Multi-band Power Amplifier for Compact MIMO RF Circuits
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Solution Overview
Problem
The existing radio frequency modules for MIMO technology require separate power amplifiers for each circuit, leading to increased circuit size and complexity, making it difficult to achieve compact designs for transmitting both MIMO and non-MIMO signals.
Innovation Solution
A radio frequency circuit design that incorporates a single power amplifier capable of amplifying signals in multiple bands, utilizing a switch configuration to simultaneously connect and disconnect terminals for different frequency bands, reducing the number of power amplifiers and circuit components, and allowing for both MIMO and non-MIMO signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate power amplifiers are provided for each circuit (MIMO and non-MIMO), then each circuit can be independently amplified, but the circuit size and overall radio frequency circuit size increase
Solution Approach 1:
The patent combines multiple power amplifier functions into a single power amplifier that can serve both MIMO and non-MIMO circuits. The power amplifier is configured with multiple output terminals that can be selectively connected to different circuits based on operational mode, eliminating the need for separate power amplifiers for each circuit type.
Solution Approach 2:
The power amplifier is designed as a universal component that can amplify signals for both MIMO and non-MIMO operations. It includes multiple output terminals and switching mechanisms that allow it to adaptively serve different circuits depending on the operational requirements, making it a multi-functional component.
2Adaptability or versatility
If separate power amplifiers are provided for MIMO and non-MIMO circuits, then each circuit can operate independently, but the overall device complexity increases
Solution Approach 1:
The patent merges the functionality of multiple power amplifiers into a single integrated power amplifier unit. This consolidation reduces the number of discrete components while maintaining the ability to independently control MIMO and non-MIMO circuits through selective switching and terminal connections.
Solution Approach 2:
The power amplifier is designed as a universal component that can operate in multiple modes (MIMO and non-MIMO) through its multiple output terminals and switching mechanisms. This multi-functionality reduces device complexity by eliminating redundant power amplifier components while preserving operational independence.
3Reliability
If multiple power amplifiers are used for different frequency bands, then each band can be amplified optimally, but the radio frequency circuit size increases
Solution Approach 1:
The patent combines multiple power amplifier functions for different frequency bands into a single power amplifier unit with multiple output terminals. Each terminal can be connected to different frequency band circuits, allowing the single power amplifier to handle multiple bands without requiring separate dedicated amplifiers for each band.
Solution Approach 2:
The power amplifier is designed as a universal multi-band amplifier that can optimally amplify signals across different frequency bands through its multiple output terminals. This multi-functionality allows a single component to replace what would traditionally require multiple dedicated power amplifiers, reducing overall circuit volume.
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 enables a compact and efficient transmission of MIMO and non-MIMO signals, reducing the size and power consumption of the radio frequency circuit while maintaining high amplification performance and noise reduction.
Implementation Method 1
a first power amplifier configured to amplify the signal in the first band; a second power amplifier configured to amplify the signal in the first band and the signal in the second band
Implementation Method 2
a first filter having a pass band including at least a part of the first band; a second filter having another pass band including at least a part of the second band
Data Source
AI summary
A radio frequency circuit performs MIMO transmission in a band A and uplink communications in the band A and a band B and includes a power amplifier that amplifies a signal in the band A; a power amplifier that amplifies signals in the bands A and B; a filter that has a pass band including the band A; a filter that has a pass band including the band B; a filter that has a pass band including the band A; and a switch that simultaneously connects a terminal to a terminal and a terminal to a terminal and simultaneously connects the terminal to the terminal (32c) and the terminal to a terminal. The terminal is connected to the power amplifier, the terminal is connected to the power amplifier, the terminal is connected to the filter, the terminal is connected to the filter, and the terminal is connected to the filter.