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Control Loop Design for GSM Mobile Phone Applications

Overview This paper describes the GSM transmitter system with a description of gain control closed loop theory and practical implementation of power control circuitry for a mobile phone transmitter. Loop type, gain, bandwidth and stability have been discussed linked with a number of specific mobile radio design considerations. The proposed control loop design has been implemented with excellent results using Agilent E-pHEMT power amplifier ACPM-7891. Output power is controlled in 2 dB steps across the required range and power level variations under extreme conditions are well within specified tolerances.

Further White Paper Details
Publisher	Agilent Technologies	File Format	PDF
Date Published	October 2003	Downloads	1
Format	White Papers
Topics	N/A

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