Promising design of an inline filter for multiplexing systems

Abstract

This work explores a prospective design of an inline bandpass filter operating in the Ka-band, aimed at improving performance in modern multiplexing systems. The concept is based on an 8-resonator structure optimized for low insertion loss and high selectivity within a compact form factor. The target application includes integration into high-frequency transceiver front-ends where spectral efficiency and signal isolation are critical. The proposed architecture considers advanced coupling schemes and tuning strategies to support scalable and reconfigurable implementations. Preliminary full-wave simulations indicate favorable performance characteristics, including stable passband behavior and reduced out-of-band interference, suggesting its suitability for densely packed RF environments. Emphasis is placed on compatibility with standard manufacturing processes and minimal footprint, which is essential for inline deployment in multi-channel systems. While physical prototyping and experimental validation are currently in progress, the initial results provide a promising foundation for further development. The study also outlines key challenges in design optimization and thermal stability, setting the stage for future enhancements. This research contributes to the broader field of high-frequency filter design, offering insights that could inform next-generation front-end architectures in both terrestrial and satellite communication systems.

Speaker

Gerasimov Nikita Mikhailovich
Waveguide-based Systems LLC
Russia

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