Integrated compact duplexer for Tx/Rx SatCom on the move user terminals

Area of Science:

• Electrical Engineering
• Radio Frequency (RF) Engineering
• Telecommunications

Background:

• Satcom-on-the-move terminals require miniaturized RF components.
• Existing duplexer solutions often face challenges with size and performance integration.
• Package-integrated solutions are emerging for advanced RF systems.

Purpose of the Study:

• To design and characterize a novel package-integrated duplexer for K/Ka-band Satcom-on-the-move user terminals.
• To achieve high performance in terms of isolation and insertion loss within a compact form factor.
• To enable seamless integration with RF chips and antenna elements for advanced Antenna Front-End (AFE) systems.

Main Methods:

• Utilized a package stackup design incorporating two dedicated bandpass filters for TX and RX.
• Employed simulation and measurement techniques for comprehensive characterization.
• Focused on achieving broad out-of-band suppression and low reflection coefficient.

Main Results:

• The duplexer demonstrated isolation and insertion loss performance comparable to state-of-the-art solutions.
• Achieved effective out-of-band suppression while maintaining signal integrity.
• Verified performance through both simulation and experimental measurements.

Conclusions:

• The developed package-integrated duplexer is highly suitable for size-constrained Satcom applications.
• Its compact design and performance characteristics facilitate integration into advanced AFE systems.
• This work contributes to the advancement of mobile satellite communication terminal technology.