Triangular Phased-Array Smart Antenna Gain and Directionality
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Solution Overview
Problem
Traditional omni-directional antennas have limited range due to small gain, and directional antennas underutilize potential gain when only one is active at a time.
Innovation Solution
A phased-array smart antenna system using three antennas forming a triangle, with controlled voltage phases at their feeding points to direct and amplify electronic wave signals, allowing simultaneous activation for enhanced gain and directionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If multiple directional antennas are used with only one active at a time, then coverage direction can be controlled, but antenna gain cannot be improved and antennas are underutilized
Solution Approach 1:
The patent combines multiple directional antennas into a phased-array system where all antennas operate simultaneously. By merging the transmitting functions of multiple antennas and coordinating their phases, the system achieves both directional control and improved gain, resolving the contradiction between coverage control and antenna utilization efficiency
Solution Approach 2:
The patent implements dynamic phase control of each antenna element through voltage adjustment at feeding points. This dynamic adjustment allows the system to optimize beam direction and gain in real-time, enabling both directional control and full utilization of all antennas simultaneously
2Adaptability or versatility
If a single omni-directional antenna is used, then 360-degree coverage is achieved, but antenna gain is small and communication distance is limited
Solution Approach 1:
The patent segments the single omni-directional antenna into multiple directional antenna elements arranged in a triangular configuration. Each element contributes to the overall radiation pattern, providing both wide coverage through coordinated operation and enhanced gain through constructive interference, thus extending communication distance while maintaining coverage
Solution Approach 2:
The patent changes the operational parameters by controlling the phase and amplitude of each antenna element through voltage adjustment at feeding points. This parameter control enables the system to achieve higher gain in specific directions while maintaining broad coverage, overcoming the limitation of small gain in omni-directional antennas
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
Increases antenna gain and signal-to-noise ratio, improves signal quality by directing energy and countering multi-path fading effects in wireless communications.
Implementation Method 1
respectively controlling the levels of a first voltage provided to a first node of the first antenna, a second voltage provided to a second node of the second antenna, and a third voltage provided to a third node of the third antenna, so as to adjust a first phase of the electronic wave signal at a feeding point of the first antenna, a second phase of the electronic wave signal at a feeding point of the second antenna, and a third phase of the electronic wave signal at a feeding point of the third antenna
Data Source
AI summary
A phased-array smart antenna for transmitting an electronic wave signal having a wavelength includes a first antenna, a second antenna, and a third antenna. The first antenna, the second antenna, and the third antenna form a triangle and are respectively located at three vertices of the triangle. The first antenna, the second antenna, and the third antenna are activated at the same time for transmitting the electronic wave signal.