Results 41 to 50 of about 22,763 (260)
Geophysical Research Letters, 2022 Interpretation of radar sounder reflections to infer the structure and composition of the martian polar caps depends on whether bright returns correspond to single packed dust layers or a more finely layered structure.
Erica R. Jawin +3 more
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Co-Designed 3+3 Port Dual-Band Broadside Tri-Modal Patch Antenna
IEEE Open Journal of Antennas and Propagation, 2021 A co-designed (3+3)-port antenna for dual-band operation that requires no feeding or decoupling network is proposed and verified. The antenna consists of six ports which are divided into two groups that resonate in two different frequency ranges ...
Chi-Yuk Chiu, Buon Kiong Lau, Ross Murch
doaj +1 more source
Cascaded multilevel control of DSTATCOM using multiband hysteresis modulation [PDF]
, 2006 In this paper a cascaded H-bridge inverter topology is used in a distribution static compensator (DSTATCOM). A new multiband hysteresis algorithm is used to control the switches of the cascaded H-bridges leading to multilevel output of the inverter.
A. Joshi +5 more
core +1 more source
Single-Band to Multiband Frequency Transformation for Multiband Filters
IEEE Transactions on Microwave Theory and Techniques, 2011 A method for the design of bandpass filters with multiple pass bands is presented. The key point of this method is a frequency map between single-band resonators and multiple-band networks formed by those resonators with additional resonators coupled to them.
García Lampérez, Alejandro +1 more
openaire +2 more sources
Approximating Sampled Sinusoids and Multiband Signals Using Multiband Modulated DPSS Dictionaries [PDF]
Journal of Fourier Analysis and Applications, 2016 Many signal processing problems--such as analysis, compression, denoising, and reconstruction--can be facilitated by expressing the signal as a linear combination of atoms from a well-chosen dictionary. In this paper, we study possible dictionaries for representing the discrete vector one obtains when collecting a finite set of uniform samples from a ...
Zhihui Zhu, Michael B. Wakin
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Design of planar inverted-F antennas (PIFA) for multiband wireless applications
, 2009 A small three bands printed inverted-F antenna with independently controlling the resonant frequency is presented. The proposed antenna consists of two arms supported by shorting walls fed by 50 Ω microstrip transmission line and a ground plane.
AbuTarboush, HF +11 more
core +1 more source
Frontiers in NeuroscienceThe hierarchical modular functional structure in the human brain has not been adequately depicted by conventional functional magnetic resonance imaging (fMRI) acquisition techniques and traditional functional connectivity reconstruction methods ...
Wei Zhang +6 more
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Multiband Antennas for SDR Applications [PDF]
International Journal of Digital Multimedia Broadcasting, 2009 We present multiband antennas configurations for SDR applications. Using a composite folded dipole structure as starting point, we derived more complex antenna configurations to support multiple communication protocols for mobile application with linear and circular polarizations.
Emanoil Surducan +3 more
openaire +2 more sources
Pairing mechanism in multiband superconductors [PDF]
Scientific Reports, 2020 AbstractIt has been a long-standing puzzle why electrons with repulsive interactions can form pairs in unconventional superconductors. Here we develop an analytic solution for renormalization group analysis in multiband superconductors, which agrees with the numerical results exceedingly well.
Wen-Min Huang, Hsiu-Hau Lin
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Multiband low-profile antenna for remote antenna unit picocell applications [PDF]
, 2008 The design of a compact, low-profile antenna constructed from five wire-patch elements is investigated. For a fiber-radio system a critical design parameter is the isolation between two WLAN elements.
Callaghan, Peter, Batchelor, John C.
core +1 more source