! SIEMENS Small Signal Semiconductors ! BFY450 ! Si NPN RF SIEGET Grounded Emitter Transistor in MICRO-X ! VCE = 3.5 V IC = 8 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 0.6867 -4.8 23.857 178.2 0.0026 67.1 0.9731 -2.6 0.020 0.6854 -9.2 23.803 174.5 0.0046 75.7 0.9660 -4.9 0.050 0.6812 -22.1 22.909 167.6 0.0114 73.8 0.9563 -12.4 0.100 0.6903 -43.1 22.014 157.1 0.0226 67.5 0.9178 -24.3 0.150 0.6810 -61.3 20.366 146.1 0.0315 59.4 0.8588 -35.1 0.200 0.6939 -76.9 18.839 138.0 0.0385 52.9 0.8001 -44.2 0.250 0.6918 -90.4 17.092 130.0 0.0436 47.1 0.7343 -52.4 0.300 0.6954 -101.5 15.564 123.7 0.0479 42.4 0.6826 -59.5 0.400 0.7014 -118.5 12.954 113.9 0.0528 35.2 0.5873 -71.0 0.500 0.7022 -130.6 10.818 105.7 0.0559 30.3 0.5189 -79.9 0.600 0.7127 -140.3 9.334 99.4 0.0581 27.4 0.4702 -87.6 0.700 0.7169 -147.6 8.167 93.8 0.0589 25.0 0.4366 -94.4 0.800 0.7196 -153.1 7.156 89.5 0.0606 23.2 0.4096 -100.3 0.900 0.7149 -157.6 6.361 85.6 0.0611 22.4 0.3889 -105.1 1.000 0.7223 -162.3 5.744 82.0 0.0612 22.0 0.3772 -109.7 1.100 0.7276 -166.6 5.233 78.6 0.0616 21.8 0.3686 -114.4 1.200 0.7320 -169.6 4.767 75.7 0.0622 21.9 0.3605 -118.4 1.300 0.7347 -172.5 4.390 73.0 0.0627 21.6 0.3536 -122.1 1.400 0.7352 -175.0 4.038 70.6 0.0627 21.7 0.3524 -125.5 1.500 0.7403 -177.2 3.790 68.4 0.0634 22.4 0.3511 -129.2 1.600 0.7409 -179.8 3.510 65.7 0.0643 23.2 0.3472 -132.3 1.700 0.7419 178.0 3.298 63.5 0.0647 23.7 0.3459 -135.3 1.800 0.7450 175.8 3.099 61.6 0.0653 23.8 0.3461 -137.7 1.900 0.7484 173.9 2.934 59.4 0.0664 24.6 0.3501 -140.4 2.000 0.7486 172.2 2.770 57.4 0.0675 25.0 0.3484 -143.0 2.200 0.7531 168.7 2.501 53.5 0.0695 26.6 0.3525 -147.1 2.400 0.7539 165.3 2.294 49.6 0.0720 27.6 0.3566 -151.5 2.600 0.7530 162.2 2.108 46.2 0.0747 29.0 0.3604 -155.0 2.800 0.7570 159.2 1.961 42.9 0.0781 29.8 0.3637 -158.8 3.000 0.7625 156.2 1.831 39.4 0.0820 31.0 0.3693 -161.5 3.500 0.7641 148.7 1.569 31.4 0.0924 31.9 0.3826 -169.6 4.000 0.7728 141.3 1.388 23.0 0.1047 31.7 0.3970 -177.7 4.500 0.7813 134.0 1.245 14.9 0.1182 29.9 0.4135 175.0 5.000 0.7916 126.9 1.131 6.9 0.1325 27.4 0.4380 166.6 5.500 0.7942 118.9 1.021 -0.4 0.1476 23.8 0.4534 158.2 6.000 0.8091 111.8 0.944 -7.7 0.1618 19.9 0.4806 150.3 ! ! SIEMENS AG Semiconductor Group, Munich