Multi-Loop ISM Transformer for Adaptive RF Gain and Matching
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Solution Overview
Problem
Existing amplifier devices in wireless communication systems face challenges in adjusting gain and maintaining impedance matching while accommodating varying signal strengths and peak-to-average power ratios, particularly in the terahertz bands of 6G communication systems, which require advanced RF elements and technologies to enhance signal transmission and coverage.
Innovation Solution
The implementation of a transformer with a multi-loop structure that includes primary and secondary loops with varying sizes and Q-factors, allowing for adjustable attenuation levels through controlled switching, enabling impedance matching and attenuator functions to adapt to different signal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional transformer structure is used, then the device complexity is low, but the adaptability to different signal conditions is insufficient
Solution Approach 1:
The transformer is divided into multiple primary loops and multiple secondary loops, each with different sizes and Q-factors. This segmentation allows selective activation of specific loops based on signal conditions, enhancing adaptability while managing complexity through modular design
Solution Approach 2:
The transformer configuration is made dynamic by enabling selective switching between different loop combinations. The system can adaptively change which primary and secondary loops are active based on real-time signal strength and impedance requirements, providing versatility without permanently increasing structural complexity
2Adaptability or versatility
If the attenuation level is adjusted for different signal strengths, then the adaptability improves, but the device complexity increases due to switching mechanisms
Solution Approach 1:
The attenuator function is merged with the transformer structure itself. By integrating the attenuation capability into the transformer's loop configuration, the patent eliminates the need for separate attenuator components and switching mechanisms, thereby providing adjustable attenuation while avoiding additional device complexity
Solution Approach 2:
The transformer is designed to perform multiple functions: impedance matching and signal transformation are combined with attenuation control. The same loop structure that provides impedance transformation also enables attenuation adjustment, making the device multi-functional without requiring separate dedicated components for each function
3Adaptability or versatility
If multiple loops with different Q-factors are used, then the adaptability to varying signal conditions improves, but the manufacturing precision requirements increase
Solution Approach 1:
Different loops are designed with locally optimized Q-factors and sizes according to their specific functional requirements. Each loop's parameters are tailored to its role in the overall system, allowing the transformer to handle various signal conditions while maintaining reasonable manufacturing tolerances for each individual loop rather than requiring uniform high precision across all components
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 multi-loop transformer effectively adjusts attenuation levels to optimize signal amplification and impedance matching, enhancing performance across varying signal strengths and distances, thereby improving signal quality and reducing loss in 6G communication systems.
Implementation Method 1
a transformer with a multi-loop structure that includes primary and secondary loops with varying sizes and Q-factors
Data Source
AI summary
A communication device configured to transmit/receive a radio frequency (RF) signal is provided. The device includes a transceiver including an amplifier device using a multi-loop inter-stage matching (ISM) transformer, and a processor configured to control an operation of the amplifier based on a signal strength during transmission/reception of the RF signal. The transformer is disposed between a first amplifier and a second amplifier and includes a plurality of primary loops and a plurality of secondary loops, each primary loop includes an inductor component having a different size and a different Q-factor and each secondary loop includes an inductor component having a different size and a different Q-factor. The processor adjusts an attenuation level of the transformer by controlling a switching connection to the first amplifier and the second amplifier for one primary loop among the plurality of primary loops and one secondary loop among the plurality of secondary loops.