Pub Date : 1955-09-01DOI: 10.1109/TCT.1955.1085252
N. Rouche
{"title":"Review of 'Perturbations in Filtered Non-linear Systems Applications to Oscillator Theory'","authors":"N. Rouche","doi":"10.1109/TCT.1955.1085252","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085252","url":null,"abstract":"","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115441853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-09-01DOI: 10.1109/TCT.1955.1085240
J. Karakash
{"title":"Review of 'Automatic Feedback Control System Synthesis'","authors":"J. Karakash","doi":"10.1109/TCT.1955.1085240","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085240","url":null,"abstract":"","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128645233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-09-01DOI: 10.1109/TCT.1955.1085251
W. Bennett
{"title":"Review of 'Nyquist's and Thevenin's Theorems Generalized for Nonreciprocal Linear Networks'","authors":"W. Bennett","doi":"10.1109/TCT.1955.1085251","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085251","url":null,"abstract":"","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134270635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.1085213
C. Cheng
ALTHOUGH various methods of neutralization have been employed for several years in vacuum-tube circuits,1 the unilateralization technique was introduced only recently. This technique is based on a study of the linear, active, four-terminal network theory, which has become increasingly important in the design of transistor circuitry. Although neutralized circuits are usually treated as conventional balanced-bridge circuits, they can be analyzed more systematically as network problems. This paper analyzes both neutralization and unilateralization circuitry by means of the four-terminal network theory, and clarifies the similarities and the differences between the two types of circuits. Typical examples of neutralized and unilateralized vacuum-tube and transistor amplifiers are also given.
{"title":"Neutralization and unilateralization","authors":"C. Cheng","doi":"10.1109/TCT.1955.1085213","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085213","url":null,"abstract":"ALTHOUGH various methods of neutralization have been employed for several years in vacuum-tube circuits,1 the unilateralization technique was introduced only recently. This technique is based on a study of the linear, active, four-terminal network theory, which has become increasingly important in the design of transistor circuitry. Although neutralized circuits are usually treated as conventional balanced-bridge circuits, they can be analyzed more systematically as network problems. This paper analyzes both neutralization and unilateralization circuitry by means of the four-terminal network theory, and clarifies the similarities and the differences between the two types of circuits. Typical examples of neutralized and unilateralized vacuum-tube and transistor amplifiers are also given.","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128341642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.1085231
H. Armstrong
A FOUR-(OR THREE-) terminal network is conveniently represented by its transmission matrix, which is taken as the matrix A, defined by:
四端(或三端)网络可以方便地用其传输矩阵表示,取矩阵A,定义为:
{"title":"Note on the use of Tchebycheff functions in dealing with Iterated networks","authors":"H. Armstrong","doi":"10.1109/TCT.1955.1085231","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085231","url":null,"abstract":"A FOUR-(OR THREE-) terminal network is conveniently represented by its transmission matrix, which is taken as the matrix A, defined by:","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121085082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.1085233
C. Hurtig
IT IS well known that the variation of the transistor parameters with the dc bias conditions may be employed to control the gain of a transistor amplifier stage. There are, however, many applications that require a gain that is variable in accordance with an external voltage, with the added restraint that the input and output impedances shall be maintained approximately constant. One of these applications is the broad-band IF amplifier. The design of wide-band transistor amplifiers usually requires an effective load resistance of small value compared to the output resistance of the transistor. If this type of stage is operated at a fixed collector supply voltage and is gain-controlled by variation of the emitter current, then to a first approximation the output resistance is negligibly large
{"title":"Constant-resistance AGC attenuator for transistor amplifiers","authors":"C. Hurtig","doi":"10.1109/TCT.1955.1085233","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085233","url":null,"abstract":"IT IS well known that the variation of the transistor parameters with the dc bias conditions may be employed to control the gain of a transistor amplifier stage. There are, however, many applications that require a gain that is variable in accordance with an external voltage, with the added restraint that the input and output impedances shall be maintained approximately constant. One of these applications is the broad-band IF amplifier. The design of wide-band transistor amplifiers usually requires an effective load resistance of small value compared to the output resistance of the transistor. If this type of stage is operated at a fixed collector supply voltage and is gain-controlled by variation of the emitter current, then to a first approximation the output resistance is negligibly large","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133609389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.1085225
