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Building RF transmitters with step-by-step measurements

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By Boris Adlung, Applications Engineer, Rigol Technologies Europe

Wireless communication relies on RF transmitters. A typical mobile phone contains several of RF transmitters: for mobile communication (audio, SMS, broadband), Wi-Fi, NFC and Bluetooth, among others.

Being an important part of the communications system, RF transmitters must provide stable and good communication, so choosing the right components at the design stage is of crucial importance. For example, when selecting a baseband amplifier, it should be with a large, stable, linear range, covering the required bandwidth without spurious signals, and considering internal interferences from the transmitter’s individual components as well as electromagnetic compatibility (EMC) with the environment around it.

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