RF Pure Current-Mode Filters using Current Mirrors and Inverters

摘要

In this paper the design method leading to the radio-frequency (RF) filters working in the pure current mode is shown. New active elements called current mirrors and inverters (CMI) are presented, a generalized variant (GCMI) is used for the design purposes, and a universal version (UCMI) is fitted to the filtering-circuit final solution. Initial autonomous circuits are derived from the full admittance network, which is defined. In this paper, a few autonomous circuits with five passive elements are presented. An illustration of the filter design with independent quality factor adjustment with respect to the characteristic frequency is given. Results obtained from the measurement of samples are shown.