A multi-mode multi-band reconfigurable power amplifier for low band GSM/UMTS handset applications
| Autor: | Youngwoo Kwon, Jung-Hyun Kim, Unha Kim, Sungyoon Kang |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Engineering
business.industry Amplifier ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Mode (statistics) Handset law.invention Multi band GSM Power difference law Electronic engineering ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS Enhanced Data Rates for GSM Evolution business UMTS frequency bands |
| Zdroj: | 2013 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications. |
| Popis: | A practical reconfigurable structure for multi-mode multi-band (MMMB) reconfigurable power amplifier (PA) is proposed for GSM/UMTS handset applications. To overcome not only the frequency difference (MB) but also the power difference (MM) between GSM and UMTS standards, the proposed structure reconfigures the PA core as well as the output matching network. To verify the performance of the proposed structure, a MMMB PA is developed for GSM/EDGE/UMTS low-frequency bands applications. The fabricated MMMB PA showed good RF performance for UMTS as well as GSM/EDGE applications. Efficiency degradation was limited to less than 2% compared to the single-mode single-band PA. Measured RF performance validates the usefulness of the proposed structure for MMMB applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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