7 Gunn Diode Manufacturers in 2022
This section provides overview, applications, and principles of gunn diodes. Also, please take a look at the list of 7 gunn diode manufacturers and their company rankings.
Table of Contents
What Is a Gunn Diode?
A Gunn diode is a diode used in microwave oscillators and other devices that utilize the Gunn effect.
N-type gallium arsenide (GaAs) is mainly used, and physicist J.B. Gunn discovered that oscillation occurs in the microwave region when a DC electric field is applied to GaAs and exceeds a certain threshold value. This phenomenon is therefore called the Gunn effect.
Gunn diodes have an area of negative resistance, and this effect is used in microwave oscillators. Negative resistance is a characteristic in which the current decreases as the voltage increases.
Uses of Gunn Diodes
The most common use of Gunn diodes is in oscillators in the microwave region using the Gunn effect.
When a Gunn diode is mounted in a cavity or waveguide and a DC voltage is applied, it oscillates with an intrinsic vibration that depends on the crystal's thickness. The structure is relatively simple, but the frequency stability is not as good as other methods, so it is often used for sensors in addition to communications.
Familiar applications include speed guns for baseball and radars for speed enforcement.
Principle of Gunn Diodes
The energy band diagram of GaAs crystals used in Gunn diodes has two conduction bands with different bottom energies and wave numbers when a graph of energy versus wavenumber is drawn.
When voltage is applied, an electric current flows and the electrons responsible for this current are those in the conduction band. Normally, electrons are more abundant in the conduction band with lower energy at the bottom, and as the voltage increases, electrons are also present in the conduction band with higher energy.
When a certain voltage is exceeded, electrons from the lower conduction band are transferred to the higher conduction band, decreasing mobility. This phenomenon causes the current to decrease even when the voltage is increased when a certain voltage is exceeded, resulting in the characteristic of negative resistance.
When the voltage is further increased, the electrons in the conduction band at the lower level are transferred to the conduction band at the higher level, and the current increases again. Therefore, Gunn diodes have negative resistance in certain intermediate transition regions.
List of 7 Gunn Diode Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- India
- United States of America
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Teledyne Lincoln Microwave
Gunn Diodes
-
-
Gunn Diode Manufacturer Ranking
*Including some distributors, etc.Ranking as of January 2023 in United States
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | MicroWave Technology (MWT) | 42.9% |
| 2 | IXYS Integrated Circuits | 28.6% |
| 3 | HOVERLABS | 14.3% |
| 4 | Hybrid Electronics | 14.3% |
Ranking as of January 2023 Globally
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | MicroWave Technology (MWT) | 33.3% |
| 2 | IXYS Integrated Circuits | 33.3% |
| 3 | Hybrid Electronics | 22.2% |
| 4 | HOVERLABS | 11.1% |
Derivation Method
The ranking is calculated based on the click share within the gunn diode page as of January 2023. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
- IXYS Integrated Circuits: 2021 (2 years ago)
- Microchip Technology: 1989 (34 years ago)
- Microsemi: 1986 (37 years ago)
Company with a History
- HOVERLABS: 1963 (60 years ago)
- MicroWave Technology (MWT): 1982 (41 years ago)
- Microsemi: 1986 (37 years ago)
Related Products
Search from All Categories
This is the version of our website addressed to speakers of English in the United States. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.