User's Manual

User Manual
Version 01.01
2011-12-22
Radio modules deRFarm7
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
01237 Dresden / Germany
Tel.: +49 351 – 31 85 00
Fax: +49 351 – 3 18 50 10
[e-mail]
www.dresden-elektronik.de
Page 30 of 38
10. RF components
10.1. deRFarm7-15A02 / 15C02
The U.FL coaxial connector contains a filter network:
 L2 = 10nH (0402)
 C1 = 4.7pF (0402)
 C3 = 4.7pF (0402)
Figure 27: Filter network of deRFarm7-15A02
10.2. deRFarm7-25A00 / 25C00
The chip antenna on the deRFarm7-25A00 is matched with:
 L1 = 1.0nH (0402)
 L2 = 2.2nH (0402)
Figure 28: Matching network of deRFarm7-25A00