volume | PIER Journals

Abstract

This paper presents a design methodology for a concurrent dual-band integrated filtering high-efficiency power amplifier (PA) through the coordinated use of a dual-band harmonic control network (DB-HCN) realized with an adjustable-transmission-zero dualband filtering matching network (ATZ-DB-FMN). To improve the efficiency under dual-band operation, the proposed DB-HCN enables simultaneous impedance control up to the third harmonic at both operating frequencies. To realize a compact integrated structure, the proposed ATZ-DB-FMN provides dual-band impedance matching,and introduces transmission zeros (TZs) on both sides of the passbands and in the inter-band region. In particular, the inter-band TZ is adjustable and can be used to suppress interference at a desired frequency between the two passbands. To validate the proposed method, a prototype operating at 2.4 and 3.6 GHz was designed and fabricated, with the adjustable TZ set at 3.1 GHz. The measured results show drain efficiencies of 78.6% and 75.3% and output powers of 40.05 dBm and 40.2 dBm at 2.4 and 3.6 GHz, respectively. The effective tuning range of the TZ is 2.6-3.4 GHz, and the measured power gain at 3.1 GHz is -26.5 dB, confirming effective inter-band suppression. These results demonstrate that the proposed design method can simultaneously achieve dual-band high efficiency, integrated filtering, and adjustable inter-band suppression.

1. Lee, Geunyong, Jonghun Jung, and Jong-In Song, "A multiband power amplifier with a reconfigurable output-matching network for 10-MHz BW LTE mobile phone applications," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 62, No. 6, 558-562, Jun. 2015.
doi:10.1109/tcsii.2015.2407775 Google Scholar

2. Zheng, Xianfeng, Yuan'an Liu, Shulan Li, Cuiping Yu, Zerui Wang, and Jiuchao Li, "A dual-band impedance transformer using PI-section structure for frequency-dependent complex loads," Progress In Electromagnetics Research C, Vol. 32, 11-26, 2012.
doi:10.2528/pierc12052909 Google Scholar

3. Liu, Wang, Qiang Liu, Guangxing Du, and Guolin Li, "Analytical dual-band matching approach for concurrent high-efficiency power amplifiers," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 69, No. 12, 4769-4773, Dec. 2022.
doi:10.1109/tcsii.2022.3182169 Google Scholar

4. Cai, Qi, Wenquan Che, Kaixue Ma, and Liming Gu, "A concurrent dual-band high-efficiency power amplifier with a novel harmonic control network," IEEE Microwave and Wireless Components Letters, Vol. 28, No. 10, 918-920, Oct. 2018.
doi:10.1109/lmwc.2018.2860798 Google Scholar

5. Pang, Jingzhou, Songbai He, Chaoyi Huang, Zhijiang Dai, Caoyu Li, and Jun Peng, "A novel design of concurrent dual-band high efficiency power amplifiers with harmonic control circuits," IEEE Microwave and Wireless Components Letters, Vol. 26, No. 2, 137-139, Feb. 2016.
doi:10.1109/lmwc.2016.2517334 Google Scholar

6. Colantonio, Paolo, Franco Giannini, Rocco Giofre, and Luca Piazzon, "A design technique for concurrent dual-band harmonic tuned power amplifier," IEEE Transactions on Microwave Theory and Techniques, Vol. 56, No. 11, 2545-2555, Nov. 2008.
doi:10.1109/tmtt.2008.2004897 Google Scholar

7. Chen, Peng, Songbai He, Xianfei Wang, and Zhijiang Dai, "1.7/2.6 GHz high-efficiency concurrent dual-band power amplifier with dual-band harmonic wave controlled transformer," Electronics Letters, Vol. 50, No. 3, 184-185, Jan. 2014.
doi:10.1049/el.2013.3781 Google Scholar

8. Fu, Xin, Dylan T. Bespalko, and Slim Boumaiza, "Novel dual-band matching network for effective design of concurrent dual-band power amplifiers," IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 61, No. 1, 293-301, Jan. 2014.
doi:10.1109/tcsi.2013.2268132 Google Scholar

9. Liu, Mingming, Xiaohu Fang, Hai Huang, and Slim Boumaiza, "Dual-band 3-way Doherty power amplifier with extended back-off power and bandwidth," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 67, No. 2, 270-274, Feb. 2020.
doi:10.1109/tcsii.2019.2907481 Google Scholar

10. Zhao, Hongyi and Dan Zhang, "Dual-band class-F power amplifier with bandwidth expansion based on sector microstrip branch for 5G applications," IEEE Microwave and Wireless Components Letters, Vol. 31, No. 7, 877-880, Jul. 2021.
doi:10.1109/lmwc.2021.3074411 Google Scholar

11. Guan, Meng, Mingyu Sun, Xuedong Fu, Fan Zhang, and Aixin Chen, "Dual-band power amplifier with bandwidth extension based on broadband harmonic control part dual transmission line," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 70, No. 11, 3978-3982, Nov. 2023.
doi:10.1109/tcsii.2023.3285775 Google Scholar

