Synthesis of n-Port Networks on Two-Tree Port-Structures

Lupo, F.; Halkias, Christos C.

doi:10.1109/tct.1965.1082510

Cited by 10 publications

(7 citation statements)

References 5 publications

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“…We note that the potential factors SieZ and S,,l and S are all the same both for the padding network and the final network that will be the parallel combination of the padding network and a suitable network of departure; Thus, the arbitrary quantities that are assumed in gen- erating a padding network can be identified with the corresponding quantities in the final network required. The procedures used in [5] and [6] do not permit such straightforward identifications.…”

Section: Discussionmentioning

confidence: 99%

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Realization of modified cut-set matrix and applications

Reddy¹,

Murti

1970

IEEE Trans. Circuit Theory

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The concepts of network of departure and padding n-port network are defined and certain important properties of these is the diagonal matrix of edge conductances of N, then networks are stated. A necessary and sufficient criterion for the the cut-set admittance matrix Y, of N is given by realization of the modified cut-set matrix of a resistive n-port network having a prescribed configuration is given. A new approach (1) to the synthesis of short-circuit conductance matrix of a resistive n-port network with more than (n + 1) nodes is outlined. Necessary and sufficient conditions for the realization of the potential factor in which the rows and columns of Y,, correspond to the matrix of an (n + 2) node resistive n-port network are also obtained. port edges and those of Y,, correspond to the nonport _ These conditions lead to a simple t&t for the realizability of the edges. modified cut-set matrix of an (n + 2) node n-port network. Examples

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Section: Discussionmentioning

confidence: 99%

“…Other approaches due to Frisch and Swaminathan [5] and Halkias and Lupo [6] can also be stated in terms of networks of departure and padding networks. They .…”

Section: Synthesis Of the Short-circuit Conductance Matrix Of A mentioning

confidence: 99%

Realization of modified cut-set matrix and applications

Reddy¹,

Murti

1970

IEEE Trans. Circuit Theory

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show abstract

“…We must choose a value of x 4 in the range 1 -144 < x 4 < 1.234. As x 4 is varied over its range, equations (4) and (5) define the realizable range for XI. Choosing XI in this range leads to the network realizable with all positive branch conductances.…”

Section: ( 5 )mentioning

confidence: 99%

Conductance matrix realization on a two‐tree port structure

Maka¹

1991

Circuit Theory & Apps

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“…Studies of transformerless n-ports of resistors have continued. General necessary and sufficient conditions on the input-output relationships have not been found, but further special cases have been solved and further insight has been gained [Nambiar, 1964;Lupo and Halkias, 1965;Swaminathan and Frisch, 1965].…”

Section: Circuits 1 01 Linear Circuitsmentioning

confidence: 99%

U.S.A. National Assembly, Committee Report, Fifteenth URSI General Munich, September 1966: Commission 6, Radio Waves and Transmission OF Information; Progress. in Radio Waves and Transmission of

Darlington¹,

Felsen²,

Siegel³

et al. 1966

Radio Science

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Many important papers have appeared; only a few can be given here. In cylindrical antenna theory, accurate current and field distributions were found for isolated [King and Wu, 1965] and coupled [King and Sandler, 1964] elements. A fine summary of broadband antennas by Jordan was referenced in recent studies of log‐spiral antennas [Dyson, 1965]. New structures included the wire‐grid HF Luneburg lens [Sharp, 1965] and double‐helix antennas [Ehrenspeck, 1965]. Advances in large quasi‐optical antennas included an analysis of focal fields and line source feeds for spherical reflectors [Schell, 1963]; analysis of reflector‐subreflector systems such as Cassegrain and Gregorian types [Morgan, 1964]; and a book treating aperture antennas and including many references [Hansen, 1964]. Progress in optical scanning systems included geodesic Luneburg lenses [Ruddock, Ryan, and Walter, 1964], bootlace lenses [Kales and Brown 1965], and parallel‐plate scanners [Rotman and Turner, 1963]. Electronic scanning of phased arrays received major attention. Mutual impedance changes With scan angles were analyzed by the impedance crater concept [Rhodes, 1964]; also techniques for compensating for these changes were developed [Hannan, Lerner, and Knittel, 1965). Important progress has been made in digital phase shifters. The diode type [White, 1965] has recently been supplemented by latching types employing ferrite cores [Whicker and Jones, 1965]. Adaptive array systems were covered in a special issue [IEEE, 1964]; of particular interest are the Gruenberg paper on retrodirective systems and the Skolnik and King paper on selfsteering arrays. The annular slot array has been developed for monopulse [Kelly and Goebels, 1964]. Nonuniformly spaced array sidelobes have been bounded by a probabilistic approach [Lo, 1964]. Finally, the important but long unsolved problem of an optimum directivity source with supergain ratio constraint was formally solved [Rhodes, 1963].

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Synthesis of n-Port Networks on Two-Tree Port-Structures

Cited by 10 publications

References 5 publications

Realization of modified cut-set matrix and applications

Realization of modified cut-set matrix and applications

Conductance matrix realization on a two‐tree port structure

U.S.A. National Assembly, Committee Report, Fifteenth URSI General Munich, September 1966: Commission 6, Radio Waves and Transmission OF Information; Progress. in Radio Waves and Transmission of

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