Magnetic RFID reader antenna

Status
Not open for further replies.

biff44

Advanced Member level 6
Joined
Dec 24, 2004
Messages
5,047
Helped
1,376
Reputation
2,748
Reaction score
1,056
Trophy points
1,393
Location
New England, USA
Activity points
37,908
magnetic rfid

Anyone have any design insight into a magnetic field coild the operates at UHF frequency, maybe 18 by 18 inches in size. 2 watts power handling, 5% bandwidth. How do you go about doing it?
 

I am trying to solve the same problem.
You can get the bandwidth by making a coil and deQ the coil with a resistor.
Lamda of RFID UHF is 33cm (13inches). That means it is very difficult to make a large magnetic antenna.
Maybe an array of small antennas?
[/quote]
 

Status
Not open for further replies.

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…