Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation
The conventional broadband impedance matching network in low-pass structure cannot present adequate broadband impedance rotation for the optimum broadband operation of the power amplifier (PA), resulting in performance variations and degradations. The underlying constraint is the phenomenon of oppos...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8620686/ |
| _version_ | 1818911630002487296 |
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| author | Xiangyu Meng Cuiping Yu Yuanan Liu Yongle Wu Xiyu Wang Jianwei Wang |
| author_facet | Xiangyu Meng Cuiping Yu Yuanan Liu Yongle Wu Xiyu Wang Jianwei Wang |
| author_sort | Xiangyu Meng |
| collection | DOAJ |
| description | The conventional broadband impedance matching network in low-pass structure cannot present adequate broadband impedance rotation for the optimum broadband operation of the power amplifier (PA), resulting in performance variations and degradations. The underlying constraint is the phenomenon of opposite impedance rotation. Against such a backdrop, this paper presents a methodology using the band-pass topology to compensate the frequency-variable response of the PA. The CGH40010F from Cree is used to verify the effectiveness of this compensation method. The experimental results are in good agreement with the simulation. The proposed PA yields good gain flatness (±0.5 dB), input/output return loss (>13 dB), and high power added efficiency (>60 %) over the band from 1.7 to 2.7 GHz. After digital predistortion, the measured adjacent channel power ratio is about -55 and -50 dBc at ±5 and ±10 MHz offset when the PA is driven by 5- and 10-MHz WCDMA signals at 6.5 ~ 7 dB power back-off. |
| first_indexed | 2024-12-19T23:01:45Z |
| format | Article |
| id | doaj.art-692cb777d6ca48be9ce57b158e98dbf9 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T23:01:45Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-692cb777d6ca48be9ce57b158e98dbf92022-12-21T20:02:28ZengIEEEIEEE Access2169-35362019-01-017133041331610.1109/ACCESS.2019.28928658620686Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation CompensationXiangyu Meng0https://orcid.org/0000-0003-4942-2303Cuiping Yu1https://orcid.org/0000-0003-2989-3255Yuanan Liu2Yongle Wu3https://orcid.org/0000-0002-3269-7143Xiyu Wang4Jianwei Wang5The ZTE Corporation of China, Shenzhen, ChinaDepartment of Electronic Engineering, Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing University of Posts and Telecommunications, Beijing, ChinaDepartment of Electronic Engineering, Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing University of Posts and Telecommunications, Beijing, ChinaDepartment of Electronic Engineering, Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Mobile Network and Mobile Multimedia Technology, The ZTE Corporation of China, Shenzhen, ChinaState Key Laboratory of Mobile Network and Mobile Multimedia Technology, The ZTE Corporation of China, Shenzhen, ChinaThe conventional broadband impedance matching network in low-pass structure cannot present adequate broadband impedance rotation for the optimum broadband operation of the power amplifier (PA), resulting in performance variations and degradations. The underlying constraint is the phenomenon of opposite impedance rotation. Against such a backdrop, this paper presents a methodology using the band-pass topology to compensate the frequency-variable response of the PA. The CGH40010F from Cree is used to verify the effectiveness of this compensation method. The experimental results are in good agreement with the simulation. The proposed PA yields good gain flatness (±0.5 dB), input/output return loss (>13 dB), and high power added efficiency (>60 %) over the band from 1.7 to 2.7 GHz. After digital predistortion, the measured adjacent channel power ratio is about -55 and -50 dBc at ±5 and ±10 MHz offset when the PA is driven by 5- and 10-MHz WCDMA signals at 6.5 ~ 7 dB power back-off.https://ieeexplore.ieee.org/document/8620686/Band-pass matching networkbroadband impedance rotationbroadband reactive matchingpower amplifiersynthesis method |
| spellingShingle | Xiangyu Meng Cuiping Yu Yuanan Liu Yongle Wu Xiyu Wang Jianwei Wang Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation IEEE Access Band-pass matching network broadband impedance rotation broadband reactive matching power amplifier synthesis method |
| title | Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation |
| title_full | Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation |
| title_fullStr | Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation |
| title_full_unstemmed | Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation |
| title_short | Implementation of Flat Gain Broadband Power Amplifier With Impedance Rotation Compensation |
| title_sort | implementation of flat gain broadband power amplifier with impedance rotation compensation |
| topic | Band-pass matching network broadband impedance rotation broadband reactive matching power amplifier synthesis method |
| url | https://ieeexplore.ieee.org/document/8620686/ |
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