! SIEMENS Small Signal Semiconductors ! BFY450 ! Si NPN RF SIEGET Grounded Emitter Transistor in MICRO-X ! VCE = 1.5 V IC = 45 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 0.0883 -54.8 63.795 175.1 0.0020 95.9 0.9047 -6.8 0.020 0.1351 -77.0 62.788 169.0 0.0036 89.3 0.9032 -14.0 0.050 0.2873 -102.6 57.665 155.7 0.0090 70.6 0.8634 -34.9 0.100 0.4777 -127.2 48.028 137.1 0.0145 58.4 0.7655 -64.2 0.150 0.5786 -141.3 38.396 124.4 0.0181 49.9 0.6752 -85.6 0.200 0.6318 -150.0 31.687 115.7 0.0196 47.1 0.6172 -101.1 0.250 0.6590 -156.6 26.338 109.2 0.0214 44.9 0.5745 -113.5 0.300 0.6821 -161.4 22.565 104.7 0.0232 45.1 0.5523 -122.8 0.400 0.7038 -167.9 17.410 98.2 0.0251 46.1 0.5204 -136.3 0.500 0.7181 -172.1 13.965 93.2 0.0281 47.7 0.5040 -145.6 0.600 0.7224 -175.6 11.679 89.0 0.0310 49.8 0.4965 -152.2 0.700 0.7306 -178.9 10.027 85.2 0.0333 51.1 0.4957 -157.6 0.800 0.7323 179.3 8.706 82.6 0.0365 51.4 0.4939 -162.0 0.900 0.7298 176.9 7.696 80.0 0.0396 52.4 0.4920 -165.7 1.000 0.7340 174.2 6.911 77.7 0.0425 53.9 0.4937 -168.5 1.100 0.7395 172.5 6.274 75.2 0.0454 54.5 0.4976 -171.4 1.200 0.7418 170.6 5.705 73.4 0.0489 55.3 0.4983 -174.0 1.300 0.7438 169.3 5.253 71.4 0.0525 54.6 0.4986 -176.3 1.400 0.7438 167.8 4.826 69.9 0.0549 55.0 0.5014 -178.3 1.500 0.7446 166.4 4.542 68.1 0.0584 54.9 0.5045 179.7 1.600 0.7451 164.9 4.204 66.1 0.0616 54.8 0.5050 177.7 1.700 0.7459 163.5 3.953 64.5 0.0656 54.7 0.5059 175.8 1.800 0.7457 162.1 3.726 63.2 0.0679 54.0 0.5062 174.4 1.900 0.7522 160.7 3.535 61.4 0.0718 53.6 0.5101 172.8 2.000 0.7516 159.5 3.338 60.0 0.0750 53.0 0.5110 171.1 2.200 0.7531 157.0 3.027 56.9 0.0819 52.1 0.5112 168.3 2.400 0.7485 154.2 2.788 53.6 0.0886 50.8 0.5148 165.3 2.600 0.7472 151.9 2.574 50.9 0.0949 49.6 0.5133 163.0 2.800 0.7486 149.2 2.401 48.0 0.1018 48.0 0.5157 160.1 3.000 0.7505 146.9 2.250 45.1 0.1090 46.6 0.5155 158.0 3.500 0.7501 140.4 1.949 38.1 0.1264 42.4 0.5202 151.7 4.000 0.7533 133.9 1.732 30.5 0.1437 37.2 0.5236 144.8 4.500 0.7563 127.5 1.569 23.1 0.1603 31.3 0.5254 138.6 5.000 0.7609 121.1 1.432 15.5 0.1752 25.8 0.5371 132.0 5.500 0.7636 113.6 1.304 8.8 0.1889 19.9 0.5403 125.2 6.000 0.7747 107.2 1.215 1.7 0.2016 14.3 0.5535 119.2 ! ! SIEMENS AG Semiconductor Group, Munich