Essays about: "microwave amplifiers"

Showing result 1 - 5 of 10 essays containing the words microwave amplifiers.

  1. 1. Characterisation and optimisation of superconducting microwave resonators

    University essay from Chalmers tekniska högskola/Institutionen för mikroteknologi och nanovetenskap

    Author : Thijs Boehme; [2016]
    Keywords : superconducting resonators;

    Abstract : In this master's thesis, I present the design, fabrication, and characterisation of superconducting microwave resonators. These resonators are quarter-wavelength coplanar waveguide resonators, operating at resonance frequencies between 4 GHz and 8 GHz. READ MORE

  2. 2. A 200 GHz Subharmonic Resistive Mixer and an IF Amplifier Based on GFETs

    University essay from Chalmers tekniska högskola/Institutionen för mikroteknologi och nanovetenskap

    Author : Yaxin Zhang; [2016]
    Keywords : Graphene; GFETs; subharmonic resistive mixers; small-signal amplifiers; CPW technology; integrated circuits ICs ;

    Abstract : In recent years, graphene, a two-dimensional monolayer of carbon atoms, has rapidly attracted great attention in high-speed electronics. The promising property such as the high intrinsic carrier mobility as well as high carrier saturation velocity make graphene a potential candidate for high-speed transistors operating in the millimeter wave and the terahertz frequency ranges. READ MORE

  3. 3. W-Band Power Amplifier Design

    University essay from Chalmers tekniska högskola/Institutionen för mikroteknologi och nanovetenskap

    Author : Li Wei; [2014]
    Keywords : power amplifier; InP; DHBT; HBT; GaAs; pHEMT; high electron mobility transistor HEMT ; monolithic microwave integrated circuit MMIC ; W-band; bus-bar; wideband;

    Abstract : This thesis presents two W-band power amplifiers (PA) in different processes: one is Teledyne 250 nm indium phosphide (InP) double-hetero-junction bipolar transistor (DHBT) process, and the other is United Monolithic Semiconductors (UMS) 0.1 µm gallium arsenide (GaAs) pseudomorphic high electron mobility transistor (pHEMT) process. READ MORE

  4. 4. Development of a wideband high power amplifier for cancer treatment.

    University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Author : Sohil Shahabi Ghahfarokhi; [2013]
    Keywords : wideband; high power; amplifier; hyperthermia;

    Abstract : Medical hyperthermia refers to heating of tumors to temperature levels which are lethal to the cells for sufficient periods of time or rendering the cancerous cells more sensitive to ionizing radiation or chemotherapy. In order to increase the temperature in cancerous tissues, high power solid state microwave amplifiers need to be used. READ MORE

  5. 5. Design and analysis of multi-band transmitters for wireless communications

    University essay from Chalmers tekniska högskola/Institutionen för mikroteknologi och nanovetenskap

    Author : Sebastian Gustafsson; [2013]
    Keywords : Microwave; Power Amplifier; Load-Pull; Multi-Band;

    Abstract : The purpose of this thesis is to analyze a transistor under multi-band operation and investigate how termination of the intermodulation products affect device performance. A multi-band active load-pull system is used for device measurements, and the two frequencies of interest are 2.14 GHz and 2.65 GHz, which represent two LTE bands. READ MORE