The structure and characteristics of Schottky diode make it suitable for high-frequency rectification in low-voltage and large current output fields, detection and mixing at very high frequencies (such as X-band, C-band, S-band and Ku band), and clamping in high-speed logic circuits. Schottky diodes are often used in ICs. Integrated circuits such as Schottky diodes have become the mainstream of TTL circuits and are widely used in high-speed computers.
In addition to the characteristic parameters of the common PN junction diode, the electrical parameters of the Schottky diode used for detection and mixing also include the intermediate frequency impedance (refers to the impedance of the Schottky diode when the rated local oscillation power is applied to the specified intermediate frequency, generally between 200 Ω and 600 Ω), the voltage standing wave ratio (generally ≤ 2), and the noise figure.