DocumentCode
1981498
Title
Ultrabroadband Electronically Tunable Oscillators
Author
Obregon, J. ; Marechal, P.G. ; Le Tron, Y. ; Funck, R.
Author_Institution
THOMSON-CSF - Division DCM - Domaine de Corbeville - B.P. N? 10 - 91401 ORSAY
fYear
1981
fDate
7-11 Sept. 1981
Firstpage
475
Lastpage
479
Abstract
This paper describes the results obtained on two types of very broadband tunable sources. - A bipolar-varactor oscillator has been designed showing a tunability from 3 to 9,4 GHz. This result was obtained with a slope compensating circuit placed between the emitter and the hyperabrupt tuning varactor. The output power was 10 mW in the bandwidth. - A decade bandwidth FET-YIG tuned oscillator was calculated using two YIG spheres : one coupled to the gate and the other to the source. An experimental oscillator was realized with a linear tunability from 2 GHz to 20 GHz, without jumps, and few milliwatts output power.
Keywords
Bandwidth; Bipolar transistors; Coupling circuits; FETs; Frequency; Inductance; Oscillators; Power generation; Tunable circuits and devices; Varactors;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1981. 11th European
Conference_Location
Amsterdam, Netherlands
Type
conf
DOI
10.1109/EUMA.1981.332946
Filename
4131658
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