DocumentCode :
3624450
Title :
Low Conversion Losses up and Downconverters, Using Dielectric Resonators for Application with Millimetric Telecommunication Systems
Author :
Mahieu Jean Rene
Author_Institution :
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES - Microwave Department - B.P. N? 5 78702 CONFLANS Ste H. - France
fYear :
1976
Firstpage :
664
Lastpage :
668
Abstract :
This paper shows that it is now possible to design devices incorporating dielectric resonators for frequencies up to 40 GHz. Theoretical models have been studied in order to compute with the required accuracy the resonant frequency and coupling coefficients between two resonators and a resonator and a microstrip line. Frequency temperature coefficient variation less than 2 ppm/?C has been achieved using "composite structures". These new temperature compensated resonators have been used in association with a millimetric microstrip low noise mixer and with a millimetric waveguide up converter. In this way, the suppression of the image bandwidth frequency for mixers, or of the lower sideband for up converters leads to a decrease of conversion losses higher than 1 dB.
Keywords :
"Dielectric losses","Resonant frequency","Microstrip resonators","Temperature","Mixers","Image converters","Dielectric devices","Telecommunication computing","Bandwidth","Frequency conversion"
Publisher :
ieee
Conference_Titel :
Microwave Conference, 1976. 6th European
Type :
conf
DOI :
10.1109/EUMA.1976.332357
Filename :
4131023
Link To Document :
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