FIELD: radio engineering and communications.
SUBSTANCE: invention relates to wideband radio transmitters with a low level of intermodulation distortion and increased temperature stability of characteristics. Method includes a multi-stage power amplifier, commutated harmonic filters, an antenna device, a controller, an output stage transistor temperature sensor, a DAC, the level of the analog signal coming from the DAC outputs to the gates of the transistors of the amplifier stages operating in nonlinear modes is selected by the controller for each frequency from the matrix stored in the memory device.
EFFECT: technical result is to reduce intermodulation interference to a given level.
1 cl, 2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MULTI-STAGE DOHERTY POWER AMPLIFIER AND TRANSMITTER | 2017 |
|
RU2735905C1 |
| TRANSISTOR-BASED POWER AMPLIFIER OF RADIO TRANSMITTER | 2011 |
|
RU2465719C1 |
| POWER ADDER | 1991 |
|
RU2074509C1 |
| METHOD FOR GENERATION OF SINGLE-BAND SIGNAL IN TRANSISTOR TRANSMITTER AND DEVICE WHICH IMPLEMENTS SAID METHOD | 1999 |
|
RU2155445C1 |
| PRE-DISTORTED SIGNAL GENERATION METHOD | 2019 |
|
RU2726184C1 |
| SYSTEM OF DETECTION AND IDENTIFICATION OF OBJECTS INCLUDING ELEMENTS WITH NONLINEAR CURRENT-VOLTAGE CHARACTERISTIC | 2004 |
|
RU2291462C2 |
| LINEARIZED AMPLIFIER | 1994 |
|
RU2096909C1 |
| METHOD FOR CORRECTING NONLINEAR DISTORTIONS IN ELECTRIC SIGNAL AMPLIFIER | 2005 |
|
RU2294052C9 |
| RADIO TRANSMITTER WITH DIGITAL CORRECTION OF NONLINEARITY | 2019 |
|
RU2731135C1 |
| RECEIVING DEVICE WITH DIGITAL PROCESSING OF RECEIVED SIGNALS | 2011 |
|
RU2485722C2 |
