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Text File  |  1996-06-22  |  807b  |  16 lines
  1. This routine designs a high-pass diplexer filter, that has a constant
  2. input impedance of Zo at all frequencies, both in the pass-band and in
  3. the stop-band. S11 is always good. S22 is poor in the stop-band.
  4. When used at a mixer termination, make the cutoff frequency sqrt(IF*Image)
  5. ----------------C----------------------------------
  6.                    |                          |
  7.                    |                          |
  8.                    |                          L
  9. 1 ->               |                          |        <- 2
  10.                    -----------                |
  11.                    |         |                |
  12.                    R         C                |
  13.                    |         |                |
  14. ------------------------------------------------------------
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