cultclassic
Newbie level 1
Hello,
I bought an antenna for use with 900MHz RFID.
It's a patch antenna.
Compared to other 900MHz antennas I tried,
this is the smallest. Size is cruicial to my application.
It appears to be made of some ceramic material, dense, almost
feels like marble. (It's conducts heat well, and is cold to touch)
There is metal (looks like aluminum) deposited of two sides,
which forms the two plates of the patch antenna.
I have attached a picture here.
Have anyone here seen antennas similar to this? I'd like to know
what kinda ceramic is used. My search turned up something called
LTCC. But LTCC, as I understand, is used for embedding components
in layers. Do you think this is LTCC? Does this antenna has stuff
embedded inside the ceramic? Or is the ceramic merely acting
as a dielectric, to reduce the size of the antenna?
I'd also like to know how the metal gets coated on it.
Could anyone point me in the right direction?
Thanks for your time.
I bought an antenna for use with 900MHz RFID.
It's a patch antenna.
Compared to other 900MHz antennas I tried,
this is the smallest. Size is cruicial to my application.
It appears to be made of some ceramic material, dense, almost
feels like marble. (It's conducts heat well, and is cold to touch)
There is metal (looks like aluminum) deposited of two sides,
which forms the two plates of the patch antenna.
I have attached a picture here.
Have anyone here seen antennas similar to this? I'd like to know
what kinda ceramic is used. My search turned up something called
LTCC. But LTCC, as I understand, is used for embedding components
in layers. Do you think this is LTCC? Does this antenna has stuff
embedded inside the ceramic? Or is the ceramic merely acting
as a dielectric, to reduce the size of the antenna?
I'd also like to know how the metal gets coated on it.
Could anyone point me in the right direction?
Thanks for your time.