! SIEMENS Small Signal Semiconductors ! BFY450 ! Si NPN RF SIEGET Grounded Emitter Transistor in MICRO-X ! VCE = 1.5 V IC = 22 mA ! Common Emitter S-Parameters: October 1996 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.3408 -12.5 46.817 176.4 0.0019 91.4 0.9536 -5.3 0.020 0.3445 -25.0 46.337 171.0 0.0049 81.2 0.9485 -10.8 0.050 0.3914 -54.4 43.414 159.8 0.0111 73.1 0.9157 -26.8 0.100 0.4879 -91.4 38.220 143.6 0.0198 59.5 0.8284 -50.5 0.150 0.5576 -113.4 32.103 130.6 0.0254 50.6 0.7328 -69.2 0.200 0.6159 -127.6 27.370 121.6 0.0287 45.8 0.6599 -83.7 0.250 0.6428 -137.8 23.231 114.4 0.0312 40.3 0.5988 -96.0 0.300 0.6668 -145.3 20.178 109.2 0.0329 38.4 0.5641 -105.7 0.400 0.6911 -155.5 15.795 101.6 0.0349 36.1 0.5090 -120.4 0.500 0.7039 -161.9 12.722 95.9 0.0369 35.8 0.4784 -131.1 0.600 0.7161 -167.3 10.701 91.1 0.0390 36.3 0.4624 -139.1 0.700 0.7252 -171.0 9.220 86.9 0.0410 37.6 0.4561 -145.6 0.800 0.7264 -174.4 8.010 83.8 0.0431 37.7 0.4502 -151.0 0.900 0.7236 -177.0 7.088 81.0 0.0451 39.2 0.4449 -155.4 1.000 0.7271 179.8 6.371 78.4 0.0473 40.3 0.4452 -158.8 1.100 0.7343 177.3 5.788 75.7 0.0497 41.1 0.4479 -162.2 1.200 0.7385 175.4 5.267 73.6 0.0516 42.4 0.4467 -165.2 1.300 0.7381 173.6 4.843 71.5 0.0542 42.5 0.4462 -167.9 1.400 0.7397 171.6 4.460 69.7 0.0564 43.6 0.4494 -170.1 1.500 0.7435 170.2 4.192 67.8 0.0595 43.8 0.4525 -172.5 1.600 0.7445 168.7 3.879 65.8 0.0623 44.0 0.4535 -174.7 1.700 0.7435 167.1 3.646 63.9 0.0646 44.6 0.4535 -176.8 1.800 0.7480 165.2 3.437 62.4 0.0667 44.4 0.4546 -178.5 1.900 0.7502 163.7 3.258 60.6 0.0702 44.8 0.4589 179.8 2.000 0.7521 162.5 3.075 59.0 0.0729 44.5 0.4596 178.0 2.200 0.7498 159.8 2.787 55.7 0.0785 44.3 0.4611 175.1 2.400 0.7515 156.8 2.570 52.2 0.0844 44.0 0.4651 171.8 2.600 0.7494 154.4 2.365 49.3 0.0903 43.3 0.4652 169.5 2.800 0.7511 151.7 2.207 46.4 0.0963 42.4 0.4679 166.5 3.000 0.7529 149.3 2.069 43.3 0.1029 41.7 0.4685 164.4 3.500 0.7546 142.5 1.785 35.9 0.1185 38.5 0.4754 157.9 4.000 0.7600 135.7 1.592 28.0 0.1349 34.6 0.4813 151.1 4.500 0.7637 129.1 1.437 20.3 0.1502 29.5 0.4862 144.9 5.000 0.7695 122.4 1.311 12.8 0.1650 24.7 0.5016 138.3 5.500 0.7714 114.8 1.194 5.6 0.1787 19.4 0.5082 131.3 6.000 0.7868 108.5 1.107 -1.7 0.1916 14.3 0.5244 125.2 ! ! SIEMENS AG Semiconductor Group, Munich