Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Julien Macario"'
Autor:
Peng Yao, Shouyuan Shi, Dennis W. Prather, Julien Macario, Alicia Zablocki, Andrew J. Mercante
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 62:306-312
This paper reports the RF packaging design for electrooptic modulators operating in the millimeter-wave domain and discusses the RF and optical performances of the module. An LiNbO3 phase modulator has been integrated in a compact housing offering a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::396d42cb74b0b6c382997d50569bf0a0
https://doi.org/10.1109/tmtt.2013.2295769
https://doi.org/10.1109/tmtt.2013.2295769
Autor:
Andrew Robbins, Julien Macario, Richard D. Martin, Jesse P. Samluk, Shouyuan Shi, John P. Wilson, Dennis W. Prather, Caihua Chen, Christopher A. Schuetz, Rownak Shireen, Thomas E. Dillon, Peng Yao, E. Lee Stein, Daniel G. Mackrides
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 33:1076-1084
Millimeter wave (mmW) imaging has enjoyed a measure of success due to the unique properties of imaging in this spectral region, some of which are still being discovered. For example, a key advantage of mmW imaging is the ability to penetrate through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b9450a9afee96a431d62615b411e85b
https://doi.org/10.1007/s10762-012-9931-9
https://doi.org/10.1007/s10762-012-9931-9
Autor:
Christopher A. Schuetz, Julien Macario, Rownak Shireen, Shouyuan Shi, Peng Yao, Dennis W. Prather
Publikováno v:
Journal of Lightwave Technology. 27:5698-5703
This paper presents the latest improvements in design and fabrication of ridged LiNbO3 optical phase modulators operating in the W-band for millimeter-wave imaging applications at 94 GHz. It describes the design conditions for effective index matchin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04bec9f36cd98d18f3f6b30b0489d7f1
https://doi.org/10.1109/jlt.2009.2035641
https://doi.org/10.1109/jlt.2009.2035641
Autor:
Julien Macario, Peng Yao, Shouyuan Shi, Rownak Shireen, Christopher A. Schuetz, Dennis W. Prather
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 57:1494-1499
This paper presents transition from coplanar waveguide (CPW) to rectangular waveguide for W -band (75-110 GHz) operations. The waveguide consists of a cosine-shaped fin extending from the upper waveguide wall onto the CPW signal electrode. The design
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80543c9fc7edf6c60b7be552c7047412
https://doi.org/10.1109/tmtt.2009.2020673
https://doi.org/10.1109/tmtt.2009.2020673
Publikováno v:
SPIE Proceedings.
Lithium niobate (LN) modulators have been for years the devices of choice for the telecommunication market due to their high modulation rate and their robustness. Matching RF and optical velocities has been the most critical factor that limited this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c80944fc41653c7a0e222a2feec69fce
https://doi.org/10.1117/12.898305
https://doi.org/10.1117/12.898305
Publikováno v:
IEEE Photonic Society 24th Annual Meeting.
A LiNbO 3 electro-optic phase modulator for millimeter-wave passive imaging is demonstrated at 170 GHz. Optical sidebands representing the upconversion of the RF energy into optical energy are reported in the 110–170 GHz bandwidth.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b1af018378713f28deb4571684174f0
https://doi.org/10.1109/pho.2011.6110532
https://doi.org/10.1109/pho.2011.6110532
Publikováno v:
SPIE Proceedings.
The integration of an opto-electronic mmW module for application to RF sensing and imaging is presented. Component integration consisting of ultra-broad band antennas, PIN switching, low noise amplifiers, and photonic phase modulator, is discussed. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c41179ad42f100f80916dea4a43c1fb
https://doi.org/10.1117/12.877562
https://doi.org/10.1117/12.877562
Autor:
Christopher A. Schuetz, Peng Yao, Shouyuan Shi, Rownak Shireen, Julien Macario, Dennis W. Prather
Publikováno v:
SPIE Proceedings.
Millimetre-wave (mmW) imaging has attracted significant research interests for the promises of allweather imaging and security scanning for military applications. Recently, we have developed a highsensitivity mmW imaging system based on photonic devi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c0fe993c6d253f916acf09857399030
https://doi.org/10.1117/12.819039
https://doi.org/10.1117/12.819039
Autor:
Peng Yao, E. Lee Stein, Caihua Chen, Jesse P. Samluk, Christopher A. Schuetz, Dennis W. Prather, Rownak Shireen, Daniel G. Mackrides, Julien Macario, Richard D. Martin
Publikováno v:
SPIE Proceedings.
Millimeter wave (mmW) imaging is continually being researched for its applicability in all weather imaging. While previous accounts of our imaging system utilized Q-band frequencies (33-50 GHz), we have implemented a system that now achieves far-fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01aa75807977012d9672e2d74e122e46
https://doi.org/10.1117/12.799864
https://doi.org/10.1117/12.799864
Autor:
Julien Macario, Peng Yao, Shouyuan Shi, Christopher A. Schuetz, Dennis W. Prather, Rownak Shireen
Publikováno v:
2008 IEEE Antennas and Propagation Society International Symposium.
This paper presents conversion from coplanar waveguide (CPW) to fundamental rectangular waveguide mode for millimeter-wave applications. The transition is designed using cosine shaped fin to give broadband operation. It provides an efficient solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e171bb6c88c51efc3dab6d3d55e962c7
https://doi.org/10.1109/aps.2008.4619920
https://doi.org/10.1109/aps.2008.4619920