s21abs

程序计算了国产矩形波导BJ-100的传输特性。通过查阅资料可以知道BJ-100波导管的结构参数为频率范围（8.2GHz~12.5GHz）结构参数a=22.86mm,b=10.16mm FDTD计算

  -12.7609097537999     
  -10.8031089174058     
  -8.74335133950561     
  -6.60750800343901     
  -4.45355092002771     
  -2.43986974921571     
 -0.860375976323810     
 -6.265427962825015E-003
  7.899013686799533E-002
 -0.351304659572048     
 -0.979069031187854     
  -1.60502254891911     
  -2.14135514923069     
  -2.55659208168300     
  -2.84614177926052     
  -3.01748984977841     
  -3.08197363113552     
  -3.05153191436256     
  -2.93822238250502     
  -2.75419169361573     
  -2.51170193165185     
  -2.22348594507727     
  -1.90315579540583     
  -1.56532976619309     
  -1.22550683010073     
 -0.899676644715538     
 -0.603456320846493     
 -0.350768915398307     
 -0.152391842010760     
 -1.470415941024543E-002
  6.106061119854461E-002
  7.870923176429681E-002
  4.611079305035426E-002
 -2.623547231090292E-002
 -0.126698760051686     
 -0.243872327531529     
 -0.367518009060552     
 -0.488982473829229     
 -0.601368305451537     
 -0.699608023151640     
 -0.780235079613343     
 -0.841045738402947     
 -0.881207630025272     
 -0.901404656934820     
 -0.903023905907415     
 -0.885813550445400     
 -0.846889040828687     
 -0.789847542439959     
 -0.720202273988183     
 -0.641154427431293     
 -0.558131823200491     
 -0.473075380822847     
 -0.387523207090824     
 -0.308548445859215     
 -0.235818743084455     
 -0.170514910802968     
 -0.119218038444603     
 -7.816524348314646E-002
 -4.921524162583228E-002
 -3.675980647395628E-002
 -3.377726888554551E-002