GB2239752B - An improved mixer circuit - Google Patents

An improved mixer circuit

Info

Publication number
GB2239752B
GB2239752B GB9000215A GB9000215A GB2239752B GB 2239752 B GB2239752 B GB 2239752B GB 9000215 A GB9000215 A GB 9000215A GB 9000215 A GB9000215 A GB 9000215A GB 2239752 B GB2239752 B GB 2239752B
Authority
GB
United Kingdom
Prior art keywords
mixer circuit
improved mixer
improved
circuit
mixer
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.)
Expired - Fee Related
Application number
GB9000215A
Other versions
GB2239752A (en
GB9000215D0 (en
Inventor
Peter Henry Saul
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.)
Plessey Semiconductors Ltd
Plessey Co Ltd
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Plessey Semiconductors Ltd
Plessey Co Ltd
Marconi 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 GEC Marconi Ltd, Plessey Semiconductors Ltd, Plessey Co Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB9000215A priority Critical patent/GB2239752B/en
Publication of GB9000215D0 publication Critical patent/GB9000215D0/en
Publication of GB2239752A publication Critical patent/GB2239752A/en
Application granted granted Critical
Publication of GB2239752B publication Critical patent/GB2239752B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Amplifiers (AREA)
GB9000215A 1990-01-05 1990-01-05 An improved mixer circuit Expired - Fee Related GB2239752B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9000215A GB2239752B (en) 1990-01-05 1990-01-05 An improved mixer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9000215A GB2239752B (en) 1990-01-05 1990-01-05 An improved mixer circuit

Publications (3)

Publication Number Publication Date
GB9000215D0 GB9000215D0 (en) 1990-03-07
GB2239752A GB2239752A (en) 1991-07-10
GB2239752B true GB2239752B (en) 1993-10-06

Family

ID=10668868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9000215A Expired - Fee Related GB2239752B (en) 1990-01-05 1990-01-05 An improved mixer circuit

Country Status (1)

Country Link
GB (1) GB2239752B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5933771A (en) * 1997-06-20 1999-08-03 Nortel Networks Corporation Low voltage gain controlled mixer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954947A (en) * 1961-04-12 1964-04-08 Fairchild Camera Instr Co Surface-potential controlled semiconductor device
GB1152278A (en) * 1967-04-13 1969-05-14 Marconi Co Ltd Improvements in or relating to Mixers and Frequency Changers
US3539947A (en) * 1968-05-10 1970-11-10 Western Electric Co Method of operating a single stage as a linear amplitude modulator
EP0087336A1 (en) * 1982-02-12 1983-08-31 Thomson-Csf Transistor mixer for microwave frequency transmitters
EP0223287A1 (en) * 1985-11-05 1987-05-27 Laboratoires D'electronique Philips Semiconductor device for use as a mixer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954947A (en) * 1961-04-12 1964-04-08 Fairchild Camera Instr Co Surface-potential controlled semiconductor device
GB1152278A (en) * 1967-04-13 1969-05-14 Marconi Co Ltd Improvements in or relating to Mixers and Frequency Changers
US3539947A (en) * 1968-05-10 1970-11-10 Western Electric Co Method of operating a single stage as a linear amplitude modulator
EP0087336A1 (en) * 1982-02-12 1983-08-31 Thomson-Csf Transistor mixer for microwave frequency transmitters
EP0223287A1 (en) * 1985-11-05 1987-05-27 Laboratoires D'electronique Philips Semiconductor device for use as a mixer
US4727597A (en) * 1985-11-05 1988-02-23 U.S. Philips Corporation Mixer arrangement

Also Published As

Publication number Publication date
GB2239752A (en) 1991-07-10
GB9000215D0 (en) 1990-03-07

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Legal Events

Date Code Title Description
730A Proceeding under section 30 patents act 1977
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940106