what type of antenna did you recomended for me.
what type of antenna did you recomended for me.
(OP)
I want to build a antenna of this condition. what type of antenna did you recomended
*much metal in the environment
*will sit on vehicle for hight speed max 200km/h
*dual band 868Mhz( Rfid),2,25GHz
*smal max (w*L*H) 5cm*10cm*2cm
*range max 15-20m
*circular polarized
*much metal in the environment
*will sit on vehicle for hight speed max 200km/h
*dual band 868Mhz( Rfid),2,25GHz
*smal max (w*L*H) 5cm*10cm*2cm
*range max 15-20m
*circular polarized





RE: what type of antenna did you recomended for me.
RE: what type of antenna did you recomended for me.
RE: what type of antenna did you recomended for me.
RE: what type of antenna did you recomended for me.
Have you looked at ZigBee Pro as a possible alternative? Outdoor range with even rather puny antennas can be in excess of 100 m. Additionally, the systems are already configured for low-latency wake-up (~30ms).
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RE: what type of antenna did you recomended for me.
RE: what type of antenna did you recomended for me.
Expect the patch antenna size to be relatively small 8"x3"x(0.5"thick) with zero dBic peak gain. You position the probe so that you'd get H pole at the low frequency and V pole at the high frequency.
RE: what type of antenna did you recomended for me.
Path antenna, annular ring antenna, etc.
www.MaguffinMicrowave.com
Maguffin Microwave wireless design consulting
RE: what type of antenna did you recomended for me.
www.MaguffinMicrowave.com
Maguffin Microwave wireless design consulting