Title | ||
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Co-Design of Matching Sub-Networks to Realize Broadband Symmetrical Doherty With Configurable Back-Off Region |
Abstract | ||
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In this brief, a technique using the co-design of three matching sub-networks is proposed to solve the contradiction between bandwidth and extended the back-off region of symmetrical Doherty power amplifier (DPA). The phase-shifting solution space of DPA output matching networks is calculated, and its relationship with the input impedance of the post-matching network is analyzed with and without the frequency variable. Configurable back-off region and adjustable operating center frequency can also be realized in the design by using the proposed method. The design flow is given, and then a detailed example under 9-dB back-off region is presented. To verify the proposed theory, a DPA is designed and fabricated across 1.9-2.4 GHz. The experimental results show drain efficiencies of 44.2-49.7% at 8.5-9 dB output power back-off levels across 1.9-2.4 GHz. The fabricated DPA achieves output powers of 44.1-44.8 dBm. |
Year | DOI | Venue |
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2020 | 10.1109/TCSII.2019.2946395 | IEEE Transactions on Circuits and Systems II: Express Briefs |
Keywords | DocType | Volume |
Impedance,Broadband communication,Bandwidth,Mathematical model,Impedance matching,Circuits and systems,Design methodology | Journal | 67 |
Issue | ISSN | Citations |
10 | 1549-7747 | 0 |
PageRank | References | Authors |
0.34 | 0 | 6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Chuan Li | 1 | 0 | 1.01 |
Fei You | 2 | 0 | 1.35 |
Jun Peng | 3 | 7 | 1.86 |
Jinchen Wang | 4 | 6 | 2.17 |
Muhammad Furqan Haider | 5 | 0 | 1.01 |
Songbai He | 6 | 5 | 1.28 |