dualband EMTTOOL electric_field

EMTTOOL >> EMTTOOL > dualbw

dualbw

two-section dual-band transformer bandwidths

Calling Sequence

[f1L,f1R,f2L,f2R] = dualbw(Z0,ZL,r,GB);

Parameters

Z0

main line impedance

ZL

load impedance (real-valued)

r

harmonic number (arbitrary real number, r>1)

GB

reflection-coefficient bandwidth level

f1L,f1R

left and right bandwidth edge frequencies about f1 (in units of f1)

f2L,f2R

left and right bandwidth edge frequencies about f2 (in units of f1)

Description

dualbw(Z0,ZL,r,GB) computes two-section dual-band transformer bandwidths. f1L and f2R lie symmetrically about f0, i.e., f1L + f2R = 2f0. f1R and f2L lie symmetrically about f0, i.e., f1R + f2L = 2f0. SWR over the bandwidth is SB = (1+GB)/(1-GB) => GB = (SB-1)/(SB+1)

Examples

add sample pgm

See Also

Author

Used Functions

This function uses the functions z2g.

dualband EMTTOOL electric_field