EHF Wireless PCB Connectivity via Dielectric Antennas
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Solution Overview
Problem
Conventional connector and backplane architectures in electronic systems introduce impedance discontinuities, degrading signal quality and requiring expensive electronics to negotiate, while mechanical connectors are prone to wear, alignment issues, and mechanical jostling.
Innovation Solution
The use of EHF communication units with dielectric material encapsulating antennas to transmit and receive electromagnetic radiation with different polarization characteristics, allowing for wireless communication between IC packages without physical connections, enabling high-bandwidth connectivity and data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanical connectors and backplane architectures are used to connect PCBs, then electrical connection between boards is achieved, but impedance discontinuities occur degrading signal quality
Solution Approach 1:
The patent replaces mechanical connectors with electromagnetic field-based wireless communication. EHF communication units with antennas transmit and receive signals through electromagnetic radiation, eliminating physical contact points that cause impedance discontinuities. The dielectric material encapsulating the antennas enables wireless signal transmission between IC packages on different PCBs without mechanical interfaces.
Solution Approach 2:
The patent introduces dielectric material as an intermediary between transmitting and receiving antennas. This dielectric encapsulation enables electromagnetic coupling between antennas while maintaining signal integrity, serving as a non-intrusive medium that facilitates wireless communication without the impedance disruptions caused by mechanical connectors.
2Reliability
If conventional mechanical connectors are used for PCB connection, then electrical connectivity is established, but the connectors wear out over time and require precise alignment
Solution Approach 1:
The patent eliminates mechanical connectors entirely by using wireless EHF communication between antennas. This substitution removes wear-related failures and eliminates the need for precise mechanical alignment during operation, as electromagnetic fields can tolerate greater positional variations compared to physical contact interfaces.
Solution Approach 2:
The patent transitions from two-dimensional planar connector interfaces to three-dimensional electromagnetic field interaction. The dielectric-encapsulated antennas radiate electromagnetic energy in multiple dimensions, enabling communication without requiring precise lateral alignment as conventional mechanical connectors do.
3Reliability
If conventional mechanical connectors are used for board connection, then signal transmission is achieved, but the connectors are susceptible to mechanical jostling
Solution Approach 1:
The patent replaces mechanical signal transmission through connectors with wireless electromagnetic communication. By eliminating physical contact interfaces, the system becomes immune to mechanical jostling, vibration, and shock that degrade conventional connector reliability in mobile and portable applications.
4Productivity
If EHF communication units with dielectric encapsulated antennas are used for wireless communication between IC packages, then high-bandwidth connectivity is achieved, but the complexity of the communication unit increases
Solution Approach 1:
The patent combines the antenna, dielectric encapsulation, and EHF communication circuitry into a single integrated communication unit. This merging of components achieves high-bandwidth wireless connectivity while consolidating what would otherwise be separate complex elements into a unified module that can be implemented on standard PCBs.
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 solution provides reliable, high-bandwidth communication with improved signal integrity and manufacturability, eliminating the need for mechanical connectors and allowing for scalable, rugged, and portable devices with relaxed alignment tolerances.
Implementation Method 1
The first and second antennas may transmit or receive electromagnetic radiation having different respective polarization characteristics
Implementation Method 2
Dielectric material may encapsulate and hold in relative spaced relationship the first antenna, the second antenna, and the die
Data Source
AI summary
A scalable, high-bandwidth connectivity architecture for portable storage devices and memory modules may utilize EHF communication link chip packages mounted in various two-dimensional and three-dimensional configurations on planar surfaces such as printed circuit boards. Multiple electromagnetic communication links between devices distributed on major faces of card-like devices may be provided with respectively aligned pairs of communication units on each device. Adjacent communication units on a printed circuit board may transmit or receive electromagnetic radiation having different polarization, such as linear or elliptical polarization. Power and communication between communication devices may both be provided wirelessly.