Switchable Coil Layout for Wider RF Range in Smaller Chips
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Solution Overview
Problem
Existing wireless communication technologies face challenges in expanding frequency ranges without increasing chip size, as multiple transmitters require additional hardware components, leading to larger chip sizes and resource consumption.
Innovation Solution
A switchable coil design that includes a first coil and a second coil with a specific structure, where the second crossing-region of the second coil is inside the first inner coil, and a switch connected to a region facing the second crossing-region, allowing for adjustable inductance and reduced magnetic coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two transmitters are implemented to expand the frequency range to 6G band, then the frequency range is expanded, but the chip size is increased
Solution Approach 1:
The patent merges two transmitter functions into a single transmitter by using a switchable coil structure that can operate at different frequency bands (5G and 6G). The first coil and second coil are combined in a shared transmitter architecture, allowing frequency range expansion without duplicating the entire transmitter hardware, thus reducing chip size compared to implementing two separate transmitters
Solution Approach 2:
The patent employs dynamic switching between different coil configurations to adapt to different frequency bands. The switch connected to the second inner coil allows dynamic reconfiguration of the resonant circuit parameters, enabling the single transmitter to operate across multiple frequency ranges (5G and 6G bands) by changing the effective inductance and capacitance values
2Adaptability or versatility
If two transmitters are implemented to expand the frequency range, then the frequency range is expanded, but resource consumption is increased
Solution Approach 1:
The patent creates a universal transmitter architecture where a single transmitter can perform multiple functions by switching between different coil configurations. The switchable coil structure enables the same transmitter hardware to serve both 5G and 6G frequency bands, eliminating the need for separate dedicated transmitters for each band and thereby reducing overall resource consumption
Solution Approach 2:
The patent combines the functionality of two separate transmitters into one unified transmitter with switchable coil configurations. This merging approach reduces power consumption, manufacturing costs, and resource utilization while maintaining the capability to operate across multiple frequency ranges
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
The switchable coil design enables the extension of frequency range without multiple transmitters, reducing chip size and resource consumption, while increasing bandwidth and Q value, and minimizing gain loss.
Implementation Method 1
a first coil including a first outer coil and a first inner coil, the first outer coil and the first inner coil forming a first crossing-region, a second coil including a second outer coil and a second inner coil, the second outer coil and the second inner coil forming a second crossing-region
Implementation Method 2
the second crossing-region being inside the first inner coil viewed in a first direction, and a switch connected to a first region facing the second crossing-region in the second inner coil
Data Source
AI summary
A switchable coil includes a first coil including a first outer coil and a first inner coil, the first inner coil and the first outer coil forming a first crossing-region, a second coil including a second outer coil and a second inner coil, the second inner coil and the second outer coil forming a second crossing-region, and the second crossing-region being inside the first inner coil viewed in a first direction, and a switch connected to a region facing the second crossing-region in the second inner coil.