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A novel bandpass filter (BPF) design based on vertical split-ring resonators (VSRRs) was developed for single- and dual-band applications. The filter is composed of VSRRs, transmission lines, and apertures. The characteristics of single- and dual-band BPFs using a single VSRR and dual VSRRs, respectively, were investigated. The bandpass characteristics arising from VSSR resonance can be controlled...
A full frequency band active RF tracking filter design for a digital TV tuner is implemented for the first time. By combined control of the Gm and C values in the biquad of the Gm-C filter, the proposed tracking bandpass filter satisfies full frequency band tuning while maintaining narrow bandwidth. The Gm cell of the tracking filter is based on a dynamic source degenerated differential pair with...
A low power and highly linear CMOS active tracking bandpass filter is presented to overcome a local oscillator harmonic mixing problem for Digital TV tuner ICs. A transconductor linearization technique based on a method of dynamic source degenerated differential pair is adopted to improve the linearity performance. The newly proposed low power high quality factor (Q) biquad and the linearized transconductor...
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