Waveguide Antenna Substrate for Low-Loss Sub-THz Signal Routing
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Solution Overview
Problem
Conventional antenna-in-package (AiP) technology experiences significant signal loss at sub-THz frequencies due to physical transmission lines, which are inadequate for high-frequency wireless communication needs.
Innovation Solution
An antenna substrate with a waveguide structure comprising a circuit structure, waveguide cavity, and conductive vias forms a waveguide channel to transmit signals directly to an antenna layer, minimizing signal loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If physical transmission lines are used to connect the radio frequency chip to the antenna feed point in conventional AiP technology, then the antenna structure can be integrated into a single package, but signal loss increases greatly at sub-THz frequencies
Solution Approach 1:
The patent introduces a waveguide structure as an intermediary component between the RF chip and the antenna feed point. This waveguide structure includes a waveguide cavity with specific dimensions and conductive elements that enable efficient signal transmission at sub-THz frequencies, thereby reducing signal loss while maintaining the integrated package structure.
Solution Approach 2:
The patent changes the transmission parameter by transitioning from conventional microstrip or coaxial transmission lines to a waveguide transmission mode. The waveguide cavity dimensions are specifically designed to support sub-THz frequency operation, with the cavity size and conductive element positioning optimized to minimize signal loss at these high frequencies.
2Speed
If the transmission frequency is increased to meet larger bandwidth requirements for 6G communication, then wireless transmission capacity improves, but signal loss in conventional transmission lines increases
Solution Approach 1:
The waveguide structure serves as a specialized intermediary transmission path optimized for high-frequency operation. The waveguide cavity and its conductive elements are designed to efficiently guide sub-THz signals from the RF chip to the antenna, enabling high-speed communication while minimizing the signal loss that plagues conventional transmission lines at these frequencies.
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 waveguide structure effectively transmits signal energy to the antenna layer, reducing signal loss at high frequencies and enhancing communication efficiency.
Implementation Method 1
a waveguide structure bonded to the circuit structure; and an antenna module provided on the wiring module and comprising an antenna layer, allowing a signal to be transmitted to the antenna layer through the waveguide structure
Data Source
AI summary
Provided are an antenna substrate and an electronic device. An electronic device includes an antenna substrate and an electronic component provided on the antenna substrate, wherein the antenna substrate includes a circuit module and an antenna module. The circuit module has a waveguide structure, and the antenna module has an antenna layer, whereby the electronic component transmits signals to the antenna layer through the waveguide structure to avoid signal transmission loss at high frequencies.