! SIEMENS Discrete & RF Semiconductors ! BFY181 ! Si NPN RF Bipolar Junction Transistor in MICRO-X ! VCE = 2 V IC = 0.9 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 0.9704 -0.6 3.106 179.8 0.0010 86.5 0.9978 -0.4 0.020 0.9642 -1.3 3.143 178.8 0.0028 89.1 0.9999 -0.7 0.050 0.9675 -3.5 3.076 177.2 0.0069 86.7 0.9967 -1.7 0.100 0.9679 -7.2 3.121 174.2 0.0137 86.2 0.9969 -3.4 0.150 0.9664 -11.0 3.083 171.2 0.0211 84.2 0.9963 -5.1 0.200 0.9626 -14.4 3.064 168.0 0.0277 81.1 0.9925 -6.7 0.250 0.9561 -18.2 3.061 165.3 0.0346 78.8 0.9895 -8.5 0.300 0.9548 -21.4 3.054 161.9 0.0409 76.0 0.9834 -10.1 0.400 0.9402 -28.5 2.983 156.1 0.0540 71.4 0.9746 -13.3 0.500 0.9215 -35.6 2.960 150.2 0.0658 67.2 0.9614 -16.5 0.600 0.8992 -42.4 2.895 144.1 0.0769 62.8 0.9475 -19.5 0.700 0.8866 -48.8 2.793 139.7 0.0865 58.4 0.9318 -22.5 0.800 0.8618 -54.9 2.697 134.1 0.0956 54.9 0.9145 -25.1 0.900 0.8442 -61.0 2.628 129.5 0.1044 51.0 0.8989 -27.7 1.000 0.8237 -66.6 2.556 124.6 0.1115 47.5 0.8825 -30.2 1.100 0.8023 -72.4 2.465 120.3 0.1177 44.4 0.8667 -32.5 1.200 0.7853 -77.7 2.386 115.8 0.1238 41.1 0.8524 -34.9 1.300 0.7680 -83.1 2.304 111.7 0.1281 38.4 0.8358 -36.8 1.400 0.7539 -88.0 2.221 107.7 0.1321 35.5 0.8220 -39.0 1.500 0.7353 -93.0 2.149 103.8 0.1358 33.0 0.8090 -40.8 1.600 0.7207 -97.2 2.071 100.4 0.1385 31.2 0.7975 -42.7 1.700 0.7147 -102.0 2.011 96.8 0.1411 28.9 0.7847 -44.4 1.800 0.6892 -106.7 1.946 93.2 0.1437 27.2 0.7763 -45.9 1.900 0.6816 -110.1 1.886 90.1 0.1450 25.0 0.7682 -47.7 2.000 0.6653 -114.2 1.832 86.3 0.1474 23.4 0.7612 -49.2 2.200 0.6501 -121.1 1.711 80.4 0.1492 20.1 0.7484 -52.5 2.400 0.6328 -128.3 1.604 74.8 0.1493 17.5 0.7342 -55.4 2.600 0.6202 -133.9 1.514 69.5 0.1503 15.2 0.7264 -58.2 2.800 0.6063 -140.1 1.444 64.8 0.1507 13.4 0.7207 -61.0 3.000 0.5977 -145.3 1.362 59.7 0.1498 11.3 0.7160 -63.9 3.500 0.5705 -158.2 1.222 48.5 0.1499 8.1 0.7118 -70.6 4.000 0.5611 -169.5 1.112 38.1 0.1475 5.8 0.7113 -77.8 4.500 0.5496 178.8 1.023 28.4 0.1461 4.3 0.7178 -85.1 5.000 0.5364 168.1 0.938 19.5 0.1447 3.7 0.7268 -92.8 5.500 0.5354 157.2 0.868 10.3 0.1441 4.4 0.7300 -100.8 6.000 0.5319 146.3 0.812 2.8 0.1467 5.5 0.7315 -108.8 ! ! SIEMENS AG Semiconductor Group, Munich