Sökning: "DECT"

Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet DECT.

  1. 1. The development of wireless infrastructure standards

    Författare :Fredrik Gessler; KTH; []
    Nyckelord :standards; standardisation; wireless communication; technologocial development; development process; DECT; WCDMA; 3G;

    Sammanfattning : This thesis treats the development of wirelessinfrastructure standards resulting from co-operative research,development and standardisation efforts. It strives to identifykey influences on this development process, and toconceptualise the process itself. LÄS MER

  3. 2. Integrated Frequency Synthesis for Convergent Wireless Solutions

    Författare :Jad G. Atallah; Mohammed Ismail Elnaggar; Erik Bruun; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wireless; transceiver; Bluetooth; DECT; GSM; 3G; LTE; WLAN; WiMAX; multi-standard; vertical handover; Sniffer; frequency synthesizer; phase-locked loop; PLL; sigma-delta; calibration; Electronics; Elektronik;

    Sammanfattning : Wireless transceivers combining several standards in one unit are of key importance. In order to reach the ultimate goal of maximizing the performance-to-cost ratio of such modules, a careful study of the target application, the architecture, and the frequency planning is strongly required. LÄS MER

  4. 3. The development of the DECT standard : an example of technical standardisation wireless communications

    Författare :Fredrik Gessler; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 4. Health symptoms and potential effects on the blood-brain and blood-cerebrospinal fluid barriers associated with use of wireless telephones

    Författare :Fredrik Söderqvist; Lennart Hardell; David Carpenter; Örebro universitet; []
    Nyckelord :radiofrequency fields; mobile telephone; DECT-telephone; cordless telephone; children; adolescents; well-being; choroid plexus; biomarkers; S100B; transthyretin; MEDICINE; MEDICIN; Medicine; Medicin;

    Sammanfattning : Recent years have seen a rapid increase in the use of wireless telephones, yet little systematic data exist on the actual use of such devices in the general population. Mobile and cordless telephones emit radiofrequency fields (RF) raising concern about possible adverse health effects. LÄS MER

  7. 5. Power Amplifier Circuits in CMOS Technologies

    Författare :Jonas Fritzin; Atila Alvandpour; Henrik Sjöland; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The wireless market has experienced a remarkable development and growth since the introduction of the first mobile phone systems, with a steady increase in the number of subscribers, new application areas, and higher data rates. As mobile phones and wireless connectivity have become consumer mass markets, a prime goal of the IC manufacturers is to provide low-cost solutions. LÄS MER