sym_strip(1)                General Commands Manual               sym_strip(1)

       sym_strip - bitmap generator for thin conductor betwen two infinite
       groundplanes (part of atlc)

       sym_strip  W H w bitmapfile

       This man page is not a complete set of documentation. See the html
       files for more complete information. So far, I've not managed to
       install the html files into /usr/local, so you will have to look into
       the atlc-X.Y.Z/docs/html-docs directory for them.

       sym_strip is a pre-processor for atlc, the finite difference programme
       that is used to calculate the properties of a two-conductor electrical
       transmission line of arbitrary cross section. The programme sym_strip
       is used as a fast way of generating bitmaps (there is no need to use a
       graphics programme), for a 1 pixel thick conductor of width w,
       centrally located inside a pair of groundplanes of width W and
       separation H. This has an exact analytical answer, when the inner is
       infinitely thin and the width W is infinitely wide. This theoretical
       impedance is also calculated by the sym_strip. It is therefore used as
       a test of atlc.

       -----------------------------------------------------  ^
       |                                                   |  |
       |                                                   |  |
       |              <----------w----------->             |  |
       |                                                   |  H
       |                                                   |  |
       |                                                   |  |
       -----------------------------------------------------  v

       The parameters 'W' and 'H' and the inner dimensions of the outer
       conductor.  The outer dimensions of the inner conductor are 'w' and
       'c'. The inner conductor is assumed to rest on a dielectric (Er2) which
       is 'd' wide and outer conductor an the inner conductor is offset 'b'
       from the left hand sidewall of the outer conductor. The whole region is
       surrounded by a dielectric of relative permittivity 'Er1'. The
       dielectrics 'Er1' and then 'Er1' and 'Er2' will both be 1.0

       The bitmaps produced by sym_strip are 24-bit bit colour bitmaps, as are
       required by atlc. Currenly sym_strip only produces bitmaps with white
       (vacuum) dielectrics.

       There are no options for sym_strip.

       atlc(1), rect_cen_in_rect(1), circ_in_circ(1). rect_in_rect(1),
       circ_in_rect(1).  rect_in_circ(1), readbin(1) and sym_strip(1).                - Home page       - Download area
       atlc-X.Y.Z/docs/html-docs/index.html       - HTML docs
       atlc-X.Y.Z/docs/qex-december-1996/atlc.pdf - theory paper
       atlc-X.Y.Z/examples                        - examples              - my home page          - ham radio pages

Dr. David Kirkby              atlc-3.0.1 29/3/02                  sym_strip(1)