Overlaid Resistor Loop Transducer for High-Frequency Antenna Coupling
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Solution Overview
Problem
Conventional transducers with planar resistor loops suffer from significant inductive impedances at high frequencies, reducing the efficiency of antenna operation in the terahertz range.
Innovation Solution
The use of an overlaid resistor loop transducer with conductive paths that partially or totally overlap along their lengths, reducing inductive impedance and enhancing resistance without excessive inductive effects, is implemented.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional planar resistor loop transducers are used, then the structure is simple and easy to manufacture, but inductive impedance increases significantly at high frequencies reducing efficiency
Solution Approach 1:
The patent transitions from a planar two-dimensional layout to a three-dimensional stacked configuration where conductive paths are arranged in multiple layers. This vertical stacking allows the conductive paths to overlap in the third dimension, creating a compact structure that reduces inductive impedance while maintaining ease of manufacture through standard multi-layer fabrication processes.
Solution Approach 2:
The patent combines multiple conductive paths into a single integrated transducer structure where the paths are electrically connected and physically overlaid. This merging of conductive elements into a unified stacked architecture reduces the overall inductive impedance compared to separate planar loops while preserving manufacturing simplicity.
2Device complexity
If conventional planar resistor loops are used, then the design is straightforward, but inductive impedance reduces transducer efficiency at terahertz frequencies
Solution Approach 1:
By stacking conductive paths in multiple layers with vertical overlap, the patent creates a three-dimensional structure that reduces inductive impedance. This dimensional transition maintains relatively simple device architecture while dramatically improving transducer efficiency at terahertz frequencies through reduced energy loss.
3Loss of energy
If conductive paths are overlaid in perpendicular direction, then inductive impedance is minimized and efficiency improved, but manufacturing precision requirements increase
Solution Approach 1:
The stacked configuration with vertical overlap utilizes the third dimension to achieve precise alignment between conductive paths. This approach minimizes inductive impedance by ensuring proper overlay while managing manufacturing precision through controlled layer stacking and alignment features in the vertical direction.
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 improves the efficiency of antenna operation by minimizing inductive impedance, allowing for effective energy conversion and voltage generation at high frequencies.
Implementation Method 1
The antenna portions generally collect energy associated with radiation from wireless signals received by an antenna. The antenna portions produce an associated current, and the transducer converts that current into a direct current (DC) voltage.
Implementation Method 2
Conventional transducers typically include planar resistor loops... A problem with conventional resistor loop transducers is that they can suffer from significant inductive impedances at higher frequencies... The inductive impedance created in a conventional resistor loop transducer can reduce the efficiency of the transducer
Data Source
AI summary
An apparatus includes an antenna having multiple conductive portions. The apparatus also includes a transducer electrically coupling the conductive portions of the antenna. The transducer includes a first conductive path electrically coupled to one of the conductive portions and a second conductive path electrically coupled to the first conductive path and to another of the conductive portions. The first and second conductive paths at least partially overlap along at least a substantial portion of their lengths, where the overlap occurs in a direction perpendicular to a plane of the antenna portions.