BROAD-BAND PROPERTIES OF BIPOLAR-TRANSISTOR SELF-EXCITED OSCILLATORS TUNED BY VARACTORS

Authors
GREBENNIKOV AV
Citation
Av. Grebennikov, BROAD-BAND PROPERTIES OF BIPOLAR-TRANSISTOR SELF-EXCITED OSCILLATORS TUNED BY VARACTORS, Telecommunications & radio engineering, 48(10), 1993, pp. 91-95
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic",Telecommunications
Journal title
Telecommunications & radio engineering → ACNP
ISSN journal
00402508
Volume
48
Issue
10
Year of publication
1993
Pages
91 - 95
Database
ISI
SICI code
0040-2508(1993)48:10<91:BPOBSO>2.0.ZU;2-Z
Abstract
Self-excited oscillatory systems with electronic frequency tuning over a wide frequency band with different bipolar-transistor circuit confi gurations are considered. Expressions are obtained and represented in generalized parameters for calculating the tuning ranges of the self-e xcited oscillatory systems investigated. The effect of the point where the varactors are connected in the oscillatory systems on its broadba nd properties is analyzed. The basic circuit and experimental characte ristics of a broadband UHF self-excited oscillator using a microwave b ipolar transistor are presented.415