Search for dissertations about: "IQ mixer"

Found 5 swedish dissertations containing the words IQ mixer.

2. 1. Classical and Quantum Correlations in Microwave Frequency Combs

   Author : Shan Williams Jolin; David B. Haviland; Pertti Hakonen; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Josephson junctions; parametric amplifiers; multipartite entanglement; microwaves; frequency comb; Gaussian states; bichromatic pump; surface acoustic waves; IQ mixer; fully inseparable states; superconducting circuits; hybrid circuits; intermodulation; nonlinear resonators; Material and Nano Physics; Material- och nanofysik;

   Abstract : Denna avhandling undersöker korrelationer i frekvensdomänen, av både klassiskt och kvantmekaniskt ursprung, i icke-linjära mikrovågskretsar. Syftet är att utveckla en kompakt metod för att generera kvantmekaniska korrelationer mellan harmoniska oscillatorer (s.k. READ MORE

4. 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 : 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

5. 3. Advanced Schottky Diode Receiver Front-Ends for Terahertz Applications

   Author : Peter Sobis; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; terahertz electronics; TRL-calibration; frequency converters; down converters; phase shifters; S-parameter measurements; Schottky diodes; subharmonic mixers; radiometers; terahertz technology; submillimetre wave technology; heterodyne receivers; differential phase shifters; sideband separating mixers;

   Abstract : This thesis treats the development of high frequency circuits for increased functionality of terahertz receiver front-ends based on room temperature Schottky diode technology. This includes the study of novel circuit integration schemes, packaging concepts as well as new measurement and characterisation techniques. READ MORE

6. 4. Contact Allergy to Acrylates

   Author : Anthony Goon; Yrkes- och miljödermatologi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; volatility; stability; screening; allergic contact dermatitis; Acrylates; baseline series; contact allergy; dental; gel permeation chromatography; high performance liquid chromatography; industrial; patch testing; methacrylates;

   Abstract : Acrylate contact allergy has been frequently reported since the 1970s, with hundreds of articles published in dermatology journals so far. The purpose of this thesis was to investigate the frequency of contact allergy to acrylates / methacrylates in patients with exposure to industrial, dental and nail uses of these substances. READ MORE

7. 5. 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 : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   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