At the beginning, radar designers took the road of increasing the aperture of the radar and increasing the power of the radar to improve the performance of the radar, and the radar of the MiG-25 fighter is a perverted product under this guiding ideology.

As for the results, we have all seen that although this radar sounds exaggerated, in fact, most of the power is dissipated in vain as heat.

Relying on advanced industrial technology, the United States took the lead in bringing fighters into the era of flat slot array antennas, starting from the original F-14 fighters, and the powerful AWG-9 radar gave the Tomcat fighters very strong performance.

The inverted Cassegrain antenna is now used throughout Western Europe, which offers improved performance over traditional parabolic antennas, but it is simply not comparable to flat panel slot radar antennas.

Needless to say, airborne radar requires a high gain narrow beam with low side lobes, and a parabolic antenna cannot perfectly achieve its goal.

The flat slot radar antenna can better achieve this goal.

A planar array antenna is a typical array antenna. From tens to hundreds, or even thousands of small unit antennas, they are evenly arranged on the array surface according to certain rules, spacing, etc. A single unit antenna may have a very wide beam and a very low gain, but relying on the many unit antennas on the antenna array, working together, a high gain, narrow beam, and even ultra-low sidelobes can be achieved.

Of course, there are many flat panel antennas, and for fighters, they are mainly with gaps, that is, in the common microwave transmission structure, the waveguide surface is cracked, so that the small gap becomes an antenna and radiates electromagnetic waves. It has the advantage of being suitable for matching with the feed structure, and the power capacity is large. The airborne waveguide slot looks like it is open on a flat plate, so it is called a flat plate slot antenna.

In fact, there is also an open waveguide for the panel antenna, which also uses the waveguide structure, but instead of slotting and slitting, it directly uses the waveguide mouth surface to radiate electromagnetic waves. Because this open waveguide form has a slightly larger profile and is too heavy, it is more common in land-based or shipborne radars, and airborne radars are less likely to use this form.

It's very simple to say, but it's quite complicated to process, because the small gaps must be precision machining, and now, even Western Europe has not conquered this technology, let alone the Soviet Union, the Soviet Union has been disintegrating, and it has not overcome the processing of flat slit radar antennas, so it is simply bypassed directly and engaged in phased array radar.

It was only in the late 80s that France conquered this processing technology and used it in their new generation of fighters, and now, only the third-generation aircraft of the United States have fully popularized this radar technology, and the advanced nature of the United States can be seen.

By the nineties, when Western Europe realized the mass production of flat slot radar antennas, the attention of the Americans had long since turned to active electrically scanned array radars, which were always one era ahead.

And now, no one expected that they would accidentally see this radar here.

In fact, the pulse Doppler radar is not necessarily a flat one, the Su-27 introduced in China in later generations, that is, the pulse Doppler radar, which was later upgraded and also has the ability to synthesize aperture, but this kind of radar has always used the inverted antenna, until the domestic radar is installed, and the use of flat plate slot radar has been realized.

It was a flat plate, and the openings on it were so clear, and in front of the flat plate, there was a device similar to the Yagi antenna, and everyone was stunned, especially those engineers who were already involved in avionics, and it was more like they were fascinated.

Israel, too, stepped into the array of flat slot radar so early!

In fact, if you think about it, it is not difficult to understand that the Israeli army is the trumpet American army, and the American army can have what they have, and although the United States will not spread this kind of radar to Western Europe, it will not prohibit Israel.

Over the years, Israel has won one war after another, and they know very well that future air warfare will depend even more on the development of electronic technology, and of course they will develop the world's most advanced avionics.

This kind of radar, with its efficient terrain mapping capabilities, is indispensable for an attack aircraft.

Of course, it is not enough to have only one radar antenna, the entire pulse Doppler radar, its structure, compared with the previous single-pulse radar, is completely new, each module of its digital structure, how to combine between modules, etc., Han Guo is not clear at present.

It took a long time for everyone to finally recover from this radar antenna.

The personnel in the base are not surprised, of course they are also very proud, this is Israel's highest electronic technology, of course, their technology is also constantly developing, now, this radar has been put into practical use, installed on their Cub fighter, however, the latest EL / M-2035 radar, has begun to be in full swing development, this radar uses numberable signal processors, distributed data processors, traveling wave tubes and other new technologies, comprehensively improve the performance of air and ground detection, For example, in the air-to-ground mode, ranging while searching, tracking while searching, etc., and in the air-to-ground mode, real beam mapping, screen freezing and expansion are added. Doppler beam sharpening, ground moving target designation, and other modes.

By the time this radar is developed, it will already be on par with the most advanced level of the United States, and it will completely stand on the first echelon of the world's airborne radar.

Qin Feng is also looking at it, compared to the radar of the Mirage 2000, of course Qin Feng appreciates this radar more, if this kind of radar can be installed on his own fighters, how good it would be!

"Guys, let's take a look at how our Snake-3 missiles are mounted." At this moment, Ike finally reminded everyone, you are here to see the missile, not to see anything else, if you want to introduce our radar system, this is not easy, because this will be strictly supervised by the United States, this is not like the Snake-3 missile.

"It's a slide launcher?" Qin Feng looked at the slide rail on it and couldn't help but ask again.

To put it simply, the slide rail type is a hot launch, and the projectile type is a cold launch.

When the slide rail is launched, the missile is ignited and launched directly on the pylon guide rail, the launch speed is fast, the minimum allowable launch distance is small, and the carrier aircraft can also be launched when maneuvering, so the general combat missile is launched with the guide rail, and the disadvantage is that the tail flame of the missile has an impact on the carrier aircraft.

The projectile type is to throw the missile down first, and then ignite, so that the tail flame has little impact on the carrier aircraft, but due to the process of ignition after the ejection is discharged, the launch reaction speed is slow; In order to avoid hitting the carrier aircraft, the carrier aircraft must be in a stable state during launch, so only radar-guided medium- and long-range missiles and large surface-to-ship attack missiles will use this launch method.

On the other hand, our own existing Thunderbolt-2 missiles are projectile.

The Monster Snake-3 has a large mass, and if it is launched in this way, can the small body of its own J-7 stand it?