Integrated Dipole and Loop Antenna for Dual Band Operation

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Solution Overview

Problem

Existing antenna structures for dual frequency band operations face challenges in integrating multiple antennas within a limited size while maintaining good antenna gain, bandwidth, and isolation, leading to increased hardware requirements and size.

Innovation Solution

The proposed antenna device integrates a first dipole antenna and a second loop shaped antenna, connected via feed lines, allowing for dual band operation without the need for four separate antennas, and includes a monolithic formation of antennas, connectors, and supporters to enhance integration and performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If four separate antennas are used for dual frequency band operation, then signal transception capability is improved, but hardware size and device complexity increase

Engineering Contradiction:

Improvedual frequency band transception capabilityVSAvoidnumber of antennas

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines two antennas (first dipole antenna and second loop-shaped antenna) into a single integrated antenna device. The first dipole antenna handles the first frequency band while the second loop-shaped antenna handles the second frequency band, merging multiple antenna functions into one compact structure that reduces hardware complexity while maintaining dual band capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated antenna device performs multiple functions: the first dipole antenna element operates for the first frequency band while the second loop-shaped antenna element operates for the second frequency band. This multi-functional design allows a single antenna device to replace what would traditionally require multiple separate antennas

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If four separate antennas are used for dual frequency band operation, then signal transception capability is improved, but antenna gain and bandwidth performance deteriorate due to integration difficulties

Engineering Contradiction:

Improvedual frequency band transception capabilityVSAvoidantenna gain and bandwidth

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

By merging the first dipole antenna and second loop-shaped antenna into a single integrated device with shared feeding structures and support elements, the patent achieves compact integration while maintaining the radiation performance of both antenna types across their respective frequency bands

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a three-dimensional integrated structure where the first dipole antenna and second loop-shaped antenna are arranged in different spatial dimensions and orientations. This dimensional arrangement allows both antennas to operate effectively without mutual interference, maintaining good antenna gain and bandwidth for dual band operation

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If four separate antennas are used for dual frequency band operation, then signal transception capability is improved, but hardware size increases excessively

Engineering Contradiction:

Improvedual frequency band transception capabilityVSAvoidantenna device size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent merges multiple antenna functions into a single compact antenna device, significantly reducing the overall hardware volume compared to using four separate antennas. The integrated structure shares common support elements, mounting structures, and spacing mechanisms, achieving space-efficient dual band operation

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The antenna structure employs a nested arrangement where the first dipole antenna and second loop-shaped antenna are positioned in a compact, space-efficient configuration. The antennas are arranged to utilize three-dimensional space effectively, with one antenna structure partially enclosing or surrounding portions of the other, reducing the overall device volume

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS11245188B2Antenna device having a dipole antenna and a loop shaped antenna integrated for improving antenna bandwidth and antenna gain

Publication Date: 2022.02.08 MEDIATEK INC

AI summary

An antenna device includes a first dipole antenna, a second loop shaped antenna, a first feed line and a second feed line. The first dipole antenna operates at a first frequency band. The first dipole antenna includes a first portion and a second portion. The second loop shaped antenna operates at a second frequency band different from the first frequency band. A first terminal of the second loop shaped antennal is coupled to a second terminal of the first portion of the first dipole antenna. A second terminal of the second loop shaped antenna is coupled to a first terminal of the second portion of the first dipole antenna. The first feed line is coupled to the second terminal of the first portion of the first dipole antenna. The second feed line is coupled to the first terminal of the second portion of the first dipole antenna.