Switchable Broadband Antenna With Integrated Pattern Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing broadband antennas lack switchable radiation patterns and are difficult to integrate and manufacture, failing to meet the requirements of modern wireless communications that demand flexibility and ease of integration.
Innovation Solution
A switchable broadband antenna design featuring four antenna paths with matching, divider, and control circuits, utilizing dipole antenna elements and electronically controllable impedances to adjust radiation patterns, enabling broadband performance across 4-7 GHz and adaptive pattern switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed radiation pattern antenna is used, then the antenna structure is simple, but the adaptability to different applications is poor
Solution Approach 1:
The patent implements a switchable radiation pattern antenna where the radiation pattern can be dynamically changed by switching between different antenna paths. The antenna system includes multiple antenna elements that can be selectively activated through switching circuits, allowing the radiation pattern to adapt to different application requirements while maintaining a relatively simple overall structure.
2Adaptability or versatility
If multiple separate antennas are used to achieve different radiation patterns, then the radiation pattern versatility is improved, but the device complexity and integration difficulty increase
Solution Approach 1:
The patent combines multiple antenna elements into a single integrated antenna structure. Instead of using separate physical antennas for different radiation patterns, the invention integrates multiple antenna paths within one antenna device, allowing different radiation patterns to be achieved by switching between the integrated paths. This reduces the overall number of antennas needed while maintaining pattern versatility.
Solution Approach 2:
The patent creates a universal antenna structure that can perform multiple functions by switching between different antenna paths. The single antenna device is designed to provide various radiation patterns and polarization modes, making it suitable for multiple applications without requiring separate specialized antennas for each function.
3Ease of manufacture
If traditional broadband antenna designs are used, then the manufacturing is straightforward, but the ease of integration into devices is limited
Solution Approach 1:
The patent segments the antenna system into modular components including antenna elements, matching circuits, and switching circuits. This segmentation allows for standardized manufacturing of individual modules that can be easily integrated into different devices. The modular design maintains manufacturing simplicity while significantly improving ease of integration compared to traditional monolithic antenna designs.
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 antenna provides adjustable radiation patterns, high diversity, and ease of integration, facilitating operation and maintenance, and supports diverse applications with high polarization and spatial diversity.
Implementation Method 1
two dipole antenna elements are arranged in a first polarization direction, and the further two dipole antenna elements are arranged in a second polarization direction aligned normally to the first polarization direction
Implementation Method 2
the control circuit has two electronically controllable impedances for which, in each case, at least two predetermined reflection factors can be set
Data Source
AI summary
A switchable broadband antenna includes an antenna feed point for feeding in an input signal and further includes four antenna paths connected in parallel with respect to the antenna feed point, wherein each of the four antenna paths include a matching circuit, a divider circuit, a control circuit and a dipole antenna element, where in each case two dipole antenna elements are arranged in a first polarization direction, the respective divider circuit has two divider lines between an input point and two output points, the control circuit has two electronically controllable impedances, and where the two electronically controllable impedances are each arranged in opposite directions.