Design and characterization of microfluidic housing effects on coplanar waveguide microfluidic delay line performance

2013 ◽  
Vol 55 (4) ◽  
pp. 789-793 ◽  
Author(s):  
Casey Murray ◽  
Rhonda R. Franklin
Keyword(s):  
Delay Line ◽  
Coplanar Waveguide

scholarly journals RF Small and large signal characterization of a 3D integrated GaN/RF-SOI SPST switch

2021 ◽  
pp. 1-6
Author(s):  
Frédéric Drillet ◽  
Jérôme Loraine ◽  
Hassan Saleh ◽  
Imene Lahbib ◽  
Brice Grandchamp ◽  
...  
Keyword(s):  
Power Level ◽  
Coplanar Waveguide ◽  
Average Power ◽  
Input Power ◽  
Capacitive Coupling ◽  
Rf Switch ◽  
Large Signal ◽  
Waveguide Transmission ◽  
Signal Characterization

Abstract This paper presents the radio frequency (RF) measurements of an SPST switch realized in gallium nitride (GaN)/RF-SOI technology compared to its GaN/silicon (Si) equivalent. The samples are built with an innovative 3D heterogeneous integration technique. The RF switch transistors are GaN-based and the substrate is RF-SOI. The insertion loss obtained is below 0.4 dB up to 30 GHz while being 1 dB lower than its GaN/Si equivalent. This difference comes from the vertical capacitive coupling reduction of the transistor to the substrate. This reduction is estimated to 59% based on a RC network model fitted to S-parameters measurements. In large signal, the linearity study of the substrate through coplanar waveguide transmission line characterization shows the reduction of the average power level of H2 and H3 of 30 dB up to 38 dBm of input power. The large signal characterization of the SPST shows no compression up to 38 dBm and the H2 and H3 rejection levels at 38 dBm are respectively, 68 and 75 dBc.

scholarly journals A wideband cryogenic microwave low-noise amplifier

2020 ◽  
Vol 11 ◽  
pp. 1484-1491
Author(s):  
Boris I Ivanov ◽  
Dmitri I Volkhin ◽  
Ilya L Novikov ◽  
Dmitri K Pitsun ◽  
Dmitri O Moskalev ◽  
...  
Keyword(s):  
Power Dissipation ◽  
Coplanar Waveguide ◽  
Noise Temperature ◽  
High Electron Mobility Transistor ◽  
Low Noise ◽  
High Electron ◽  
Frequency Range ◽  
Noise Amplifier ◽  
On Chip

A broadband low-noise four-stage high-electron-mobility transistor amplifier was designed and characterized in a cryogen-free dilution refrigerator at the 3.8 K temperature stage. The obtained power dissipation of the amplifier is below 20 mW. In the frequency range from 6 to 12 GHz its gain exceeds 30 dB. The equivalent noise temperature of the amplifier is below 6 K for the presented frequency range. The amplifier is applicable for any type of cryogenic microwave measurements. As an example we demonstrate here the characterization of the superconducting X-mon qubit coupled to an on-chip coplanar waveguide resonator.

Characterization of Electromagnetic Properties of MID Materials for High Frequency Applications up to 67 GHz

2014 ◽  
Vol 1038 ◽  
pp. 63-68 ◽  
Author(s):  
Quang Huy Dao ◽  
Aline Friedrich ◽  
Bernd Geck
Keyword(s):  
Radio Frequency ◽  
Material Properties ◽  
High Frequency ◽  
Coplanar Waveguide ◽  
Electromagnetic Properties ◽  
Research Project ◽  
Material Parameters ◽  
Important Material ◽  
Rf Performance

This paper presents results of the research project: "Characterization of the radio frequency (RF) properties of LDS-MID" where RF parameters of laser direct structureable (LDS) molded interconnect device (MID) materials were investigated. First of all the most important material parameters influencing the RF performance of a device are introduced. In the next section the broadband characterization of the metallization and material properties using a coplanar waveguide (CPW) is described. For a selected LDS material the conduction losses due to different metallization compositions are discussed in detail.

Full-wave characterization of the mode conversion in a coplanar waveguide right-angled bend

1995 ◽  
Vol 43 (11) ◽  
pp. 2532-2538 ◽  
Author(s):  
Ming-Dong Wu ◽  
Sheng-Ming Deng ◽  
Ruey-Beei Wu ◽  
Powen Hsu
Keyword(s):  
Mode Conversion ◽  
Coplanar Waveguide ◽  
Full Wave

scholarly journals Complex Bianisotropy Effect on the Propagation Constant of a Shielded Multilayered Coplanar Waveguide Using Improved Full Generalized Exponential Matrix Technique

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 243 ◽  
Author(s):  
Djamel Sayad ◽  
Chemseddine Zebiri ◽  
Issa Elfergani ◽  
Jonathan Rodriguez ◽  
Hasan Abobaker ◽  
...  
Keyword(s):  
Propagation Constant ◽  
Coplanar Waveguide ◽  
Computing Time ◽  
Isotropic Case ◽  
Initial Value ◽  
Electromagnetic Propagation ◽  
Mathematical Expressions ◽  
Speed Up ◽  
Exponential Matrix

A theoretical study of the electromagnetic propagation in a complex medium suspended multilayer coplanar waveguide (CPW) is presented. The study is based on the generalized exponential matrix technique (GEMT) combined with Galerkin’s spectral method of moments applied to a CPW printed on a bianisotropic medium. The analytical formulation is based on a Full-GEMT, a method that avoids usual procedures of heavy and tedious mathematical expressions in the development of calculations and uses matrix-based mathematical expressions instead. These particularities are exploited to develop a mathematical model for the characterization of wave propagation in a three-layer shielded suspended CPW structure. This study is based on the development of mathematical formulations in full compact matrix-based expressions resulting in Green’s functions in a matrix form. The implemented method incorporates a new accelerating procedure developed in the GEMT which provides an initial value used to speed up searching for the exact solution in the principal computation code. This helped us to obtain accurate solutions with tolerable computing time. Good agreements have been achieved with the literature in terms of accuracy and rapid convergence. The results for different cases of bianisotropy have been investigated, and particularly, the effect on the dispersion characteristics is presented and compared with the isotropic case.

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