3D Loop Antenna Structure for Edge-Board Gain and Bandwidth
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Solution Overview
Problem
Dipole antenna type conductive patterns in next-generation wireless communication systems, when not positioned at the edge of a board, suffer from reduced bandwidth due to obstruction by the board surface, leading to decreased antenna gain and bandwidth.
Innovation Solution
A loop type antenna is designed to be positioned at the edge of a board, utilizing conductive patterns on multiple insulating layers to enhance radiation characteristics, gain, and bandwidth by minimizing interference from the board surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dipole antenna type conductive patterns are disposed on a board at fixed intervals, then antenna array structure is formed for next-generation wireless communication, but antenna gain is obstructed by board surface and bandwidth is reduced
Solution Approach 1:
The patent transitions from conventional planar dipole antenna patterns to a three-dimensional loop antenna structure that extends vertically from the board surface. The loop antenna includes conductive patterns on multiple layers (first conductive pattern on first insulating layer, second conductive pattern on second insulating layer) connected by vias, creating a vertical dimension that eliminates board surface obstruction and improves radiation characteristics.
Solution Approach 2:
The loop antenna structure embeds multiple conductive patterns within a stacked configuration of insulating layers. The first and second conductive patterns are nested between different insulating layers, with vias penetrating through the layers to electrically connect them, forming a compact three-dimensional loop structure that optimizes space utilization while improving performance.
2Ease of manufacture
If conductive patterns are positioned away from board edge for production reasons, then manufacturing is easier, but radiation characteristics are degraded due to board surface obstruction
Solution Approach 1:
The loop antenna utilizes the vertical dimension by extending conductive patterns across multiple insulating layers stacked perpendicular to the board surface. This three-dimensional configuration allows the antenna to achieve optimal radiation characteristics without requiring edge positioning, as the vertical structure naturally clears the board surface obstruction zone.
Solution Approach 2:
Insulating layers serve as intermediaries that separate and position the first and second conductive patterns at different heights above the board surface. The vias act as connecting intermediaries that electrically join these patterns while maintaining the vertical spacing, enabling the antenna to achieve optimal radiation characteristics without edge positioning.
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 loop type antenna improves radiation performance and increases gain and bandwidth by positioning the conductive patterns in the edge region of the board, reducing interference and optimizing frequency range from 3 GHz to 100 GHz.
Implementation Method 1
a loop type antenna, radiation characteristics of which can be improved at an end of a board... improves radiation performance and increases gain and bandwidth by positioning the conductive patterns in the edge region of the board, reducing interference and optimizing frequency range from 3 GHz to 100 GHz
Data Source
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AI summary
According to various embodiments, an electronic device comprises: a first plate; a second plate facing the opposite direction of the first plate; a housing including a lateral member for encompassing the space between the first plate and the second plate; and an antenna structure, wherein the antenna structure includes: a plurality of insulating layers arranged in a stacked manner so as to be parallel to the first plate; a loop antenna array formed by the insulating layers and/or by the peripheries of the insulating layers; and a wireless communication circuit electrically connected to loop antennas, and configured to transmit and receive a first signal having a first frequency of a range of 3 GHz to 100 GHz.