GB1089339A - Improvements in or relating to multiplicative mixing with transistors - Google Patents
Improvements in or relating to multiplicative mixing with transistorsInfo
- Publication number
- GB1089339A GB1089339A GB44547/64A GB4454764A GB1089339A GB 1089339 A GB1089339 A GB 1089339A GB 44547/64 A GB44547/64 A GB 44547/64A GB 4454764 A GB4454764 A GB 4454764A GB 1089339 A GB1089339 A GB 1089339A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistors
- oscillator
- impedance
- electrodes
- base
- 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
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)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Amplifiers (AREA)
Abstract
1,089,339. Transistor mixing circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 2, 1964 [Nov. 5, 1963], No. 44547/64. Heading H3T. A multiplicative mixing circuit comprising two transistors T 1 , T 2 has a first signal source, having an impedance which is low. relative to the input impedance between the base electrodes, connected between the base electrodes and a second signal source, having an impedance which is high relative to the input impedance at the emitter electrodes, connected to the emitter electrodes which are interconnected for signal purposes such that the mixing product is obtained from at least one of the collector circuits of the transistors. Fig. 2 shows a self-oscillating mixer, in which input signals from L 1 pass to the base electrodes and an oscillator output from L 2 , is applied to the emitter electrodes via capacitor C 8 and resistor R 6 . The I.F. output is obtained from L 4 . The amplification of the mixer stage can be controlled by an A.G.C. voltage U R applied at AB to the base of T 2 . Negative feedback is provided by resistors R 3 , R 4 which together with R 5 and potential divider R 1 , R 2 provide the working point for the transistors. The oscillator coil L 2 may have a separate primary and secondary winding and a diode (D) may be connected to this coil to limit the amplitude of oscillation of the oscillator output to limit distortion (Figs. 3 and 4, not shown). Alternatively a separate oscillator may be used. Also the mixer could be used for amplitude modulation or measuring purposes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP32917A DE1222128B (en) | 1963-11-05 | 1963-11-05 | Multiplicative mix with transistors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1089339A true GB1089339A (en) | 1967-11-01 |
Family
ID=7372979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB44547/64A Expired GB1089339A (en) | 1963-11-05 | 1964-11-02 | Improvements in or relating to multiplicative mixing with transistors |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3302118A (en) |
| AT (1) | AT258361B (en) |
| BE (1) | BE655353A (en) |
| DE (1) | DE1222128B (en) |
| ES (1) | ES305624A1 (en) |
| FR (1) | FR1413535A (en) |
| GB (1) | GB1089339A (en) |
| NL (1) | NL6412630A (en) |
| SE (1) | SE315930B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491301A (en) * | 1965-10-29 | 1970-01-20 | Motorola Inc | Integrated harmonic mixer circuit including an emitter coupler differential amplifier |
| US3581211A (en) * | 1968-12-24 | 1971-05-25 | Electronic Communications | System for simultaneous reception of multiple signals |
| JPS584851B2 (en) * | 1975-10-27 | 1983-01-28 | ソニー株式会社 | Shuuhasuuhenkanki |
| JPS5474618A (en) * | 1977-11-28 | 1979-06-14 | Toshiba Corp | Frequency conversion circuit |
| US4253196A (en) * | 1980-01-15 | 1981-02-24 | Rca Corporation | Frequency converter, as for first detector of heterodyne radio receiver |
| NL8301099A (en) * | 1983-03-29 | 1984-10-16 | Philips Nv | TUNABLE RECEIVER INPUT CIRCUIT. |
| GB2181914B (en) * | 1985-10-22 | 1989-09-20 | Plessey Co Plc | Frequency doubling oscillator and heterodyne circuit incorporating same |
| IT1213447B (en) * | 1986-12-31 | 1989-12-20 | Sgs Microelettronica Spa | COUPLING CIRCUIT BETWEEN A MODULATOR AND A CERAMIC FILTER FOR RECEIVERS IN AMPLITUDE MODULATION. |
| WO2013060376A1 (en) * | 2011-10-27 | 2013-05-02 | Freescale Semiconductor, Inc. | Receiver circuit, phased-array receiver and radar system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL113274C (en) * | 1957-11-15 | |||
| NL261732A (en) * | 1960-02-29 | |||
| GB885014A (en) * | 1960-03-23 | 1961-12-20 | Marconi Wireless Telegraph Co | Improvements in or relating to mixer circuit arrangements |
| US3184682A (en) * | 1962-08-03 | 1965-05-18 | Iii Daniel J Healey | Low noise frequency changing circuit |
-
1963
- 1963-11-05 DE DEP32917A patent/DE1222128B/en active Pending
-
1964
- 1964-10-30 NL NL6412630A patent/NL6412630A/xx unknown
- 1964-11-02 GB GB44547/64A patent/GB1089339A/en not_active Expired
- 1964-11-02 AT AT926864A patent/AT258361B/en active
- 1964-11-02 SE SE13188/64A patent/SE315930B/xx unknown
- 1964-11-03 ES ES0305624A patent/ES305624A1/en not_active Expired
- 1964-11-03 US US408604A patent/US3302118A/en not_active Expired - Lifetime
- 1964-11-05 BE BE655353A patent/BE655353A/xx unknown
- 1964-11-05 FR FR993922A patent/FR1413535A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1413535A (en) | 1965-10-08 |
| AT258361B (en) | 1967-11-27 |
| NL6412630A (en) | 1965-05-06 |
| DE1222128B (en) | 1966-08-04 |
| ES305624A1 (en) | 1965-04-16 |
| SE315930B (en) | 1969-10-13 |
| BE655353A (en) | 1965-05-05 |
| US3302118A (en) | 1967-01-31 |
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