117 citations · 448 across the 11 of their papers we have counts for
11 papers
Visualization of Acoustic Power Flow in Suspended Thin-film Lithium Niobate Phononic Devices
Daehun Lee, Shawn Meyer, Songbin Gong +2
We report direct visualization of gigahertz-frequency acoustic waves in lithium niobate phononic circuits. Primary propagation parameters, such as the power flow angle (PFA) and pr…
A Laterally Vibrating Lithium Niobate MEMS Resonator Array Operating at 500°C in Air
Savannah R. Benbrook, Caitlin A. Chapin, Ruochen Lu +3
This paper is the first report of the high-temperature characteristics of a laterally vibrating piezoelectric lithium niobate (LiNbO) MEMS resonator array up to 500°C in air.…
5-GHz Antisymmetric Mode Acoustic Delay Lines in Lithium Niobate Thin Film
Ruochen Lu, Yansong Yang, Ming-Huang Li +2
We present the first group of acoustic delay lines (ADLs) at 5 GHz, using the first-order antisymmetric (A1) mode in Z-cut lithium niobate thin films. The demonstrated ADLs signifi…
High performance fully etched isotropic microring resonators in thin-film lithium niobate on insulator platform
Meisam Bahadori, Yansong Yang, Lynford L. Goddard +1
We present our design, fabrication, and experimental results for very high-performance isotropic microring resonators with small radii (~ 30 μm) based on single-mode strip waveguid…
Acoustically Driven and Modulation Inducible Radiating Elements
Ahmed E. Hassanien, Michael Breen, Ming-Huang Li +1
The low propagation loss of electromagnetic radiation below 1 MHz offers significant opportunities for low power, long range communication systems to meet growing demands for IoT a…
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 300-500 MHz Tunable Oscillator Exploiting Ten Overtones in Single Lithium Niobate Resonator
Ali Kourani, Ruochen Lu, Anming Gao +1
This paper presents the first voltage-controlled MEMS oscillator (VCMO) based on a Lithium Niobate (LiNbO3) lateral overtone bulk acoustic resonator (LOBAR). The VCMO consists of a…
Toward Ka Band Acoustics: Lithium Niobate Asymmetrical Mode Piezoelectric MEMS Resonators
Yansong Yang, Ruochen Lu, Tomas Manzaneque +1
This work presents a new class of micro-electro-mechanical system (MEMS) resonators toward Ka band (26.5-40GHz) for fifth-generation (5G) wireless communication. Resonant frequenci…
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…