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TOLL ROAD RFID applications - what type of antenna is used?

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aadee

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Re: toll road RFID antenna

I want to know what type of antenna is used in TOLL ROAD RFID applications working in this frequency range: 2350-2450MHz...

also if anyone can provide me with the specifications of this prticular antenna,like length and width of the patch, length ,width and thickness of substrate and dielectric constant value...

Also I may need a simulated antenna file on HFSS..

thanx

Added after 6 minutes:

kindly reply with ur suggestions..I need them really badly...thanks
 

flatulent

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Re: toll road RFID antenna

They are usually a phased array of patches. Many such antennas today have the patches fed through slots excited by a trace extending beyond the slot. This is a multilayer board, but it separates the transmission line layer from the radiating layer so both can be independently optimized.
 

aadee

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Re: toll road RFID antenna

can i have the dimensions of this whole thing??
 

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