Wave-Based RF Circuit Techniques

This chapter describes the quarter-pumped distributed wave oscillator (QPDWO) and the other related radio frequency (RF) circuit techniques. It provides unique advantages to high frequency, high-bandwidth integrated wireless/wireline communication chipsets in the range 0.5 GHz up to 0.5 THz. Some wave-based RF circuit techniques are introduced to increase the received signal sensitivity. Classical phased-array systems need to employ phase interpolators to provide the desired oscillation phases. The inductors can also be accompanied with parallel capacitors to create a resonance at the core traveling wave frequency at the particular bias injection point, resulting in a resonant-pumped distributed wave oscillator (RPDWO). In the case of these figures, however, by using accurate oscillation phases of trigger mode distributed wave oscillator (TMDWO), force-mode distributed wave oscillator (FMDWO), or QPDWO, the extra power consumption and noise contribution of interpolators are avoided. New multiphase distributed microwave oscillator topology along with additional noise-canceling, noise-shaping techniques resulted in low-power, highperformance RF transceiver topology.