[HELP]Can anyone give me some paper or links about TV antenn

Can anyone give me some paper or links about TV receive antennas which are used in automobiles? I have found these materials for a long time, but have no progress. If any hints, pls pls tell me, many many thanks! email/msn: edmund_zheng@hotmail.com
Kind regards!
Edmund

what type of tv vhf/uhf or satellite? i presume satellite.

thank you for you reply. oh, i am sorry to forget, however, they are UHF. could you have something about that antenna?