Solar-Powered Mast Pre-Amplifier for Stable OTA RF Signal Gain
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Solution Overview
Problem
Existing systems for powering mast-mounted pre-amplifiers connected to outdoor antennas face challenges in maintaining reliable signal amplification and carrier-to-noise ratio, especially when serving multiple receivers across varying distances and network topologies, due to unpredictable power fluctuations and signal loss.
Innovation Solution
A system comprising a pre-amplifier connected to a mast-mounted antenna and a solar power unit, where the solar power unit delivers power to the pre-amplifier, ensuring amplified RF signals are maintained at an acceptable carrier-to-noise ratio independent of receiver location, using a solar panel and rechargeable battery for consistent operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If power is supplied through building's conventional electrical network to operate pre-amplifier, then pre-amplifier can be powered, but power supply reliability deteriorates due to uncertainty and variability in network topology
Solution Approach 1:
The patent extracts the pre-amplifier from the building's conventional electrical network and powers it independently using a solar power unit mounted on the antenna mast. This separation eliminates the reliability issues caused by variable network topology while maintaining continuous power supply to the pre-amplifier.
Solution Approach 2:
The pre-amplifier system becomes self-sufficient by generating its own power through solar panels mounted on the antenna mast. The system captures solar energy directly at the antenna location and uses it to power the pre-amplifier, eliminating dependence on the building's electrical network.
2Reliability
If pre-amplifier is placed close to antenna to minimize signal loss, then signal quality improves, but power supply complexity increases due to remote location
Solution Approach 1:
The patent combines the antenna mast structure with the solar power unit and pre-amplifier into an integrated system. The solar panels are mounted on the existing mast, and the pre-amplifier is positioned at the base of the mast, creating a unified structure that simplifies power delivery while maintaining optimal signal quality.
Solution Approach 2:
The patent introduces a power conditioning circuit as an intermediary between the solar power unit and the pre-amplifier. This circuit regulates and conditions the solar power output, making it suitable for the pre-amplifier while managing the complexity of power supply from the remote mast location.
3Reliability
If solar power unit is used to power pre-amplifier, then power supply reliability improves, but initial cost increases
Solution Approach 1:
The antenna mast structure serves multiple functions: it supports the antenna for signal capture, mounts the solar panels for power generation, and provides structural support for the entire system. This multi-functionality reduces the need for separate structures and lowers overall system cost.
Solution Approach 2:
The patent uses a rechargeable battery with variable capacity that can be adjusted based on the number of receivers and power consumption requirements. This flexibility allows the system to be scaled appropriately, optimizing the balance between reliability and cost for different installation scenarios.
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 solution provides reliable, low-cost, and environmentally benign high-quality RF signal amplification to multiple receivers, regardless of their location within a building or across adjacent buildings, by minimizing signal loss and noise pickup through efficient power management.
Implementation Method 1
a solar power unit; wherein the solar power unit is configured to deliver power to operate the pre-amplifier
Data Source
AI summary
A system to process antenna-captured OTA-transmitted RF signals for delivery to a receiver within a building includes a pre-amplifier connected to a single antenna, mounted on a mast positioned outside the building, the receiver, and a solar power unit. The solar power unit delivers power to operate the pre-amplifier. The pre-amplifier amplifies the antenna-captured signals before delivering them to the receiver at a carrier to noise ratio above an acceptable threshold, independent of where the receiver is located within the building.