Wlodyka, 1986 - Google Patents
An intermediate frequency predistortion linearizer for an earth station traveling-wave tube amplifierWlodyka, 1986
View PDF- Document ID
- 13010323840406758935
- Author
- Wlodyka M
- Publication year
External Links
Snippet
In multicarrler single-channel-per-carrier (SCPC) communication system design, intermodulation distortion is often a limiting factor. The intermodulation distortion caused by the AM/AM and AM/PM conversion effect of the microwave transmit high power amplifier …
- 238000000034 method 0 abstract description 96
Classifications
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3282—Acting on the phase and the amplitude of the input signal
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
- H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3209—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion the amplifier comprising means for compensating memory effects
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
- H03F3/602—Combinations of several amplifiers
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—BASIC ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/204—A hybrid coupler being used at the output of an amplifier circuit
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Katz et al. | The evolution of PA linearization: From classic feedforward and feedback through analog and digital predistortion | |
| EP1749359B1 (en) | Digital predistortion system and method for high efficiency trasmitters | |
| Liu et al. | Augmented Hammerstein predistorter for linearization of broad-band wireless transmitters | |
| US7366252B2 (en) | Wideband enhanced digital injection predistortion system and method | |
| KR100806427B1 (en) | Method and apparatus for generating a radio frequency signal | |
| US6307435B1 (en) | High power amplifier linearization method using modified linear-log model predistortion | |
| EP1402625B1 (en) | Composite amplifier with optimized linearity and efficiency | |
| US6072364A (en) | Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains | |
| Sundstrom | Spectral sensitivity of LINC transmitters to quadrature modulator misalignments | |
| US6429740B1 (en) | High power amplifier linearization method using extended saleh model predistortion | |
| KR100959032B1 (en) | Frequency-dependent magnitude predistortion to reduce spurious emissions in communication networks | |
| US20040189378A1 (en) | High-efficiency linear power amplifier | |
| Younes et al. | On the modeling and linearization of a concurrent dual-band transmitter exhibiting nonlinear distortion and hardware impairments | |
| Hammi et al. | Bandwidth and power scalable digital predistorter for compensating dynamic distortions in RF power amplifiers | |
| Wlodyka | An intermediate frequency predistortion linearizer for an earth station traveling-wave tube amplifier | |
| Choffrut et al. | Minimizing spectral leakage of nonideal LINC transmitters by analysis of component impairments | |
| Katz et al. | The evolution of linearizers for high power amplifiers | |
| Katz et al. | Ka/q dual band linearizer | |
| KR20160084579A (en) | Pre-distorting system for compensation of memory-effect | |
| Guo et al. | Indirect learning Hammerstein HPA predistorter for wideband GNSS signals | |
| Singh et al. | Compensation of Power Amplifier Non-linearity for Satellite Communications | |
| Harmon et al. | Remote satellite amplifier predistortion using the indirect learning architecture | |
| Patel | Adaptive digital predistortion linearizer for power amplifiers in military UHF satellite | |
| Rezgui et al. | Digital predistorter design for 110 W class AB UHF power amplifier for DVB-T transmitter | |
| Rey et al. | Linearization performance for a polar work function predistorter |