Chapter 1060: Early warning aircraft for phased array radar

Ordinary radar beam scanning is realized by the rotation of the radar antenna, which is called mechanical scanning. The phased array radar uses electrical means to control the direction of the radar beam to scan and find the target. This method is called electrical scanning. Its "trick" is to use a "phase shifter" to achieve electromagnetic lobe rotation.
On a circular antenna array with a diameter of tens of meters in a phased array radar, there are thousands of antenna units that can transmit and receive electromagnetic waves. Each antenna unit is equipped with a "phase shifter", and each "shifter" The "phaser" is controlled by an electronic computer.
When the radar is working, the electronic computer controls these "phase shifters" to change the "phase" of electromagnetic waves emitted by each radiator into the air, so that the radar waves can complete the air search mission like a rotating antenna.
According to the different transmitting devices, it is divided into active phased array and passive phased array. Each unit can definitely receive, but it may not be able to transmit.
If it is launched by the magnetron at the back and the phase shifter in front, it is a passive phased array radar. If the unit can launch by itself, it is an active phased array.
Passive phased array radar technology is not complicated. Han's large-scale long-range radar uses this technology, but it can transmit and receive by itself. The processing capability is very high, and there are countless difficulties to overcome.
Qin Guan attaches great importance to this set of technology, because he knows that warships and fighters are inseparable from this technology, so he has also invested a lot of energy.
The relevant technical materials have been given to 114 institutes a long time ago, and at the same time, the country of David has also been brought into industrialization together. The laboratory has already been made, but it is also very difficult to industrialize.
Even this technology was used as a magic weapon by Qin Guan and sold to the Eagle Nation. When it was exchanged for the Kidd-class destroyer to carry the standard missiles above, these technologies also played a big role.
There is a difference between the products of the laboratory and the products of the factory. If the factory cannot meet the requirements of mass production and cannot increase the yield, then it will not be able to achieve mass production.
A radar antenna has thousands of transmitting units. If you only rely on trial production in the laboratory one by one, the cost is absolutely astronomical.
Now, upon hearing Director Ben's words, Qin Guan immediately asked this question.
Director Ben nodded: "Yes, we only broke through last week and controlled the yield rate to more than 50%. It is still relatively large and cannot be used in fighter jets for the time being. However, the shipboard and The equipment on the early warning aircraft has all the conditions, but the superior is afraid that the risk is too great."
Yes, this is the latest technology, and the risk is quite large.
Looking at the development of early warning aircraft, in the first generation, the lid radar on the ground was moved to the sky. The efficiency is the lowest, and it has no down-sight capability, and it is most used on the sea.
Up to now, most of them are the second generation. For example, the most famous E-3 early warning aircraft of the Eagle Country, the big plate is equipped with a flat slot antenna, so the board is the thinnest. Achieved powerful search capabilities.
Now, the processing technology of Han's flat slot radar antenna is fully mature. If this technology is used, the risk is small and the results are fast. It may be available in about five years. This is also the opinion of many experts. .
However, Director Ben knew that if phased array radar was used, it would be more advanced.
Simply put, if the phased array radar is installed, the antenna does not need to be rotated. It is an electronic scanning method and the antenna does not need to be moved. In this way, the impact on the carrier aircraft is minimal. You must know that the current transport ten After all, the test flight has not been completed yet.
Just add a large plate to the transport without rotating, so that the damage to the aerodynamics is minimal.
Secondly, because phased array radar adopts electrical scanning, the ability to search the airspace is greatly increased. The ability to track while scanning is very strong. For key areas, more components are controlled to scan.
At the same time, its failure rate will be very low, even if some components fail, the remaining components can still continue to work.
The benefits are great.
Of course, the biggest benefit is that they are not sure yet, that is, due to the adoption of the leading generation of technology, the scanning range of the early warning aircraft will have a huge breakthrough.
It can be said that the effect can not be doubled, and it can also be one and a half times. If a flat slot radar antenna is used to control a range of 500 kilometers, then a phased array radar can control more than 700 kilometers!
The experts of 114th Institute are all staunch factions of phased array radar, and the superiors tend to use mature technology. Now everyone is expecting someone to come to the end.
What technology is used?
Is that still necessary? Of course it is phased array technology! If Qin Guan is to vote, he must vote for the phased array radar!
Therefore, Qin Guan kept on running, and after completing the task of 6603, he came to 114 again.
It is summer now, and there is a lively scene in Jinling. It used to be the ancient capital of the Six Dynasties, and the banks of the Qinhuai River are where countless talents linger.
Although Qin Guan has been here many times, he has no time to appreciate the beauty here. Although his schedule is very tight, he has never complained.
Because he saw that with his help, the motherland has become stronger day by day, especially now, the motherland is beginning to catch up.
Active phased array radar is one of the essential elements of the fourth-generation aircraft. If the research and development of this project is completed, sufficient technology will be reserved for the fourth-generation aircraft. It is now used in early warning aircraft, which is also the only one.
In later generations, it wasn't until the late 1990s that the Faircon early warning aircraft of the Kingdom of David realized the phased array radar, and the Kingdom of Han had also experienced this shame.
Now, Han has begun to lead the times in this regard.
After 114 has gone through the airborne radar project, it has developed into the largest electronics institute in China. For the processing of the new phased array radar T/R components, a department was established. The head of this department is also Qin Guan’s An acquaintance, Zhang Gong who is 40 years old.
This is a female comrade. Her expertise is the technology of radar high-frequency components and the technology of mechanical fire control radar flat-panel antenna.
In the past few years, she innovated the clamping method of combining high-precision vacuum adsorption and magnetic attraction to solve the clamping problem of high-precision, large-area aluminum thin-walled parts; using new technologies such as CNC machining and chemical milling to remove cutting burrs, It ensures the high size and position accuracy of thousands of crack grooves and waveguide cavities; the use of the pestle joint assembly process ensures high-precision assembly quality, and lays the foundation for ensuring the quality of brazing seams and controlling welding deformation.
The processing of the flat-slot radar antenna is inseparable from her help. Now, she has devoted herself to the processing technology of the phased array radar antenna.
"Mr Qin, you are welcome to inspect." Zhang Gong was very happy with Qin Guan's arrival. She remembered that she had gone to the northern heavy truck factory for help. At that time, thanks to Mr. Qin's assistance, she completed the development of the previous generation radar. At last, we have finally started the research and development of phased array radar, and we must also thank President Qin.
Mr. Zhang picked up a small sheet and said to Qin Guan, "Mr. Qin, this is a T/R component produced in our factory."
Qin Guan was holding this sheet, and it was really impossible to combine it with the phased array radar antenna in his head. Qin Guan was actually not professional. In his mind, he thought it was the same as the large flat panel antenna seen in the magazine. How is such a small flake?