ACTIVE HIGH-FREQUENCY FILTER Russian patent published in 1994 - IPC

Abstract RU 2020732 C1

FIELD: radio engineering. SUBSTANCE: active high-frequency filter has first and second transistors 1 and 2, first, second, third, and fourth resistors 3-6, first, second, and third capacitors 7-9. Positive feedback through capacitor 7 affords enlarged working frequency range and proper selection of ratings of passive components raises Q-factor and stability. EFFECT: enlarged working frequency range, improved Q-factor and stability of amplitude-frequency response parameters. 1 dwg

Similar patents RU2020732C1

Title	Year	Author	Number
FREQUENCY MULTIPLIER	1990	Utochkin G.V. Goncharenko I.V.	RU2017320C1
ACTIVE FILTER	0	Utochkin Gennadij Vasilevich Rozov Andrej Valentinovich	SU1672556A1
SELF-OSCILLATOR	2009	Lishchishin Viktor Petrovich Bogdanov Aleksandr Sergeevich	RU2394356C1
BALANCE MIXER	1989	Utochkin G.V. Goncharenko I.V. Dvojnin V.N.	RU2017321C1
ACTIVE AERIAL	0	Kurochkin Aleksandr Evdokimovich	SU1748216A2
HIGH-FREQUENCY COMPOSITE TRANSISTOR	0	Sudakov Yurij Ivanovich Bogdanov Aleksandr Sergeevich Nagornyj Dmitrij Yakovlevich	SU1424115A1
VOLTAGE-CONTROLLED GENERATOR	0	Gurenko Valerij Sergeevich	SU944068A1
DEVICE FOR MEASURING MAGNETIC SUSCEPTIBILITY	0	Arsh Emanuel Izrailevich Khandetskij Vladimir Sergeevich	SU907485A1
FREQUENCY-MODULATED QUARTZ GENERATOR	2012	Ivanchenko Jurij Sergeevich	RU2485666C1
ADJUSTABLE GENERATOR WITH SERIAL AND PARALLEL ADJUSTED RESONANT CIRCUITS	2006	Rode Ul'Rikh L. Poddar Adzhaj Kumar Shepf Klaus Jurgen Rebel' Rajmund Chzhan Khua	RU2404505C2

RU 2 020 732 C1

Authors

Utochkin G.V.

Rozov А.V.

Dates

1994-09-30—Published

1989-06-29—Filed