Display Panel Antenna Layout for Wideband RF Impedance Matching
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Solution Overview
Problem
As electronic devices become thinner and more miniaturized, there is a challenge in accommodating multiple electronic modules while maintaining effective wideband or multiband communication capabilities within limited space, particularly in ensuring efficient signal transmission and reception across various frequency bands.
Innovation Solution
The design incorporates a radio frequency device with a specific antenna configuration that includes a first antenna portion, intermediate antenna portions, and a second antenna portion, arranged in a particular pattern to achieve impedance matching and efficient signal radiation through both traveling wave and standing wave resonances, allowing for wideband or multiband communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the antenna structure is simplified to reduce device complexity, then ease of manufacture is improved, but communication efficiency and signal transmission quality deteriorate
Solution Approach 1:
The antenna is divided into multiple antenna portions (first antenna portion, second antenna portion, and intermediate antenna portions) arranged in a specific configuration. Each portion serves a specific function in the frequency bands, allowing the antenna to maintain high communication efficiency while being manufacturable using standard processes.
Solution Approach 2:
Different antenna portions are designed with different line widths (first width for the first antenna portion, second width for the second antenna portion) to optimize performance for different frequency bands. This local differentiation allows each portion to be tailored for its specific operational requirements while maintaining overall manufacturing feasibility.
2Adaptability or versatility
If the antenna structure is made more complex to improve wideband communication capability, then adaptability is improved, but device complexity increases
Solution Approach 1:
The antenna structure is designed to support multiple frequency bands (first frequency band and second frequency band) using a single integrated antenna system. The different antenna portions and intermediate portions work together to provide universal coverage across wideband frequencies, eliminating the need for separate antennas for different bands.
Solution Approach 2:
The antenna design utilizes variations in line width parameters (first width and second width) and spatial arrangement to achieve different resonant frequencies and impedance characteristics. By changing these physical parameters, the antenna can adapt to operate across multiple frequency bands without requiring fundamentally different structures.
3Power
If the line width of the second antenna portion is increased to improve signal radiation, then antenna gain is improved, but manufacturing precision requirements increase
Solution Approach 1:
The second antenna portion is designed with a larger line width (second width greater than first width) to enhance signal radiation and antenna gain for the second frequency band. This parameter change directly improves the power radiating capability while remaining within manufacturable dimensions using standard PCB or antenna fabrication processes.
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 configuration enhances communication efficiency by enabling the device to transmit and receive signals across a wide frequency range, including 26.5 GHz to 29.5 GHz, with increased antenna gain and directionality, thereby extending transmission distance and reducing signal loss.
Implementation Method 1
The signal is radiated through a traveling wave resonance and a standing wave resonance
Implementation Method 2
The signal is radiated through a traveling wave resonance and a standing wave resonance
Data Source
AI summary
An electronic device includes a display panel including an antenna. The antenna includes a first antenna portion. A second antenna portion is spaced apart from the first antenna portion in a first direction. A plurality of intermediate antenna portions is disposed between the first antenna portion and the second antenna portion and is electrically connected to the first antenna portion and the second antenna portion. The first antenna portion includes a first pattern portion and a first line portion having a first width in a second direction crossing the first direction. The second antenna portion includes a second pattern portion and a second line portion having a second width in the second direction that is larger than the first width.