Repeater Amplifier Network With Shared Paths for Higher Uplink Power
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Solution Overview
Problem
Existing signal boosters have a limited maximum uplink power capability of 24 dBm, which restricts their ability to reach cell towers at farther distances, necessitating a solution to increase power without increasing cost or size.
Innovation Solution
Implementing a trunked or shared amplifier solution that minimizes the number of power amplifier devices, using low voltage, high gain, high efficiency monolithic microwave integrated circuit (MMIC) devices based on indium gallium phosphide (InGaP) heterojunction-bipolar-transistor (HBT) and gallium arsenide (GaAs) technology to achieve higher uplink power of 30 dBm per band.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional signal booster architecture is used, then device simplicity is maintained, but uplink power is limited to 24 dBm
Solution Approach 1:
The amplifier network is segmented into multiple independent amplifier paths, each capable of operating at lower power levels. By dividing the single high-power amplifier into multiple lower-power amplifiers working in parallel, the system achieves higher aggregate output power (30 dBm) while maintaining design simplicity and modular flexibility.
Solution Approach 2:
Multiple amplifier outputs are merged through a combiner network to achieve higher aggregate power. The individual amplifier outputs are combined constructively to produce the desired 30 dBm output level, allowing the system to exceed the capability of any single amplifier while managing complexity through standardized combining architecture.
2Power
If more power amplifier devices are added to increase power output, then uplink power capability increases, but cost and device size increase
Solution Approach 1:
The amplifier network is designed with universal, multi-functional amplifier units that can serve multiple purposes. Each amplifier unit is designed to operate independently and can be configured for different frequency bands and power requirements, reducing the total number of specialized components needed while achieving the 30 dBm output target.
Solution Approach 2:
The system achieves higher power output by changing operational parameters of existing amplifier components rather than simply adding more devices. By optimizing voltage, gain, and efficiency parameters of MMIC devices based on InGaP HBT and GaAs technology, the system reaches 30 dBm output with minimized component count and optimized resource utilization.
Data Source
AI summary
Technology for a repeater with a trumped amplifier network is disclosed. The repeater can include two or more signal paths corresponding to two or more bands. The repeater can include a first coupler network communicatively coupled to the two or more signal paths. The repeater can include a second coupler network communicatively coupled to an antenna port. The repeater can include two or more amplifier networks between the first coupler network and the second coupler network. A signal received via the first coupler network can be distributed to the two or more amplifier networks for amplification and combined using the second coupler network to produce an amplified output signal.