4
HBFP-0405 Typical Scattering Parameters,
VCE = 2 V, IC = 5 mA, TC = 25°C
Freq. S11 S21 S12 S22
GHz Mag Ang dB Mag Ang dB Mag Ang Mag Ang
0.1 0.819 -6.2 22.0 12.630 174.5 -50.2 0.003 87.8 0.990 -2.8
0.5 0.775 -30.3 21.5 11.912 153.5 -36.2 0.016 77.1 0.959 -13.4
0.9 0.704 -52.4 20.6 10.664 134.9 -31.5 0.027 67.3 0.897 -23.3
1.0 0.681 -57.2 20.3 10.308 130.7 -30.8 0.029 64.9 0.875 -25.5
1.5 0.585 -81.5 18.8 8.689 111.9 -28.1 0.039 54.0 0.783 -35.2
1.8 0.531 -94.5 17.9 7.817 102.5 -27.2 0.044 49.0 0.733 -40.1
2.0 0.500 -102.7 17.3 7.306 96.7 -26.6 0.047 46.0 0.703 -43.0
2.5 0.440 -121.3 15.9 6.208 83.7 -25.6 0.053 39.9 0.641 -49.4
3.0 0.392 -138.9 14.6 5.362 72.4 -24.8 0.057 34.6 0.597 -55.0
3.5 0.360 -154.1 13.5 4.716 62.3 -24.2 0.061 30.4 0.566 -59.7
4.0 0.334 -168.9 12.5 4.214 52.9 -23.6 0.066 26.5 0.541 -64.2
4.5 0.315 177.0 11.6 3.814 44.3 -23.1 0.070 23.0 0.528 -68.6
5.0 0.302 162.5 10.9 3.491 35.7 -22.5 0.075 19.0 0.513 -73.0
5.5 0.295 148.1 10.2 3.229 27.4 -22.0 0.079 15.1 0.499 -77.0
6.0 0.301 133.7 9.6 3.010 19.0 -21.5 0.084 11.1 0.484 -82.0
6.5 0.311 120.4 9.0 2.827 10.8 -21.0 0.089 6.4 0.463 -86.1
7.0 0.327 105.9 8.5 2.668 2.6 -20.5 0.095 2.1 0.439 -90.5
7.5 0.346 94.0 8.0 2.520 -5.8 -20.0 0.101 -3.0 0.414 -95.4
8.0 0.369 83.4 7.6 2.389 -13.8 -19.5 0.106 -7.7 0.389 -101.6
8.5 0.392 74.1 7.1 2.261 -21.9 -19.1 0.110 -12.8 0.370 -108.5
9.0 0.410 65.6 6.6 2.141 -29.9 -18.7 0.116 -18.0 0.357 -115.8
9.5 0.428 56.9 6.2 2.038 -38.0 -18.4 0.120 -23.1 0.345 -122.3
10.0 0.446 48.2 5.7 1.937 -46.0 -18.1 0.124 -28.5 0.334 -127.9
HBFP-0405 Noise Parameters: VCE = 2 V, IC = 5 mA
Freq. Fmin Γopt RNGa
GHz dB Mag Ang ΩdB
0.9 1.36 0.386 2.8 17.0 25.59
1.0 1.38 0.375 5.0 16.8 24.76
1.5 1.46 0.333 17.7 16.2 21.56
1.8 1.52 0.305 25.5 15.6 20.12
2.0 1.55 0.292 31.9 15.3 19.29
2.5 1.65 0.246 50.0 13.8 17.61
3.0 1.73 0.208 59.9 13.1 16.04
3.5 1.79 0.187 73.6 12.6 14.81
4.0 1.93 0.153 85.6 12.0 13.76
4.5 1.99 0.123 100.2 11.8 12.90
5.0 2.08 0.104 119.5 11.3 12.12
5.5 2.18 0.065 141.5 12.0 11.45
6.0 2.32 0.051 -169.0 12.7 10.87
6.5 2.37 0.068 -129.9 13.5 10.32
7.0 2.48 0.101 -96.3 15.2 9.82
7.5 2.56 0.133 -82.9 17.0 9.33
8.0 2.69 0.177 -71.2 19.7 8.92
8.5 2.85 0.212 -62.8 22.8 8.50
9.0 2.99 0.246 -54.1 26.7 8.10
9.5 3.10 0.282 -46.1 30.9 7.77
10.0 3.12 0.314 -37.3 35.2 7.41
S and noise parameters are measured
on a microstrip line made on
0.025 inch thick alumina carrier. The
input reference plane is at the end of
the base lead, the output reference
plane is at the end of the collector
lead. S and noise parameters include
the effect of four plated through via
holes connecting emitter landing pads
on the top of test carrier to the
microstrip ground plane on the
bottom side of the carrier. Two
0.020 inch diameter via holes are
placed within 0.010 inch from each
emitter lead contact point, one via on
each side of that point.