Circular Antenna Array With Individual Amplifiers
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Solution Overview
Problem
Current antenna systems and methods lack the ability to selectively control radiation characteristics for multiple users in both transmit and receive directions, leading to inefficiencies and increased emissions in undesired directions.
Innovation Solution
An antenna system comprising multiple antenna elements arranged around an inner diameter, each controlled separately, with corresponding amplifiers or a multi-channel amplifier, allowing for active beam steering and efficient power distribution to reduce unwanted emissions and enhance transmission range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If individual control of antenna elements is implemented, then emissions in undesired directions can be reduced or suppressed, but device complexity increases
Solution Approach 1:
The antenna system is divided into multiple independently controllable antenna elements arranged around an inner diameter. Each element can be controlled separately to shape the radiation pattern, suppress emissions in undesired directions, and enable beam steering without requiring a complex monolithic control system.
Solution Approach 2:
The antenna elements are equipped with individual amplifiers that can be dynamically controlled to adjust radiation characteristics in real-time. This enables active beam steering, where the main lobe direction and shape can be changed dynamically to track targets or avoid interference zones.
2Length of moving object
If multiple amplifiers are used for each antenna element, then transmission range can be enlarged, but device complexity increases
Solution Approach 1:
Multiple amplifiers are combined into a single multi-channel amplifier unit that provides individual amplification channels for each antenna element. This merging approach maintains the capability to independently control each element's amplitude and phase while reducing the overall device complexity and interconnection requirements.
Solution Approach 2:
The multi-channel amplifier serves multiple functions simultaneously: it provides individual amplification for each antenna element, enables beam steering through differential phase control, supports transmission and reception operations, and allows for dynamic adjustment of radiation patterns. This universal component replaces what would otherwise require multiple separate amplifier units.
3Device complexity
If antenna elements are arranged in a circular manner, then complexity is reduced and efficiency is increased, but flexibility in radiation pattern control is limited
Solution Approach 1:
The circular arrangement of antenna elements is combined with dynamic control of each element's amplitude and phase through individual amplifiers. This enables the system to generate various radiation patterns including omnidirectional, sectoral, and directional beams by electronically adjusting the excitation of each element, providing flexibility without changing the physical arrangement.
Solution Approach 2:
The radiation pattern control is achieved by changing the electrical parameters (amplitude and phase) of each antenna element's excitation signal rather than physically reconfiguring the antenna geometry. This allows dynamic adaptation of radiation patterns while maintaining the simple circular mechanical structure.
4Productivity
If beam steering capability is added, then transmission efficiency is improved, but device complexity increases
Solution Approach 1:
Beam steering is implemented by dividing the antenna system into multiple independently controllable elements with individual amplifiers. Each element's signal can be phase-shifted and amplitude-modulated independently, enabling electronic beam formation and steering without requiring complex mechanical moving parts or phased array hardware.
Solution Approach 2:
The individual amplifiers serve as intermediary components between the signal source and the antenna elements, providing the necessary phase and amplitude control to achieve beam steering. These amplifiers act as mediators that translate control signals into the appropriate excitation patterns for directional radiation without requiring complex external control hardware.
Data Source
AI summary
An antenna system is provided. The antenna system comprises at least two antenna elements. In this context, the at least two antenna elements are arranged around an inner diameter. In addition to this, each of the at least two antenna elements is configured to be controlled separately from each other. Exemplarily, each of the at least two antenna elements is connected to a corresponding amplifier.