Antenna Capacitor Structure Broadening Bandwidth

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Solution Overview

Problem

Existing antennas are limited by their narrow band, making them incompatible with multiple wireless communication standards, leading to space inefficiencies and interference when multiple antennas are used in consumer electronic products.

Innovation Solution

An antenna design incorporating a capacitor structure formed by a conductive element, a radiating element, and a grounding element, where the conductive element is positioned apart from the radiating and grounding elements, allowing for a broader band by creating a capacitor structure that enhances frequency compatibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a narrow band antenna is used, then the antenna structure is simple, but the antenna is incompatible with multiple wireless communication standards

Engineering Contradiction:
Improvecompatibility with wireless communication standardsVSAvoidantenna structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent changes the electrical parameters of the antenna by introducing a capacitor structure formed by the conductive element, radiating element, and grounding element. This capacitor structure modifies the impedance characteristics and resonant frequencies of the antenna, enabling it to operate across multiple frequency bands and be compatible with different wireless communication standards without requiring multiple separate antenna structures

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple antennas are configured to support different standards, then compatibility with multiple standards is achieved, but space consumption increases and interference occurs

Engineering Contradiction:
Improvecompatibility with wireless communication standardsVSAvoidspace occupied by antenna system
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent merges the functions of multiple antennas into a single antenna structure by incorporating a capacitor structure that enables multi-band operation. The conductive element, radiating element, and grounding element work together as an integrated system that can support multiple wireless communication standards, eliminating the need for separate antennas and reducing the overall space required

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If multiple antennas are configured to support different standards, then compatibility with multiple standards is achieved, but interference between antennas increases

Engineering Contradiction:
Improvecompatibility with wireless communication standardsVSAvoidinterference between antennas
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

By merging multiple antenna functions into a single integrated structure with a capacitor design, the patent eliminates the harmful interference that occurs between separate antennas. The unified structure ensures proper impedance matching and signal isolation, preventing mutual interference while maintaining compatibility with multiple wireless communication standards

Inventive Principle:
Principle #5Merging (Combining)

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 achieves broader frequency compatibility, eliminating the need for multiple antennas in consumer products, thus reducing space requirements and minimizing interference between them.

Implementation Method 1

The conductive element, the radiating element and the distance therebetween constitute a capacitor structure, which can broaden the band of the antenna

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentUS7843390B2Antenna
Publication Date: 2010.11.30 WISTRON NEWEB CORP
  • US7843390B2 patent drawing
  • US7843390B2 patent drawing
  • US7843390B2 patent drawing

AI summary

An antenna includes a grounding element, a radiating element, an interconnecting element and a conductive element. The interconnecting element connects the radiating element and the grounding element. The conductive element is disposed between the grounding element and the radiating element and apart from the grounding element and the radiating element. Moreover, the conductive element has a feed positioned thereon.