Parallel Resonator Antenna Layout for Band Interference Isolation

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Solution Overview

Problem

The characteristics of patch antennas in existing AM/FM antenna configurations are significantly influenced by the configuration of other elements, leading to potential interference and performance issues.

Innovation Solution

An antenna design comprising a first element with parallel resonators configured to resonate in a specific frequency band and a second element connected to the first, operating in a different frequency band, with the elements being connected via external connecting portions to minimize interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If an AM/FM antenna element is located near a patch antenna, then space utilization is improved, but the characteristics of the patch antenna are greatly influenced

Engineering Contradiction:
Improvespace utilizationVSAvoidantenna characteristics
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The first element is divided into multiple parallel resonators that are connected in parallel, creating segmented structures that reduce mutual coupling effects. Each resonator operates independently at different frequency bands, allowing the AM/FM antenna to function without significantly affecting the patch antenna's characteristics while still utilizing the same space.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different structural configurations to different parts of the antenna system. The parallel resonators are specifically designed with particular geometries and connection methods tailored for AM/FM frequency ranges, while the patch antenna maintains its own optimized structure for satellite frequencies, allowing each component to have local quality optimized for its specific function.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If multiple antenna elements operate in different frequency bands, then multi-functionality is improved, but interference between frequency bands occurs

Engineering Contradiction:
Improvemulti-functionalityVSAvoidinterference
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

By segmenting the first element into multiple parallel resonators, each tuned to different frequency bands, the patent enables multi-functionality while reducing interference. The parallel configuration isolates the electromagnetic fields of different frequency bands, allowing simultaneous operation of AM, FM, and satellite communication functions without significant mutual interference.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The parallel resonator structure acts as an intermediary that couples different frequency bands while maintaining isolation. The specific connection methodology and geometric arrangement of the resonators serve as a mediator that allows energy transfer at intended frequencies while blocking or minimizing interference between different frequency bands.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This design effectively suppresses the influence on the characteristics of another antenna, improving performance and reducing interference between different frequency bands.

Implementation Method 1

a first element including a plurality of parallel resonators configured to resonate in a first frequency band

Methodology Applied
Scientific EffectResonance: Resonance

Data Source

PatentUS20240021997A1antenna
Publication Date: 2024.01.18 YOKOWO CO LTD
  • US20240021997A1 patent drawing
  • US20240021997A1 patent drawing
  • US20240021997A1 patent drawing

AI summary

An antenna comprising: a first element including a plurality of parallel resonators configured to resonate in a first frequency band, and at least one first connecting portion configured to connect the parallel resonators immediately adjacent to each other in the plurality of the parallel resonators; and a second element configured to be connected to the first element, wherein the first element and the second element operate with radio waves in a second frequency band different from the first frequency band.