Sökning: "mm-wave generation"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden mm-wave generation.

  1. 1. Advanced III-Nitride Technology for mm-Wave Applications

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Anna Malmros; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ohmic contact; passivation; InAlN; high frequency performance; GaN; InAlGaN; HEMT; electron trapping;

    Sammanfattning : Within wireless communication, there is a continuously growing need for more bandwidth due to an increasing number of users and data intense services. The development within sensor systems such as radars, is largely driven by the need for increased detection range and robustness. LÄS MER

  2. 2. Efficient mm-Wave Transmitter Design in CMOS Technology

    Detta är en avhandling från The Department of Electrical and Information Technology

    Författare :Therese Forsberg; [2018-11-18]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CMOS; transmitter; analog; integrated circuits; millieter-wave;

    Sammanfattning : An increasing demand of higher data rates in wireless communication forces the industry to look to higher frequencies to find the required bandwidths. This thesis is about analog transmitters in CMOS for millimeter-wave communication, and it focuses on improving power amplifiers and frequency generation circuits, and increase their efficiency. LÄS MER

  3. 3. Generation, Modulation, and Detection of Signals in Microwave Photonic Systems

    Detta är en avhandling från The Department of Electrical and Information Technology

    Författare :Andreas Wiberg; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microwave photonics; radio over fiber; mm-wave generation; PSK; QAM; subcarrier modulation; photonic frequency multiplication; spurious free dynamic range third-order intercept point; millimeter-wave photonics; uni-travelling-carrier photodiode; millimeter-wave communication system;

    Sammanfattning : This thesis deals with the use of photonic technology in microwave and millimeter-wave applications. The two major parts of this work have been techniques for transmission and signal generation. LÄS MER

  4. 4. Millimeter-Wave Photonics: Signal Sources and Transmission Links

    Detta är en avhandling från The Department of Electrical and Information Technology

    Författare :Andreas Wiberg; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microwave photonics; mm-wave generation; radio over fiber; photonic frequency multiplication; millimeter-wave photonics; millimeter-waves; millimeter-wave communication system;

    Sammanfattning : With the use of higher and higher frequencies in a number of current and future wireless millimeter-wave applications it is beneficial to use photonics for several reasons. The use of optical fibers is an advantageous way to transport millimeter-waves in terms of loss, mechanical flexibility, weight, and insensitivity to electromagnetic interference. LÄS MER

  5. 5. Compact and Wideband Spatial Power Combining Module for mm-Wave High-Power Amplifiers

    Detta är en avhandling från The Department of Electrical and Information Technology

    Författare :Artem Roev; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; integration; ; array amplifiers; RFIC; spatial power combining; ;

    Sammanfattning : The continued growth of data traffic in wireless communication applications demands to launch next-generation communication services at millimeter wave frequencies. Despite the obvious advantage of a large available spectrum, using millimeter wave bands is accompanied by many technological challenges. LÄS MER