3D Bowtie Antenna Array for Balloon Ground Links
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Solution Overview
Problem
In areas where traditional data connectivity infrastructure is unavailable, unreliable, or costly, there is a need for innovative network solutions that can facilitate reliable communication between ground-based systems and high-altitude platforms like balloons, which can move relative to each other.
Innovation Solution
The implementation of a three-dimensional bowtie antenna array system that includes four bowtie antennas aligned in a specific arrangement to enhance radiation pattern control, allowing communication over a wider range of angles by using phase adjustments and perpendicular polarizations, enabling effective communication between balloon-based and ground-based devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional single-antenna system is used, then the device complexity is low, but the communication reliability deteriorates when the balloon moves away from the ground station
Solution Approach 1:
The antenna system is divided into four separate radiating elements arranged in a three-dimensional configuration, with each element contributing to different aspects of the radiation pattern. This segmentation allows the system to achieve omnidirectional coverage and maintain reliable communication across a wide range of angles without requiring a single complex antenna design
Solution Approach 2:
The patent transitions from a two-dimensional antenna arrangement to a three-dimensional configuration by positioning radiating elements at different heights and orientations. This dimensional expansion enables the system to maintain consistent signal strength regardless of the balloon's horizontal position relative to the ground station, significantly improving communication reliability
2Adaptability or versatility
If the antenna system uses fixed radiation pattern, then the device complexity is low, but the adaptability to varying communication angles deteriorates
Solution Approach 1:
The antenna system incorporates variable phase shifters that dynamically adjust the phase of signals fed to each radiating element based on the balloon's position relative to the ground station. This dynamic phase control enables the radiation pattern to adapt continuously to varying communication angles, maintaining optimal signal strength across the entire operational range
Solution Approach 2:
The system changes the electrical parameters (phase and amplitude) of the signals fed to each radiating element in response to varying communication conditions. By adjusting these parameters dynamically, the antenna system maintains a consistent radiation pattern that adapts to different balloon positions without requiring physical reconfiguration
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 increases the reliability of balloon-to-ground communication links by creating a radiation pattern that compensates for varying angles and signal strengths, ensuring consistent connectivity even when the balloon is not directly overhead, thus supplementing cellular networks in areas of insufficient coverage or capacity.
Implementation Method 1
a first set of radiating elements configured to emit electromagnetic radiation corresponding to an input signal
Implementation Method 2
a reflecting element configured to reflect at least a portion of the electromagnetic radiation emitted by the radiating elements
Data Source
AI summary
This disclosure relates to an antenna system. The antenna system includes a first and a second set of radiating elements each configured to emit electromagnetic radiation corresponding to an input signal. The electromagnetic energy may be emitted by the first set may have a first polarization. The first set of radiating elements includes a first radiating element having a first height. The first set also includes a second radiating element having a second height. The second radiating element may be coupled to a first phase adjustment component. The electromagnetic energy may be emitted by the first set may have a second polarization that is perpendicular to the first polarization. The second set of radiating elements includes a third radiating element having a third height. The second set also includes a fourth radiating element having a fourth height. The fourth radiating element may be coupled to a second phase adjustment component.