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Vertical Strip (vertical + strip)

Distribution by Scientific Domains
Engineering75%

Selected Abstracts

Broadband dual-band CPW-fed closed rectangular ring monopole antenna with a vertical strip for WLAN operation

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 7 2008
Li Zhang
Abstract A novel CPW-fed closed rectangular ring monopole antenna with a vertical strip is proposed for WLAN applications. The antenna with a very simple structure is easily fabricated. The measured results explore broadband dual-frequency operation with (10 dB) impedance bandwidths of 23.4%, range from 2.24 to 2.82 GHz, and 22.9%, ranging from 4.86 to 6.18 GHz, at bands of 2.48 and 5.76 GHz, respectively, which cover the 2.4/5.2/5.8 GHz WLAN operating bands. Also, good omni-directional radiation patterns and antenna gains over the operating bands have been obtained. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1929,1931, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23514 [source]

Fronts in reactive convection: Bounds, stability, and instability

COMMUNICATIONS ON PURE & APPLIED MATHEMATICS, Issue 12 2003
Peter Constantin
This paper examines a simplified active combustion model in which the reaction influences the flow. We consider front propagation in a reactive Boussinesq system in an infinite vertical strip. Nonlinear stability of planar fronts is established for narrow domains when the Rayleigh number is not too large. Planar fronts are shown to be linearly unstable with respect to long-wavelength perturbations if the Rayleigh number is sufficiently large. We also prove uniform bounds on the bulk burning rate and the Nusselt number in the KPP reaction case. © 2003 Wiley Periodicals, Inc. [source]

CAD modeling of coplanar waveguide cross-over air-bridge

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Issue 3 2005
Nihad Dib
Abstract In this article, a new CAD model for the coplanar waveguide (CPW) cross-over air-bridge is proposed. The model takes into account the CPW open-end capacitance and the vertical strips of the bridge. The section directly underneath the bridge is modeled as a small section of a microstrip line. Our results are in good agreement with the published full-wave results. © 2005 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2005. [source]