With the development of intelligent driving technology,Millimeter-wave radarAs the core sensor inCarsThe field plays an important role. It has the advantages of high resolution, strong anti-interference performance and small size, and is widely usedAutonomous drivingAssistance Systems (ADAS). With the continuous popularization of intelligent driving technology,Millimeter-wave radarThe market size is also gradually growing. According to the senior engineerSmart carsData**, 2022 GlobalMillimeter-wave radarSales will reach 179530,000, a year-on-year increase of 312%。Despite the currentMillimeter-wave radarInAutomotive marketofPermeabilityIt is relatively low, but with the popularity of L1 and L2 driver assistance functions, the demand for sensors will continue to increase. It is estimated that by 2025, the average number of L1 and L2 intelligent driving systems will be requiredMillimeter-wave radarThe quantities are 15 and 27, while 5 to 10 are required for L3 and above. This will be:Millimeter-wave radarThe market brings new room for growth. According to **, by 2025, ChinaAutonomous drivingThe market size will be close to 400 billion, with a five-year compound annual growth rate of 1066%。Therefore, it is expected in the next few years,Millimeter-wave radarThe market will usher in more development opportunities.
Millimeter-wave radarAs modernCarsThe key sensors in the field have gone through several stages in the development of the technology. 60s of the 20th century,Millimeter-wave radarThe concept first appeared and was introduced in the 90s of the 20th centuryCarsDistance control system. EarlyMillimeter-wave radarThe 24GHz frequency band is mainly used, and due to the impact of immature technology and foreign technology blockade, domestic manufacturers are relatively weak. It wasn't until 2010 that China began to emergeMillimeter-wave radarmanufacturers, but due to technical limitations, domestic productionMillimeter-wave radarStill dominated at 24GHz.
However, in 2017,Texas Instruments(ti) has launched a highly integrated 77GHzMillimeter-wave radarChips, the radio frequency (RF),Digital Signal Processorsdsp) and a microcontroller unit (MCU) are integratedChipsThis breakthrough significantly reduces manufacturing costs and hardware development difficulties. At present, 77GHz has become the mainstream frequency band, and the 79GHz band has also begun to gain traction. The 77GHz band has a shorter wavelength and stronger penetration, performs better at medium and long range detection, and is smaller. The 79GHz band has lower resolution and more accurate detection, which can make up for 77GHzRadarDeficiencies in close-range detection.
Millimeter-wave radarThe industrial chain mainly includes upstream radio frequency (RF) MMICChips, high frequencypcb, processingChips, as well as downstream machine manufacturers. There are certain technical barriers in each link, and domestic manufacturers are still in a state of catching up.
In radio frequency (RF) mmICChipsAt present, the global market is mainly usedNXPInfineonTexas Instruments（ti）、mobileyeand other overseas companies occupy. The process of domestic manufacturers catching up is relatively slow, and there are mainly at presentCalterah Microelectronics, Yangtze River Storage, etc. These companies have certain technical strength in RF device design, RF integrated circuit design, analog front-end circuit design, etc.
, high frequencypcbYesMillimeter-wave radarAn important part of its manufacturing process and material pairsRadarPerformance has a big impact. Currently, high frequencypcbThe manufacturing technology is mainly mastered by foreign companies, such as Rogers, ISOLA, etc. Some domesticpcbManufacturers are also actively investing in R&D, such as Shenzhen Allwinner Electronics, Jiangsu Hansen, etc.
, processingChipsIt's a core component, rightRadarSignal processing and data processing play a vital role. The R&D of domestic manufacturers in this link is relatively weak, mainly relying on the ** of foreign manufacturers. However, in recent years, some domestic companies have begun to deal with itChipsareas are laid out, such as:Jiufu SemiconductorQilu ElectronicsWait.
In terms of complete machine manufacturing, the current global market is mainly composed of:DelphiWhipple, Helu and Valeoand other foreign companies occupy. Some domestic companies have also begun to get involved in this field, such as:JACBeiqi Shenbao, BYD, etc.
withCarsThe continuous improvement of the level of intelligenceMillimeter-wave radarInAutomotive marketThe application prospect is broad. In the future,Millimeter-wave radarThere will be a trend of development in the following aspects:
First of all,Millimeter-wave radarwill develop to high frequency bands. 77GHz has become the mainstream frequency band and has shown good advantages in terms of performance and cost. However, withCarsAs the demand for higher accuracy increases, the 79GHz band is also starting to gain traction and is expected to be more widely used in the future.
Secondly,Millimeter-wave radarGreater emphasis will be placed on high accuracy and all-round detection capabilities. CurrentMillimeter-wave radarIt is mainly used for distance measurement and velocity measurement, and will gradually develop more application scenarios in the future, such as point cloud image reconstruction, target tracking, and 3D image reconstruction.
Third,Millimeter-wave radarMore attention will be paid to intelligence and interconnection. With the popularization of Internet of Vehicles technology and the construction of 5G network,Millimeter-wave radarIt will be able to better realize the information interaction between vehicles, vehicles and roads, and vehicles and clouds, and realize higher-level intelligent driving functions.
Finally,Millimeter-wave radarMore attention will be paid to reducing the size and cost. withRadarIncreased system integration and improved manufacturing processesMillimeter-wave radarIt will be more compact, making it easier to apply to various parts of the vehicle, such as the sides, rear and roof.
To sum up, with the development of intelligent driving technologyAutomotive marketThe demand has increasedMillimeter-wave radarThe market will usher in more development opportunities. Domestic enterprises should actively strengthen research and development, improve the technical level to meet market demand, and gain a larger share in international competition.