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   1 .TH coax 1 "atlc-4.6.0 28th Oct 2003" "Dr. David Kirkby"
   2 .ds n 5
   3 .SH NAME
   4 \fBcoax\fR - determine impedance of a coaxial structure, where the inner may be offset from the centre if
   5 necessary.
   6 .SH SYNOPSIS
   7 \fBcoax [-O offset] d D Er\fR
   8 .br
   9 .SH DESCRIPTION
  10 coax computes the impedance of a coaxial cable, given the
  11 outside diameter of the inner conductor d, the internal diameter of the outer
  12 conductor D and the relative permittivity of the dielectric Er. If there is
  13 an offset between the inner and outer (i.e. the coax is eccentric),
  14 the offset can be given as a option. coax uses the
  15 equation
  16 .br
  17 .br
  18 Zo=59.95849160 ln(x+sqrt(x^2-1)) /sqrt(Er)  Ohms
  19 .br
  20 .br
  21 where x=(d^2+D^2-4 O^2)/(2*D*d)
  22 .br
  23 .br
  24 .SH FILES
  25 coax does not read/write any files.
  26 .SH SEE ALSO
  27 atlc(1)
  28 .br
  29 create_bmp_for_circ_in_circ(1)
  30 .br
  31 create_bmp_for_circ_in_rect(1)
  32 .br
  33 create_bmp_for_microstrip_coupler(1)
  34 .br
  35 create_bmp_for_rect_cen_in_rect(1)
  36 .br
  37 create_bmp_for_rect_cen_in_rect_coupler(1)
  38 .br
  39 create_bmp_for_rect_in_circ(1)
  40 .br
  41 create_bmp_for_rect_in_rect(1)
  42 .br
  43 create_bmp_for_stripline_coupler(1)
  44 .br
  45 create_bmp_for_symmetrical_stripline(1)
  46 .br
  47 design_coupler(1)
  48 .br
  49 dualcoax(1)
  50 .br
  51 find_optimal_dimensions_for_microstrip_coupler(1)
  52 .br
  53 readbin(1)
  54 .P
  55 .br
  56 http://atlc.sourceforge.net      - Home page
  57 .br
  58 http://sourceforge.net/projects/atlc   - Download area
  59 .br
  60 /usr/local/share/atlc/docs/html-docs/index.html  - HTML docs
  61 .br
  62 /usr/local/share/atlc/docs/qex-december-1996/atlc.pdf - theory paper
  63 .br
  64 /usr/local/share/atlc/examples    - examples
  65 .br