Dual-Radiator Antenna Coupling for Compact Multi-Band Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing antenna designs face challenges in efficiently supporting multiple communication modes within a limited space, leading to increased size and complexity, which hinders the miniaturization of electronic devices.
Innovation Solution
The implementation of a dual-radiator antenna system with a coupling gap and filter circuits, allowing separate and simultaneous operation of multiple frequency bands by utilizing two radiators and filter circuits to minimize space occupation while supporting diverse communication functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication modes are supported using separate antenna apparatuses, then communication functionality is improved, but device size and complexity increase
Solution Approach 1:
The patent combines multiple antenna apparatuses into a single integrated antenna system where multiple radiating elements share a common grounding structure. This merging approach allows the device to support multiple communication modes (cellular, Wi-Fi, GPS, Bluetooth, NFC) through one unified antenna system rather than separate apparatuses, thereby improving communication functionality while reducing overall device complexity and size.
Solution Approach 2:
The antenna system is designed with multiple radiating elements that can operate across different frequency bands, enabling a single antenna apparatus to perform multiple communication functions. The first and second radiating elements can simultaneously or separately support various communication modes including cellular network communication, Wi-Fi, GPS, Bluetooth, and NFC, making the antenna system universal and multi-functional.
2Adaptability or versatility
If multiple antenna apparatuses are used to support diverse communication functions, then communication versatility is improved, but space occupation increases
Solution Approach 1:
Multiple antenna functions are merged into a single compact antenna apparatus with shared grounding structures. The first and second radiating elements are integrated with common first and second grounding points, eliminating the need for separate grounding structures for each communication mode. This merging significantly reduces the total space required while maintaining support for diverse communication functions.
Solution Approach 2:
The antenna system utilizes spatial arrangement in multiple dimensions, with radiating elements positioned at different locations and orientations. The first radiating element is positioned above the first grounding point, and the second radiating element is positioned above the second grounding point, creating a three-dimensional configuration that maximizes space utilization and enables multiple communication functions within a compact footprint.
3Volume of moving object
If a single antenna system is used to reduce size, then device miniaturization is improved, but signal isolation between frequency bands deteriorates
Solution Approach 1:
The antenna system is segmented into distinct radiating elements (first and second radiating elements) with separate feeding mechanisms. Each radiating element can be independently controlled and optimized for specific frequency bands. This segmentation allows for better signal isolation between different communication modes while maintaining a compact integrated structure, as each element can be tuned to operate at different frequencies with minimal interference.
Solution Approach 2:
The grounding structure acts as an intermediary that provides electrical isolation between different radiating elements and frequency bands. The first and second grounding points serve as reference planes that help isolate signals from different communication modes, reducing mutual interference while allowing the radiating elements to be positioned in close proximity for compact device design.
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 dual-radiator antenna system effectively transmits signals across multiple frequency bands, reducing space requirements and enhancing the miniaturization of electronic devices while maintaining good radiation performance and isolation between feed sources.
Implementation Method 1
a first feed source configured to provide a first excitation signal to excite the first radiating element to generate resonance in a first frequency band and transmit the resonance
Implementation Method 2
excite the first radiating element to generate resonance in a first frequency band
Implementation Method 3
The first radiating element and the second radiating element define a coupling gap therebetween
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An antenna apparatus and an electronic device are provided. The antenna apparatus includes a first feed source, a second feed source, a first filter circuit, a first radiator, and a second radiator. The first filter circuit is coupled between the first feed source and the first radiator. A coupling gap is defined the second radiator and the first radiator. The first filter circuit is an open circuit for a second excitation signal provided by the second feed source. The second excitation signal is coupled with the first radiator to excite the first radiator and the second radiator to generate resonance in a second frequency band.