Sökning: "Sub-millimetre wave"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Sub-millimetre wave.
1. Millimetre wave waveguide enclosed grid frequency multipliers and imaging
Sammanfattning : The utilisation of the THz spectrum ( 0.3-10 THz ) is hampered by fundamental difficulties in generating power at these frequencies. LÄS MER
2. Symmetric varactor frequency multipliers
Sammanfattning : This thesis describes heterostructure barrier varactor (HBV) frequency multipliers for millimetre and sub-millimetre wave applications.The basic principles of HBVs are explained. Starting from basic varactor theory, an equivalent circuit model for HBVs is presented. LÄS MER
3. Low and High Tc Bolometer Detectors for THz Frequencies
Sammanfattning : .... LÄS MER
4. Submillimeter Heterodyne Array for High-speed Radio Astronomy
Sammanfattning : .... LÄS MER
5. Planar Heterostructure Barrier Varactor Diodes for Millimetre Wave Applications
Sammanfattning : This thesis deals with fabrication, characterisation and modelling of the Heterostructure Barrier Varactor (HBV) diode and its use in frequency multiplier applications. Different aspects of material structures and frequency multipliers are described. LÄS MER