Multilayer Phase Shifter Coil Layout for Lower Insertion Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing phase shifter circuitry layouts face challenges in maintaining signal quality and reducing the occupied area, leading to increased insertion loss and induced currents.
Innovation Solution
The phase shifter circuitry incorporates non-overlapping coils with orthogonal, figure-eight shaped polygonal conductors disposed on multiple circuit layers, reducing induced currents and minimizing the occupied area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional overlapping coil layouts are used in phase shifter circuitry, then the occupied area is reduced, but insertion loss increases and signal quality deteriorates due to induced currents
Solution Approach 1:
The patent transitions from planar coil layouts to three-dimensional stacked coil configurations across multiple circuit layers. Coils are arranged in different spatial dimensions with orthogonal orientations, allowing electromagnetic field decoupling while maintaining compact footprint. This dimensional transition reduces mutual inductance and induced currents between adjacent coils, thereby reducing insertion loss without increasing occupied area.
Solution Approach 2:
The patent implements nested coil structures where smaller coils are positioned within the boundaries of larger coils on different circuit layers. This nesting arrangement optimizes space utilization and allows for controlled electromagnetic coupling. The nested configuration enables phase shifting functionality while minimizing the overall occupied area and reducing harmful induced currents through proper spatial separation.
2Area of stationary object
If compact coil layouts are used to reduce occupied area, then space is minimized, but induced currents increase causing signal quality degradation
Solution Approach 1:
By stacking coils on multiple circuit layers with orthogonal orientations, the patent creates three-dimensional separation between coils that would otherwise be adjacent in planar layouts. This spatial separation in the vertical dimension reduces magnetic coupling and induced currents while maintaining compact horizontal footprint. The orthogonal arrangement ensures that magnetic fields from adjacent coils do not align, minimizing induced current effects.
Solution Approach 2:
The patent employs asymmetric coil configurations where coils on different layers have different orientations and sizes. This asymmetry prevents symmetric magnetic field patterns that would maximize coupling. By using figure-eight shaped conductors with non-uniform current distribution, the design creates asymmetric field patterns that reduce mutual inductance and induced currents in adjacent coils.
3Reliability
If orthogonal figure-eight shaped polygonal conductors on multiple layers are used, then signal linearity improves and insertion loss reduces, but device complexity increases
Solution Approach 1:
The patent divides the phase shifter circuitry into multiple independent coil segments on different circuit layers. Each coil segment functions as a separate phase shifting element with controlled electromagnetic characteristics. This segmentation allows independent optimization of each coil's geometry and positioning to achieve desired signal linearity while managing overall device complexity through modular design.
Solution Approach 2:
The transition to three-dimensional stacked configurations with orthogonal figure-eight shaped conductors creates spatial separation that reduces electromagnetic interference between signal paths. This dimensional arrangement improves signal linearity by minimizing coupling effects, while the regular repeating patterns of the figure-eight shapes provide a systematic approach that manages design complexity.
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 design achieves reduced insertion loss and improved signal linearity while occupying less space, enhancing the efficiency and performance of phase shifting operations.
Implementation Method 1
reducing induced currents and minimizing the occupied area
Data Source
AI summary
This disclosure is directed to phase shifter circuitry with reduced insertion loss and/or reduced area compared to other phase shifter circuitry. The phase shifter circuitry may include a first phase shifter circuit and a second phase shifter circuit. The first phase shifter circuit may include two overlaid coils forming three inductors. Similarly, the second phase shifter circuit may include two overlaid coils forming three inductors. A coil of the first phase shifter circuit may be extended orthogonally to a coil of the second phase shifter. As such, the first phase shifter circuit and the second phase shifter circuit may have reduced undesired induced currents during operation. Moreover, the coils of each of the phase shifter circuits are disposed adjacently on multiple circuit layers to improve the insertion loss of the phase shifter circuitry, reduced the area occupied by the phase shifter circuitry, or both, among other things.