Electronically tuned 23 GHz Gunn oscillators for a microwave datalink

Simple item page
dc.contributor.advisorDowning, B Jen_ZA
dc.contributor.authorKratzenstein, Len_ZA
dc.date.accessioned2014-10-11T12:05:38Z
dc.date.available2014-10-11T12:05:38Z
dc.date.issued1988en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractA market has been identified for 23 GHz, short-haul, low-capacity, digital radio. The dissertation presents the development of the varactor controlled Gunn oscillators that constitute the crystal locked microwave sources of the radio. An accurate description of a design procedure for Gunn oscillators at 23 GHz is presented. With reference to advanced modulation methods which require constant modulation indices, a method of linearising the voltage/frequency characteristic of the varactor controlled Gunn oscillator is described, which allows direct modulation of the source at 23 GHz. Due to the wide operating temperature of the radio a technique to temperature compensate the oscillator is presented. The dissertation ends with an investigation how the semiconductor device's spread affects the oscillator characteristics and an evaluation of the noise performance of the Gunn oscillator.en_ZA
dc.identifier.apacitationKratzenstein, L. (1988). <i>Electronically tuned 23 GHz Gunn oscillators for a microwave datalink</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/8327en_ZA
dc.identifier.chicagocitationKratzenstein, L. <i>"Electronically tuned 23 GHz Gunn oscillators for a microwave datalink."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1988. http://hdl.handle.net/11427/8327en_ZA
dc.identifier.citationKratzenstein, L. 1988. Electronically tuned 23 GHz Gunn oscillators for a microwave datalink. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kratzenstein, L AB - A market has been identified for 23 GHz, short-haul, low-capacity, digital radio. The dissertation presents the development of the varactor controlled Gunn oscillators that constitute the crystal locked microwave sources of the radio. An accurate description of a design procedure for Gunn oscillators at 23 GHz is presented. With reference to advanced modulation methods which require constant modulation indices, a method of linearising the voltage/frequency characteristic of the varactor controlled Gunn oscillator is described, which allows direct modulation of the source at 23 GHz. Due to the wide operating temperature of the radio a technique to temperature compensate the oscillator is presented. The dissertation ends with an investigation how the semiconductor device's spread affects the oscillator characteristics and an evaluation of the noise performance of the Gunn oscillator. DA - 1988 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1988 T1 - Electronically tuned 23 GHz Gunn oscillators for a microwave datalink TI - Electronically tuned 23 GHz Gunn oscillators for a microwave datalink UR - http://hdl.handle.net/11427/8327 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/8327
dc.identifier.vancouvercitationKratzenstein L. Electronically tuned 23 GHz Gunn oscillators for a microwave datalink. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1988 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/8327en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherElectrical and Electronic Engineeringen_ZA
dc.titleElectronically tuned 23 GHz Gunn oscillators for a microwave datalinken_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_1988_kratzenstein_l.pdf
Size:
4.3 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters