IEEE Microwave and Wireless Components Letters · 2009 · 54 citations · 11 references
EngineeringElectrical EngineeringMicroelectronicsMicrowave EngineeringWireless CommunicationsCmos Circuit DesignDielectricsMicrowave Integrated CircuitsMicrowave MeasurementsMicrowave Transmission LinesTransmission LinesCoplanar WaveguidesDevice MiniaturizationDielectric PermittivityMicrostrip LinesMiniaturizationPermittivityPlanar Microwave CircuitsTransmission Line Design
In this letter, experimental results and trends for shielded coplanar waveguide transmission lines (S-CPW) implemented in a 0.35 μm CMOS technology are provided. Because of the introduction of floating strips below the CPW transmission line, high effective dielectric permittivity and quality factor are obtained. Three different geometries of S-CPW transmission lines are characterized. For the best geometry, the measured effective dielectric permittivity reaches 48, leading to a very high slow-wave factor and high miniaturization. In addition, measurements demonstrate a quality factor ranging from 20 to 40 between 10 and 40 GHz, demonstrating state-of-the-art results for transmission lines realized in a low-cost CMOS standard technology.
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Millimeter-Wave Integrated Circuits in 65-nm CMOS
Mikko Varonen, Mikko Kärkkäinen, Mikko Kantanen et al. · IEEE Journal of Solid-State Circuits · 2008 · 121 citations