Theoretical Analysis and Computer Simulation of Double Sided n+-n-p-p+ Trapatt Diode Structures

Cottam, M. G.; Geraghty, Sheela R.

doi:10.1109/euma.1973.331601

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Analytical Trapatt Model1

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1979

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“…In order to model the diodes used for the experiments, a symmetrical ptpnntstructure with equal doping densities NA = ND = N is assumed. As shown previously [2] , the internal dynamics of such a diode can be described by the avalanche-shockfront-theory [3,4] . Thereby two travelling avalanche Lehrstuhl f. technische Elektronik, Techhische Universiitat MUnchen, Arcisstr.…”

Section: Analytical Trapatt Modelmentioning

confidence: 99%

The Influence of Harmonic Injection on Power, Efficiency and Stability of Trapatt Amplifiers

Käppeler

1979

9th European Microwave Conference, 1979

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It is shown by an analytical model, that power and efficiency of TRAPATT diodes are limited by the fact, that the optimum diode impedances cannot be matched with a passive load circuit at some harmonics of the oscillation. These restrictions can be overcome by injection of a small amount of power at the respective harmonics. The experimental verification of this method has been performed with an unique lumped element circuit. By injection of the third harmonic fundamental power and efficiency could almost be doubled. At 1,7 GHz a peak power of 23o W with a total efficiency of 46 % has been achieved. The maximum gain (from the third to the first harmonic) was 23 dB. The good symmetry of the output spectrum indicates high phase and amplitude stability.

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Section: Analytical Trapatt Modelmentioning

confidence: 99%

The Influence of Harmonic Injection on Power, Efficiency and Stability of Trapatt Amplifiers

Käppeler

1979

9th European Microwave Conference, 1979

View full text Add to dashboard Cite

show abstract

Theoretical Analysis and Computer Simulation of Double Sided n+-n-p-p+ Trapatt Diode Structures

Cited by 1 publication

References 6 publications

The Influence of Harmonic Injection on Power, Efficiency and Stability of Trapatt Amplifiers

The Influence of Harmonic Injection on Power, Efficiency and Stability of Trapatt Amplifiers

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