Peripheral Electrode Antenna Layout for Orthogonal Radiation

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Solution Overview

Problem

Existing antenna configurations are limited in their ability to radiate radio waves in directions intersecting the normal to the substrate.

Innovation Solution

An antenna device comprising a first substrate with a radiating element and a peripheral electrode connected to a ground electrode, and a second substrate with a ground electrode and ground pad, connected through a conducting member, allowing radio waves to be radiated in directions intersecting the normal to the substrate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional antenna configuration with ground electrode and radiating element on a substrate is used, then radio waves can be radiated in a direction normal to the substrate, but it is not possible to radiate radio waves in a direction intersecting the direction normal to the substrate

Engineering Contradiction:

Improveradiation directionVSAvoidantenna structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a peripheral electrode disposed on or in an opposing surface of the substrate, extending in a direction intersecting the normal direction of the substrate. This adds a dimensional element that enables radio wave radiation in directions intersecting the substrate normal, thereby resolving the contradiction between radiation direction versatility and structural complexity

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The antenna structure is segmented into multiple functional components: ground electrode, radiating element, and peripheral electrode, each serving distinct purposes. The peripheral electrode is further divided into multiple segments in some embodiments, allowing independent optimization of different radiation directions without complicating the overall structure

Inventive Principle:

Principle #1Segmentation

2Power

If the peripheral electrode is extended to improve radiation in intersecting directions, then antenna gain is enhanced, but manufacturing complexity increases

Engineering Contradiction:

Improveantenna gainVSAvoidmanufacturing process

Core Design Contradiction:

PowerVSEase of manufacture

Solution Approach 1:

The peripheral electrode is electrically connected to the ground electrode through a connecting member, merging their functions while maintaining electrical continuity. This integration allows the antenna to achieve enhanced gain through the peripheral electrode's intersecting orientation without requiring separate manufacturing processes for distinct components

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The peripheral electrode serves multiple functions: it acts as a radiating element for intersecting directions, provides additional ground reference, and maintains electrical connection to the ground electrode. This multi-functionality enhances antenna gain without proportionally increasing manufacturing complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enables the antenna device to radiate radio waves in directions orthogonal to the substrate, enhancing antenna gain and reducing costs while maintaining structural integrity and impedance matching.

Implementation Method 1

a radiating element having a flat plate-like shape, the first ground electrode and the radiating element being arranged to face each other in a direction intersecting a direction normal to the second substrate

Methodology Applied

Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

The peripheral electrode and the ground pad are connected to each other through a connecting member having electrical conductivity

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS20260031542A1Antenna device and communication device including same

Publication Date: 2026.01.29 MURATA MFG CO LTD

AI summary

An antenna device includes a first substrate and a second substrate. The first substrate includes a ground electrode having a flat plate-like shape, a radiating element having a flat plate-like shape, and a peripheral electrode electrically connected to the ground electrode. The second substrate includes a first main surface facing the first substrate, a second main surface) opposite to the first main surface, a ground electrode disposed on or in the second main surface), and a ground pad disposed on or in the first main surface). The peripheral electrode and the ground pad are connected to each other.