DocumentCode
1969215
Title
A 14 GHz-Low Noise-Down-Converter with Sum and Image Rejection
Author
Dobramysl, Dieter
Author_Institution
SIEMENS AG, Zentrallaboratorium fÿr Nachrichtentechnik, HofmannstraÃ\x9fe 51 D8000 Mÿnchen 70
fYear
1976
fDate
14-17 Sept. 1976
Firstpage
660
Lastpage
663
Abstract
The design and the experimental performance of a single-ended waveguide-mixer operating at a signal frequency of 14 GHz - 14.5 GHz and an IF of 3.7 GHz to 4.2 GHz is reported. The conversion loss over the IF bandwidth of 500 MHz was < 3.5 dB. The optimum load impedance for the mixer diode at the sum frequency is provided by a bandstop-filter, whereas at the image-frequency band the cut-off property of the waveguide is used. Also the theory of the mixing process of a Z and Y mixer is given. A computer analysis of the influence of the diode series resistance and junction capacitance on the conversion loss is presented.
Keywords
Bandwidth; Capacitance; Circuits; Cutoff frequency; Diodes; Frequency conversion; Image converters; Impedance; Mixers; Power harmonic filters;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1976. 6th European
Conference_Location
Rome, Italy
Type
conf
DOI
10.1109/EUMA.1976.332356
Filename
4131022
Link To Document