Essays about: "noise figure"

Showing result 1 - 5 of 36 essays containing the words noise figure.

  1. 1. Direct Conversion Front End for LTE and LTE-A with Frequency-Translational Feedback, Harmonic Rejection Mixer and Input Matching Compensation

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Douglas Andersson Hägglund; [2016]
    Keywords : Technology and Engineering;

    Abstract : This thesis covers the design of a wideband, flexible front end for LTE and LTE-A in a 65 nm CMOS process. A topology with global frequency translational feedback is investigated and a harmonic rejection mixer is implemented. READ MORE

  2. 2. Design of a 30 GHz PLL for use in Phased Arrays

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Byron Murphy; [2016]
    Keywords : pll; phase-locked loop; beamforming; vco; qvco; Technology and Engineering;

    Abstract : This project includes the research and implementation of a high frequency phase-locked loop (30 GHz or more) for beamforming use in a phased antenna array. The phase-locked loop includes a quadrature voltagecontrolled oscillator with a 10% tuning range and 417 degrees of phase control with a 10 degree resolution, a current mode latch in the divide-bytwo configuration operates over the quadrature voltage-controlled oscillator’s tuning range while consuming less than 583 uA of current, Dtype flip flops in a divide-by-8 configuration, a phase-frequency detector, a charge-pump, and a loop filter. READ MORE

  3. 3. A 1296 MHz Earth-Moon-Earth Communication System

    University essay from Chalmers tekniska högskola/Institutionen för rymd- och geovetenskap

    Author : Magnus Lindgren; [2015]
    Keywords : earth moon communication system;

    Abstract : The task of designing, building and characterizing an Earth–Moon–Earth(EME) communication system in the 1296 MHz amateur radio band hasbeen successfully accomplished. Using the radar equation and thermal noisetheory, in conjunction with measured and estimated system parameters, thelunar echo signal to noise ratio (SNR) has been estimated at 5. READ MORE

  4. 4. NUMERICAL SIMULATIONS OF FRICTION-INDUCED NOISE OF AUTOMOTIVE WIPER SYSTEMS

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Océane Roure; [2015]
    Keywords : Squeal noise; wiper system; numerical simulations; finite element model; mode-coupling; design of experiments; Farmer diagram;

    Abstract : Automotive parts may be the cause of very annoying friction-induced noise and the source of many customer complaints. Indeed, when a wiper operates on a windshield, vibratory phenomena may appear due to flutter instabilities and may generate squeal noise. READ MORE

  5. 5. Test background estimates for resonance measurements using a combination of mixed events and like sign pairs

    University essay from Lunds universitet/Partikelfysik; Lunds universitet/Fysiska institutionen

    Author : Fabian Alexander Jürgen Thiele; [2015]
    Keywords : Physics and Astronomy;

    Abstract : Two approaches for extracting properties of neutral resonances out of invariant mass distributions are presented: like-sign and event-mixing signal. Additionally a correction function based on event-mixing, aimed at revising detection differences of opposite charged particles, which is applied to the like-sign signal is tested. READ MORE