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This paper presents a tunable transmission line (t-line) structure, featuring independent control of line inductance and capacitance. The t-line provides variable delay while maintaining relatively constant characteristic impedance using direct digital control through FET switches. As an application of this original structure, a 60 GHz RF-phase shifter for phased-array applications is implemented...
The concept of Variable Transmission Lines (VTL) offers digital tuning of transmission line characteristics to compensate for process variations and parasitic modeling uncertainties. VTL structures and models enabling robust silicon-based millimeter-wave IC design are proposed along with a compact model for their efficient simulation. The developed compact models have been successfully integrated...
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