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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lei Zhao Watts, M. Noori, B. Jones, J. |
| Copyright Year | 2015 |
| Description | Author affiliation: Apple Inc., Cupertino, CA, USA (Noori, B.) || RF Group, Freescale Semicond., Inc., Tempe, AZ, USA (Lei Zhao; Watts, M.; Jones, J.) |
| Abstract | This novel design technique was developed for the input pre-match circuit of discrete base station power amplifiers utilizing multi-section low pass, band pass and high pass topologies by carefully selecting the pole locations to achieve state of the art performance for broadband operation over 20% fractional bandwidth. The techniques have been applied to a 28 V, 230 W LDMOS PA to cover the RF bandwidth from 1.8 GHz to 2.2 GHz with equivalent RF performance for power, gain and efficiency as the narrowband designs while maintaining user-friendly input and load impedances as well as minimal linear phase distortion. To our knowledge, this is the first 28 V LDMOS high power amplifier capable of covering the 20% fractional bandwidth at 2 GHz reported to date. |
| Starting Page | 227 |
| Ending Page | 230 |
| File Size | 551783 |
| Page Count | 4 |
| File Format | |
| ISBN | 9782874870392 |
| DOI | 10.1109/EuMC.2015.7345741 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-09-07 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | EuMA |
| Subject Keyword | Power amplifiers Broadband amplifiers Radio frequency Impedance matching Bandwidth Band-pass filters input matching network broadband LDMOS power amplifiers base station integrated passive device |
| Content Type | Text |
| Resource Type | Article |
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