001387420 000__ 05596cam\a2200469K\\4500 001387420 001__ 1387420 001387420 003__ MaCbMITP 001387420 005__ 20240325105113.0 001387420 006__ m\\\\\o\\d\\\\\\\\ 001387420 007__ cr\bn\nnnunnun 001387420 007__ cr\bn\nnnunnun 001387420 008__ 100410s1959\\\\maua\\\\o\\\\\000\0\eng\d 001387420 020__ $$a0262310791$$q(electronic bk.) 001387420 020__ $$a9780262310796$$q(electronic bk.) 001387420 035__ $$a(OCoLC)606335121$$z(OCoLC)670069775$$z(OCoLC)1011786418$$z(OCoLC)1042115492 001387420 035__ $$a(OCoLC-P)606335121 001387420 040__ $$aOCoLC-P$$beng$$epn$$cOCoLC-P 001387420 050_4 $$aTK7870$$b.H33 001387420 08204 $$a621.3815 001387420 1001_ $$aHaus, Hermann A. 001387420 24510 $$aCircuit theory of linear noisy networks$$cby Hermann A. Haus [and] Richard B. Adler. 001387420 260__ $$a[Cambridge]$$bTechnology Press of Massachusetts Institute of Technology$$c[1959] 001387420 300__ $$a1 online resource (79 pages)$$billustrations. 001387420 336__ $$atext$$btxt$$2rdacontent 001387420 337__ $$acomputer$$bc$$2rdamedia 001387420 338__ $$aonline resource$$bcr$$2rdacarrier 001387420 4901_ $$aTechnology Press research monographs 001387420 506__ $$aAccess limited to authorized users. 001387420 520__ $$aExcerpt from the Preface The principal motivation for this work arose from the obvious desirability of finding a single quantity, a tag so to speak, to describe the noise performance of a two-terminal-pair amplifier. The possibility of the existence of such a quantity and even the general functional form which it might be expected to take were suggested by previous work of one of the authors on microwave tubes and their noise performance. This work showed that noise parameters of the electron beam set an ultimate limit to the entire noise performance of the amplifier that employed the beam. In the microwave tube case, however, the findings were based heavily upon the physical nature of the electron beam, and it was not immediately clear that a general theory of noise performance for any linear amplifier could be made without referring again to some detailed physical mechanism. In order to detach the study of noise performance from specific physical mechanisms, one had to have recourse to general circuit theory of active networks. Such a theory had grown up around the problems associated with transistor amplifiers, and important parts of it were available to us through the association of one of us with Professor S. J. Mason. This combination of circumstances led to the collaboration of the authors.Two major guiding principles, or clues, could be drawn from the experience on microwave tubes. One such clue was the general form of the probable appropriate noise parameter. The other was the recognition that matrix algebra and a proper eigenvalue formulation would be required in order to achieve a general theory without becoming hopelessly involved in algebraic detail.Essentially by trial and error, guided by some power-gain theorems in active circuit theory, we first found a few invariants of noisy networks. Afterward, while we were trying to decide around which quantities we should build a matrix-eigenvalue formulation leading to these same invariants, we were aided by the fact that Mr. D. L. Bobroff recognized a connection between the invariants which we had found and the problem of the available power of a multiterminal-pair network.Armed with this additional idea, we consulted extensively with Professor L. N. Howard of MIT's Department of Mathematics, in search of the appropriate matrix-eigenvalue problem. As a result of his suggestions, we were able to reach substantially the final form of the desired formulation.Once the proper eigenvalue approach was found, additional results and interpretations followed rapidly. In particular, the idea that the eigenvalue formulation should be associated with a canonical form of the noisy network was suggested in a conversation with Proessor Shannon.One of the principal results of the work is that it furnishes a single number, or tag, which may be said to characterize the amplifier noise performance on the basis of the signal-to-noise-ratio criterion. The novel features of this tag are two in number: First, it clears up questions of the noise performance of low-gain amplifiers or of the effect upon noise performance of degenerative feedback; second, it provides for the first time a systematic treatment of the noise performance of negative-resistance amplifiers. The latter results were not expected in the original motivation for the study but grew from insistent demands upon the internal consistency of the theory. It is interesting that the negative-resistance case will probably turn out to be one of the most important practical results of our work.Another result worth mentioning here, however, is the canonical form of linear noisy networks. This form summarizes in a clear, almost visual, manner the connection between the internal noise of a network at any particular frequency and its (resistive, positive, or negative) part. 001387420 588__ $$aOCLC-licensed vendor bibliographic record. 001387420 650_0 $$aElectronic circuits. 001387420 650_0 $$aAmplifiers (Electronics) 001387420 650_0 $$aNoise. 001387420 653__ $$aENGINEERING/Electrical Engineering 001387420 655_0 $$aElectronic books 001387420 7001_ $$aAdler, Richard B.,$$eauthor. 001387420 852__ $$bebk 001387420 85640 $$3MIT Press$$uhttps://univsouthin.idm.oclc.org/login?url=https://doi.org/10.7551/mitpress/1838.001.0001?locatt=mode:legacy$$zOnline Access through The MIT Press Direct 001387420 85642 $$3OCLC metadata license agreement$$uhttp://www.oclc.org/content/dam/oclc/forms/terms/vbrl-201703.pdf 001387420 909CO $$ooai:library.usi.edu:1387420$$pGLOBAL_SET 001387420 980__ $$aBIB 001387420 980__ $$aEBOOK 001387420 982__ $$aEbook 001387420 983__ $$aOnline