Antenna Radiator With Frequency Reconfiguration Module

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing mobile phone antennas face challenges in miniaturization, multi-band functionality, and reliability due to complex structures and frequency reconfiguration issues, often resulting in incomplete frequency coverage and structural abnormalities.

Innovation Solution

The design incorporates an antenna radiating sheet with a first and second inverted F antenna, connected via slots and ground sheets, along with an antenna frequency reconfiguration module on a circuit board, allowing for switching between ground sheets to achieve full frequency band coverage, simplifying the structure and manufacturing process while ensuring high radiation efficiency and small volume.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the antenna frequency reconfiguration module is disposed on the antenna radiating body, then frequency reconfiguration is achieved, but the structure becomes complicated and the antenna cannot be formed integrally

Engineering Contradiction:

Improvefrequency reconfiguration capabilityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the antenna system into two separate modules: the antenna radiating body and the frequency reconfiguration module. The reconfiguration module is disposed on the circuit board rather than integrated into the radiating body, allowing the antenna to be formed integrally while maintaining frequency reconfiguration capability through separate control circuits.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the antenna frequency reconfiguration module is disposed on the antenna radiating body, then frequency reconfiguration is achieved, but the preparing process becomes complicated

Engineering Contradiction:

Improvefrequency reconfiguration capabilityVSAvoidpreparing process simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent separates the frequency reconfiguration module from the antenna radiating body, placing it on the circuit board instead. This segmentation allows the antenna to be manufactured as a single integrated component while the reconfiguration function is implemented through separate circuit board assembly, simplifying the overall preparing process.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If the antenna uses a complex structure with multiple components, then frequency coverage can be expanded, but the antenna becomes more prone to abnormalities due to pin diode and blocking capacitor stoppage

Engineering Contradiction:

Improvefrequency band coverageVSAvoidantenna performance reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent designs the frequency reconfiguration module with protective measures and alternative pathways to prevent complete failure. By distributing the reconfiguration function across multiple control circuits on the circuit board rather than relying on a single complex integrated module, the system provides redundancy that cushions against the failure of individual components like pin diodes or blocking capacitors.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Volume of moving object

If the antenna is miniaturized for mobile phones, then the volume is reduced, but the frequency band coverage becomes narrower

Engineering Contradiction:

Improveantenna volumeVSAvoidfrequency band coverage

Core Design Contradiction:

Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic frequency reconfiguration capability that allows the antenna to adapt its electrical characteristics through control circuits. This enables a compact physical structure to achieve multiple frequency band coverages by dynamically adjusting the antenna's electrical length and impedance through the frequency reconfiguration module disposed on the circuit board.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10109926B2Antenna radiator, antenna and mobile terminal

Publication Date: 2018.10.23 BYD CO LTD

AI summary

An antenna comprises: a circuit board; an antenna radiator, wherein the antenna radiator is provided with a first gap, a second gap, a first grounding piece, a second grounding piece and a feed piece, the first gap and the second gap forming a first inverted-F antenna connected to the first grounding piece and a second inverted-F antenna connected to the second grounding piece on the antenna radiator, and the feed piece being respectively connected to the first inverted-F antenna and the second inverted-F antenna; and an antenna frequency reconstruction system, wherein the antenna frequency reconstruction system is provided on the circuit board, the antenna frequency reconstruction system is respectively connected to the first grounding piece and the second grounding piece and is grounded, and the antenna frequency reconstruction system switches one of the first grounding piece and the second grounding piece to be grounded. Also provided are an antenna radiator and a mobile terminal.