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High frequency PCB

High frequency PCB

High frequency PCB

High frequency PCB

  • Teflon Radar PCB
    Teflon Radar PCB

    Product Name: 77GHz Millimeter wave radar PCB

    Material: Rogers RO3003G2 + Shengyi S1000-2M

    Quality standard: IPCB6012 Class3

    Dielectric constant: 3.00 + / - 0.04

    Layers: 8Layers

    Thickness: 1.4mm

    Copper thickness: base copper 0.5oz, finished copper thickness 1oz

    Surface technology: Silver, Gold or OSP

    Application: Car driverless 77GHz Millimeter wave radar

    Product Details Data Sheet

    At present, iPcb Circuits Co., Ltd. (ipcb) uses Rogers RO3003G2+Shengyi S1000-2 to produce 77GHz Millimeter wave radar PCB in batches.


    RO3003G2 high frequency pcb material

    Rogers RO3003G2 high-frequency, ceramic-filled PTFE(Teflon) laminates are an extension of Rogers's 'industry leading RO3003 solutions. RO3003G2 laminates are based on industry feedback to specially address the next generation needs for mm-wave automotive radar applications.

    RO3003G2 laminate's combination of optimized resin and filler content provides a lower insertion loss, ideal for use in ADAS systems like adaptive cruise control, forward collision warning and active brake or lane change assist.


    RO3003G2 high frequency pcb material Features

    Dielectric constant of 3.00 at 10 GHz and 3.07 at 77 GHz

    Very Low Profile (VLP) ED copper

    Homogeneous construction incorporating VLP ED copper and reduced dielectric porosity

    Enhanced Filler System

    Benefits

    Best in class performance for insertion loss

    Minimize dielectric constant variation in finished PCB

    Enable trend toward more small diameter vias

    Global manufacturing foot print

    RO3003G2 Radar

    Advantages of 77GHz band in automotive and industrial applications

    Advantage 1: high range resolution and ranging accuracy

    Compared with the ISM band with only 200MHz bandwidth in 24GHz band, the SRR band in 77GHz band can provide up to 4GHz scanning bandwidth, significantly improving the range resolution and accuracy. Among them, range resolution represents the ability of radar sensor to separate two adjacent objects, and range accuracy represents the accuracy of measuring a single target.

    Because the range resolution and accuracy are inversely proportional to the scanning bandwidth, the performance of 77GHz radar sensor is better than that of 24GHz radar, which is 20 times higher than that of 24GHz radar. In fact, the range resolution of 77GHz radar is 4cm (the resolution of 24GHz radar is 75cm).

    High range resolution can better separate objects (such as people standing near cars) and provide dense points to detect objects, so as to improve the environment modeling and object classification, which is very important for the development of advanced driving assistance algorithm and automatic driving function.

    In addition, the higher the resolution, the smaller the minimum distance of sensor recognition. Therefore, 77-81ghz radar has a significant advantage in applications requiring high accuracy, such as parking aid.

    The 77GHz broadband has high resolution, which can be used for industrial level sensor, so that the sensor can "measure to the last drop" of liquid level - to minimize the dead zone at the bottom of the water tank, as shown in the figure. Moreover, because the high resolution can improve the minimum measurement distance, when the water tank is full, the sensor can measure the liquid level at the top of the water tank.


    Advantage 2: high speed resolution and precision

    The speed resolution and accuracy are inversely proportional to the radio frequency (RF) frequency. Therefore, the higher the frequency, the better the resolution and accuracy. Compared with the 24 GHz sensor, the 77 GHz sensor can reduce the power consumption.

    For parking aid applications, speed resolution and accuracy are crucial, because it is necessary to operate the vehicle accurately at low speed when parking. Fig. 4 shows a representative FFT range velocity image of a point object at 1 m and depicts an improved resolution of a two-dimensional image obtained using 77 GHz.

    In addition, recent studies have further improved pedestrian detection and advanced object classification algorithms by using radars with higher resolution and micro Doppler signals. The improvement of speed measurement accuracy is conducive to industrial applications, but also to improve the current situation of traffic detection under the background of automatic vehicles.


