Sökning: "li rong zheng"

Visar resultat 1 - 5 av 19 avhandlingar innehållade orden li rong zheng.

1. 1. All Digital Polar Transmitter Design for Software Defined Radio : Architecture and Low Power Circuit Implementation

   Författare :Liang Rong; Li-Rong Zheng; Henrik Sjöland; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Switching Power Amplifier; All Digital Polar Transmitter; Lowpass Sigma Delta Modulation; Software Defined Radio; RFID; H-Bridge Architecture; Resonating; Filter Matching Network.; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Sammanfattning : The evolving wireless communication technology is aiming highdata rate, high mobility, long distance and at the meantime, co-existwith various different standards. This developing trend requires ahighly linear transceiver system and it causes the problem of lowefficiency due to the large crest factor of signals. LÄS MER

3. 2. Nanofibrillar Materials for Organic and Printable Electronics

   Författare :Ana Lopez Cabezas; Li-Rong Zheng; Shi-Li Zhang; Zhi-Bin Zhang; Donald Lupo; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organic electronics; polyaniline; carbon nanotubes; composite; spray coating; solution processability; morphology; electrical conductivity; ageing; sensor; system integration;

   Sammanfattning : In recent years, organic electronics have attracted great attention due to their multiple advantages such as light weight, flexibility, large area fabrication and cost-effective production processes. The recent progress in fabricating organic electronic devices has been achieved with the development of new materials which provide competing functionalities to the electronics devices. LÄS MER

4. 3. Design, analysis and integration of mixed-signal systems for signal and power integrity

   Författare :Li-Rong Zheng; KTH; []
   Nyckelord :signal integrity; power distribution; interconnects; deep submicron circuits; system-on-chip; system-in-package; mixed signalsystem; single level integration;

   Sammanfattning : .... LÄS MER

5. 4. Ultra Wideband Impulse Radio for Wireless Sensing and Identification

   Författare :Majid Baghaei Nejad; Li-Rong Zheng; Kari Halonen; KTH; []
   Nyckelord :Ubiquitous computing; Impulse Radio; Ultra wideband; RFID; Wireless sensor; WSN; Antenna; System-on-Package; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Ubiquitous computing and Internet-of-Things (IoT) implies an untapped opportunity in the realm of information and communication technology, in which a large number of micro-devices with communication and/or computing capabilities, provides connectivity for anything, by anyone at anytime and anywhere. Especially, these devices can be equipped with sensors and actuators that interact with our living environment. LÄS MER

7. 5. Design of efficient high-speed on-chip global interconnects

   Författare :Peter Caputa; Li-Rong Zheng; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The development of integrated circuits is continuously moving towards a System-on­ Chip realization where global interconnects, connecting circuit blocks separated by a long distance, have been considered a showstopper for process scaling due to their RC-delays. Our knowledge today is that high-speed interconnects must be described by models which include not only R and C, but also inductance and skin effect. LÄS MER