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This contribution propose a design procedure applicable to many kinds of wireless or contactless energy transfer systems. The design procedure is limited to near field wireless energy transfer systems in resonant operation. Therefore it is well applicable to systems with a primary side power oscillator or systems with a control strategy that forces an equal system behavior compared to a primary side...
This paper reports a CMOS terahertz oscillator with a novel frequency selective negative resistance (FSNR) tank to boost its operating frequency. The demonstrated oscillator can operate at a fundamental frequency of about 0.22 THz, exceeding the CMOS device cutoff frequency of . The proposed architecture suppresses undesired 2nd and odd harmonics and boosts the fourth-order harmonic...
In-place diagnosis of off-chip power delivery resonance is demonstrated with on-chip waveform capturer and power delivery network (PDN) exciter that were prototyped in a 65 nm CMOS technology. Oscillatory waveforms are captured after the excitation of PDN, from which an LCR lumped equivalent circuit of PDN seen by on-chip circuits is algorithmically derived. The consistency of component values is...
In presented work, resonance properties of resonators formed by quasiperiodic Bragg reflectors are investigated by solution of some types of eigenvalue problems. In the first eigenvalue problem the values of complex eigenfrequencies are found for the decaying natural oscillations of the "cold" passive resonators. The other eigenvalue problems correspond to undamped oscillations in "hot"...
The next generation of wireless communication is a ubiquitous radio system concept, providing wireless access from short-range to wide-area, with one single reconfigurable and adaptive system for all envisaged radio environments. This paper presents the design approach of RCO (reconfigurable concurrent oscillator) that simultaneously generates two or more signals of different frequencies that eliminate...
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