With the prolific deployment of Wireless Local Area Network (WLAN) radio cards in the computer industry, many companies with only limited RF capability are now attempting volume production of these devices. The major WLAN chip suppliers generally supply strong technical support and license ready-to-go Reference Radio designs to their customers to ensure minimum time-to-market. This paper discusses common WLAN transmitter and receiver problems and their solutions. Orderly diagnostic procedures are presented to rapidly zero in on the source of trouble. Tried and proven mitigation techniques are discussed. The paper concentrates on various aspects of maintaining tight tolerance striplines in production printed circuit assemblies.

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