12. Li, Shaobo, Yongle Wu, Yuhao Yang, Xiaopan Chen, Weimin Wang, and Zhuoyin Chen, "Bandpass filtering power amplifier with wide stopband and high out-of-band rejection," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 70, No. 3, 969-973, Mar. 2023.
doi:10.1109/tcsii.2022.3220619 Google Scholar

13. Gao, Yang, Xiaobang Shang, Lei Li, Cheng Guo, and Yi Wang, "Integrated filter-amplifiers: A comprehensive review," IEEE Microwave Magazine, Vol. 23, No. 6, 57-75, Jun. 2022.
doi:10.1109/mmm.2022.3155034 Google Scholar

14. Li, Shaobo, Yongle Wu, Zuoyu Xu, and Weimin Wang, "A diplexer-like dual-band filtering power amplifier with selectable frequency output," IEEE Microwave and Wireless Technology Letters, Vol. 33, No. 12, 1626-1629, Dec. 2023.
doi:10.1109/lmwt.2023.3311193 Google Scholar

15. Zhen, Shuchen, Yongle Wu, Shaobo Li, Zhuoyin Chen, and Weimin Wang, "A dual-band dual-output filtering power amplifier based on high-selectivity filtering impedance transformer," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 2023, No. 1, 5240745, 2023.
doi:10.1155/2023/5240745 Google Scholar

16. Zhong, Jiecheng, Dixian Zhao, and Xiaohu You, "A Ku-band CMOS power amplifier with series-shunt LC notch filter for satellite communications," IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 68, No. 5, 1869-1880, May 2021.
doi:10.1109/tcsi.2021.3056537 Google Scholar

17. Chuang, Ming-Lin and Ming-Tien Wu, "Transmission zero embedded dual-band impedance transformer with three shunt stubs," IEEE Microwave and Wireless Components Letters, Vol. 27, No. 9, 788-790, Sep. 2017.
doi:10.1109/lmwc.2017.2734763 Google Scholar

18. Wang, Zhebin, Shengjie Gao, Fathi Nasri, and Chan-Wang Park, "High power added efficiency power amplifier with harmonic controlled by UWB filter with notched band at 6.42 GHz," WAMICON 2011 Conference Proceedings, 1-4, Clearwater Beach, FL, USA, 2011.
doi:10.1109/WAMICON.2011.5872867

19. Yishay, Roee Ben, Roi Carmon, Oded Katz, Benny Sheinman, Donald Papae, Frank Szenher, and Danny Elad, "A millimeter-wave SiGe power amplifier with highly selective image reject filter," 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS 2011), 1-5, Tel Aviv, Israel, 2011.
doi:10.1109/COMCAS.2011.6105852

20. Chen, Hui and Xian-Qing Shi, "An ultra-wideband power amplifier with band notched response," Microwave and Optical Technology Letters, Vol. 62, No. 6, 2174-2177, Jun. 2020.
doi:10.1002/mop.32302 Google Scholar

21. Shen, Ce, Songbai He, Jun Peng, Tingting Yao, and Fei You, "Design of dual-mode high efficiency tri-band power amplifier using input and output harmonic control technology," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 31, No. 10, e22790, 2021.
doi:10.1002/mmce.22790 Google Scholar

22. Guo, Yu, Cuiping Yu, Yuanan Liu, and Ke Xu, "A dual-band power amplifier with controllable bandwidth ratio," IEEE Microwave and Wireless Technology Letters, Vol. 34, No. 2, 215-217, Feb. 2024.
doi:10.1109/lmwt.2023.3343516 Google Scholar

23. Zhang, Zhiwei, Zhiqun Cheng, Vincent Fusco, and Chao Gu, "Design of a dual-band power amplifier using a simple method," IEEE Microwave and Wireless Components Letters, Vol. 31, No. 2, 149-152, Feb. 2021.
doi:10.1109/lmwc.2020.3047733 Google Scholar

24. Dai, Zhijiang, Songbai He, Jingzhou Pang, Jun Peng, Chaoyi Huang, and Fei You, "Sub-optimal matching method for dual-band class-J power amplifier using real frequency technique," IET Microwaves, Antennas & Propagation, Vol. 11, No. 9, 1218-1226, Jul. 2017.
doi:10.1049/iet-map.2015.0703 Google Scholar

25. Yang, Zhenxing, Yao Yao, Mingyu Li, Yi Jin, Tian Li, Zhen Geng, and Zhiqiang Yu, "A precise harmonic control technique for high efficiency concurrent dual-band continuous class-F power amplifier," IEEE Access, Vol. 6, 51864-51874, 2018.
doi:10.1109/access.2018.2870865 Google Scholar

26. Zhao, Hongmin, Yongle Wu, Weimin Wang, and Yuanan Liu, "A novel dual-band highly efficient power amplifier for 5G applications," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 32, No. 5, e23093, 2022.
doi:10.1002/mmce.23093 Google Scholar

Mr. Qihu Tang

Professor Jingchang Nan

Dr. Taijun Liu

Dr. Hao Meng

Dr. Junru Pan