Results 121 to 130 of about 31,808 (349)
Redshift antenna project [PDF]
The layout of a center frequency 2203.1 MHz antenna is presented. The four to one taped layout was photograph reduced and a single section was etched.
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Multifrequency broadband polarized horn antenna [PDF]
, 1981 A corrugated conical horn antenna is simultaneously fed a multiplicity of signals, two for each of five frequencies, with each of a pair of signals fed in each of two orthogonal planes for excitation of a desired spherical hybrid mode.
Green, K. A.
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A Steerable and Expandable Magnetic Aspiration Catheter for Enhanced Aspiration Thrombectomy
Advanced Intelligent Systems, EarlyView.This article presents a novel magnetic aspiration catheter (MAC) that can be both actively steered and undergo distal‐end expansion via externally applied magnetic fields. The MAC facilitates precise branch selection and enhances clot engagement by improving endovascular navigation and aspiration efficiency. Phantom experiments validate its feasibility
Hakjoon Lee +7 more
wiley +1 more source
Research on a Novel Kind of Dual Polarized Stacked Printed Antenna
International Journal of Antennas and Propagation, 2018 This paper presents a dual polarized antenna with high isolation for a wide-angle scanning phased array radar. For the proposed antenna, the electronic and magnetic resources are realized through a printed monopole antenna and a slot ring antenna ...
Gao Zhiwei, Fang qingyuan, Jiang shugang
doaj +1 more source
3D coaxial out-of-plane metallic antennas for filtering and multi-spectral imaging in the infrared range [PDF]
, 2016 Andrea Jacassi +4 more
openalex +1 more source
Exploring the Application of Waxes and Their Mixtures Oleogels in Ice Cream
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT The objective of this work was to produce ice cream using waxes oleogels, aiming to improve its nutritional value while maintaining its physical‐chemistry characteristics. Five ice cream formulations were manufactured using (1) milk fat, (2) canola oil, and (3–5) canola oil‐oleogels. The oleogels were produced with beeswax (BEW), carnauba wax (
Ana Paula Lima Ribeiro +6 more
wiley +1 more source
International Journal of Antennas and Propagation, 2010 The present paper describes the gain enhancement of a small and low-profile linear antenna with capacitive feed (C-feed) using three metallic layers. The antenna has very small leakage current on the outer conductor of the coaxial cable and can easily ...
Kazuki Ide +2 more
doaj +1 more source
Universal Statistics of the Scattering Coefficient of Chaotic Microwave Cavities
, 2005 We consider the statistics of the scattering coefficient S of a chaotic microwave cavity coupled to a single port. We remove the non-universal effects of the coupling from the experimental S data using the radiation impedance obtained directly from the ...
Edward Ott +11 more
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k‐Selective Electrical‐to‐Magnon Transduction with Finite‐Element‐Resolved Sub‐Micron Nanoantennas
Advanced Physics Research, EarlyView.We introduce a coupled finite‐element‐finite‐difference framework that links impedance‐matched nanoantenna geometries to propagating spin‐wave dynamics, capturing skin effects, proximity effects, and taper leakage beyond uniform‐current models. Applied to coplanar‐waveguide and stripline nanoantennas on yttrium‐iron‐garnet, the simulations achieve ...
Andreas Höfinger +11 more
wiley +1 more source
High efficiency multifrequency feed [PDF]
, 1974 Antenna systems and particularly compact and simple antenna feeds which can transmit and receive simultaneously in at least three frequency bands, each with high efficiency and polarization diversity are described.
Ajioka, J. S. +2 more
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