JPS5535501A - Transmission frequency convertor - Google Patents

Transmission frequency convertor

Info

Publication number
JPS5535501A
JPS5535501A JP10808778A JP10808778A JPS5535501A JP S5535501 A JPS5535501 A JP S5535501A JP 10808778 A JP10808778 A JP 10808778A JP 10808778 A JP10808778 A JP 10808778A JP S5535501 A JPS5535501 A JP S5535501A
Authority
JP
Japan
Prior art keywords
input
output
input signal
circuit
frequency
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
JP10808778A
Other languages
Japanese (ja)
Inventor
Masao Miyazaki
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP10808778A priority Critical patent/JPS5535501A/en
Publication of JPS5535501A publication Critical patent/JPS5535501A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To prevent higher harmonic spurious of an IF input signal and deterioration of transmittor distortion, and to make high gain coversion of the IF input signal to converted output available through inserting a frequency separating circuit in the input and the output sides respectively of a transistor. CONSTITUTION:An intermediate frequency input signal fIF from a terminal 1 is input together with a local input signal f1 to an input signal separating circuit 15 consisting of LPF 5 and BPF 11. Its output is applied to the base of a transistor TR10 through a matching circuit 7. The TR10 is excited in its capacity between the collector and the base to implement frequency conversion. The output of the TR10 is outputted from a terminal 3 through a matching circuit 9 and an output frequency separating circuit organized same as the input side. Through this the input f1 and the converted output fO can implement impedance matching with the TR10 without any influence by the fIF input side circuit.
JP10808778A 1978-09-05 1978-09-05 Transmission frequency convertor Pending JPS5535501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10808778A JPS5535501A (en) 1978-09-05 1978-09-05 Transmission frequency convertor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10808778A JPS5535501A (en) 1978-09-05 1978-09-05 Transmission frequency convertor

Publications (1)

Publication Number Publication Date
JPS5535501A true JPS5535501A (en) 1980-03-12

Family

ID=14475532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10808778A Pending JPS5535501A (en) 1978-09-05 1978-09-05 Transmission frequency convertor

Country Status (1)

Country Link
JP (1) JPS5535501A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02188008A (en) * 1989-01-17 1990-07-24 Fujitsu Ltd Mixer circuit
US5781849A (en) * 1995-05-12 1998-07-14 Telefonaktiebolaget Lm Ericsson Spurious signal reduction in RF transmitter integrated circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02188008A (en) * 1989-01-17 1990-07-24 Fujitsu Ltd Mixer circuit
US5781849A (en) * 1995-05-12 1998-07-14 Telefonaktiebolaget Lm Ericsson Spurious signal reduction in RF transmitter integrated circuits

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