Search for dissertations about: "IQ-modulator"

Found 3 swedish dissertations containing the word IQ-modulator.

  1. 1. CMOS Data Converters for Closed-Loop mmWave Transmitters

    Author : Victor Åberg; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CMOS; SAR ADC; IQ-modulator; Data converter; mmWave; RF-DAC;

    Abstract : With the increased amount of data consumed in mobile communication systems, new solutions for the infrastructure are needed. Massive multiple input multiple output (MIMO) is seen as a key enabler for providing this increased capacity. With the use of a large number of transmitters, the cost of each transmitter must be low. READ MORE

  2. 2. On High-Speed Digital-to-Analog Converters and Semi-Digital FIR Filters

    Author : Mohammad Reza Sadeghifar; J Jacob Wikner; Robert Hägglund; Linköpings universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DAC; RFDAC; SDFIR; FIR; semi-digital FIR filter; digital-to-analog converter; D A converter; data converter; mixed-signal integrated circuits; mixer DAC; IQ modulator; transmitter;

    Abstract : High-speed and high-resolution digital-to-analog converters (DACs) are vital components in all telecommunication systems. Radio-frequency digital-to-analog converter (RFDAC) provides high-speed and high-resolution conversion from digital domain to an analog signal. RFDACs can be employed in direct-conversion radio transmitter architectures. READ MORE

  3. 3. Analysis and Design of DLL-Based Frequency Synthesizers for Ultra-Wideband Communication

    Author : Amin Ojani; Atila Alvandpour; Behzad Mesgarzadeh; Per Larsson-Edefors; Linköpings universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER;

    Abstract : Ever increasing demand for high speed transmission of large data between the electronic devices within a wireless personal area network has been motivating the development of the appropriate wireless standards. Ultra-wideband (UWB) communication employs the unlicensed frequency spectrum of 3.1 ‒ 10. READ MORE