H. Orchard
{"title":"Review of 'A New Method of Synthesis of Reactance Networks'","authors":"H. Orchard","doi":"10.1109/TCT.1955.1085225","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085225","url":null,"abstract":"","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114255614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.6373411
L. A. Pipes
MATRICES were introduced into mathematics nearly a century ago when in 1857 the eminent English mathematician Cayley published his fundamental paper, “A Memoir on the Theory of Matrices.” 1 Cayley demonstrated that by the use of matrices, the system of n linear algebraic equations
{"title":"An introduction to the papers on matrix methods of circuit analysis and synthesis","authors":"L. A. Pipes","doi":"10.1109/TCT.1955.6373411","DOIUrl":"https://doi.org/10.1109/TCT.1955.6373411","url":null,"abstract":"MATRICES were introduced into mathematics nearly a century ago when in 1857 the eminent English mathematician Cayley published his fundamental paper, “A Memoir on the Theory of Matrices.” 1 Cayley demonstrated that by the use of matrices, the system of n linear algebraic equations","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129448401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.1085228
J. Percus
THE PROBLEM of determining the possible I closed circuits available in a situation in which n terminals are interconnected in some fashion by unilateral branches is one of considerable importance in a number of diverse fields. It may be regarded as that of a topological characterization of a linear network, with specific branch gains between terminals; in such a case, the system may be designated (see Fig. 1) by the branch gain or transmission factor matrix A = (aij), in terms of which the terminal inputs Ei and terminal “voltages” Vi are related by
{"title":"Matrix analysis of oriented graphs with irreducible feedback loops","authors":"J. Percus","doi":"10.1109/TCT.1955.1085228","DOIUrl":"https://doi.org/10.1109/TCT.1955.1085228","url":null,"abstract":"THE PROBLEM of determining the possible I closed circuits available in a situation in which n terminals are interconnected in some fashion by unilateral branches is one of considerable importance in a number of diverse fields. It may be regarded as that of a topological characterization of a linear network, with specific branch gains between terminals; in such a case, the system may be designated (see Fig. 1) by the branch gain or transmission factor matrix A = (aij), in terms of which the terminal inputs Ei and terminal “voltages” Vi are related by","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122446289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1955-06-01DOI: 10.1109/TCT.1955.6373427
H. Tompkins
THE ANALYSIS or synthesis of bandpass networks using plots of the singularities of their transfer functions 1‾3 can often be shortened and simplified by using a suitable logarithmic transformation of the complex-frequency s-plane which permits a simple approximate calculation of the transfer function. This approximation is good for over-all-bandwidth ratios of 2 to 1 or less as compared with a usable bandwidth ratio of 1.2 to 1 for the conventional narrow-band approximation. This transformation is not intended for use with an electrolytic tank, for which better methods have been described in the literature.4‾6 It does not have the power of certain conformai transformations7, 8 but is considerably simpler. Unlike the wide-band low-pass to bandpass transformation9 it is not limited to pole and zero patterns of particular symmetry. This approximation also has interesting properties as an aid in the factoring of network polynomials, as will be shown.
{"title":"Note on a logarithmic approximation for use with singularity plots","authors":"H. Tompkins","doi":"10.1109/TCT.1955.6373427","DOIUrl":"https://doi.org/10.1109/TCT.1955.6373427","url":null,"abstract":"THE ANALYSIS or synthesis of bandpass networks using plots of the singularities of their transfer functions 1‾3 can often be shortened and simplified by using a suitable logarithmic transformation of the complex-frequency s-plane which permits a simple approximate calculation of the transfer function. This approximation is good for over-all-bandwidth ratios of 2 to 1 or less as compared with a usable bandwidth ratio of 1.2 to 1 for the conventional narrow-band approximation. This transformation is not intended for use with an electrolytic tank, for which better methods have been described in the literature.4‾6 It does not have the power of certain conformai transformations7, 8 but is considerably simpler. Unlike the wide-band low-pass to bandpass transformation9 it is not limited to pole and zero patterns of particular symmetry. This approximation also has interesting properties as an aid in the factoring of network polynomials, as will be shown.","PeriodicalId":232856,"journal":{"name":"IRE Transactions on Circuit Theory","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1955-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124168152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}