diff options
Diffstat (limited to 'cad/transcalc/patches/patch-aa')
| -rw-r--r-- | cad/transcalc/patches/patch-aa | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/cad/transcalc/patches/patch-aa b/cad/transcalc/patches/patch-aa index f60a618bdda..403952ad5f8 100644 --- a/cad/transcalc/patches/patch-aa +++ b/cad/transcalc/patches/patch-aa @@ -1,14 +1,16 @@ -$NetBSD: patch-aa,v 1.1.1.1 2003/03/23 12:25:03 dmcmahill Exp $ +$NetBSD: patch-aa,v 1.2 2004/11/30 00:27:35 dmcmahill Exp $ fixes minor bug in the computation. Correct constant (0.7913) found in original reference for this model. ---- src/c_microstrip.c.orig Tue May 28 15:59:49 2002 -+++ src/c_microstrip.c Wed Jan 15 05:32:42 2003 -@@ -217,5 +235,5 @@ +--- src/c_microstrip.c.orig Thu Jul 25 19:48:39 2002 ++++ src/c_microstrip.c +@@ -520,7 +520,7 @@ static void er_eff_freq(c_microstrip * c + er_eff = c_ms->er_eff_o_0; P_8 = 0.7168 * (1.0 + 1.076 / (1.0 + 0.0576 * (er - 1.0))); - P_9 = P_8 - 0.7193 * (1.0 - exp(-pow(f_n / 20.0, 1.424))) * atan(2.481 * pow(er / 8.0, 0.946)); + P_9 = P_8 - 0.7913 * (1.0 - exp(-pow(f_n / 20.0, 1.424))) * atan(2.481 * pow(er / 8.0, 0.946)); P_10 = 0.242 * pow(er - 1.0, 0.55); P_11 = 0.6366 * (exp(-0.3401 * f_n) - 1.0) * atan(1.263 * pow(u / 3.0, 1.629)); + P_12 = P_9 + (1.0 - P_9) / (1.0 + 1.183 * pow(u, 1.376)); |