Sökning: "LNA"

Visar resultat 11 - 15 av 73 avhandlingar innehållade ordet LNA.

1. 11. InP HEMT Technology and Applications

   Författare :Anders Mellberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Indium phosphide InP ; cryogenic LNA; high electron mobility transistor HEMT ; metal-insulator-metal capacitor; MODFET; thin film resistor; semiconductor device fabrication; MMIC;

   Sammanfattning : Indium phosphide high electron mobility transistors (InGaAs/InAlAs/InP HEMTs) exhibit the highest cut-off frequencies and the lowest microwave noise figures of all transistor technologies. Both InP HEMT technology and associated circuit demonstrators are therefore interesting to explore further. LÄS MER

3. 12. Novel Pentofuranose Chemistry to Modulate RNA Function

   Författare :Mansoureh Karimiahmadabadi; Jyoti Chattapadhyaya; Jesper Wengel; Uppsala universitet; []
   Nyckelord :pentofuranose chemistry; conformationally locked nucleoside; carbocyclic-LNA; bicyclo[2.2.1]heptane;

   Sammanfattning : Chemical modifications of oligonucleotides provide an important tool to understand how the natural substrate works as well as how to improve their biochemical and biological properties as potential therapeutics and diagnostics. Our carba-LNA (2',4'-carba-bridged Locked Nucleic Acid) modified oligo-DNA or -RNA have been found to be useful to modulate oligo-RNA and -DNA activity. LÄS MER

4. 13. Spin Torque Oscillator Modeling, CMOS Design and STO-CMOS Integration

   Författare :Tingsu Chen; Ana Rusu; Atila Alvandpour; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; STO technology; microwave oscillator; analytical model; macrospin approximation; Verilog-A model; high frequency CMOS circuits; balun-LNA; STO-IC integration; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : Spin torque oscillators (STOs) are microwave oscillators with an attractive blend of features, including a more-than-octave tunability, GHz operating frequencies, nanoscale size, nanosecond switching speed and full compatibility with CMOS technology. Over the past decade, STOs' physical phenomena have been explored to a greater extent, their performance has been further improved, and STOs have already shown great potential for a wide range of applications, from microwave sources and detectors to neuromorphic computing. LÄS MER

5. 14. CMOS High Frequency Circuits for Spin Torque Oscillator Technology

   Författare :Tingsu Chen; Ana Rusu; Jerzy Dabrowski; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microwave integrated circuit; CMOS; spin torque oscillator; Balun-LNA; wideband amplifier; on-chip bias-tee; multi-standard multi-band radios;

   Sammanfattning : Spin torque oscillator (STO) technology has a unique blend of features, including but not limited to octave tunability, GHz operating frequency, and nanoscaled size, which makes it highly suitable for microwave and radar applications. This thesis studies the fundamentals of STOs, utilizes the state-of-art STO's advantages, and proposes two STO-based microwave systems targeting its microwave applications and measurement setup, respectively. LÄS MER

7. 15. InP-based heterostructure field effect transistors and millimeter wave integrated circuits

   Författare :Anders Mellberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; passive components; InP; MIM capacitor; high electron mobility transistor HEMT ; monolithic microwave integrated circuit MMIC ; CPW; TL; 2DEG; heterostructure field effect transistor HFET ; spiral inductor; modeling; wideband LNA; coplanar waveguides; microstrip transmission line; modulation doped field effect transistor MODFET ; III-V semiconductor; low noise amplifier; compound semiconductor; thin film resistor TFR ; indium phosphide; low noise amplifier;

   Sammanfattning : .... LÄS MER