! SIEMENS Small Signal Semiconductors ! BFY450 ! Si NPN RF SIEGET Grounded Emitter Transistor in MICRO-X ! VCE = 3 V IC = 40 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 0.1033 -32.3 60.679 175.7 0.0017 66.1 0.8879 -5.3 0.020 0.1284 -53.3 59.558 170.3 0.0033 73.6 0.8873 -10.8 0.050 0.2463 -88.4 55.862 159.0 0.0076 71.8 0.8556 -27.3 0.100 0.4096 -115.8 48.540 142.4 0.0129 59.9 0.7689 -51.6 0.150 0.5097 -131.2 40.437 129.6 0.0169 52.8 0.6775 -70.5 0.200 0.5751 -141.5 34.237 120.6 0.0193 49.4 0.6085 -85.1 0.250 0.6103 -149.6 28.930 113.6 0.0212 46.3 0.5519 -97.3 0.300 0.6351 -154.9 25.034 108.5 0.0227 45.4 0.5199 -106.8 0.400 0.6638 -162.8 19.560 101.2 0.0249 46.3 0.4699 -121.3 0.500 0.6826 -167.9 15.771 95.5 0.0271 46.9 0.4440 -131.8 0.600 0.6917 -172.2 13.243 91.0 0.0299 48.6 0.4307 -139.7 0.700 0.6970 -175.7 11.390 86.9 0.0318 49.9 0.4253 -145.9 0.800 0.7057 -178.2 9.907 83.9 0.0350 50.6 0.4202 -151.3 0.900 0.7029 179.5 8.767 81.1 0.0381 51.9 0.4169 -155.6 1.000 0.7069 177.3 7.869 78.6 0.0403 52.5 0.4183 -158.9 1.100 0.7111 174.7 7.144 76.0 0.0433 53.9 0.4211 -162.3 1.200 0.7142 172.8 6.501 73.9 0.0461 54.7 0.4211 -165.3 1.300 0.7170 171.3 5.974 71.9 0.0492 54.1 0.4211 -168.0 1.400 0.7179 169.6 5.493 70.2 0.0518 54.4 0.4242 -170.2 1.500 0.7202 168.4 5.158 68.4 0.0552 54.4 0.4272 -172.5 1.600 0.7207 166.6 4.771 66.3 0.0585 54.2 0.4290 -174.8 1.700 0.7204 165.3 4.488 64.6 0.0614 54.5 0.4296 -176.9 1.800 0.7240 163.7 4.227 63.2 0.0641 53.8 0.4307 -178.6 1.900 0.7277 162.3 4.002 61.3 0.0676 53.8 0.4352 179.7 2.000 0.7279 161.2 3.777 59.9 0.0705 53.3 0.4362 177.9 2.200 0.7266 158.5 3.415 56.7 0.0769 52.4 0.4377 174.9 2.400 0.7265 155.8 3.145 53.4 0.0833 51.3 0.4418 171.6 2.600 0.7250 153.3 2.894 50.6 0.0895 50.2 0.4412 169.2 2.800 0.7272 150.8 2.695 47.7 0.0956 48.8 0.4442 166.2 3.000 0.7283 148.5 2.524 44.7 0.1028 47.5 0.4442 164.1 3.500 0.7303 141.8 2.173 37.6 0.1189 43.4 0.4501 157.7 4.000 0.7342 135.3 1.930 30.1 0.1360 38.6 0.4544 150.7 4.500 0.7388 128.7 1.743 22.6 0.1513 33.1 0.4579 144.5 5.000 0.7465 122.3 1.583 15.1 0.1660 27.8 0.4717 137.9 5.500 0.7450 114.8 1.439 8.1 0.1799 22.0 0.4777 131.0 6.000 0.7580 108.8 1.336 1.1 0.1925 16.7 0.4937 124.9 ! ! SIEMENS AG Semiconductor Group, Munich