Sökning: "CLMA"

Hittade 3 avhandlingar innehållade ordet CLMA.

  1. 1. Efficient and Wideband Load Modulated Power Amplifiers for Wireless Communication

    Författare :Han Zhou; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GaN; energy efficiency; load modulation; Combiner synthesis; RF; wideband; Doherty; power amplifier; CLMA; SCLMA; microwave;

    Sammanfattning : The increasing demand for mobile data traffic has resulted in new challenges and requirements for the development of the wireless communication infrastructure. With the transition to higher frequencies and multi-antenna systems, radio frequency (RF) hardware performance, especially the power amplifier (PA), becomes increasingly important. LÄS MER

  3. 2. Theory and Design of Efficient Active Load Modulation Power Amplifiers

    Författare :Han Zhou; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GaN; circulator; non-reciprocity; Doherty power amplifier; Combiner synthesis; CLMA; deep power back-off; energy efficiency;

    Sammanfattning : The increasing demand for mobile data traffic has put new challenges and requirements for the development of the wireless communication infrastructure. The performance of the RF power amplifier (PA) is, in particular, of great importance, since it is the key building block for microwave transmitters in base stations and radio link equipment. LÄS MER

  4. 3. Impaired glucose tolerance in ischemic heart disease

    Författare :Loghman Henareh; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Diabetes mellitus; myocardial infarction; atherosclerosis; endothelial dysfunction; inflammation; microalbumiuria; left ventricular hypertrophy; tissue Doppler.;

    Sammanfattning : Background: Diabetes mellitus (DM) and impaired glucose tolerance test (IGT) are well known risk factors for cardiovascular disease (CVD). Individuals with IGT, a prediabetic state, are asymptomatic during many years and they often remain undiagnosed until they have developed overt diabetes or cardiovascular complications. LÄS MER