Characteristic Impedance of Microstrip-like Interconnections Guarded by Ground Tracks
نویسندگان
چکیده
Grounded guard tracks placed adjacent to transmission line interconnects can change their impedance significantly. We report closed-form expressions for line capacitance and impedance of transmission line interconnects with adjacent guard tracks. Results are validated by finite-difference time-domain (FDTD) simulations and measurements. The proposed results can have significant impact on the analysis of coupled interconnect lines, where the use of these grounded tracks is a common design practice.
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تاریخ انتشار 2008