4 papers
4.5 GHz Lithium Niobate MEMS Filters with 10% Fractional Bandwidth for 5G Front-ends
Yansong Yang, Ruochen Lu, Liuqing Gao +1
This paper presents a new class of micro-electro-mechanical system (MEMS) C-band filters for 5G front-ends. The filter is comprised of resonators based on the first-order asymmetri…
A Radio Frequency Non-reciprocal Network Based on Switched Acoustic Delay Lines
Ruochen Lu, Tomas Manzaneque, Yansong Yang +3
This work demonstrates the first non-reciprocal network based on switched low-loss acoustic delay lines. The 4-port circulator is built upon a recently reported frequency-independe…
A Radio Frequency Non-reciprocal Network Based on Switched Low-loss Acoustic Delay Lines
Ruochen Lu, Tomas Manzaneque, Yansong Yang +3
This work demonstrates the first non-reciprocal network based on switched low-loss acoustic delay lines. A 21 dB non-reciprocal contrast between insertion loss (IL=6.7 dB) and isol…
Frequency Independent Framework for Synthesis of Programmable Non-reciprocal Networks
Ruochen Lu, John Krol, Liuqing Gao +1
Passive and linear nonreciprocal networks at microwave frequencies hold great promises in enabling new front-end architectures for wireless communication systems. Their nonreciproc…