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The use of the digital radio type solutions in the mobile communications is a challenge in the actual microelectronic technology. Because high-power CMOS transistors are not expected to be availableâ€¦ (More)

- Alexandru Gheorghe, Florin Constantinescu, Miruna Nitescu
- 2013 Africon
- 2013

The following improvements are made to the symbolic LR algorithm for the computation of the approximate pole/zero expressions: formulation of the “state-like” matrix in the case d=0 inâ€¦ (More)

- Mihai Iordache, Lucia Dumitriu, Florin Constantinescu, Miruna Nitescu
- 2006 IEEE International Symposium on Circuits andâ€¦
- 2006

The paper presents a new version of the modified nodal method for analysis of the circuits with widely separated time scales. The key idea is to use multiple time variables, which enable signals withâ€¦ (More)

- Alexandru Gheorghe, Florin Constantinescu, Mihai Eugen Marin, Miruna Nitescu
- 2013 4th International Symposium on Electricalâ€¦
- 2013

An envelope following algorithm using both the quadratic and the exponential approximations of the envelope has been used for the simulation of a DC-DC converter with closed loop control. Thisâ€¦ (More)

- Alexandru Gheorghe, Florin Constantinescu
- 2012 Sixth UKSim/AMSS European Symposium onâ€¦
- 2012

An algorithm able to compute both the numerical values and the approximate symbolic expressions of poles and zeros of a circuit function is analyzed. At least for the given example, the numericalâ€¦ (More)

We present natural (invariant) definite and indefinite scalar products on the N = 1 superspace which turns out to carry an inherent Hilbert-Krein structure. We are motivated by supersymmetry inâ€¦ (More)

- Florin Constantinescu, Ovidiu Silviu Taus, Alexandru Gheorghe
- 2015 13th International Conference on Engineeringâ€¦
- 2015

A new behavioral model for frequency domain analysis of power bulk acoustic wave (BAW) filters with sinusoidal excitation is proposed. It is built based on the measured S parameters and on theâ€¦ (More)

- Aurelian Florea, Olivier Llopis, Miruna Nitescu, Florin Constantinescu
- 2010 3rd International Symposium on Electricalâ€¦
- 2010

Some measurement results of nonlinear effectsof the AlN power BAW resonators are presented in this paper. Both the amplitude-frequency effect and the intermodulation effect have been measured.â€¦ (More)

- Florin Constantinescu, Alexandru Gheorghe, C. D. Ioan, Miruna Nitescu, Mihai Iordache, Lucia Dumitriu
- 2006 IEEE International Symposium on Circuits andâ€¦
- 2006

A method for the computation of a reduced order circuit model, based on the approximation of |Y(jomega)| with a set of assymptotes corresponding to a simple RC admittance is presented. The circuitâ€¦ (More)

- Gabriel Stroe, Florin Constantinescu, Alexandru Gheorghe, Miruna Nitescu, Olivier Llopis
- 2013 8TH INTERNATIONAL SYMPOSIUM ON ADVANCEDâ€¦
- 2013

Two six-resonator power BAW filters using anti-series and anti-parallel connected resonators are measured, proving that the amplitude of the 2f component in the output power is very small. Aâ€¦ (More)