Results 91 to 100 of about 898,512 (189)

A New Class of Wideband Quadrature Coupled-Line Forward Couplers

IEEE Journal of Microwaves
This paper presents a new class of wideband quadrature coupled-line forward couplers making use of the unequal phase velocities of even- and odd-mode of coupled-lines in inhomogeneous media.
Henning Mextorf, Winfried Schernus
doaj   +1 more source

Portable low profile antenna at X-band [PDF]

, 2011
An antenna which has been conceived as a portable system for satellite communications based on the recommendations ITU-R S.580-6 and ITU-R S.465-5 for small antennas, i.e., with a diameter lower than 50 wavelengths, is introduced.
Fernández González, José Manuel, García Aguilar, Andrés, Inclán Alonso, José Manuel, Sanmartin Jara, J., Sierra Pérez, Manuel, Sierra Pérez, Manuel, Vigil Herrero, Lucía   +6 more
core   +1 more source

High matter density peaks from UVES observations of QSO pairs: correlation properties and chemical abundances

, 2002
We study the transverse clustering properties of high matter density peaks as traced by high column density absorption systems (either Lyman limit systems characterized by N(HI)> 2 x 10^{17} cm^{-2} or CIV systems with W_{r}> 0.5 A) at redshifts between ...
Arnouts, Ballester, Bergeron, Bergeron, Bergeron, Bergeson, Cen, Cen, Centurión, Chiappini, Cristiani, D'Odorico, D'Odorico, de Kool, Dessauges-Zavadsky, Ellison, Fontana, Francis, Francis, Francis, Francis, Francis, Giavalisco, Guillemin, Haehnelt, Hamann, Hawkins, Heckman, Hernquist, Jenkins, Katz, Kim, Le Brun, Ledoux, Lu, Madau, Mar, McDonald, Miralda-Escudé, Molaro, P. Petitjean, Petitjean, Porciani, Prochaska, Prochaska, Prochaska, Raassen, Rauch, S. Cristiani, Sargent, Shaver, Srianand, Steidel, Steidel, Steidel, Storrie-Lombardi, Theuns, Tomkin, Tytler, V. D'Odorico, Verner, Viegas, Weymann, Wolfe, Wolfe, Wolfe, Zhang   +66 more
core   +2 more sources

Novel Wideband Microstrip Absorptive Bandstop Filter Utilizing Coupled-Line Architecture

IEEE Access
Reflectionless and high-attenuation characteristics are crucial for protecting sensitive front-end components, such as power amplifiers and mixers, in modern communication systems.
Chuan-Jing Jiang, Ching-Wen Tang
doaj   +1 more source

Sharp Response Microstrip LPF using Folded Stepped Impedance Open Stubs [PDF]

, 2013
A novel microstrip lowpass filter with high selectivity and wide stopband is proposed that comprises two lateral folded open stubs and a central mirrored semi-circle ended suppressing cell.
Ahmadi, A., Majidifar, S., Makki, S. V., Rahmani, Z., Sariri, H.   +4 more
core   +1 more source

Design Broad Bandwidth Microwave Bandpass Filter Of 10 Ghz Operating Frequency Using HFSS [PDF]

, 2017
Microwave bandpass filter is the essential part in microwave circuits and wireless communication systems. This paper presents a new designing and simulation of broad bandwidth,low losses microwave bandpass filter operating at 10 GHz frequency using ...
Jasim, S. E., Mohamad Ashry, Jusoh
core  

Design of a Compact Reconfigurable Microstrip Bandpass Filter With Switchable Triple- and Quadruple-Passbands

IEEE Access
This paper presents a compact planar microstrip bandpass filter with reconfigurable triple- and quadruple-passband responses for dynamic spectrum access in cognitive and software-defined radio systems.
Ching-Wen Tang, Yi-Zhan Lee
doaj   +1 more source

Rigorous Approach for Design of Differential Coupled-Line Directional Couplers Applicable in Integrated Circuits and Substrate-Embedded Networks. [PDF]

Sci Rep, 2016
Staszek K, Wincza K, Gruszczynski S.
europepmc   +1 more source

A novel high-power dual-band coupled-line Gysel power divider with impedance-transforming functions. [PDF]

ScientificWorldJournal, 2014
Wang W, Wu Y, Liu Y.
europepmc   +1 more source

Intermediate Coupling Line Strengths [PDF]

Monthly Notices of the Royal Astronomical Society, 1954
openaire   +1 more source