RF Module Layout Segmentation for Lower Insertion Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The layout and positioning of RF chips and switch chips on a substrate can lead to increased substrate area and affect the quality of RF signal output, particularly due to unreasonable layout and distance configurations, resulting in higher insertion loss and interference.
Innovation Solution
The RF module design includes separate layout areas for RF chips and switch chips on the substrate, with power amplifiers for different frequency bands, and a matching circuit with a balun and capacitor configuration to reduce signal transmission distance and improve output quality, while also optimizing the substrate layout for compactness and efficient power supply management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If RF chips and switch chips are arranged on the substrate with reasonable layout, then the substrate area is reduced, but the signal transmission distance increases causing higher insertion loss
Solution Approach 1:
The substrate is divided into a first layout area and a second layout area, with RF chips arranged in the first area and switch chips arranged in the second area. This spatial segmentation allows compact arrangement while maintaining reasonable signal transmission distances through optimized positioning within each functional zone.
2Area of stationary object
If RF chips and switch chips are arranged close to each other, then the substrate area is reduced, but interference between components increases
Solution Approach 1:
The substrate is segmented into distinct functional areas: a first layout area for RF chips and a second layout area for switch chips. This spatial separation reduces electromagnetic interference between the two types of components while maintaining overall compactness through optimized area allocation.
Solution Approach 2:
Different regions of the substrate are assigned different functional qualities - the first layout area is optimized for RF signal processing with appropriate impedance control, while the second layout area is optimized for switching functions. This local optimization reduces cross-interference while maintaining system compactness.
3Loss of energy
If signal transmission distance is reduced, then insertion loss is reduced, but the layout becomes more complex
Solution Approach 1:
The substrate layout is segmented into two distinct functional areas with clear boundaries. This segmentation simplifies the overall layout planning by creating modular zones, making it easier to optimize signal paths within each zone while maintaining compact dimensions and reducing insertion loss.
Data Source
AI summary
Disclosed is an RF module. The substrate includes a first layout area and a second layout area. The first RF chip is located in the first layout area, including a first power amplifier and a second power amplifier. The first switch chip is arranged in the first layout area and connected to the output ends of the first and second power amplifier. The second RF chip is arranged in second layout area, including a third power amplifier. The second switch chip is arranged in the second layout area and connected to the output end of the third power amplifier. The RF module shortens the transmission distance of RF signals between the first RF chip and first switch chip and between the second RF chip and second switch chip by arranging components in two areas separately, thus reducing the insertion loss and interference and improving the output quality of RF signals.