Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2007. / Clear procedures for designing dielectric resonator oscillators (DROs) are presented in
this thesis, including built examples to validate these design procedures. Both series
and parallel feedback DROs are discussed and the procedures for building them are
presented. Two examples at different frequencies for each type of DRO are constructed
and tested with the results shown. The first is at a frequency of approximately 6.22
GHz and the second for the higher frequency of 11.2 GHz. The DROs for the desired
frequencies are designed using the Microwave Office (MWO) software by AWR with
the design based on the small-signal model (scattering parameters). Oscillators are
produced using the negative resistance method. The circuit achieves low noise by using
a dielectric resonator with a high Q factor. Both the series and parallel feedback DRO
circuits can be mechanically tuned around the resonant frequency to maximize
performance.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/2235 |
| Date | 12 1900 |
| Creators | Alaslami, Nauwaf |
| Contributors | De Swardt, J. B., University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : University of Stellenbosch |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 3005658 bytes, application/pdf |
| Rights | University of Stellenbosch |
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