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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Compton, R.C. |
| Copyright Year | 1990 |
| Description | Author affiliation: Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA (Compton, R.C.) |
| Abstract | It is shown that computational inefficiency can be avoided by combining the individual subnetworks two at a time, and calculating the S-parameters each time a connection is made, until the complete network is assembled. This technique, called the subnetwork growth method, has the advantage that no large sparse matrices are created. In making a connection there are two distinct operations, depending on whether the ports to be joined are on different networks or on the same network. Formulas for the new S-parameters can be calculated using signal flow graphs. To demonstrate the subnetwork growth method, a microstrip CAD package called Puff has been developed. The circuit description in Puff is stored as dynamic variables that are addressed using pointers. The process of laying out a network consists of building up a linked list of subnetworks and connections. In the analysis stage, Puff collapses these linked lists by making connections until no joints remain. To illustrate a practical design, a simple microstrip low-pass filter, namely a three-stage low-pass Tchebyscheff filter with a 0.1-dB ripple, is built.< |
| Starting Page | 716 |
| Ending Page | 718 |
| File Size | 222568 |
| Page Count | 3 |
| File Format | |
| DOI | 10.1109/MWSCAS.1989.101955 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1989-08-14 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Circuit analysis Scattering parameters Transmission line matrix methods Microwave circuits Sparse matrices Admittance Matrix converters Equations Microwave devices Distributed parameter circuits |
| Content Type | Text |
| Resource Type | Article |
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