IT1209183B - Frequency converter with active element as amplifier and oscillator - Google Patents

Frequency converter with active element as amplifier and oscillator

Info

Publication number
IT1209183B
IT1209183B IT8019708A IT1970880A IT1209183B IT 1209183 B IT1209183 B IT 1209183B IT 8019708 A IT8019708 A IT 8019708A IT 1970880 A IT1970880 A IT 1970880A IT 1209183 B IT1209183 B IT 1209183B
Authority
IT
Italy
Prior art keywords
frequency
converter
positive feedback
frequencies
signals
Prior art date
Application number
IT8019708A
Other languages
Italian (it)
Other versions
IT8019708A0 (en
Inventor
Sakamoto Kazuo
Hayasaka Takeshi
Original Assignee
Nec Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1258079A external-priority patent/JPS55105408A/en
Priority claimed from JP3649379A external-priority patent/JPS55128933A/en
Application filed by Nec Corp filed Critical Nec Corp
Publication of IT8019708A0 publication Critical patent/IT8019708A0/en
Application granted granted Critical
Publication of IT1209183B publication Critical patent/IT1209183B/en

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  • Amplifiers (AREA)

Abstract

A frequency converter has an active component acting both for amplification and for oscillation purposes. The converter transforms two signals of different frequencies into a signal of a third frequency. The two frequencies are supplied at different inputs. The two frequencies are mixed and the converter also has a positive feedback device connected to the second input. The amplification circuit (108) of the first and second signal feeds directly to the frequency mixer (110). The frequency mixer reflects any signals outside of the frequency band of the third frequency. The reflected signals are conducted to one output (121) whereas the positive feedback is connected to the other output terminal. The reflected signals are conducted to one output (121) whereas the positive feedback is connected to the other output terminal. The amplification and oscillation process of the amplifier takes place in the linear region.
IT8019708A 1979-02-06 1980-02-05 Frequency converter with active element as amplifier and oscillator IT1209183B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1258079A JPS55105408A (en) 1979-02-06 1979-02-06 Reception frequency converting device
JP3649379A JPS55128933A (en) 1979-03-28 1979-03-28 Reception frequency converting device

Publications (2)

Publication Number Publication Date
IT8019708A0 IT8019708A0 (en) 1980-02-05
IT1209183B true IT1209183B (en) 1989-07-16

Family

ID=26348204

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8019708A IT1209183B (en) 1979-02-06 1980-02-05 Frequency converter with active element as amplifier and oscillator

Country Status (1)

Country Link
IT (1) IT1209183B (en)

Also Published As

Publication number Publication date
IT8019708A0 (en) 1980-02-05

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