[Amps] mounting (UHF) RF powermodules

[pc5m, Carel]

Hi, 
 
Anyone could point me to some resources describing the best way to mount RF
powermodules for UHF use (like the Toshiba RA13H4047).  ?
Did googled around a bit (found a Motorola patent, 5546275) and studied the
datasheet, but still not satisfied how to establish both good thermal and RF
(UHF!) connections (in an easy way....) when using these modules on a flat
surfaced heathsink.
 
Thanks in advance,
 
Carel, pc5m
 
p.s. sorry for the bandwidth if this quest is not appropiate in between the
multi-KW one's  :-)