Zobrazeno 1 - 10
of 517
pro vyhledávání: '"K. Kuhlmann"'
Publikováno v:
Advances in Radio Science, Vol 22, Pp 35-45 (2024)
In this work the determination of measurement uncertainties in scattering parameter measurements for waveguide interfaces ranging from R 100 (WR 90) to R 2.6k (WR 3, WM-864) is presented. For each waveguide band a Thru Reflect Line calibration is per
Externí odkaz:
https://doaj.org/article/561a038f303a4d60932e5bdb77b02dd2
Publikováno v:
Advances in Radio Science, Vol 22, Pp 47-52 (2024)
In this study, the impact of local oscillator cable movements or drift during VNA measurements using frequency extenders is investigated. A non-reciprocal measurement error caused by alterations of the local oscillator signal in R 900 (WR 10) wavegui
Externí odkaz:
https://doaj.org/article/ae582d70b1394fd196ea8306252b466e
Publikováno v:
Advances in Radio Science, Vol 21, Pp 7-13 (2023)
In the last decade, waveguide thermoelectric power sensors have been established as an alternative to thermistor mounts for millimeter wave power standards, and due to the detection principle and the nature of waveguides, the generalized efficiency i
Externí odkaz:
https://doaj.org/article/64727bc503c04f3a9ff41dd248220a21
Autor:
K. Kuhlmann
Publikováno v:
Advances in Radio Science, Vol 20, Pp 17-21 (2023)
The principle of sequential rotation, a well-known method to arrange the radiating elements of antenna arrays, is briefly described, and the impact on the polarization of different antenna array configurations is presented. The influence of the numbe
Externí odkaz:
https://doaj.org/article/7504b158ad804e9e8ca8897678eba2e7
Publikováno v:
Advances in Radio Science, Vol 20, Pp 1-8 (2023)
In this work two methods for the characterization of adapters meaning reciprocal two-ports with different connector styles on both ports are analyzed and compared in detail. The focus is on the comparison of these approaches in terms of required effo
Externí odkaz:
https://doaj.org/article/ad57037b518b41f8b729009b179bdd9b
Broadband transitions for membrane-based coplanar waveguides on highly-conductive silicon substrates
Publikováno v:
Advances in Radio Science, Vol 10, Pp 13-18 (2012)
We present a transition from a contact structure built on highly-conductive silicon to a coplanar waveguide (CPW) fabricated in membrane technology. Test structures were fabricated and measured. The silicon-to-membrane transition is suitable for on-w
Externí odkaz:
https://doaj.org/article/d2c8997ece05488a899bce4daefcb9d8
Publikováno v:
Advances in Radio Science, Vol 9, Pp 9-17 (2011)
Radio-frequency (RF) scattering parameters (S-parameters) play an important role to characterise RF signal transmission and reflection of active and passive devices such as transmission lines, components, and small-signal amplifiers. Vector network a
Externí odkaz:
https://doaj.org/article/e8edfd6a7d3049b297dc51b636cf6da3
Autor:
Hanson Zhao, Colby P. Souders, Paige K. Kuhlmann, Kai Dallas, Karyn Eilber, Jennifer T. Anger
Publikováno v:
International Neurourology Journal, Vol 25, Iss 2, Pp 172-176 (2021)
Purpose We sought to describe and analyze the adverse events associated with synthetic male slings reported to the U.S. Food and Drug Administration (FDA) Manufacturer and User Facility Device Experience (MAUDE) database. Methods We queried the MAUDE
Externí odkaz:
https://doaj.org/article/70e4613e9a9d4e24977993445d9b8399
Autor:
Nina Mielke, Dörte Huscher, Antonios Douros, Natalie Ebert, Jens Gaedeke, Markus van der Giet, Martin K. Kuhlmann, Peter Martus, Elke Schaeffner
Publikováno v:
BMC Geriatrics, Vol 20, Iss 1, Pp 1-12 (2020)
Abstract Background Older adults have the highest drug utilization due to multimorbidity. Although the number of people over age 70 is expected to double within the next decades, population-based data on their medication patterns are scarce especiall
Externí odkaz:
https://doaj.org/article/c1f05e3f5f2844799eede1258eea993e
Autor:
Paige K. Kuhlmann, Taofik Oyekunle, Zachary Klaassen, Christopher L. Amling, William J. Aronson, Matthew R. Cooperberg, Christopher J. Kane, Martha K. Terris, Stephen J. Freedland
Publikováno v:
Cancer Medicine. 12:10931-10938
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1d82773c91aa3aa7c990f061963c72f
https://doi.org/10.1002/cam4.5805
https://doi.org/10.1002/cam4.5805