Sökning: "mm-wave"
Visar resultat 16 - 20 av 52 avhandlingar innehållade ordet mm-wave.
16. Development of a Sideband Separating SIS Mixer Technology for MM-Wavelengths
Sammanfattning : This thesis presents work done in developing instrumentation for mm-wave radio astronomy. The main subject of the thesis is a sideband separating (2SB) receiver for 85-115 GHz based on a quadrature scheme with two identical SIS mixer junctions pumped by a LO applied with 90° phase difference. LÄS MER
17. MM-wave integrated RF-MEMS tunable cavity resonators, filters and ultra-low phase-noise oscillators
Sammanfattning : Within the Microelectronics Industry, the core research is focused on the realization of the Moore's law, which states that circuit density doubles every 24 months, shaping the framework of the More of Moore paradigm. However, Moore's law is expected to end, as devices are reaching limitations inherent to the approach of the atomical dimensions. LÄS MER
18. Lumped arrays of Josephson junction oscillators
Sammanfattning : .... LÄS MER
19. Frequency Selective Cold-Electron Bolometer Arrays
Sammanfattning : This work presents the integration of the Cold-Electron Bolometer (CEB) in Frequency Selective Surface (FSS) based arrays targeting balloon-borne telescope missions with high incident power requirements (typically tens of pW). FSS are planar frequency sensitive structures typically consisting of repeating pattern of a simple motif like square, circle, etc. LÄS MER
20. A study of oscillator phase noise
Sammanfattning : .... LÄS MER