Display Antenna Structure With Air Layer for Lower Signal Loss
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Solution Overview
Problem
The challenge of implementing high-frequency and broadband signal transmission in limited spaces within display devices is exacerbated by signal loss and interference due to flexible printed circuit boards and unintentional radiation, which degrades antenna efficiency and reliability.
Innovation Solution
An antenna structure is designed with an air layer between the antenna device and an insulating layer, partially covering the antenna unit, to reduce signal loss and improve radiation efficiency, while maintaining bonding stability and design freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an intermediate circuit structure such as FPCB is used to electrically connect the driving IC chip and the antenna, then electrical connection is achieved, but additional signal loss and signal disturbance occur
Solution Approach 1:
The patent extracts and removes the intermediate FPCB structure from the signal path between the driving IC chip and the antenna. By directly bonding the antenna to the circuit board, the harmful intermediate structure is eliminated, thereby reducing signal loss and disturbance while maintaining electrical connection.
2Speed
If the driving frequency of the antenna is increased to achieve high-frequency communication, then communication capability is improved, but signal loss is increased
Solution Approach 1:
The patent addresses the inherent signal loss problem at high frequencies by introducing an air layer structure. This air layer reduces dielectric loss and parasitic effects that are exacerbated at high frequencies, thereby converting the harmful high-frequency signal loss into improved signal transmission through optimized electromagnetic field distribution.
3Adaptability or versatility
If the transmission path length is increased to achieve broadband coverage, then frequency coverage is improved, but signal loss is further increased
Solution Approach 1:
The patent applies local quality optimization by introducing air layers at specific locations around the antenna structure. Rather than uniformly modifying the entire transmission path, the air layers are strategically positioned to locally reduce dielectric loss and improve impedance control, thereby reducing signal loss across broadband frequencies without requiring increased transmission path length.
4Use of energy by moving object
If power is supplied through wiring to the antenna from the driving integrated circuit chip, then power distribution is achieved, but unintentional radiation occurs and radiation efficiency is degraded
Solution Approach 1:
The patent introduces an air layer as an intermediary between the antenna and the surrounding dielectric structures. This air layer acts as a mediator that reduces parasitic coupling and unintentional radiation from power distribution wiring, thereby improving the efficiency of intentional radiation while maintaining power distribution 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
The air layer reduces signal loss and enhances antenna gain, particularly in high-frequency bands, improving operational reliability and radiation properties without visual interference.
Implementation Method 1
an air layer formed between the antenna device and the insulating layer to partially cover the antenna unit
Data Source
AI summary
An antenna structure according to an embodiment includes an antenna device including an antenna unit, a circuit board electrically connected to the antenna unit, an insulating layer covering the antenna device and a portion of the circuit board, and an air layer formed between the antenna device and the insulating layer to partially cover the antenna unit.