MICRONIX

Radio wave transmission test of automotive heat-reflecting glass

Since the antenna of an ETC/DSRC OBE is usually attached in the car, the windshield needs to transmit a radio wave for communication. Therefore, when developing special automotive glass, such as heat-reflecting glass, you have to check whether a radio wave transmits.

[Application]

Since the antenna of an ETC/DSRC OBE is usually attached in the car, the windshield needs to transmit a radio wave for communication.

Therefore, when developing special automotive glass, such as heat-reflecting glass, you have to check whether a radio wave transmits.

Figure:The windshield needs to transmit a radio wave.

[Solution]

  1. DSRC OBE tester ME9100 and DSRC communication unit ME9115CN are faced 1m apart. The glass to measure is arranged between them.
  2. Radio wave is transmitted from DSRC OBE tester ME9100. (Frequency : approx. 5.8GHz)
  3. Electric field strength is measured with DSRC communication unit ME9115CN. (Receiving range : -35 to -80dBmeirp).
  4. Figure:Heat-reflecting glass
  5. By comparing the data with that of the reference glass used without problems ETC/DSRC communication, check whether the radio wave transmitted.
  6. Measured electric field strength data can be downloaded to a PC by connecting the USB cable.

[System configuration]

DSRC OBE tester ME9100 x 1
DSRC communication unit ME9115CN (PDF *Japanese text only) x 1

*MICRONIX Corporation reserves the right to make changes in design, specification and other information without prior notice.

[Products introduction]

2013/12

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