    Advantage 3: smaller size

    One of the main advantages of higher RF frequency is that the sensor size can be smaller. For the same antenna field of view and gain, the size of 77GHz antenna array can be reduced about three times in X and Y dimensions. This size reduction is very useful in the car, mainly reflected in the application around the car (including the door and trunk that need to install the proximity sensor) and in the car.

    In the aspect of industrial fluid horizontal line sensing, higher RF frequency can provide narrower beam for antennas and sensors of the same size. The narrow beam can reduce the unnecessary reflection from the side of the tank and the interference of other obstacles in the tank, so as to obtain more accurate measurement results. In addition, for the same beam width, the higher the RF frequency, the smaller the size of the sensor and the easier to install.


    Millimeter wave radar is the core technology of ADAS to improve safety and convenience. Target applications of millimeter wave radar:

    Reversing automatic emergency braking (R-AEB)

    Front/rear cross traffic assist function (FCTA/RCTA)

    Parking Assist (PA)

    Blind Spot Detection (BSD)

    Cascade Imaging Radar (IMR)

    Automatic emergency braking system (AEB)

    Adaptive Cruise Control (ACC)

    Lane Change Assist (LCA)

    Radar 360° perception


    What is the difference between 77G and 24G millimeter wave radar?

    The two frequency bands of 77G and 24G millimeter wave radars are not much different in signal processing principles, but because the frequency determines the basic properties of electromagnetic waves, 77GHz millimeter waves and 24GHz millimeter waves are suitable for different application tasks. One of the main disadvantages of radar is that the angular resolution is usually relatively low. Vehicle-mounted millimeter-wave radars generally use phased array antennas for angle measurement. The antenna design is directly related to the signal wavelength. On the one hand, in order to avoid the influence of grating lobes and electromagnetic coupling, the selection of the distance between the receiving antenna array elements will be based on half the wavelength. On the other hand, a shorter wavelength means that a smaller transmitting antenna can be used. Therefore, based on the above reasons, in the same volume, the 77GHz millimeter-wave radar can design more transceiver elements and form a larger aperture than the 24GHz millimeter-wave radar, thereby obtaining a narrower beam and improving the angle measurement accuracy. This is very important for radar remote detection. This is because the arc length corresponding to the angular resolution unit in the polar coordinate system increases with the increase of the distance. For example, the arc length at 200 meters with a resolution of 5 degrees is about At 17 meters, it is wider than the average road, and the target cannot be distinguished in the horizontal direction. Therefore, the current 77GHz millimeter-wave radar is the mainstream solution for the forward long-range detection of cars, while the 24GHz millimeter-wave radar is mainly used for short-range detection of the rear and side of the car. The short-range 77G millimeter-wave radar is less used because the 24G millimeter-wave radar The technology is relatively mature, and the higher frequency hardware design will be more difficult and costly. According to different application backgrounds, different millimeter wave radar parameters can be designed. For example, the forward long-range can use narrow-band signals to reduce interference, while the short-range The bandwidth can be increased to improve the range resolution.


    For pcb technical problems, ipcb knowledgeable support team is here to help you with every step. You can also request pcb quotation here. Please contact E-mail sales@ipcb.com

    We will respond very quickly.

    Product Name: 77GHz Millimeter wave radar PCB

    Material: Rogers RO3003G2 + Shengyi S1000-2M

    Quality standard: IPCB6012 Class3

    Dielectric constant: 3.00 + / - 0.04

    Layers: 8Layers

    Thickness: 1.4mm

    Copper thickness: base copper 0.5oz, finished copper thickness 1oz

    Surface technology: Silver, Gold or OSP

    Application: Car driverless 77GHz Millimeter wave radar


    For pcb technical problems, ipcb knowledgeable support team is here to help you with every step. You can also request pcb quotation here. Please contact E-mail sales@ipcb.com

    We will respond very quickly.