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arXiv · 1906.05969

Mechanically Modulated Microwave Circulator

Mustafa Mert Torunbalci·Suresh Sridaran·Richard Ruby·Sunil Bhave
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Abstract

This work presents a differential FBAR circulator that uses the bending mode to mechanically modulate the FBAR mode without any varactors or switches. The differential FBAR circulator achieves a 61.5 dB isolation (IX) with an insertion loss (IL) of 1.8 dB at 2.68 GHz, demonstrating the first MEMS-only circulator. The isolation bandwidth at -25 dB is 4.7 MHz and power handling of the circulator is limited by the FBARs to +34 dBm.

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Mustafa Mert Torunbalci, Suresh Sridaran, Richard Ruby, Sunil Bhave. 2019-06-14. Mechanically Modulated Microwave Circulator. https://doi.org/10.1109/transducers.2019.8808670

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