User Manual
ZE51/61-2.4 RF Module User Guide
1VV0300868 Rev.4 – 31/03/2011
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 5 of 50
VI.3. RF LAYOUT CONSIDERATIONS ...................................................................................................................................................................... 36
VI.4. ANTENNA CONNECTION ON PRINTED CIRCUIT BOARDS ............................................................................................................................. 37
VI.5. ZE51/61-2.4 INTERFACING : ........................................................................................................................................................................ 38
CHAPTER VII. ANTENNA CONSIDERATIONS....................................................................................... 41
VII.1. ANTENNA RECOMMENDATIONS ................................................................................................................................................................... 41
VII.2. ANTENNA MATCHING .................................................................................................................................................................................. 42
VII.3. ANTENNA TYPES ........................................................................................................................................................................................ 43
VII.4. EXTERNAL ANTENNA .................................................................................................................................................................................. 43
VII.5. EMBEDDABLE ANTENNAS ............................................................................................................................................................................ 45
CHAPTER VIII. ANNEXES ....................................................................................................................... 47
VIII.1. EXAMPLES OF PROPAGATION ATTENUATION ............................................................................................................................................... 47