Die ontwikkeling van 'n koaksiale resoneerderfilter vir implementering in L-band dipleksers

Date
1999-10
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : Stellenbosch University
Abstract
ENGLISH ABSTRACT: The development of a low loss coaxial resonator and the integration of it into a coupled - resonator filter is discussed in the thesis. The filter is of a bandpass type and is used in an L-band diplexer. The filter has a 2% bandwidth at a center frequency of 1.542 GHz. The resonator is developed from fundamental principles and practical considerations to a capacitively-coupled transmission line structure. Various coaxial topologies are investigated in the process and compared. An accurate network and transmissionline model is postulated and compared with practical measurements. Finally an inductively - coupled resonator filter is developed utilising the realised coaxial resonator.
AFRIKAANSE OPSOMMING: Die ontwikkeling van 'n laeverlies koaksiale resoneerder en integrasie in 'n gekoppelde resoneerderfilter word in hierdie verhandeling bespreek. Die filter is 'n banddeurlaatprototipe en vind toepassing in 'n L-band diplekser. Die filter het 'n senterfrekwensie by 1.54 GHz met 'n bandwydte van 2%. Die resoneerder word vanaf grondbeginsels en praktiese oorwegings ontwikkel tot 'n kapasitief gekoppelde transmissielynstruktuur. Verskillende koaksiale topologiee word in die proses ondersoek en met mekaar vergelyk. 'n Akkurate netwerk- en transmissielynmodel word gepostuleer en word met praktiese metings vergelyk. Ten slotte word 'n induktief gekoppelde resoneerderfilter ontwikkel deur hierdie gerealiseerde koaksiale resoneerder te gebruik.
Description
Thesis (M.Ing.) -- University of Stellenbosch 1999.
Keywords
Resonators, Coaxial resonators, Coupled-resonator filters, Diplexer, Capacitive coupling, Dissertations -- Electronic engineering
Citation