! SIEMENS Small Signal Semiconductors ! BFY450 ! Si NPN RF SIEGET Grounded Emitter Transistor in MICRO-X ! VCE = 3 V IC = 55 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 0.0591 -118.2 66.976 175.4 0.0015 73.5 0.8655 -5.5 0.020 0.1080 -112.8 65.861 169.8 0.0028 76.9 0.8656 -11.5 0.050 0.2505 -115.5 61.224 157.9 0.0064 66.8 0.8349 -29.6 0.100 0.4223 -131.0 52.280 140.4 0.0117 59.2 0.7446 -55.7 0.150 0.5236 -142.5 42.989 127.6 0.0147 53.3 0.6552 -75.5 0.200 0.5878 -150.2 35.990 118.7 0.0167 50.7 0.5905 -90.5 0.250 0.6203 -156.5 30.233 112.0 0.0185 48.4 0.5391 -102.8 0.300 0.6436 -160.8 26.082 107.1 0.0199 49.2 0.5112 -112.3 0.400 0.6666 -167.4 20.239 100.0 0.0221 50.4 0.4693 -126.6 0.500 0.6870 -171.6 16.292 94.6 0.0249 52.3 0.4482 -136.7 0.600 0.6960 -175.4 13.639 90.2 0.0272 54.0 0.4373 -144.1 0.700 0.6986 -178.3 11.733 86.3 0.0303 55.3 0.4353 -150.0 0.800 0.7049 179.5 10.207 83.4 0.0334 55.6 0.4318 -155.0 0.900 0.7019 177.3 9.022 80.8 0.0366 56.8 0.4292 -159.1 1.000 0.7105 175.3 8.096 78.3 0.0392 58.1 0.4310 -162.4 1.100 0.7121 172.8 7.345 75.8 0.0428 58.1 0.4347 -165.5 1.200 0.7163 171.2 6.680 73.8 0.0460 58.1 0.4347 -168.4 1.300 0.7150 169.7 6.140 71.8 0.0491 58.0 0.4350 -170.9 1.400 0.7193 168.5 5.646 70.2 0.0517 58.4 0.4381 -173.0 1.500 0.7178 167.1 5.312 68.4 0.0553 58.0 0.4414 -175.2 1.600 0.7227 165.3 4.905 66.4 0.0586 57.4 0.4431 -177.4 1.700 0.7225 164.0 4.614 64.8 0.0618 57.8 0.4441 -179.4 1.800 0.7230 162.4 4.346 63.4 0.0645 56.8 0.4444 178.9 1.900 0.7253 161.2 4.113 61.7 0.0681 56.4 0.4484 177.3 2.000 0.7271 160.1 3.885 60.1 0.0714 55.8 0.4498 175.5 2.200 0.7280 157.5 3.518 57.1 0.0779 54.6 0.4510 172.6 2.400 0.7277 154.9 3.235 53.8 0.0847 53.3 0.4548 169.4 2.600 0.7245 152.4 2.979 51.1 0.0912 51.9 0.4540 167.0 2.800 0.7251 149.9 2.775 48.3 0.0974 50.5 0.4569 164.1 3.000 0.7262 147.4 2.601 45.3 0.1044 48.9 0.4565 161.9 3.500 0.7259 141.2 2.240 38.5 0.1211 44.4 0.4623 155.5 4.000 0.7313 134.6 1.987 30.8 0.1384 39.4 0.4650 148.6 4.500 0.7351 128.2 1.796 23.6 0.1544 33.7 0.4681 142.5 5.000 0.7412 121.8 1.637 16.1 0.1690 28.2 0.4807 135.9 5.500 0.7426 114.5 1.483 9.1 0.1832 22.3 0.4859 129.0 6.000 0.7555 108.3 1.381 2.1 0.1957 16.8 0.5015 123.0 ! ! SIEMENS AG Semiconductor Group, Munich