User's Manual

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Note d’étude / Technical document : URD1– OTL 5665.1– 002 / 70 884 Edition 03
Document Sagem Communications Reproduction et divulgation interdites
Sagem Communications document. Reproduction and disclosure prohibited
Figure 21: Forbidden area for via and lines
6.4 MECHANICAL SURROUNDING
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Avoid any metallic part around the antenna area
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Keep jacks, FPCs and battery contact far from antenna area (FLEX)
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FPC has to be a shielded one
6.5 OTHER RECOMMENDATIONS – TESTS FOR PRODUCTION/DESIGN
Sagem Communications guarantees the RF performances in conductive mode but strongly recommends
making RF measurements in an anechoic chamber in radiated mode (tests conditions for FTA): the radiated
performances strongly depend on radio integration (layout, antenna, matching circuit, ground area…..)
7. AUDIO INTEGRATION
Audio mandatory tests for FTA are in handset mode only so a particular care must be brought to the design of
audio (mechanical integration, gasket, electronic) in this mode.
The audio norms which describe the audio tests are 3GPP TS 26.131 & 3GPP TS 26.132.
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Please note that acoustic competences are mandatory to get accurate audio performance on customer’s
product.
7.1 MECHANICAL INTEGRATION AND ACOUSTICS
Particular care to Handset Mode: FTA