http://repository.iitr.ac.in/handle/123456789/8584| Title: | Reconfigurable Chireix Outphasing Power Amplifier over Multiple Frequency Bands |
| Authors: | Aggrawal E. Rawat, Karun |
| Published in: | IEEE Transactions on Circuits and Systems II: Express Briefs |
| Abstract: | This brief presents a new design scheme to expand the operating frequency range of outphasing power amplifier (PA) which is useful for software-defined radio applications. The proposed design scheme offers reconfigurability to multiple operating bands by using reconfigurable Chireix combiner along with wideband PA. For efficiency enhancement at output power back-off at multiple operating frequencies, Chireix combiner should provide correct reactance compensation at each operating frequency. This is achieved by utilizing tunable compensating network, which can be reconfigured to multiple operating frequencies. The proposed methodology is experimentally verified in radio frequency/digital hybrid DSP/field programmable gate array-based platform. The measurement results show efficiency enhancement upto 6-7-dB output power back-off over ±25-MHz bandwidth around 1.65, 2.1, and 2.35 GHz. © 2004-2012 IEEE. |
| Citation: | IEEE Transactions on Circuits and Systems II: Express Briefs (2020), 67(6): 1019-1023 |
| URI: | https://doi.org/10.1109/TCSII.2019.2926529 http://repository.iitr.ac.in/handle/123456789/8584 |
| Issue Date: | 2020 |
| Publisher: | Institute of Electrical and Electronics Engineers Inc. |
| Keywords: | Chireix combiner outphasing power amplifier reactance compensation reconfigurable |
| ISSN: | 15497747 |
| Author Scopus IDs: | 56126169500 57000644800 |
| Author Affiliations: | Aggrawal, E., Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India Rawat, K., Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India |
| Funding Details: | Manuscript received April 9, 2019; revised June 7, 2019; accepted June 27, 2019. Date of publication July 3, 2019; date of current version June 4, 2020. This work was supported in part by the Department of Science and Technology through SERB Project under Grant CRG/2018/003869, and in part by the Ministry of Electronics and Information Technology through Visvesvaraya Ph.D. Scheme. This brief was recommended by Associate Editor I. W. H. Ho. (Corresponding author: Ekta Aggrawal.) The authors are with the Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India (e-mail: aggrawal.ekta@gmail.com; karun.rawat.in@ieee.org). |
| Corresponding Author: | Aggrawal, E.; Department of Electronics and Communication Engineering, Indian Institute of Technology RoorkeeIndia; email: aggrawal.ekta@gmail.com |
| Appears in Collections: | Journal Publications [ECE] |
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