Antenna Pointing via SWM Feedback for Signal Maximization
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Solution Overview
Problem
Current satellite receiver systems face challenges in accurately aligning antennas to receive signals from multiple satellites and varying frequency bands, particularly in Ka-band operations, leading to signal loss and interference due to imprecise alignment.
Innovation Solution
A method and system that utilize a Single Wire Multiswitch (SWM) coupled with a power meter and controller to align the reflector dish by maximizing signal strength from specific satellites, employing Frequency Shift Keyed commands and beam squint principles to precisely point the antenna along an orbital arc, allowing for accurate reception of Ku-band and Ka-band signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional alignment methods are used for multi-band satellite antennas, then the system can receive signals from multiple satellites, but the alignment precision is insufficient leading to signal loss and interference
Solution Approach 1:
The system employs a feedback mechanism where the power meter continuously measures signal strength from the satellite and provides real-time feedback to the controller. The controller adjusts the antenna position based on this feedback to maximize signal strength, thereby achieving precise alignment and reliable signal reception simultaneously.
Solution Approach 2:
The patent replaces traditional manual mechanical alignment methods with an automated electronic control system. The controller electronically adjusts the antenna position based on power meter readings, substituting the mechanical trial-and-error alignment process with a precision electronic control system that achieves both high alignment precision and signal reliability.
2Adaptability or versatility
If the antenna is aligned for one frequency band, then signals from that band are received well, but signals from other frequency bands (e.g., Ka-band) experience interference and loss
Solution Approach 1:
The alignment system is designed with universal applicability to handle multiple frequency bands (Ku-band and Ka-band). The controller and power meter work together to perform alignment procedures that are effective across different bands, enabling the antenna to reliably receive signals from multiple frequency bands without requiring separate alignment procedures for each band.
3Device complexity
If manual alignment procedures are used, then the system structure remains simple, but the alignment time and complexity increase significantly
Solution Approach 1:
The system performs self-alignment through the automated interaction between the power meter and controller. The power meter automatically measures signal strength and the controller automatically adjusts the antenna position based on these measurements, enabling the system to align itself without requiring complex external alignment equipment or procedures, thus reducing both time and overall system complexity.
Data Source
AI summary
A method and system for aligning an antenna reflector with satellites in a satellite configuration. A method in accordance with the present invention comprises pointing the reflector to a position along an orbital arc used in the satellite configuration, commanding a Single Wire Multiswitch circuits which is coupled to the reflector of the antenna to output a signal from at least one satellite at the orbital slot, and adjusting the reflector to maximize reception of the signal from the orbital slot.