Broadband equivalent circuit derivation for multi-port circuits based on eigen-state formulation

Electromagnetic modeling and analysis of substrate related slow-wave mechanisms for applications from millimeter-wave to optical frequency domains

“…Slow-wave regimes are found promising in developing Carbon Nanotube antenna systems as well [13]. Use of X-topology equivalent circuit model derivation discussed in [14][15] for analysis of micronic metal-fill tiling is proposed for modeling slow-wave transition mechanisms. Use of hybrid lattice and or T networks is discussed in [16] for the design and optimization of slow-wave transmission lines.…”

Eigen-state approach for the analysis and circuit representation of resonator systems. Towards a synthesis methodology

“…In this contribution we propose application of the second alternative to increase reactive energy storage by means of floating inductive and capacitive coupling to improve selectivity. In order to bridge EM fields considerations with electrical equivalent circuits representations eigen-states formulation is introduced for physics based design methodology synthesis [3,4]. The proposed design methodology approach in order to map EM fields oriented-analysis (Topology-driven) with equivalent circuit based models (schematicdriven) considers modal-state representations to capture topology related specifics and attributes.…”

“…Instead of only acting to reduce conductor and dielectric losses, ability to increase storage of reactive energy represents an innovative alternative. Such technique necessitates proper analysis of grounding [4] connections (floating, local ground or global ground access), mutual inductance/capacitance couplings with respect both to micro-strip and CPW configurations.…”

Analysis and design of low-power - low-noise crystal oscillators accounting for electro-mechanical energy conversion aspects

“…Hence, the necessity of multi-physics methodologies for bridging the gap between electrical description and piezo-electrical representations accounting for power-energy conversion mechanisms. In Fig.1, Xtopology architecture is introduced to optimize the quality factor of the twin resonators based on variation of Z parameter [3].The introduced electro-mechanical coupling module in Fig.1 …”

“…A separate branch of identified mode (fundamental) with an effective motional branch composed of R,L,C, and G as in Fig.2(a) has the admittance Y Crystal given by equation (3). The analysis of the admittance frequency response shows the existence of resonance (Series) and antiresonance (Parallel) frequencies with respectively pulsations ω Series =L n -1/2 C n -1/2 and ω Parallel .…”