DocumentCode
756938
Title
Fano limits again
Author
Hansen, Robert C.
Author_Institution
R. C. Hansen, Inc., CA
Volume
48
Issue
3
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
75
Abstract
I have long been an admirer of Harold Wheeler and his methodology; using these methods, Al Lopez has constructed an empirical closed-form solution (Equation (4) in A.R. Lopez (2005)) to the nonlinear simultaneous equations of Fano. The Lopez results agree to three significant figures with the exact solution of Fano´s equations (R.C. Hansen, 2005). Further, his augmented Tanner plot of the product of Q and bandwidth versus VSWR is quite useful. The confusion between Lopez and Hansen arose because the an and bn coefficients of Fano are not the same as the an and bn coefficients of Lopez
Keywords
Q-factor; bandwidth allocation; impedance matching; multifrequency antennas; nonlinear equations; Q factor; VSWR; impedance matching; matching bandwidth; multifrequency antennas; nonlinear simultaneous equations; Antenna measurements; Antennas and propagation; Bandwidth; Closed-form solution; Ear; Equations; Impedance matching; Q factor;
fLanguage
English
Journal_Title
Antennas and Propagation Magazine, IEEE
Publisher
ieee
ISSN
1045-9243
Type
jour
DOI
10.1109/MAP.2006.1703409
Filename
1703409
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