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Presented is a compact millimetre-wave bandpass filter using a thin-film microstrip meander line on standard 0.18 µm CMOS silicon substrate without any post-processing step yet still reducing the substrate loss and crosstalk to a large extent. To miniaturise overall circuit size, a half-wavelength resonator is constructed in meander-line configuration and its resonant frequency is designed to be 40 GHz. The prototype single-resonator bandpass filter occupies a circuit area of 210×210 µm on silicon. Measured insertion loss is 2.5 dB, which agrees well with the design value in the simulations. [ABSTRACT FROM AUTHOR]

A simplified RF noise de-embedding method for an on-wafer CMOS device using only one dummy structure for simplicity and area reduction is presented. The method describes the use of a ‘thru’ test structure to subtract completely the parasitic effects of pads and in/out interconnections from the device under test. A comparison of the de-embedding results among the simplified method and existing de-embedding methods is given, which proves that the new method is effective, accurate and time efficient. [ABSTRACT FROM AUTHOR]