Pluggable MM-wave Module for RSA Server Interconnects
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Solution Overview
Problem
Current interconnect solutions for rack scale architecture (RSA) servers and high-performance computers (HPCs) face challenges in achieving adequate data rates, minimizing power consumption, and reducing latency and cost, particularly for short to medium distances, where traditional electrical and optical connections are either power-hungry or latency-prone.
Innovation Solution
The implementation of millimeter-wave waveguide interconnects with a pluggable architecture, utilizing a dielectric waveguide bundle and an integrated mm-wave engine, which provides low power, low latency, and high-speed data transmission without the need for error correction, and can be used interchangeably with existing interconnect technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electrical connections are used for short to medium distance interconnects, then data transmission is achieved, but power consumption increases and latency increases due to error correction requirements
Solution Approach 1:
The patent replaces traditional electrical cable connections with a waveguide-based electromagnetic wave transmission system. This substitution eliminates the need for error correction mechanisms required in electrical connections, thereby reducing power consumption while maintaining reliable data transmission over short to medium distances
Solution Approach 2:
The patent changes the transmission medium from electrical cables to waveguides, and changes the signal transmission method from electrical signals to electromagnetic waves in the millimeter-wave frequency range. This parameter change enables direct transmission without error correction, reducing power consumption
2Speed
If optical fiber interconnects are used for short to medium distances, then high bandwidth and long reach are achieved, but power consumption and cost increase significantly
Solution Approach 1:
The patent applies waveguide technology specifically for short to medium distance interconnects where it provides optimal performance. Instead of using optical fiber universally, the solution matches the transmission medium to the specific distance requirement, using waveguides for short to medium distances to avoid the excessive power consumption and cost of optical fiber in these scenarios
Solution Approach 2:
The patent substitutes optical fiber with waveguide technology for short to medium distance applications. This replacement maintains high bandwidth and speed while significantly reducing power consumption and cost, as waveguides do not require the complex optical transmitters and receivers that optical fiber systems need
3Speed
If cable length is extended or bandwidth is increased in traditional electrical connections, then performance requirements are met, but higher quality cables are required and additional power is consumed
Solution Approach 1:
The patent replaces traditional electrical cable systems with waveguide-based electromagnetic transmission. This substitution eliminates the need for progressively higher quality cables as distance or bandwidth requirements increase, since waveguides inherently support millimeter-wave frequencies and high bandwidth without the signal degradation issues that plague electrical cables
4Reliability
If error correction techniques are applied to electrical connections, then data accuracy is improved, but system latency increases substantially
Solution Approach 1:
The patent replaces electrical connection systems with waveguide-based electromagnetic transmission. This substitution eliminates the need for error correction techniques because waveguides provide inherently reliable transmission for short to medium distances, thereby reducing system latency substantially while maintaining data accuracy
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 offers a low-cost, low-latency, high-speed interconnect option for short to medium distances, reducing power consumption and latency compared to optical fiber, while allowing for flexibility and compatibility with existing systems through a 'plug and play' design.
Implementation Method 1
a dielectric waveguide... a first connector coupled to a first end of the dielectric waveguide, wherein the first connector comprises a first mm-wave engine
Data Source
AI summary
Embodiments of the invention include an active mm-wave interconnect. In an embodiment, the active mm-wave interconnect includes a dielectric waveguide that is coupled to a first connector and a second connector. According to an embodiment, each of the first and second connectors may include a mm-wave engine. In an embodiment, the mm-wave engines may include a power management die, a modulator die, a demodulator die, a mm-wave transmitter die, and a mm-wave receiver die. Additional embodiments may include connectors that interface with predefined interfaces, such as small form-factor pluggables (SFP), quad small form-factor pluggables (QSFP), or octal small form-factor pluggables (OSFP). Accordingly, embodiments of the invention allow for plug and play functionality with existing servers and other high performance computing systems.