The definition of cross polarization
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TLDR
There are at least three different definitions of cross polarization used in the literature, and the definition which corresponds to one standard measurement practice is proposed as the best choice.Abstract:
There are at least three different definitions of cross polarization used in the literature. The alternative definitions are discussed with respect to several applications, and the definition which corresponds to one standard measurement practice is proposed as the best choice.read more
Citations
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Journal ArticleDOI
Design of two-layer printed reflectarrays using patches of variable size
TL;DR: In this paper, a multilayer reflectarray composed of two stacked arrays with rectangular patches of variable size is demonstrated, and a progressive phase distribution on the reflector surface is achieved by adjusting the dimensions of the patches.
Journal ArticleDOI
A Wideband, Wide Scanning Tightly Coupled Dipole Array With Integrated Balun (TCDA-IB)
TL;DR: In this article, a tightly coupled dipole array with an integrated balun (TCDA-IB) is developed which achieves 7.35:1 bandwidth (0.68 - 5.0 GHz) while scanning to ±45° in all directions, subject to.
Journal ArticleDOI
The Atacama Cosmology Telescope: DR4 maps and cosmological parameters
Simone Aiola,Erminia Calabrese,Loïc Maurin,Loïc Maurin,Sigurd Naess,Benjamin L. Schmitt,Maximilian H. Abitbol,Graeme E. Addison,Peter A. R. Ade,David Alonso,Mandana Amiri,S. Amodeo,Elio Angile,Jason E. Austermann,Taylor Baildon,Nick Battaglia,James A. Beall,Rachel Bean,Daniel T. Becker,J. Richard Bond,Sarah Marie Bruno,Victoria Calafut,Luis E. Campusano,Felipe Carrero,Grace E. Chesmore,H. M. Cho,H. M. Cho,Steve K. Choi,Steve K. Choi,Susan E. Clark,Nicholas F. Cothard,Devin Crichton,Kevin T. Crowley,Kevin T. Crowley,Omar Darwish,Rahul Datta,E. V. Denison,Mark J. Devlin,Cody J. Duell,Shannon M. Duff,Adriaan J. Duivenvoorden,Jo Dunkley,Rolando Dünner,Thomas Essinger-Hileman,Max Fankhanel,Simone Ferraro,Anna E. Fox,Brittany Fuzia,Patricio A. Gallardo,Vera Gluscevic,Joseph E. Golec,Emily Grace,Megan Gralla,Yilun Guan,Kirsten Hall,Mark Halpern,Dongwon Han,Peter Charles Hargrave,Matthew Hasselfield,Jakob M. Helton,S. Henderson,Brandon S. Hensley,J. Colin Hill,Gene C. Hilton,Matt Hilton,Adam D. Hincks,Renée Hložek,Shuay-Pwu Patty Ho,Johannes Hubmayr,Kevin M. Huffenberger,John P. Hughes,Leopoldo Infante,Kent D. Irwin,Rebecca Jackson,Jacob Klein,Kenda Knowles,Brian J. Koopman,Arthur Kosowsky,Vincent Lakey,Dale Li,Dale Li,Yaqiong Li,Zack Li,Martine Lokken,Thibaut Louis,Marius Lungu,Marius Lungu,Amanda MacInnis,Mathew S. Madhavacheril,Felipe Maldonado,Maya Mallaby-Kay,Danica Marsden,Jeff McMahon,Felipe Menanteau,Kavilan Moodley,Timothy D. Morton,Toshiya Namikawa,Federico Nati,Federico Nati,Laura Newburgh,John P. Nibarger,Andrina Nicola,Michael D. Niemack,Michael R. Nolta,John Orlowski-Sherer,Lyman A. Page,Christine G. Pappas,Bruce Partridge,Phumlani Phakathi,Giampaolo Pisano,Heather Prince,Roberto Puddu,Frank J. Qu,Jesus Rivera,Naomi Robertson,Felipe Rojas,Maria Salatino,Emmanuel Schaan,Alessandro Schillaci,Neelima Sehgal,Blake D. Sherwin,Carlos Sierra,Jon Sievers,C. Sifon,Precious Sikhosana,Sara M. Simon,David N. Spergel,Suzanne T. Staggs,Jason R. Stevens,Emilie R. Storer,Dhaneshwar D. Sunder,Eric R. Switzer,B. Thorne,Robert Thornton,Robert Thornton,Hy Trac,Jesse Treu,Carole Tucker,Leila R. Vale,Alexander van Engelen,Jeff Van Lanen,Eve M. Vavagiakis,Kasey Wagoner,Yuhan Wang,Jonathan T. Ward,Edward J. Wollack,Zhilei Xu,Fernando Zago,Ningfeng Zhu +148 more
TL;DR: In this article, the Atacama Cosmology Telescope (ACT) data were used to estimate the temperature and polarization anisotropy from the cosmic microwave background (CMB) at 98 and 150 GHz.
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The visibility function in interferometric aperture synthesis radiometry
TL;DR: The fundamental equation of interferometric aperture synthesis radiometry is revised to include full antenna pattern characterization and receivers' interaction and it is shown that the cross correlation between the output signals of a pair of receivers is a Fourier-like integral of the difference between the scene brightness temperature and the physical temperature of the receivers.
Journal ArticleDOI
HRSID: A High-Resolution SAR Images Dataset for Ship Detection and Instance Segmentation
TL;DR: Experimental results reveal that ship detection and instance segmentation can be well implemented on HRSID, and this work has constructed a High-Resolution SAR Images Dataset (HRSID).
References
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Journal ArticleDOI
Paraboloid reflector and hyperboloid lens antennas
TL;DR: In this paper, a theoretical analysis of the radiating properties of the paraboloid reflector and the hyperboloid lens was performed, and it was shown that low amplitude cross-polarized radiation and high gain factors can be obtained from the reflector excited by a plane-wave source.
Journal ArticleDOI
Feed polarization for parallel currents in reflectors generated by conic sections
TL;DR: In this paper, the authors present a method for determining the "ideal" feed polarization that should be incident upon a "conic" reflector, which is specified in terms of the polarization characteristics of elemental electric and magnetic dipoles.
Proceedings ArticleDOI
Communications satellite antennas for frequency reuse
D. DiFonzo,R. Kreutel +1 more
Journal ArticleDOI
Distortion of electromagnetic pulses undergoing total internal reflection from a moving dielectric half-space
TL;DR: Using the covariance of Maxwell's equations and the phase invariance principle of plane waves, distortion of the electromagnetic pulses undergoing total internal reflection from a moving dielectric half-space has been studied as discussed by the authors.