Multi-Port Distributed Antenna Power Control
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Solution Overview
Problem
Conventional mobile wireless communication devices face significant power inefficiencies in their transmitters and receivers, which impact battery life due to high power consumption, especially in systems where these components are not optimized for power efficiency.
Innovation Solution
A method and system for power control using a multi-port distributed antenna, where power amplifiers are selectively enabled based on desired output power and impedance matching with the antenna ports, allowing for maximum efficiency in different power ranges, and monitored by a power detector to optimize power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional transmitters and receivers are used in mobile wireless devices, then communication functionality is provided, but power consumption is high which reduces battery life
Solution Approach 1:
The patent implements dynamic power control by continuously monitoring the output power level and selectively enabling or disabling power amplifiers based on current operating conditions. This dynamic adjustment allows the system to optimize power efficiency in real-time, directly addressing the contradiction between maintaining communication functionality and reducing power consumption to extend battery life.
Solution Approach 2:
The system changes operational parameters by adjusting which power amplifiers are active based on the desired output power level and impedance matching requirements. By varying the configuration of power amplifiers according to operating conditions, the system achieves optimal power efficiency across different power ranges, thereby improving overall power usage and extending battery life.
2Use of energy by moving object
If multiple power amplifiers are used to cover different power ranges, then power efficiency is improved, but device complexity increases
Solution Approach 1:
The patent divides the power amplification function into multiple separate power amplifiers, each optimized for specific power ranges. This segmentation allows each amplifier to operate at peak efficiency in its designated range, improving overall power efficiency while managing complexity through functional division rather than a single complex amplifier.
Solution Approach 2:
The system achieves multi-functionality by having multiple power amplifiers that can be selectively activated based on operating conditions. This universal approach allows the same set of amplifiers to handle various power levels and impedance conditions, improving power efficiency across all operating scenarios without requiring entirely separate systems for each condition.
3Use of energy by moving object
If power amplifiers are selectively enabled based on output power and impedance matching, then maximum efficiency is achieved in different power ranges, but control complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the system monitors the desired output power level and impedance conditions, then uses this information to selectively enable or disable appropriate power amplifiers. This feedback loop ensures maximum efficiency is achieved in different power ranges while automating the control process to manage complexity through intelligent decision-making rather than manual configuration.
Data Source
AI summary
Methods and systems for power control with optimum power efficiency with a multi-port distributed antenna are disclosed and may include selectively enabling one or more power amplifiers (PAs) coupled to the antenna. The selective enabling may be based on a desired output power radiated from the antenna, and the PAs may be coupled to ports on the antenna based on an output impedance of the PAs and a characteristic impedance of the ports. Each of the PAs may be configured for maximum efficiency in different power ranges. The power ranges may be inversely proportional to the output impedance of the PAs. The output power may be monitored utilizing a power detector, such as an envelope detector, coupled to the antenna. The antenna may be integrated on a chip with the one or more PAs or may be located external to the chip. The antenna may include a microstrip antenna.