3D Electronic Circuit Radiative Coupling for Signal Loss Reduction
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Solution Overview
Problem
Conventional two-dimensional electronic circuits face significant challenges with high-frequency signal transmission due to radiation and dielectric losses, increased system complexity, and interconnect-related failures, especially in THz and submillimeter-wave applications.
Innovation Solution
A three-dimensional electronic circuit design is implemented, where two-dimensional circuits are coupled through radiation, utilizing radiative elements and guiding structures to minimize interconnects and optimize signal transfer, allowing for complex circuit topologies and reduced losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional two-dimensional circuits use wires and connectors for signal transmission, then circuit connectivity is achieved, but radiation and dielectric losses increase significantly at high frequencies (>100 GHz)
Solution Approach 1:
The patent transitions from two-dimensional planar circuits to three-dimensional stacked circuits, where multiple circuit layers are vertically arranged and coupled through radiation. This dimensional change allows signals to be transmitted between layers via radiative elements without requiring physical wire interconnects, thereby reducing resistive and dielectric losses while enabling complex circuit topologies in the vertical dimension
Solution Approach 2:
The patent replaces mechanical wire and connector interconnects with electromagnetic radiation-based coupling between radiative elements on different circuit layers. This substitution eliminates the physical contact and associated losses of traditional interconnects, using field-based energy transfer instead of conductor-based signal transmission
2Adaptability or versatility
If more interconnects are added to handle circuit complexity, then circuit functionality is enhanced, but reliability decreases due to increased failure points
Solution Approach 1:
By stacking circuit layers vertically, the patent achieves enhanced circuit functionality and increased interconnect density without proportionally increasing the number of physical wire connections. The radiative coupling mechanism enables multiple signal paths between layers, providing functional complexity while maintaining reliability through reduced physical interconnect count
3Ease of manufacture
If traditional packaging and bonding wires are used for chip assembly, then chip integration is achieved, but performance degrades due to additional losses at high frequencies
Solution Approach 1:
The patent eliminates traditional bonding wire interconnects by using radiative elements that directly couple signals between circuit layers and external antennas. This removes the bonding wire interface that causes significant losses at high frequencies, replacing mechanical wire bonding with electromagnetic field-based signal transfer
4Loss of energy
If radiative elements are used for signal coupling between circuit layers, then interconnect losses are reduced, but mutual coupling between antennas increases
Solution Approach 1:
The patent employs polarization multiplexing where different radiative elements are assigned different polarization states (e.g., horizontal and vertical). This allows multiple signal channels to coexist in the same spatial region without significant mutual interference, as orthogonally polarized waves do not couple strongly. The harmful mutual coupling is thus converted into a useful multiplexing mechanism
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 approach reduces signal losses and increases reliability by minimizing interconnects, enabling efficient high-frequency signal manipulation and transmission in complex systems, particularly in THz and submillimeter-wave applications.
Implementation Method 1
The two-dimensional electronic circuits are coupled (e.g. electronically coupled and/or electro-magnetically coupled) with each other by radiation
Data Source
AI summary
The present disclosure relates to an electronic circuit having a three-dimensional design by comprising a set of two-dimensional electronic circuits, wherein the two-dimensional electronic circuits are coupled with each other by radiation. The disclosure further relates to a radar antenna system.