.TH coax 1 "atlc-4.6.0 28th Oct 2003" "Dr. David Kirkby"
.ds n 5
.SH NAME
\fBcoax\fR - determine impedance of a coaxial structure, where the inner may be offset from the centre if
necessary.
.SH SYNOPSIS
\fBcoax [-O offset] d D Er\fR
.br
.SH DESCRIPTION
coax computes the impedance of a coaxial cable, given the 
outside diameter of the inner conductor d, the internal diameter of the outer 
conductor D and the relative permittivity of the dielectric Er. If there is 
an offset between the inner and outer (i.e. the coax is eccentric), 
the offset can be given as a option. coax uses the 
equation 
.br
.br
Zo=59.95849160 ln(x+sqrt(x^2-1)) /sqrt(Er)  Ohms
.br
.br
where x=(d^2+D^2-4 O^2)/(2*D*d) 
.br
.br
.SH FILES 
coax does not read/write any files. 
.SH SEE ALSO
atlc(1)
.br
create_bmp_for_circ_in_circ(1)
.br
create_bmp_for_circ_in_rect(1)
.br
create_bmp_for_microstrip_coupler(1)
.br
create_bmp_for_rect_cen_in_rect(1)
.br
create_bmp_for_rect_cen_in_rect_coupler(1)
.br
create_bmp_for_rect_in_circ(1)
.br
create_bmp_for_rect_in_rect(1)
.br
create_bmp_for_stripline_coupler(1)
.br
create_bmp_for_symmetrical_stripline(1)
.br
design_coupler(1)
.br
dualcoax(1)
.br
find_optimal_dimensions_for_microstrip_coupler(1)
.br
readbin(1)
.P 
.br
http://atlc.sourceforge.net      - Home page 
.br
http://sourceforge.net/projects/atlc   - Download area
.br
/usr/local/share/atlc/docs/html-docs/index.html  - HTML docs
.br
/usr/local/share/atlc/docs/qex-december-1996/atlc.pdf - theory paper
.br
/usr/local/share/atlc/examples    - examples
.br