Differential RF Module Architecture for High-Power Low-Loss Transmission
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Solution Overview
Problem
Existing radio frequency modules face challenges in achieving high-power transmission while maintaining low power consumption and reducing size, due to the increased power consumption and transmission loss associated with high electric power handling requirements for switches and filters.
Innovation Solution
A radio frequency module design that includes a differential amplification type amplifier circuit, multiple switches, and filters, where balanced signals are transmitted through all signal paths, reducing signal power and allowing for reduced electric power handling capability, thus achieving low power consumption and smaller size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the area is increased to enhance the electric power handling capability of the switch and the filters, then the transmission loss is increased
Solution Approach 1:
The patent changes the signal type parameter from unbalanced to balanced signals throughout the signal path. This parameter change allows the system to achieve high electric power handling capability through proper differential signaling while maintaining low transmission loss, as balanced signals are more immune to interference and can be transmitted efficiently over longer distances without requiring larger component areas.
Solution Approach 2:
The patent makes the signal path universally compatible with balanced signaling throughout, from the power amplifier output through the switches to the filter inputs. This multi-functional approach allows the same circuit architecture to handle high power requirements while maintaining signal integrity and minimizing losses, eliminating the need for separate high-power handling paths.
2Power
If high-power transmission is implemented, then power consumption is increased
Solution Approach 1:
The patent changes the operational parameter of signal type to balanced/differential signaling throughout the entire signal path. This allows the system to achieve high transmission power output while maintaining lower power consumption because balanced signals reduce interference and retransmission needs, and the differential amplification is more efficient at converting DC power to RF power at the required output levels.
Data Source
AI summary
A radio frequency module includes amplifiers that form an amplifier circuit of differential amplification type, a switch that has a common terminal and selection terminals, a switch that has a common terminal and selection terminals, a filter that has balanced terminals and an unbalanced terminal and that has a passband including a first band, and a filter that has balanced terminals and an unbalanced terminal and that has a passband including a second band.