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Nexxim Simulator > Slot Gap
Netlist FormatAn instance of a coplanar waveguide slot gap has the following netlist syntax: ACPWSGAP:xxxx n1 n2 COMPONENT=cpw_slot_gap W=val G=val D=val SUBSTRATE=substrate_name n1 and n2 are the names of the nodes attached to the slot gap. The entry COMPONENT=cpw_slot_gap identifies the element. The SUBSTRATE=substrate_name is the coplanar waveguide substrate model name selected for the design (see Selecting a Coplanar Waveguide Substrate for details).
Netlist ExampleACPWSGAP:5 Port1 Port2 W=1.1mm G=0.75mm D=1.5mm COMPONENT=cpw_slot_gap SUBSTRATE=CPW1 where CPW1, the selected layout technology or substrate type, has a definition such as: .SUB CPW1 CPW( Notes1. Quasi-Static behavior is assumed in the analysis. This assumption is valid for most CPW applications in a wide frequency range. 2. Only the symmetrical case is considered. 3. The model computes the equivalent T-network inductances. References[1] W. Getsinger, “Circuit Duals of Planar Transmission Media,” 1983 IEEE MTT-S Digest, pp. 154-156. [2] J. Everard, and K. Cheng, ``High performance Direct Coupled Bandpass Filters on Coplanar Waveguide, '' IEEE Trans. on MTT, Sep. 1993, pp. 1568-1573.
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