Antenna Arrangement with Butler Matrix Gain Control
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Solution Overview
Problem
In wireless communications networks, existing antenna systems face challenges in dynamically adjusting cell size to prevent interference while maintaining coverage, as large cells lead to frequency reuse issues and small cells are inefficient in resource allocation.
Innovation Solution
The implementation of a self-installable antenna arrangement with a controllable field pattern, utilizing a plurality of antenna elements connected through a beam forming Butler matrix, transceiver circuitry, and individually controllable gain control elements, allowing for dynamic adjustment of signal transmission and reception powers based on detected signal strengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna transmits signals with high power and receives signals with high sensitivity, then the cell size is relatively large, but frequency reuse interference increases between cells
Solution Approach 1:
The patent implements dynamic control of antenna beam patterns through electronically controllable beam forming networks and gain control elements. The beam patterns can be dynamically adjusted to change cell sizes and shapes, allowing the network to optimize coverage area while managing interference through real-time reconfiguration of antenna radiation patterns
Solution Approach 2:
The patent applies different gain control settings to individual antenna elements or specific beam directions, creating non-uniform radiation patterns. This allows selective enhancement of signal strength in certain directions while reducing it in others, enabling precise control over cell boundaries and interference zones without uniformly affecting the entire coverage area
2Object-generated harmful factors
If the antenna transmits signals with low power and receives signals with low sensitivity, then the cell size is relatively small, but resource allocation efficiency decreases
Solution Approach 1:
The system dynamically adjusts beam patterns and gain settings based on network conditions, traffic demand, and interference levels. This allows the network to optimize resource allocation by concentrating signal power where needed while maintaining smaller cell sizes for frequency reuse, thereby improving overall network efficiency and productivity
Solution Approach 2:
The patent utilizes electronically controllable parameters such as beam direction, beam width, and gain levels to optimize antenna performance. By changing these parameters dynamically, the system can adapt cell sizes and signal powers to match network requirements, improving resource allocation efficiency without causing excessive interference
3Adaptability or versatility
If the network configuration is changed dynamically to add or remove base stations and reallocate frequencies, then network flexibility improves, but the complexity of managing cell sizes and interference increases
Solution Approach 1:
The patent implements dynamically reconfigurable antenna systems with electronically controllable beam forming networks and gain control elements. These systems can be programmatically adjusted to adapt to changing network configurations, allowing automated management of cell sizes and interference patterns as base stations are added or removed and frequencies are reallocated
Solution Approach 2:
The system uses electronically controllable parameters that can be remotely adjusted and programmed to match network requirements. This allows centralized management and automation of antenna configurations, reducing the operational complexity of managing dynamic network changes while maintaining high adaptability
Data Source
AI summary
An antenna has multiple antenna elements, with a beam forming Butler matrix, having antenna ports and input/output ports, with each of said antenna elements being connected to a respective port of the beam forming Butler matrix. Transceiver circuitry is connected to each of the input/output ports of the beam forming matrix by means of respective distinct transmit and receive paths and a respective duplexer. Individually controllable gain control elements are located in each of the transmit and receive paths. These can be controlled in response to signal strength measurements made by the antenna.