Multi-Axial Antenna Package for Wide-Coverage Display Links
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Solution Overview
Problem
Existing antenna designs for image display devices face challenges in achieving high-frequency communication with sufficient coverage and reliability due to increased driving frequency, signal loss, and limited space, especially as devices become thinner and display areas expand.
Innovation Solution
An antenna package is developed with a multi-axial transmission/reception system, integrating multiple antenna units with a single antenna driving integrated circuit chip, utilizing high-frequency connectors and a via structure for reduced signal loss and improved radiation performance, and includes a flexible printed circuit board and a rigid printed circuit board for efficient signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the driving frequency of the antenna is increased to implement high-frequency communication, then the communication capability is improved, but the receiving coverage is relatively decreased and signal loss increases
Solution Approach 1:
The antenna system is divided into multiple antenna units (first antenna unit and second antenna unit) that operate at different frequencies. The first antenna unit handles high-frequency signals while the second antenna unit handles low-frequency signals, allowing the system to segment the frequency spectrum and maintain both high-frequency communication capability and wide low-frequency coverage.
Solution Approach 2:
The antenna package is designed to perform multiple functions by integrating antenna units with different frequency characteristics. A single antenna package can simultaneously support high-frequency communication (via first antenna unit) and low-frequency wide-coverage communication (via second antenna unit), making the system universally applicable across multiple frequency bands.
2Volume of moving object
If the image display device becomes thinner and display area increases, then the device portability is improved, but the space for accommodating the antenna is decreased
Solution Approach 1:
The antenna units are integrated onto the circuit board in a planar configuration, utilizing the surface area of the circuit board rather than requiring additional three-dimensional space. The first and second antenna units are arranged on the same circuit board plane, allowing the antenna system to fit within the thin profile of the display device while maintaining adequate antenna area for effective radiation.
3Device complexity
If multiple antenna units are integrated with a single circuit board, then the device complexity is reduced, but the signal transmission reliability may be affected
Solution Approach 1:
An antenna driving integrated circuit chip is introduced as an intermediary component mounted on the circuit board. This IC chip serves as a mediator that manages signal transmission to and from multiple antenna units, providing signal processing, impedance matching, and isolation functions that maintain signal transmission reliability while enabling multiple antenna units to be integrated on a single circuit board.
Data Source
AI summary
An antenna package according to an embodiment of the present disclosure includes a first antenna device including a first antenna unit, a first circuit board electrically connected to the first antenna unit, a second circuit board electrically connected to the first circuit board, a second antenna unit integrated with the second circuit board, and an antenna driving integrated circuit chip mounted on the second circuit board and electrically connected to the first antenna unit and the second antenna unit. Multi-axial radiation is implemented using the antenna package with high efficiency and reliability.