Characterization of distributed and lumped-element THz MKIDs

2021 ◽  
Author(s):  
Wei-tao Lv ◽  
Liang-si Zhou ◽  
Jing Li ◽  
Zheng Wang ◽  
Sheng-cai Shi
Keyword(s):  
Lumped Element

Fabrication and characterization of all-Nb lumped-element Josephson parametric amplifiers

2021 ◽  
Author(s):  
Hang Xue ◽  
Zhirong Lin ◽  
Wenbing Jiang ◽  
Zhengqi Niu ◽  
Kuang Liu ◽  
...  
Keyword(s):  
Parametric Amplifiers ◽  
Lumped Element ◽  
Fabrication And Characterization

MEMS Pressure Sensor Array for Aeroacoustic Analysis of the Turbulent Boundary Layer

2008 ◽  
Author(s):  
Joshua S. Krause ◽  
Robert D. White ◽  
Mark J. Moeller ◽  
Judith M. Gallman ◽  
Richard De Jong
Keyword(s):  
Pressure Sensor ◽  
Sensor Array ◽  
Single Element ◽  
Lumped Element ◽  
Depth Analysis ◽  
Fluid Damping ◽  
Sensitivity Studies ◽  
Gain Stage ◽  
Acoustic Sensitivity

The design, fabrication, and characterization of a surface micromachined, front-vented, 64 channel (8×8), capacitively sensed pressure sensor array is described. The array was fabricated using the MEMSCAP PolyMUMPs® process, a three layer polysilicon surface micromachining process. An acoustic lumped element circuit model was used to design the system. The results of our computations for the design, including mechanical components, environmental loading, fluid damping, and other acoustic elements are detailed. Theory predicts single element sensitivity of 1 mV/Pa at the gain stage output in the 400–40,000 Hz band. A laser Doppler velocimetry (LDV) system has been used to map the spatial motion of the elements in response to electrostatic excitation. A strong resonance appears at 480 kHz for electrostatic excitation, in good agreement with mathematical models. Static stiffness measured electrostatically using an interferometer is 0.1 nm/V2, similar to the expected stiffness. Preliminary acoustic sensitivity studies show single element acoustic sensitivity (as a function of frequency) increasing from 0.01 mV/Pa at 200 Hz to 0.16 mV/Pa at 2 kHz. A more in depth analysis of acoustic sensitivity is ongoing.

scholarly journals Fully Analytical Characterization of the Series Inductance of Tapered Integrated Inductors

2014 ◽  
Vol 60 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Fabio Passos ◽  
M. Helena Fino ◽  
Elisenda R. Moreno
Keyword(s):  
Element Model ◽  
Technological Parameters ◽  
Integrated Inductors ◽  
Integrated Inductor ◽  
Lumped Element ◽  
Evaluation Of Performance ◽  
Lumped Element Model ◽  
General Method

Abstract In this paper a general method for the determination of the series inductance of polygonal tapered inductors is presented. The value obtained can be integrated into any integrated inductor lumped element model, thus granting the overall characterization of the device and the evaluation of performance parameters such as the quality factor or the resonance frequency. In this work, the inductor is divided into several segments and the corresponding self and mutual inductances are calculated. In the end, results obtained for several working examples are compared against electromagnetic (EM) simulations are performed in order to check the validity of the model for square, hexagonal, octagonal and tapered inductors. The proposed method depends exclusively on the geometric characteristics of the inductor as well as the technological parameters. This allows its straight forward application to any inductor shape or technology.

scholarly journals Design and characterization of a lumped element single-ended superconducting microwave parametric amplifier with on-chip flux bias line

2013 ◽  
Vol 103 (12) ◽  
pp. 122602 ◽  
Author(s):  
J. Y. Mutus ◽  
T. C. White ◽  
E. Jeffrey ◽  
D. Sank ◽  
R. Barends ◽  
...  
Keyword(s):  
Parametric Amplifier ◽  
Lumped Element ◽  
Bias Line ◽  
On Chip

Characterization of lumped element kinetic inductance detectors for mm-wave detection

2010 ◽  
Author(s):  
M. Roesch ◽  
A. Bideaud ◽  
A. Benoit ◽  
A. Cruciani ◽  
F. X. Désert ◽  
...  
Keyword(s):  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Lumped Element ◽  
Wave Detection

Design of Micro Diaphragm Pumps With Active Valves

2006 ◽  
Author(s):  
Frank Goldschmidtbo¨ing ◽  
Alexander Doll ◽  
Andreas Geipel ◽  
Martin Wischke ◽  
Peter Woias
Keyword(s):  
High Performance ◽  
Fabrication Technology ◽  
Artificial Sphincter ◽  
Drug Delivery Device ◽  
Lumped Element ◽  
Silicon Bulk ◽  
Element Approach ◽  
Performance Drivers ◽  
Pressure Independent

This paper deals with the theory, fabrication and characterization of micro diaphragm pumps with active valves. Three types of micropumps with piezoelectric actuation are presented. Special emphasis is given on the accordance of theory and experiment. The theory is based on a lumped-element approach that is reduced to its basics to enable a reasonable accuracy with a minimized set of conceptional parameters. The experimental results fit well to the theory. The fabrication technology of the micropumps comprises of a silicon bulk micromechanics process in combination with a back-end gluing process of piezoelectric PZT-disks (PZT lead-circonat-titanat) to the silicon diaphragms. The micropumps were developed for different applications. The three- and the four-diaphragm micropumps were designed as high performance drivers for an artificial sphincter prosthesis. They show a maximum flowrate of 4 ml/min and a maximum sustainable backpressure of up to 70 kPa. The two-diaphragm micropump was engineered for an implantable drug delivery device and features a pressure independent dosing for backpressures up to 20 kPa.

scholarly journals Development and characterization of a flux-pumped lumped element Josephson parametric amplifier

2019 ◽  
Vol 198 ◽  
pp. 00008
Author(s):  
Martina Esposito ◽  
Joseph Rahamim ◽  
Andrew Patterson ◽  
Matthias Mergenthaler ◽  
James Wills ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Quantum Noise ◽  
Parametric Amplifier ◽  
Superconducting Qubits ◽  
Single Shot ◽  
Circuit Qed ◽  
Figures Of Merit ◽  
Lumped Element ◽  
Lc Resonator

Josephson parametric amplification is a tool of paramount importance in circuit-QED especially for the quantum-noise-limited single-shot read-out of superconducting qubits. We developed a Josephson parametric amplifier (JPA) based on a lumped-element LC resonator, in which the inductance L is composed by a geometric inductance and an array of 4 superconducting quantum interference devices (SQUIDs). We characterized the main figures of merit of the device, obtaining a −3 dB bandwidth BW = 15 MHz for a gain G = 21 dB and a 1 dB compression point P1dB = −115 dBm. The obtained results are promising for the future use of such JPA as the first stage of amplification for single-shot readout of superconducting qubits.

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