Sökning: "Multi-band"

Visar resultat 1 - 5 av 35 avhandlingar innehållade ordet Multi-band.

  1. 1. System-on-package solutions for multi-band RF front end

    Författare :Xinzhong Duo; Li-Rong Zheng; Kari Halonen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chip-package co-design; multi-band radio; system-on-package; Electronic structure; Elektronstruktur;

    Sammanfattning : Advances in microelectronics technology have enabled us to integrate a complex electronic system (such as a radio) on a single chip or in a single package module, known as system-on-chip (SoC) and system-on-package (SoP) paradigms. This brings not only new opportunities for system integration, but also challenges in design and implementation. LÄS MER

  3. 2. Efficient and Wideband Power Amplifiers for Wireless Communications

    Författare :Paul Saad; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-band; Doherty power amplifier; high efficiency; Branch-line coupler; wideband.; power amplifier; GaN-HEMT;

    Sammanfattning : The rapid evolution of wireless communication systems and the developmentof new standards require that wireless transmitters process several types ofstandards across multiple bands. Power amplifiers (PAs) are key componentsin wireless transmitters because they have a big impact on the overall systemperformance in terms of their bandwidth, efficiency, and linearity. LÄS MER

  4. 3. Methodologies and Tools for the Design and Optimization of Multi-Standard Radio Receivers

    Författare :Delia Rodríguez de Llera González; Mohammed Ismail; Ana Rusu; Patrick Haspel; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Design Methodologies; Receiver; ADC; Multi-Agent System; Behavioural System; Frequency Planning; Multi-standard; Multi-band; Optimization; Information technology; Informationsteknik;

    Sammanfattning :  One of the main challenges posed by 4G wireless communication systems is achieving flexible, programmable multi-standard radio transceivers with maximum hardware share amongst different standards at a minimum power consumption. Evaluating the feasibility and performance of different multi-standard/multi-band radio solutions at an early stage, i. LÄS MER

  5. 4. Characterization and Linearization of Multi-band Multi-channel RF Power Amplifiers

    Författare :Shoaib Amin; Peter Händel; Daniel Rönnow; Christian Fager; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik; Intelligent industri;

    Sammanfattning : The World today is deeply transformed by the advancement in wireless technology. The envision of a smart society where interactions between physical and virtual dimensions of life are intertwined and where human interaction is mediated by machines, e.g., smart phones, demands increasingly more data traffic. LÄS MER

  7. 5. Numerical solutions to non-linear inhomogeneous problems in Superconductivity : From sphalerons to multi-band boundary states and spontaneous magnetic fields

    Författare :Andrea Ludovico Benfenati; Egor Babaev; Sedrakyan Tigran; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Teoretisk fysik; Theoretical Physics;

    Sammanfattning : This thesis is a compilation of theoretical works focused on simulating and studying open questions regarding single and multiband superconductivity. In the last decades, with the discovery of multiband superconductors, the spectrum of potential applications has greatly widened. LÄS MER