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This paper proposes an architecture and design approach for the realization of wideband millimeter-wave frequency synthesizers. This architecture uses two-step multi-order harmonic generation of a low frequency phase-locked signal to generate wideband millimeter-wave frequencies. The first step is implemented using a multi-order digital harmonic synthesis block combined with a multi-phase injection-locked...
An octave-phase local-oscillator (LO) generator for 170-to-860-MHz mobile-TV tuners is described. It is intended to incorporate with a polyphase mixer scheme for rejecting the 3rd and 5th harmonics of the LO that is critical for wideband reception. The circuit is structured by a cascade of 7 inverter-based phase correctors to generate a set of LO signals with octave phases in an open-loop formation,...
A new oscillator macromodel in the form of phase differential equation is proposed. The comparison of new macromodel with the Adler equation and with the macromodel based on Floquet theory is presented. It is shown that the proposed approach allows to perform phase noise analysis of any oscillator circuit with arbitrary periodic injection waveform. The approach can be easily implemented into a circuit...
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