Tunnel Diode Macro-model in the Electronic Circuits Modeling Systems
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2014, Vol 0, Issue 59
Abstract
Introduction. The circuit simulation programs that are currently in use do not have tunnel diodes macro-models in their standard libraries. So it is important to create and examine a circuit diagram of tunnel diode macro-model, because tunnel diodes are often used for oscillators and amplifiers developing. Theoretical statement. The tunnel diodes macro-models are based on current / voltage characteristics that correspond to the real static characteristics and parameters. The static current/voltage characteristic of the device is defined by coordinates in characteristic points and contains a region of negative dynamic resistance. The suggested circuit diagram of tunnel diode macro-model consists of two parallel circuits. One of them forms so called λ-diode, and the other represents diode with parasitic capacitance. Conclusions. The tunnel diode macro-model was created. A set of equations for parameter computation of micro-models of different types were derived. The oscillator simulation with using created tunnel diode macro-model shows availability of adopted simulating principles.
Authors and Affiliations
J. Zinkowskiy, A. Koval
Selective filters on coaxial dielectric resonators
Results of designing frequency-selective filters for telecasting and systems of satellite navigation, their key parameters and characteristics are submitted in this work. Key words:
Radio-technical characteristics of plasma and metal antennas mounted on aircrafts and spacecrafts
RT characteristics of plasma and metal antennas (VSWR, RP, gain, efficiency) installed on aircrafts and spacecrafts and their fragments in the software environment EMSS FEKO are investigated. It became possible to carry...
Micromotor for electromechanical reflective polarization phase shifter
The design of micromotor for electromechanical discrete polarizing reflective phase shifter for phased arrays of centimeter and millimeter bands is offer. The stator of the micromotor consists of two sections of the elec...
Rationale for indicator quality of integrated information security system
The justification of index of functional quality of the system of informational security in structural departments of Government service of emergency situations of Ukraine is carried out. Basic parameters which can influ...
Coupling coefficients of different disk microresonators with whispering gallery modes
The coupling coefficients of the disk microresonators consisting of different dielectrics are presented. The analytical expressions for the coupling coefficients are obtained. The basic regularities of the coupling coeff...