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Fabrication and Characterization of Superconducting Resonators

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Design for SAW Antenna-Plexers with Improved Matching Inductance Circuits.

Min-Yuan Yang¹, Ruey-Beei Wu¹

¹Department of Electrical Engineering and Graduate Institute of Communication Engineering, National Taiwan University, Taipei 10617, Taiwan.

|January 23, 2024

Summary

This study presents novel antenna-plexers for 4G and 5G mobile communications, integrating surface acoustic wave (SAW) technology for enhanced performance in LTE and Wi-Fi bands.

Keywords:

SAW extractor WIFI 6E antenna-plexer diplexer optimization

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Area of Science:

Electrical Engineering
Electromagnetics
Signal Processing

Background:

Carrier aggregation in LTE 4G and 5G necessitates advanced RF front-end components.
Existing antenna-plexer designs face challenges in integrating multiple frequency bands efficiently.

Purpose of the Study:

To design and validate novel antenna-plexers for LTE 4G and 5G carrier aggregation.
To develop a Surface Acoustic Wave (SAW) extractor and an Upper- and Mid-High Band (UHB + MHB) diplexer.

Main Methods:

The SAW extractor integrates bandpass and band-stop filters using modified Butterworth-van Dyke (mBVD) resonators and SAW resonators.
The UHB + MHB diplexer utilizes microwave and SAW filters with a matching inductor, employing frequency response methods.
The design incorporates a SAW interdigital transducer (IDT) structure.

Main Results:

The SAW extractor meets product specifications from 0.7 to 2.7 GHz.
The UHB + MHB diplexer is designed for 2.4 GHz + Wi-Fi 6E applications.
Experimental results show strong agreement with simulation, confirming design feasibility.

Conclusions:

The developed antenna-plexers are feasible and meet performance specifications for 4G and 5G applications.
The integrated SAW extractor and UHB + MHB diplexer offer a viable solution for multi-band RF systems.