1904, British engineers successfully developed the world's first vacuum diode.
1906, the first vacuum transistor that can amplify radio signals came out.
The first world war of1914 ~1918 started radio communication and developed simple radio communication interference.
1920 found that the ionosphere reflected radio short waves, which greatly increased the radio communication distance and intensified the radio communication countermeasures.
1933, an experimental radar was developed in Germany.
1936, Britain made a radar device. Since then, electronic countermeasures have increased the content of radar countermeasures.
1940, the "resonant cavity magnetron" was successfully developed in Britain. Since then, microwave technology has been developed. Since then, various gun-aiming radars, warning radars, airborne radars and ship-borne radars have appeared, as well as navigation, remote control and telemetry equipment, and various radar countermeasures have appeared.
From 65438 to 0947, the United States successfully developed the first point contact germanium transistor, which made a new breakthrough in electronic technology. In 1980s, transistors were widely used in complex weapons and equipment, ground-to-air missiles and ground-to-air missiles began to be equipped, and electronic countermeasures equipment also increased.
In 1960s, a weapon system specially used for electronic countermeasures appeared.
In recent 20 years, due to the rapid rise of large-scale integrated circuits and microcomputers, electronic equipment used in the military is developing towards miniaturization and excellent performance.
In many local wars, especially in the Gulf War of 199 1, almost every combat unit in the United States and other countries is equipped with electronic equipment and countermeasures.
Now, a new kind of arms-electronic warfare arms has appeared, and many countries have set up special electronic warfare units. There are 25,000 US Army EW troops, accounting for 3.3% of the total number, 248 Air Force EW aircraft, accounting for 6.9% of the total number of combat aircraft, and 20 Navy EW aircraft/KLOC-0, accounting for 4.8% of the total number of combat aircraft.
Electronic countermeasures have gone through several stages, from radio communication countermeasures to radar countermeasures, and then to all-round electronic equipment countermeasures.
It is predicted that with the rise of electronic warfare arms, on the one hand, it will be more closely integrated with the battles of land, sea, air and sky to serve the multidimensional three-dimensional war; On the other hand, there may be a separate electronic warfare stage, or an independent electronic strategy stage, and there may even be a new type of war that depends solely on electronic warfare to decide the outcome.