A Small-Signal and Noise Equivalent Circuit for IMPATT Diodes (Short Papers)
Madhu Gupta · IEEE Transactions on Microwave Theory and Techniques · 1973
A frequency-independent small-signal equivalent circuit for an IMPATT diode is proposed. It incorporates five circuit elements, including a negative resistance, and is valid over an octave range of frequency. With the addition of two white noise sources it also serves as a noise equivalent circuit.