Antenna's size and Tags

Hi folks,

How to select an antenna to match the requirement of passive/active tag, LH/HF/UHF/Microwave range?
What are the things to be considered to select an antenna?
Please suggest some good articles/materials for the same.

-shaikss

Hello,

You may try the RFID handbook, Fundamental and Applications in contactless Smart Cards and Identification (Wiley). It covers the basics of near field and far field RFID, inclusive link budget calculations, and of course the antennas.