testing & test equipment
O n t h e R a d i at i o n P at t e r n s o f C o m m o n EMC A n t e n n a s
Figure 11. E plane patterns. Notice that the low dynamic range at 30 MHz causes a poor definition of the null.
Figure 14. H plane pattern from 80 MHz to 800 MHz for an LPDA antenna.
Figure 15. E plane pattern from 1 to 2 GHz for an LPDA antenna.
Figure 12. H plane patterns for a biconical antenna.
Figure 16. H plane pattern 1 to 2 GHz for an LPDA antenna.
Figure 13. E plane pattern from 80 MHz to 800 MHz for an LPDA antenna.
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interference technology
emc Directory & design guide 2011