! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 3 V IC = 8 mA ! Common Emitter S-Parameters: May 1997 # GHz S MA R 50 ! f S11 S21 S12 S22 ! GHz MAG ANG MAG ANG MAG ANG MAG ANG 0.010 0.7489 -2.5 17.875 178.2 0.0012 86.4 0.9847 -0.8 0.020 0.7462 -5.1 18.198 176.4 0.0028 91.7 0.9884 -1.8 0.050 0.7475 -12.3 17.787 171.8 0.0060 80.7 0.9798 -4.7 0.100 0.7322 -24.9 17.423 163.8 0.0116 79.7 0.9623 -9.2 0.150 0.7193 -37.0 16.789 156.1 0.0166 73.4 0.9351 -13.5 0.200 0.6981 -47.7 15.918 149.2 0.0218 66.9 0.9016 -17.1 0.250 0.6777 -57.8 14.990 143.0 0.0257 63.7 0.8670 -20.2 0.300 0.6495 -67.8 14.204 136.6 0.0293 59.1 0.8295 -22.7 0.400 0.6115 -84.1 12.465 126.8 0.0345 53.9 0.7619 -26.6 0.500 0.5788 -98.0 10.947 118.8 0.0380 49.3 0.7063 -29.2 0.600 0.5587 -109.2 9.704 112.1 0.0411 47.0 0.6636 -30.8 0.700 0.5407 -118.8 8.659 107.2 0.0436 45.1 0.6293 -32.1 0.800 0.5290 -127.0 7.749 102.1 0.0455 44.6 0.6022 -33.1 0.900 0.5170 -134.2 7.069 98.3 0.0480 43.7 0.5811 -34.1 1.000 0.5038 -139.6 6.451 94.5 0.0492 43.3 0.5655 -35.0 1.100 0.5062 -145.2 5.939 91.3 0.0509 43.3 0.5526 -35.8 1.200 0.5003 -149.7 5.497 88.0 0.0531 43.3 0.5432 -36.8 1.300 0.4980 -154.6 5.097 85.3 0.0554 43.4 0.5348 -37.7 1.400 0.4999 -158.3 4.768 82.3 0.0566 43.9 0.5291 -38.8 1.500 0.4963 -161.5 4.474 79.7 0.0584 43.9 0.5237 -39.9 1.600 0.4952 -164.7 4.208 77.5 0.0602 45.0 0.5204 -41.0 1.700 0.4955 -167.7 3.989 74.9 0.0620 45.1 0.5158 -42.1 1.800 0.4948 -170.6 3.761 73.0 0.0641 45.4 0.5142 -43.3 1.900 0.4935 -172.2 3.582 70.7 0.0658 45.2 0.5124 -44.5 2.000 0.4942 -175.0 3.423 68.4 0.0683 45.9 0.5119 -45.8 2.200 0.4940 -179.6 3.133 64.3 0.0723 46.4 0.5119 -48.3 2.400 0.4959 176.6 2.868 60.7 0.0765 46.6 0.5116 -50.9 2.600 0.4924 173.3 2.672 56.7 0.0807 47.2 0.5130 -53.5 2.800 0.4959 169.5 2.494 53.4 0.0857 47.1 0.5161 -56.1 3.000 0.4939 165.9 2.338 49.6 0.0901 47.0 0.5194 -58.8 3.500 0.4932 158.2 2.036 41.2 0.1024 46.7 0.5289 -65.5 4.000 0.4934 150.4 1.811 32.8 0.1155 45.4 0.5412 -72.6 4.500 0.4949 142.4 1.632 24.6 0.1295 43.5 0.5548 -80.0 5.000 0.4938 134.6 1.478 16.7 0.1440 41.4 0.5692 -87.7 5.500 0.4990 126.5 1.353 8.6 0.1587 38.8 0.5805 -95.7 6.000 0.5104 118.9 1.250 1.6 0.1739 35.6 0.5892 -103.7 ! ! SIEMENS AG Semiconductor Group, Munich