC, dielectric layers, and coplanar waveguide layers, allows for optimized A/V wireless communication by considering the location and polarization characteristics of the A/V transmitting device, enabling seamless communication even with obstacles and providing wider beam coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the A/V transmitting device is positioned such that one antenna module is blocked by the IR module, then the device placement flexibility is improved, but the data transmission reliability deteriorates due to reduced to two-stream method
Solution Approach 1:
The patent transitions from a planar two-dimensional antenna arrangement to a three-dimensional stacked configuration. The first and second antenna modules are positioned on opposite surfaces of the substrate, utilizing the vertical dimension to achieve spatial diversity. This allows both antenna modules to maintain unobstructed communication paths regardless of the transmitting device's position, enabling reliable two-stream transmission while preserving placement flexibility.
2Reliability
If data compression rate is increased to maintain transmission quality in one-stream mode, then the data transmission quality is preserved, but the image quality deteriorates
Solution Approach 1:
The patent divides the data transmission into two parallel streams, with each antenna module transmitting a separate stream simultaneously. This segmentation allows the system to maintain lower compression rates for each individual stream while achieving the same overall data throughput, thereby preserving image quality. The dual-stream approach eliminates the need to increase compression ratios that would otherwise be required in single-stream mode.
3Device complexity
If a single antenna module is used due to IR module blocking, then the device structure is simplified, but the wireless communication performance deteriorates
Solution Approach 1:
The patent embeds multiple antenna modules within a single integrated antenna package structure. The first and second antenna modules are stacked on opposite surfaces of the substrate, forming a compact nested configuration. This nested design enables the system to incorporate multiple high-performance antenna elements without significantly increasing the overall device footprint or structural complexity, thereby maintaining both simplicity and 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
The solution ensures high data reception rates and reduced mutual interference, maintaining image quality by allowing two-stream data transmission and enabling communication over longer distances and wider beam coverage, even when obstacles are present.
Implementation Method 1
a first coplanar waveguide layer disposed on a top of the first dielectric layer and configured to receive RF signals transmitted by an interface layer of the RFIC
Implementation Method 2
a first antenna portion disposed on the first coplanar waveguide layer and configured to radiate signals transmitted from the first coplanar waveguide layer
Data Source
AI summary
An antenna module implemented in a multi-layered antenna package includes an RFIC; a first dielectric layer; a first coplanar waveguide layer disposed on a top of the first dielectric layer and configured to receive RF signals transmitted by an interface layer of the RFIC; a first antenna portion disposed on the first coplanar waveguide layer and configured to radiate signals transmitted from the first coplanar waveguide layer; a second coplanar waveguide layer disposed on a top of the third dielectric layer and configured to receive RF signals transmitted by the interface layer of the RFIC; and a second antenna portion disposed on the second coplanar waveguide layer to radiate signals transmitted from the second coplanar waveguide layer.