Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Henrik Kratz"'
Publikováno v:
Sensors and Actuators A: Physical. 188:401-410
The aim of this thesis work has been to investigate how miniaturization, such as microsystems technology, can potentially increase the scientific throughput in exploration of hard-to-reach underwater environments, such as the subglacial lakes of Anta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d1594953d3d0b6c82fe371e9973b596
https://doi.org/10.1016/j.sna.2012.02.034
https://doi.org/10.1016/j.sna.2012.02.034
Publikováno v:
IEEE Journal of Oceanic Engineering. 37:236-243
On, for instance, the miniaturized submersible explorer, Deeper Access, Deeper Understanding (DADU), only 20 cm in length and 5 cm in diameter, the sidescan sonar needs to be tightly mounted in the hull. Finite element analysis (FEA) as well as physi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8213cdfa3ba65850e8ca28199edc131
https://doi.org/10.1109/joe.2012.2188160
https://doi.org/10.1109/joe.2012.2188160
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 57:490-495
Single-beam side-scan sonar elements, to be fitted on a miniaturized submersible, are here simulated, manufactured, and evaluated. Finite element analysis simulations are compared with measurements, and an overall observation is that the agreement be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::846ce8242f128e109ca6d45f052c5953
https://doi.org/10.1109/tuffc.2010.1429
https://doi.org/10.1109/tuffc.2010.1429
Publikováno v:
Journal of Microelectromechanical Systems. 18:154-162
Substrate integrated waveguides (SIWs) are presented and demonstrated in a flexible printed circuit board (flex PCB) for application in the 77-81 GHz range. The vertical walls of the SIWs presented in this paper consist of multiple electrodeposited m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c39560d59bcb3f463b840d1c96b6b54c
https://doi.org/10.1109/jmems.2008.2009799
https://doi.org/10.1109/jmems.2008.2009799
Publikováno v:
IEEE Transactions on Antennas and Propagation. 57:64-71
The design, fabrication and characterization of 79 GHz slot antennas based on substrate integrated waveguides (SIW) are presented in this paper. All the prototypes are fabricated in a polyimide flex foil using printed circuit board (PCB) fabrication
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f99e8359ed6d71bcc68eecab731d00bc
https://doi.org/10.1109/tap.2008.2009708
https://doi.org/10.1109/tap.2008.2009708
Autor:
Claes-Ingvar Lagerkvist, Jack A. Jones, Fredrik Bruhn, Henrik Kratz, Johan Warell, Lars Stenmark, Viktor Kaznov
Publikováno v:
Acta Astronautica. 63:618-631
The Spherical Mobile Investigator for Planetary Surface (SMIPS) concept aims at making use of the latest developments within extreme miniaturization of space systems. The introduction of Microelectromechanical Systems (MEMSs) and higher level Multifu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3b5b9b792e2434585ef9e49096f3d93
https://doi.org/10.1016/j.actaastro.2008.01.044
https://doi.org/10.1016/j.actaastro.2008.01.044
Autor:
Greger Thornell, Arne Roos, Henrik Kratz, Marika Edoff, A. Hultåker, Tobias Böhnke, Carl-Gustaf Ribbing, Johan Köhler
Publikováno v:
Optical Materials. 30:1410-1421
Presented here is an examination of unstructured and structured (by anisotropic etching), monocrystalline silicon wafers coated with sputter deposited aluminum and chemical vapor deposited silicon dioxide for high solar reflectance and high thermal e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb1f79afcd91fa7864a6a7fe2c1fcfca
https://doi.org/10.1016/j.optmat.2007.08.005
https://doi.org/10.1016/j.optmat.2007.08.005
Publikováno v:
IEEE Transactions on Components and Packaging Technologies. 30:444-456
Thermal management is crucial for many microsystems and electronics applications (and that of miniaturized spacecraft is particularly demanding). This paper presents thermal modeling and scaling of a generic multiwafer silicon segment for placement i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5c03b4e4935f7d13ed2ea1f2b72a953
https://doi.org/10.1109/tcapt.2007.898684
https://doi.org/10.1109/tcapt.2007.898684
Publikováno v:
IEEE Transactions on Antennas and Propagation. 54:3593-3601
The integration of K-band (20-40 GHz) full wavelength square wire- and slot-loop antennas on low resistivity (11-70 Omegacm) silicon substrates is addressed. By the use of polymer or silicon oxide/nitride membranes to support the slot or wire loop ov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64bd8da52700ef546a14818d9d971f85
https://doi.org/10.1109/tap.2006.886532
https://doi.org/10.1109/tap.2006.886532
Publikováno v:
Journal of Spacecraft and Rockets. 43:1377-1386
This thesis explores the potential of multifunctional silicon-based microsystems for advanced integrated nanospacecraft (AIN). Especially, multifunctional microsystems with the coexistant functions of communications and thermal management implemented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3c8813f88a7a7e42893aea451e8e591
https://doi.org/10.2514/1.20398
https://doi.org/10.2514/1.20398