JPS5535532A - Frequency conversion unit - Google Patents

Frequency conversion unit

Info

Publication number
JPS5535532A
JPS5535532A JP10859378A JP10859378A JPS5535532A JP S5535532 A JPS5535532 A JP S5535532A JP 10859378 A JP10859378 A JP 10859378A JP 10859378 A JP10859378 A JP 10859378A JP S5535532 A JPS5535532 A JP S5535532A
Authority
JP
Japan
Prior art keywords
frequency
filter
electronic tuning
local oscillator
conversion unit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP10859378A
Other languages
Japanese (ja)
Inventor
Motoharu Otomo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10859378A priority Critical patent/JPS5535532A/en
Publication of JPS5535532A publication Critical patent/JPS5535532A/en
Pending legal-status Critical Current

Links

Landscapes

  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE: To eliminate the deterioration of a noise figure by changing the center frequency of a filter, which stops an image frequency, and the local oscillation frequency while interlocking each other in the frequency conversion unit used for a radar, etc.
CONSTITUTION: An electronic tuning filter using a dielectric resonator is used as filter 402, and an electronic tuning local oscillator using a dielectric resonator is used as local oscillator 405, and their outputs are mixed by mixer 404 to obtain the conversion frequency from output terminal 412. Control voltage Vc applied to terminal 409 from the external is divided into voltages V1 and V2 by tuning bias control circuit 408 and is supplied to electronic tuning filter 402 and electronic tuning local oscillator 405, and the center frequency of image suppression filter 402 is caused to agree with the image frequency while holding the conversion frequency constant.
COPYRIGHT: (C)1980,JPO&Japio
JP10859378A 1978-09-06 1978-09-06 Frequency conversion unit Pending JPS5535532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10859378A JPS5535532A (en) 1978-09-06 1978-09-06 Frequency conversion unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10859378A JPS5535532A (en) 1978-09-06 1978-09-06 Frequency conversion unit

Publications (1)

Publication Number Publication Date
JPS5535532A true JPS5535532A (en) 1980-03-12

Family

ID=14488731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10859378A Pending JPS5535532A (en) 1978-09-06 1978-09-06 Frequency conversion unit

Country Status (1)

Country Link
JP (1) JPS5535532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57178025A (en) * 1981-04-22 1982-11-02 Kobe Steel Ltd Ground amending device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57178025A (en) * 1981-04-22 1982-11-02 Kobe Steel Ltd Ground amending device
JPS6339728B2 (en) * 1981-04-22 1988-08-08 Kobe Steel Ltd

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