meteor burst packet radio band meterial req

hi guys,
i need some meterial on

meteor burst packet radio band,fees point impedence shoud be approximatly 71ohm at selected resonent frequency.

pls help me
send me any meterial about this
regards
saro

http://www.argreenhouse.com/society/...s98/11_06i.pdf

http://polaris.isc.nipr.ac.jp/~uap/a...17/PUA1710.pdf