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
Link To Document :
بازگشت