Gunn vs Impatt vs Trapatt vs Baritt-difference between Gunn diode, Impatt diode, Trapatt diode and Baritt diode types
This page compares Gunn diode vs Impatt diode vs Trapatt diode and Baritt diode and mentions difference between Gunn diode,Impatt diode,Trapatt diode and Baritt diode.
| Specifications | Gunn diode | Impatt diode | Trapatt diode | Baritt diode |
|---|---|---|---|---|
| Bandwidth | 2% of RF center frequency | 1/10th of RF center frequency | - | Narrow |
| Operationg frequency |
1 to 100GHz | 0.5 to 100GHz | 1 to 10GHz | 4 to 8GHz |
| Efficiency | - | 3% in CW, 60% in pulsed mode | 20 to 60% pulsed mode | Low(about 2%) |
| Output power | few watts(continuous wave), 100 to 200Watt(pulsed) |
1 Watt(CW), 400Watt(Pulsed) | Several 100Watt(pulsed) | Low(mWatt) |
| Noise figure | - | High, 30dB | High, 60dB | Less noisy than IMPATT diode(<15dB) |
| Basic semiconductors | GaAs, InP | Si, Ge, GaAs, InP | Si | Si, metal |
| Construction | n+ nn+ GaAs single crystal | n+ pip+ reverse bias p-n junction | p+ nn++ or n+ p p+ reverse bias p-n junction | p-n-p or p-n-i-p, or p-n metal or metal-n-metal forward bias p-n junction |
| Harmonics | - | Less | Strong | Less |
| Ruggedness | Yes | Yes | Yes | Yes |
| Size | Small | Small | Small | Small |
| Application | Oscillator | Amplifier, Oscillator | Oscillator | Local Oscillator |
Also refer Gunn diode basics and applications and Impatt Trapatt Baritt diode basics for more information and features of these diode types.
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