. Circuit theory of linear noisy networks. Electronic circuits; Amplifiers (Electronics); Noise. 56 NOISE MEASURE [ that produced the canonical form, we obtain a 4w-terminal-pair network which has the same terminal behavior as the original dissipative im- bedding network. The resulting network is shown in Fig. It has 2n available terminal pairs. The 4w resistances can be comprised in a 4w-terminal-pair network with a characteristic-noise matrix, the eigen- ES 1 0——1 2 , 1 • . • ' n -1 -2 n • • ' -1 ' 2n 0 1 2n L. Passive dissipative 4re-terminal-pair imbedding network Fig. Imbedd
. Circuit theory of linear noisy networks. Electronic circuits; Amplifiers (Electronics); Noise. 56 NOISE MEASURE [ that produced the canonical form, we obtain a 4w-terminal-pair network which has the same terminal behavior as the original dissipative im- bedding network. The resulting network is shown in Fig. It has 2n available terminal pairs. The 4w resistances can be comprised in a 4w-terminal-pair network with a characteristic-noise matrix, the eigen- ES 1 0——1 2 , 1 • . • ' n -1 -2 n • • ' -1 ' 2n 0 1 2n L. Passive dissipative 4re-terminal-pair imbedding network Fig. Imbedding of n two-terminal-pair amplifiers in lossy 4«-terminal-pair network. values of which are all negative (Sec. ?>.?)). The n amplifiers can be grouped correspondingly into a 2w-terminal-pair network with a charac- teristic-noise matrix that has (in general, positive and negative) eigen- values equal to those of the characteristic-noise matrices of the original amplifiers. The network operation in Fig. is obtained from that corresponding to Fig. by a subsequent reduction from 6n to 2« output terminal pairs. Again, the least positive eigenvalue of the characteristic- noise matrix is not less than that of the best amplifier. Thus, we may state the following theorem: Consider a general lossless or passive dissipative interconnection of an arbitrary number of different and independently noisy two-terminal-pair amplifiers that results in a two-terminal-pair network. When the resulting two-terminal-pair network is driven from a source that has an internal. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haus, Hermann A; Adler, Richard B. [Cambridge] Technology Press of Massachusetts Institute of Technology
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