Search for dissertations about: "class-e"

Showing result 1 - 5 of 11 swedish dissertations containing the word class-e.

  2. 1. Class-E Power Amplifiers for Pulsed Transmitters

    Author : MUSTAFA ÖZEN; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; RF-PWM; pulsed transmitters; frequency agility; energy efficiency; Class-E;

    Abstract : Nowadays the main driving parameters for the radio transmitter research are: energy efficiency, frequency re-configurability and integration. Pulsed transmitter architectures have attracted large interest in the recent years due to their potential to meet these demands. READ MORE

  4. 2. Reliable and Efficient Microwave Circuits for Space Applications

    Author : Andreas Ådahl; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ZBD; PA; Class E; Zero Bias Diode; LDMOS; Mixer; MMIC; Satellite; Balun; Inverse class F; Novel; Multiplier; mHEMT; Power amplifier; Converter;

    Abstract : In this thesis, reliable and efficient microwave circuits used in space applications, e.g. satellite transponder systems, are discussed. The main focus is on mixers, multipliers and power amplifiers. READ MORE

  5. 3. Advanced Transmitter Architectures Based on Switch Mode Power Amplifiers

    Author : MUSTAFA ÖZEN; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; combiner; SMPA; Bandwidth; class-E; outphasing; energy efficiency;

    Abstract : Nowadays the main driving parameters for the research in radio transmitters in wireless infrastructure are energy efficiency, frequency agility, and integration.This thesis presents new solutions at the device waveform-, circuit-, and transmitter level which exploit the inherent high efficiency potential of switch-mode power amplifiers (SMPAs) for realization of energy efficient, wide-band, highly integrated transmitters for wireless communication applications. READ MORE

  6. 4. Large-Signal Modeling of Microwave Transistors

    Author : Lars Bengtsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; large-signal; HEMT; non-linear models; de-embedding; high-efficiency; class-E amplifier; LDMOS; HBT; HFET; model parameter extraction; microwave transistors;

    Abstract : The development of computer aided design tools for microwave circuit design has increased the interest for accurate transistor models. The circuit complexity has grown as the CAD tools have been improved and the need to predict how non-linear circuits behave has also been increased. READ MORE

  7. 5. Power Amplifier Circuits in CMOS Technologies

    Author : Jonas Fritzin; Atila Alvandpour; Henrik Sjöland; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The wireless market has experienced a remarkable development and growth since the introduction of the first mobile phone systems, with a steady increase in the number of subscribers, new application areas, and higher data rates. As mobile phones and wireless connectivity have become consumer mass markets, a prime goal of the IC manufacturers is to provide low-cost solutions. READ MORE