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- W1034736657 abstract "This chapter discusses that when the pn junction diode is reverse-biased, then, current does not flow. However, when the reverse voltage exceeds a certain value, the junction breaks down and current flows with only slight increase of voltage. This breakdown is caused by avalanche multiplication of electrons and holes in the space-charge region of the junction. The pn junction in the avalanche breakdown condition exhibits negative resistance characteristics in the microwave frequency range. This negative resistance is exploited to generate microwave power and amplify microwave signals. As the negative resistance is based upon avalanche multiplication and the transit-time effect of carriers, the device has been called the “Impact Avalanche Transit-Time” (IMPATT) diode. IMPATT oscillators have produced continuous output powers ranging from 5 W at 12 GHz with an efficiency of 9 % to 37 mW at 106 GHz with an efficiency of 1.6 %. The chapter discusses some design considerations and fabrication techniques of laboratory models. Finally, the observed characteristics of experimental units are presented." @default.
- W1034736657 created "2016-06-24" @default.
- W1034736657 creator A5021264630 @default.
- W1034736657 date "1971-01-01" @default.
- W1034736657 modified "2023-09-27" @default.
- W1034736657 title "Chapter 7 Impatt Diodes" @default.
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- W1034736657 doi "https://doi.org/10.1016/s0080-8784(08)62939-7" @default.
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