! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 6 V IC = 0.7 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 0.9777 -0.4 2.458 179.7 0.0013 92.2 0.9976 -0.3 0.020 0.9740 -1.3 2.471 178.9 0.0025 89.0 0.9999 -0.7 0.050 0.9772 -3.1 2.444 177.5 0.0064 90.1 0.9979 -1.4 0.100 0.9770 -6.1 2.473 174.9 0.0128 86.5 0.9956 -3.0 0.150 0.9814 -9.7 2.435 172.2 0.0194 83.9 0.9976 -4.5 0.200 0.9712 -12.2 2.445 169.3 0.0255 82.4 0.9935 -5.9 0.250 0.9690 -15.3 2.433 167.0 0.0323 80.6 0.9941 -7.5 0.300 0.9637 -18.4 2.420 163.9 0.0382 77.6 0.9895 -8.9 0.400 0.9543 -24.4 2.397 158.8 0.0508 74.3 0.9843 -11.8 0.500 0.9445 -30.4 2.385 153.2 0.0620 69.5 0.9737 -14.7 0.600 0.9311 -36.3 2.331 147.9 0.0727 65.8 0.9641 -17.4 0.700 0.9157 -41.9 2.273 143.7 0.0835 61.9 0.9544 -20.1 0.800 0.8998 -47.6 2.216 138.5 0.0924 58.2 0.9410 -22.7 0.900 0.8808 -53.0 2.198 134.1 0.1018 54.8 0.9305 -25.2 1.000 0.8644 -58.3 2.138 129.5 0.1093 51.3 0.9164 -27.7 1.100 0.8501 -63.6 2.083 125.3 0.1161 48.2 0.9031 -29.9 1.200 0.8334 -68.4 2.022 121.0 0.1230 44.9 0.8916 -32.3 1.300 0.8150 -73.3 1.963 117.2 0.1286 42.0 0.8784 -34.3 1.400 0.8040 -78.2 1.902 113.1 0.1334 39.2 0.8660 -36.5 1.500 0.7888 -82.6 1.862 109.1 0.1379 36.6 0.8558 -38.4 1.600 0.7715 -87.1 1.810 105.6 0.1418 34.6 0.8453 -40.3 1.700 0.7563 -91.8 1.778 101.9 0.1446 32.1 0.8319 -42.1 1.800 0.7371 -95.8 1.727 98.3 0.1476 30.1 0.8231 -43.8 1.900 0.7286 -99.4 1.678 95.1 0.1499 27.6 0.8151 -45.7 2.000 0.7116 -103.7 1.636 91.1 0.1526 25.9 0.8083 -47.2 2.200 0.6934 -110.4 1.546 85.1 0.1562 22.1 0.7968 -50.6 2.400 0.6728 -117.4 1.451 79.3 0.1568 19.0 0.7805 -53.7 2.600 0.6602 -123.3 1.384 73.7 0.1583 16.2 0.7726 -56.5 2.800 0.6432 -129.7 1.322 68.8 0.1591 13.9 0.7652 -59.4 3.000 0.6315 -135.1 1.253 63.6 0.1588 11.3 0.7602 -62.4 3.500 0.5998 -148.2 1.136 51.9 0.1587 6.7 0.7532 -69.2 4.000 0.5813 -160.2 1.036 41.1 0.1552 3.4 0.7509 -76.3 4.500 0.5683 -172.3 0.958 31.4 0.1515 1.1 0.7543 -83.6 5.000 0.5533 176.7 0.886 22.0 0.1477 -0.4 0.7622 -91.2 5.500 0.5482 165.2 0.822 12.8 0.1446 -0.3 0.7650 -99.2 6.000 0.5400 154.3 0.768 5.1 0.1431 0.8 0.7650 -107.1 ! ! SIEMENS AG Semiconductor Group, Munich