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Keywords
(3)
High Efficiency
Power Amplifier
Rf Power Amplifier
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On the Continuity of High Efficiency Modes in Linear RF Power Amplifiers
On the Continuity of High Efficiency Modes in Linear RF Power Amplifiers,10.1109/LMWC.2009.2029754,IEEE Microwave and Wireless Components Letters,Stev
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On the Continuity of High Efficiency Modes in Linear RF Power Amplifiers
(
Citations: 19
)
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Steve C. Cripps
,
Paul J. Tasker
,
Alan L. Clarke
,
Jonathan Lees
,
Johannes Benedikt
A novel formulation for the voltage waveforms in
high efficiency
linear power amplifiers is described. This formulation demonstrates that a constant optimum efficiency and output power can be obtained over a continuum of solutions by utilizing appropriate harmonic reactive impedance terminations. A specific example is confirmed experimentally. This new formulation has some important implications for the possibility of realizing broadband >10%
high efficiency
linear RF power amplifiers.
Journal:
IEEE Microwave and Wireless Components Letters  IEEE MICROW WIREL COMPON LETT
, vol. 19, no. 10, pp. 665667, 2009
DOI:
10.1109/LMWC.2009.2029754
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Citation Context
(12)
...The required voltage waveforms are defined by equation (1), [2], which has been derived from the generic factorial representation of voltage waveforms, originally derived by Cripps [
4
]:...
V. Carrubba
,
et al.
A novel highly efficient broadband continuous classF RFPA delivering ...
...In [
5
] it was noted that there exists a set of 2nd harmonic and fundamental impedance pairs that form a pool of impedances, the design space...
...Following analysis in [
5
], closed form equations for the design space have been derived and are given by (1) and (2), both normalized to the typical class A,B loadline resistance RL and generalized by inclusion of the conduction angle...
K. Mimis
,
et al.
A 2GHz GaN ClassJ power amplifier for base station applications
...The ClassJ loading conditions can be related to its classB counterpart [2][
5
] as,...
...Most previous works on classJ and harmonic limited classE operation [
5
], [6] have been focussed on the solution using inductive fundamental loading...
...[
5
]. It is this second solution that has some specific advantages in terms of efficiency for amplifier stages that utilize supply voltage modulation, as will be shown next...
Morteza. S. Alavi
,
et al.
Efficient LDMOS device operation for envelope tracking amplifiers thro...
...The required voltage waveforms are defined by (3), which has been derived from the generic factorial representation of voltage waveforms as defined by Cripps et al. [
4
]...
Vincenzo Carrubba
,
et al.
On the Extension of the Continuous ClassF Mode Power Amplifier
...This permits a wide range of solutions for a given set of harmonic terminations which can be utilized to obtain high efficiency across the band of interest [
2
]...
Neal Tuffy
,
et al.
ClassJ RF power amplifier with wideband harmonic suppression
References
(4)
ClassE, ClassC, and ClassF power amplifiers based upon a finite number of harmonics
(
Citations: 74
)
Frederick H. Raab
Journal:
IEEE Transactions on Microwave Theory and Techniques  IEEE TRANS MICROWAVE THEORY
, vol. 49, no. 8, pp. 14621468, 2001
Output universality in maximum efficiency linear power amplifiers
(
Citations: 11
)
J. D. Rhodes
Journal:
International Journal of Circuit Theory and Applications  INT J CIRCUIT THEOR APPL
, vol. 31, no. 4, pp. 385405, 2003
Electronic multiharmonic loadpull system for experimentally driven power amplifier design optimization
(
Citations: 10
)
M. S. Hashmi
,
A. L. Clarke
,
S. P. Woodington
,
J. Lees
,
J. Benedikt
,
P. J. Tasker
Conference:
Microwave, MTTS International Symposium  MTT
, pp. 15491552, 2009
An efficient, linear, broadband classJmode PA realised using RF waveform engineering
(
Citations: 16
)
Peter Wright
,
J. Lees
,
P. J. Tasker
,
J. Benedikt
,
Steve C. Cripps
Conference:
Microwave, MTTS International Symposium  MTT
, pp. 653656, 2009
Sort by:
Citations
(19)
A novel highly efficient broadband continuous classF RFPA delivering 74% average efficiency for an octave bandwidth
(
Citations: 1
)
V. Carrubba
,
J. Lees
,
J. Benedikt
,
P. J. Tasker
,
S. C. Cripps
Conference:
Microwave, MTTS International Symposium  MTT
, pp. 14, 2011
A 2GHz GaN ClassJ power amplifier for base station applications
(
Citations: 1
)
K. Mimis
,
K. A. Morris
,
J. P. McGeehan
Conference:
IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications  PAWR
, 2011
GaAs Xband high efficiency (>65%) Broadband (>30%) amplifier MMIC based on the Class B to Class J continuum
J. R. Powell
,
M. J. Uren
,
T. Martin
,
A. McLachlan
,
P. Tasker
,
S. Woodington
,
J. Bell
,
R. Saini
,
J. Benedikt
,
S. C. Cripps
Conference:
Microwave, MTTS International Symposium  MTT
, pp. 14, 2011
Efficient LDMOS device operation for envelope tracking amplifiers through second harmonic manipulation
Morteza. S. Alavi
,
Fred van Rijs
,
Mauro Marchetti
,
Michele Squillante
,
Tao Zhang
,
Steven J. C. H. Theeuwen
,
Yuri Volokhine
,
H. F. F. Jos
,
Mark P. v. d. Heijden
,
Mustafa Acar
,
Leo C. N. de Vreede
Conference:
Microwave, MTTS International Symposium  MTT
, pp. 14, 2011
On the Extension of the Continuous ClassF Mode Power Amplifier
Vincenzo Carrubba
,
Alan. L. Clarke
,
Muhammad Akmal
,
Jonathan Lees
,
Johannes Benedikt
,
Paul J. Tasker
,
Steve C. Cripps
Journal:
IEEE Transactions on Microwave Theory and Techniques  IEEE TRANS MICROWAVE THEORY
, vol. 59, no. 5, pp. 12941303, 2011