Ground Radiation Antenna Using Capacitive Element

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Solution Overview

Problem

Existing ground radiation antennas require a separate radiating element with a complex structure, leading to increased size and complexity, which complicates the fabrication process and reduces radiating performance.

Innovation Solution

A radiator-forming circuit using a capacitive element that replaces the complex radiating element, maximizing radiating performance while maintaining a simple structure, by efficiently utilizing the inductance of the ground.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate radiating element is added to the ground radiation antenna, then the radiating performance is improved, but the device complexity and size increase

Engineering Contradiction:
Improveradiating performanceVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the radiating element function with the ground plane by creating a complementary ground structure that works in conjunction with the ground plane. The radiating element is integrated into the ground structure itself, eliminating the need for separate complex radiating elements while maintaining good radiating performance through the complementary ground configuration.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a separate radiating element is added to the ground radiation antenna, then the radiating performance is improved, but the volume increases

Engineering Contradiction:
Improveradiating performanceVSAvoidantenna volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The radiating function is merged with the ground structure by using the complementary ground configuration. The radiating element is formed as part of the ground structure itself rather than as a separate component, thereby improving radiating performance without increasing the overall antenna volume.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a separate radiating element is added to the ground radiation antenna, then the radiating performance is improved, but the fabrication process becomes more complex

Engineering Contradiction:
Improveradiating performanceVSAvoidfabrication process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The radiating element and ground structure are merged into a single integrated structure that can be fabricated using standard PCB techniques. The complementary ground configuration is formed as part of the same manufacturing process as the circuit board, eliminating the need for separate fabrication steps and reducing overall manufacturing complexity while achieving good radiating performance.

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 solution results in a smaller, cost-effective antenna with broad-band and multi-band capabilities and excellent radiation performance, simplifying the fabrication process and reducing size.

Implementation Method 1

a radiator-forming circuit using a capacitive element that can replace the radiating element having a complex structure

Methodology Applied
Scientific EffectCapacitance: Capacitance

Implementation Method 2

the ground radiation antenna uses the ground to radiate RF signals

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS8604998B2Ground radiation antenna
Publication Date: 2013.12.10 RADINA
  • US8604998B2 patent drawing
  • US8604998B2 patent drawing
  • US8604998B2 patent drawing

AI summary

A ground radiation antenna is disclosed. Herein, the ground radiation antenna provides a radiator-forming circuit, which is formed to have a simple structure using a capacitive element, as well as a feeding circuit suitable for the provided radiator-forming circuit. Thus, the structure of the antenna becomes simpler and the size of the antenna becomes smaller. Accordingly, the fabrication process of the antenna is simplified, thereby largely reducing the fabrication cost.