Rotating Wireless Antenna for Fixed Network Alignment
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Solution Overview
Problem
Current wireless communication systems face limitations in accessing networks in various environments due to signal blocking, insufficient signal strength, urban and rural infrastructure issues, and spectrum reuse, leading to interference and degraded service quality, particularly in 4G services.
Innovation Solution
A directional and steerable broadband wireless antenna system that combines signals from a direct broadcast satellite system with wireless network signals, using a rotatable antenna assembly within a closed cylinder, which can be omnidirectional during installation and directional during operation, allowing for alignment based on signal characteristics to enhance communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed omnidirectional antenna is used during installation, then ease of installation is improved, but directional communication performance deteriorates
Solution Approach 1:
The antenna assembly is designed to be rotatable within the closed cylinder, transitioning from a fixed omnidirectional configuration during installation to a steerable directional configuration during operation. The rotation mechanism allows the antenna elements to be dynamically repositioned to optimize signal reception and transmission in specific directions, resolving the contradiction between ease of installation and directional communication performance.
2Reliability
If signal strength is increased to overcome blocking and interference, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
Instead of using high power omnidirectional transmission, the antenna system concentrates signal energy in specific directions by rotating the antenna assembly to align with the desired communication path. This localized signal concentration improves communication reliability through better signal-to-noise ratio without requiring increased overall power consumption, as the energy is focused where needed rather than dispersed in all directions.
3Productivity
If spectrum reuse is increased to improve network capacity, then productivity is improved, but interference levels increase
Solution Approach 1:
The steerable antenna system enables spatial separation of communication channels by directing signals toward specific geographic locations. This allows the same frequency spectrum to be reused in different spatial zones without causing interference, as the directional antennas create isolated communication paths. Network capacity is improved through spectrum reuse while interference is minimized through spatial filtering provided by the directional beamforming capability.
Data Source
AI summary
An apparatus and method for combining signals received from a direct broadcast satellite system with signals received from a wireless network, includes a satellite antenna for receiving the signals from the direct broadcast satellite system; and a wireless network antenna, co-located with the satellite antenna, for receiving the signals from the wireless network. The wireless network antenna includes an antenna assembly that is rotated by a controller based on characteristics of the signals received from the wireless network. The controller energizes and de-energizes a motor to mechanically rotate the antenna assembly to properly align the wireless network antenna to communicate with the wireless network. The wireless network antenna comprises a closed cylinder, wherein the antenna assembly is rotatably mounted within the closed cylinder, such that, upon command from the controller, the motor engages the antenna assembly to mechanically rotate the antenna assembly about a central axis of the closed cylinder.