NAME

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


SYNOPSIS

     create_bmp_for_symmetical_stripline  W H w bitmapfile


WARNING

     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.


DESCRIPTION

     create_bmp_for_symmetical_stripline is a  pre-processor  for
     atlc, the finite difference programme that is used to calcu-
     late the properties of a two-conductor electrical  transmis-
     sion   line   of  arbitrary  cross  section.  The  programme
     create_bmp_for_symmetical_stripline is used as a fast way of
     generating  bitmaps (there is no need to use a graphics pro-
     gramme), for a 1 pixel thick conductor of width w, centrally
     located inside a pair of groundplanes of width W and separa-
     tion 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
     create_bmp_for_symmetical_stripline. It is therefore used as
     a test of atlc.

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

     The parameters 'W' and 'H' and the inner dimensions  of  the
     outer  conductor.  The outer dimensions of the inner conduc-
     tor 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 sur-
     rounded by a dielectric of relative permittivity 'Er1'.  The
     dielectrics 'Er1' and then 'Er1' and 'Er2' will both be 1.0

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



OPTIONS

     There          are          no          options          for
     create_bmp_for_symmetical_stripline.


SEE ALSO

     atlc(1)                       create_bmp_for_circ_in_circ(1)
     create_bmp_for_circ_in_rect(1)
     create_bmp_for_microstrip_coupler(1)
     create_bmp_for_rect_cen_in_rect(1)
     create_bmp_for_rect_cen_in_rect_coupler(1)
     create_bmp_for_rect_in_circ(1)
     create_bmp_for_rect_in_rect(1)
     create_bmp_for_stripline_coupler(1)        design_coupler(1)
     find_optimal_dimensions_for_microstrip_coupler(1) readbin(1)

     http://atlc.sourceforge.net                - Home page
     http://sourceforge.net/projects/atlc       - 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
     http://www.david-kirkby.co.uk              - my home page
     http://www.david-kirkby.co.uk/ham          - ham radio pages




























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