Omnidirectional Antenna Wire Loop Ferrite Rod Hybrid Network
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional antenna designs are limited in their ability to provide omnidirectional coverage, especially in environments with obstacles or varying orientations, such as tunnels and buildings, where signal propagation is hindered by the need for line-of-sight and require specific structural and frequency adaptations.
Innovation Solution
An omnidirectional antenna system comprising a wire loop and a single ferrite rod loop, electrically isolated and driven 90 degrees out of phase by a hybrid network, which generates a horizontal magnetic field pattern, allowing for decoupled loop operation and increased bandwidth, enabling effective signal transmission and reception across a wide range of orientations and environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional antenna designs are used, then structural stability and form factor requirements are met, but omnidirectional coverage and signal propagation in obstructed environments are limited
Solution Approach 1:
The antenna is segmented into two independent loop elements (wire loop and ferrite rod loop) that are electrically isolated from each other. Each loop can be tuned independently and driven with independent signals, allowing the antenna to achieve omnidirectional coverage through coordinated operation of the segments while maintaining structural simplicity
Solution Approach 2:
The patent merges two different loop structures (wire loop and ferrite rod loop) into a single antenna system. By combining these distinct elements and driving them 90 degrees out of phase through a hybrid network, the system achieves omnidirectional radiation pattern that neither loop could achieve alone, while keeping each individual loop structurally simple
2Reliability
If line-of-sight transmission is required, then signal quality is maintained, but communication in environments with obstacles (tunnels, buildings) is hindered
Solution Approach 1:
The antenna system is designed to be universally applicable in both line-of-sight and non-line-of-sight environments. The omnidirectional radiation pattern allows the antenna to function effectively whether obstacles are present or absent, eliminating the need for different antenna designs for different environmental conditions and maintaining signal quality across diverse settings
3Productivity
If bandwidth is increased through decoupled loop operation, then frequency range is expanded, but electrical isolation between loops must be maintained
Solution Approach 1:
A hybrid network serves as an intermediary between the two loop elements, providing the necessary electrical isolation while enabling coordinated operation. The hybrid network allows each loop to be driven with independent signals 90 degrees out of phase, achieving broadband omnidirectional radiation without direct electrical coupling between the loops that would compromise bandwidth
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
The system provides reliable and constant bandwidth omnidirectional coverage, maintaining signal quality regardless of orientation or impedance changes, facilitating communication in challenging environments like tunnels and mines, and allowing for flexible deployment and use in various subterranean applications.
Implementation Method 1
an antenna having a wire loop and a single ferrite rod loop... The plurality of windings may be distributed across a majority of the length of the ferrite rod
Implementation Method 2
The wire loop and the single ferrite rod loop may be substantially electrically isolated from each other through the hybrid network
Data Source
AI summary
An omnidirectional antenna system. Implementations may include an antenna having a wire loop and a single ferrite rod loop. The single ferrite rod loop may be oriented substantially parallel to a plane formed by the wire loop. The single ferrite rod loop may include a plurality of windings and a ferrite rod having a length and two ends. The two ends of the ferrite rod may be substantially centered relative to the wire loop. The plurality of windings may be distributed across a majority of the length of the ferrite rod.