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Nexxim Simulator > Radial Stub, Shunt, Aperture Width Specified
Netlist FormatAn instance of a shunt radial stub with aperture width specified has the following netlist syntax: Axxx n1 n2 A=val WI=val RL=val W=val COMPONENT=radial_stub_width_shunt SUBSTRATE=substrate_name n1 and n2 are the names of the nodes attached to the radial stub. The entry COMPONENT=radial_stub_width_shunt identifies the element as a shunt radial stub with aperture width specified. The entry SUBSTRATE=substrate_name identifies the microstrip substrate model name selected for the design (see Selecting a Microstrip Substrate). See the Microstrip (MS) Substrate for information on this substrate type.
Netlist ExampleA44 Port1 Port2 A=60 WI=1.1e-3 RL=12e-3 W=0.6e-3 where FR4, the selected layout technology or substrate type, has a definition such as: .SUB FR4 MS( H=7.6200e-004 Er=4.4 TAND=0.02 TANM=0 Notes1. [Microstrip] Valid for H/lg << 1, where H is the substrate thickness defined in the corresponding .SUB statement, and lg is the wavelength in the substrate. 2. Inline configurations of the Radial Stub model include coupling to the main line. Implied MSTEEE, MSTEEC, or MSCROSS junctions are included in this model. 3. The stub is open at the outer radius RL. 4. Conductor and dielectric losses are included if the metallization or the surface resistivity are specified with the substrate data. References1. B. A. Syrett, “A Broad-Band Element for Microstrip Bias or Tuning Circuits,” IEEE Transactions on Microwave Theory and Techniques, Vol. MTT-28, No. 8, Aug. 1980, pp. 925-927. 2. F. Gianinni, R. Sorrentino, “Planar Circuit Analysis of Microstrip Radial Stubs,” IEEE MTT-32, No. 12, Dec. 1984, pp. 1652-1655. 3. F. Gianinni, “CAD-Oriented Lossy Models for Radial Stubs,” IEEE MTT-36, No. 2, Feb. 1988, pp. 305-313. HFSS视频教程 ADS视频教程 CST视频教程 Ansoft Designer 中文教程 |
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