Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Fritzi Töpfer"'
Publikováno v:
Progress In Electromagnetics Research C. 79:17-29
This paper presents a study of planar silicon lens antennas with up to three stepped-impedance matching regions. The effective permittivity of the matching regions is tailor-made byetching periodic holes in the silicon substrate. The optimal thickne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5895952b70c7ecd9c5ab4344cd709aff
https://doi.org/10.2528/pierc17082106
https://doi.org/10.2528/pierc17082106
Publikováno v:
IEEE Microwave and Wireless Components Letters. 27:605-607
The water content in the epidermis correlates with different pathologic states of the skin; thus its assessment can aid the diagnosis and monitoring of conditions such as inflammation, edema, burns, and skin cancer. A micromachined microwave near-fie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef3f3e9638eefce56024cd6de274fc70
https://doi.org/10.1109/lmwc.2017.2701336
https://doi.org/10.1109/lmwc.2017.2701336
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:2050-2059
This paper presents a detailed technical characterization of a micromachined millimeter-wave near-field probe developed for skin cancer diagnosis. The broadband probe is optimized for frequencies from 90 to 104 GHz and consists of a dielectric-rod wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd479b36654f89629615fb4b35a20637
https://doi.org/10.1109/tmtt.2015.2428243
https://doi.org/10.1109/tmtt.2015.2428243
Autor:
Joachim Oberhammer, Fritzi Töpfer
Publikováno v:
IEEE Microwave Magazine. 16:97-113
At the end of the 19th century, researchers observed that biological substances have frequency- dependent electrical properties and that tissue behaves "like a capacitor" [1]. Consequently, in the first half of the 20th century, the permittivity of m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::136fc340ece66639b751f6940f14858a
https://doi.org/10.1109/mmm.2015.2394020
https://doi.org/10.1109/mmm.2015.2394020
Autor:
Joachim Oberhammer, Fritzi Töpfer
For many malignant tumors a different microwave signature as compared to the surrounding tissue has been observed. Thus microwave measurements and imaging can potentially aid the diagnosis of malignant tumors, and a multitude of techniques and system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8abbfdf6684f1d09bce4e39cd745ae9
https://doi.org/10.1016/b978-0-12-802903-9.00003-5
https://doi.org/10.1016/b978-0-12-802903-9.00003-5
Autor:
Lars Tenerz, Anders Rydberg, Fritzi Töpfer, Lennart Emtestam, Xin Hu, Sergey Dudorov, Jachim Oberhammer, Robin Augustine, Dragos Dancila
Publikováno v:
Skin Research and Technology. 20:116-123
More than 2 million cases of skin cancer are diagnosed annually in the United States, which makes it the most common form of cancer in that country. Early detection of cancer usually results in less extensive treatment and better outcome for the pati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4d5f69fca696a045c2081a2402c3707
https://doi.org/10.1111/srt.12093
https://doi.org/10.1111/srt.12093
Publikováno v:
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
A micromachined millimeter-wave probe, optimized for early-stage skin tumor diagnosis has been verified using a murine skin cancer model. Malignant melanoma tumors are clearly distinguishable from surrounding healthy tissue, since the difference in S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b0c323d876fc4f491e1e464a03609df
https://doi.org/10.1109/irmmw-thz.2016.7758369
https://doi.org/10.1109/irmmw-thz.2016.7758369
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
This paper presents for the first time measurement data on in-vivo dermatological experiments verifying the performance of a millimeter-wave medical probe designed for skin-cancer diagnosis. The probe consists of a micromachined silicon-core dielectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8f656a149bc7c441779a3d455f70f51
https://doi.org/10.1109/mwsym.2014.6848502
https://doi.org/10.1109/mwsym.2014.6848502
2-Dimensional near-field millimeter-wave scanning with micromachined probe for skin cancer diagnosis
Publikováno v:
2013 IEEE 26th International Conference on Micro Electro Mechanical Systems (MEMS).
This paper reports for the first time on the 2-dimensional scanning performance of a micromachined millimeter-wave (100 GHz) near-field probe with a substantially reduced tip size which is designed for skin cancer diagnosis. Furthermore, it introduce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4824028fd640f2b6d71d082bc7519f6
https://doi.org/10.1109/memsys.2013.6474431
https://doi.org/10.1109/memsys.2013.6474431
Publikováno v:
2012 IEEE/MTT-S International Microwave Symposium Digest.
In this work, we present for the first time a miniaturized planar W-band dielectric-lens antenna which is micromachined in a 300 µm silicon wafer. The antenna edge comprises a metamaterial anti-reflection geometry in order to reduce parasitic reflec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84120fe96d38c97cc413acb968e7b659
https://doi.org/10.1109/mwsym.2012.6259654
https://doi.org/10.1109/mwsym.2012.6259654