4G handsets pose interface challenges for broadband

It is difficult to achieve flexible, high-efficiency, broadband PA designs by means of RF-only efficiency-enhancement techniques, such as Doherty. Building Doherty solutions would require a large number of variants to cover all the different frequencies, powers and PAPR values, as these designs have...

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Bibliographic Details
Published in:Electronics Weekly 2008-04 (2331), p.24
Main Author: Haynes, Tim
Format: Article
Language:English
Subjects:
Broadband
Cellular telephones
Design engineering
Efficiency
Interfaces
Radio frequency
Online Access:Get full text
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Summary:It is difficult to achieve flexible, high-efficiency, broadband PA designs by means of RF-only efficiency-enhancement techniques, such as Doherty. Building Doherty solutions would require a large number of variants to cover all the different frequencies, powers and PAPR values, as these designs have inherently narrow bandwidth.
ISSN:0013-5224