! SIEMENS Small Signal Semiconductors
! BF998
! Si Dual Gate MOSFET Tetrode in SOT143
! VDS = 8 V     VG2S = 4 V     ID = 10 mA     
! Common Source S-Parameters:                           May  1988
# GHz  S  MA  R  50
!  f         S11            S21            S12            S22
! GHz     MAG   ANG      MAG   ANG      MAG   ANG      MAG   ANG
 0.050  0.9987   -3.1   2.250  175.4  0.0005   88.1  0.9944   -1.7
 0.060  0.9992   -3.7   2.253  174.5  0.0008   90.7  0.9944   -2.1
 0.070  0.9985   -4.4   2.252  173.5  0.0007   92.0  0.9945   -2.4
 0.080  0.9979   -5.0   2.251  172.6  0.0009   81.6  0.9940   -2.7
 0.090  0.9976   -5.6   2.253  171.6  0.0010   83.8  0.9942   -3.1
 0.100  0.9971   -6.2   2.253  170.6  0.0011   82.2  0.9942   -3.4
 0.150  0.9936   -9.4   2.249  165.7  0.0016   82.4  0.9935   -5.1
 0.200  0.9894  -12.4   2.240  160.9  0.0021   82.0  0.9927   -6.9
 0.250  0.9838  -15.5   2.230  156.0  0.0026   78.6  0.9912   -8.6
 0.300  0.9773  -18.5   2.210  151.2  0.0030   74.3  0.9899  -10.3
 0.400  0.9608  -24.5   2.165  141.7  0.0038   69.8  0.9857  -13.6
 0.500  0.9420  -30.3   2.111  132.4  0.0047   67.1  0.9823  -16.9
 0.600  0.9204  -36.0   2.058  123.5  0.0051   63.7  0.9787  -20.2
 0.700  0.8986  -41.7   1.999  114.6  0.0054   64.0  0.9752  -23.6
 0.800  0.8742  -47.2   1.932  106.1  0.0059   59.4  0.9692  -26.8
 0.900  0.8477  -52.5   1.868   97.7  0.0057   54.1  0.9651  -30.0
 1.000  0.8225  -57.7   1.810   89.6  0.0055   54.1  0.9610  -33.1
 1.200  0.7670  -68.3   1.699   73.1  0.0050   60.4  0.9522  -39.9
 1.400  0.7083  -78.3   1.565   57.1  0.0042   62.6  0.9408  -46.8
 1.500  0.6829  -82.8   1.506   49.7  0.0038   75.5  0.9382  -50.2
 1.600  0.6575  -87.0   1.454   42.4  0.0036   83.8  0.9372  -53.5
 1.800  0.6123  -95.8   1.374   27.6  0.0038  114.9  0.9348  -60.3
 2.000  0.5688 -105.2   1.304   12.2  0.0046  139.4  0.9318  -67.8
! 
!  f       Fmin   Gammaopt  rn/50
! GHz       dB    MAG  ANG    -
 0.010      3.00  0.80    1   3.40
 0.050      1.30  0.80    3   2.00
 0.100      0.80  0.80    6   1.40
 0.200      0.70  0.80   12   1.10
 0.450      1.00  0.78   27   1.00
 0.800      1.75  0.73   48   0.96
 0.900      2.00  0.71   53   0.94
 1.100      2.35  0.63   65   0.84
!
! SIEMENS AG  Semiconductor Group, Munich