Specifications
Conference name: 4th International Conference on Mechanical and Electrical Technology,
ICMET 2012
Conference date: July 24, 2012 - July 26, 2012
Conference location: Kuala Lumpur, Malaysia
Conference code: 94581
Sponsor: Science and Engineering Institute; Universiti Putra Malaysia
Publisher: Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670,
Germany
Abstract: The electromagnetic simulation software CST was used to analyze the effects of
reentry plasma sheath on the GPS navigation antenna. The Impedance and radiation
characteristics of antenna were studied on condition that the antenna was coated with uniform
and nonuniform electron density distribution plasma sheath respectively. The results show that,
the antenna coated with the uniform plasma sheath, the plasma electron density increasing, the
antenna operating frequency moves to high-frequency and that the directivity decreases as well;
when the antenna was coated with nonuniform plasma, with the higher electron peak density of
plasma sheath, besides that the operating frequency also moves to high-frequency, the
bandwidth stretches wide and the return loss reduces; the antenna radiation pattern distorts
seriously at the electron peak density of 1018m-3. © (2012) Trans Tech Publications, Switzerland.
Number of references: 11
Main heading: Antennas
Controlled terms: Directional patterns (antenna) - Plasma sheaths
Uncontrolled terms: Directivity - Electromagnetic simulation - Electron peak -
GPS antenna - GPS navigation - High frequency HF - Nonuniform plasma -
Operating frequency - Plasma electron density - Radiation characteristics - Return
loss
Classification code: 716 Telecommunication; Radar, Radio and Television - 932.3 Plasma
Physics
DOI: 10.4028/www.scientific.net/AMM.229-231.1614
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
6.
Accession number: 20125215834591
Title: Numeric alanalysis of size effect on mesol concrete random aggregate model
Authors: Liang, Xinyu1 ; Dang, Faning1/梁昕宇;党发宁
Author affiliation:
1 College of Civil Engineering and Architecture Xi'an University of Technology, Xi'an 710048,
Shaanxi Province, China
Corresponding author: Liang, X. (Key_xinyu@163.com)
Source title: Applied Mechanics and Materials
Abbreviated source title: Appl. Mech. Mater.
Volume: 226-228
Monograph title: Vibration, Structural Engineering and Measurement II
Issue date: 2012
Publication year: 2012