About: Effective Length of a Receiving Antenna in a Streaming Plasma

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Effective Length of a Receiving Antenna in a Streaming Plasma Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Středněkvadratické napětí na svorkách přijímací antény indukované dopadající potenciální vlnou o frekvenci blízké plazmové resonanci v proudícím plazmatu je vyčísleno. Napětí je součinem elektrického pole vlny a efektivní délky antény, která se však od téže v neproudícim plazmatu silně liší. Jsou diskutovány dopady na pozorovaní takových vln v družicových experimentech ve slunečním větru a ukazuje se , ze dosavadní interpretace vlnových amplitud jsou nadhodnoceny. (cs) The root-mean-square (r.m.s) voltage induced on a receiving dipole antenna by incident potential waves in a streaming otherwise isotropic plasma in the resonance frequency band is calculated. The open-circuit voltage on antenna terminals is the product of the wave electric field strength at the receiving point and the effective length of the receiving antenna Leff. The effective length differs substantially from that in a non-streaming plasma for waves propagating downstream at frequencies close to the plasma frequency. The case of stream velocity lower than the electron thermal velocity is considered, which is of interest for wave measurements in the solar wind. We discuss some implications for relevant experiments in space plasmas, namely the appearance of narrowband lines in the spectra around local plasma frequency observed in the solar wind. The possible exaggeration of plasma wave amplitudes in conventional interpretations of measurements is pointed out. The root-mean-square (r.m.s) voltage induced on a receiving dipole antenna by incident potential waves in a streaming otherwise isotropic plasma in the resonance frequency band is calculated. The open-circuit voltage on antenna terminals is the product of the wave electric field strength at the receiving point and the effective length of the receiving antenna Leff. The effective length differs substantially from that in a non-streaming plasma for waves propagating downstream at frequencies close to the plasma frequency. The case of stream velocity lower than the electron thermal velocity is considered, which is of interest for wave measurements in the solar wind. We discuss some implications for relevant experiments in space plasmas, namely the appearance of narrowband lines in the spectra around local plasma frequency observed in the solar wind. The possible exaggeration of plasma wave amplitudes in conventional interpretations of measurements is pointed out. (en)
Title	Effective Length of a Receiving Antenna in a Streaming Plasma Effective Length of a Receiving Antenna in a Streaming Plasma (en) Efektivní délka přijímací antény v proudícím plazmatu (cs)
skos:prefLabel	Effective Length of a Receiving Antenna in a Streaming Plasma Effective Length of a Receiving Antenna in a Streaming Plasma (en) Efektivní délka přijímací antény v proudícím plazmatu (cs)
skos:notation	RIV/68378289:_____/06:00043015!RIV07-AV0-68378289
http://linked.open.../vavai/riv/strany	2750;2756
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA301120601), Z(AV0Z30420517)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Fiala, Vladimír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky atmosféry AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	473280
http://linked.open...ai/riv/idVysledku	RIV/68378289:_____/06:00043015
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	receiving antenna; plasma waves; resonance (en)
http://linked.open.../riv/klicoveSlovo	receiving antenna resonance plasma waves
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[217E2209BE65]
http://linked.open...i/riv/nazevZdroje	IEEE Transactions on Antennas and Propagation
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Investigation of plasma waves in the magnetosphere and in the solar wind
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Chugunov, Yu. V. Fiala, Vladimír
http://linked.open...n/vavai/riv/zamer	Studium atmosférického obalu Země v interakci s pozemskými a kosmickými vlivy
issn	0018-926X
number of pages	7 (xsd:int)

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software