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Doherty: \u201cA new high efficiency power amplifier for modulated waves,\u201d Proc. IRE <b>24<\/b> (1936) 1163 (DOI: 10.1109\/JRPROC.1936.228468)."},{"key":"2","unstructured":"[2] M. Iwamoto, <i>et al.<\/i>: \u201cAn extended Doherty amplifier with high efficiency over a wide power range,\u201d IEEE Trans. Microw. Theory Techn. <b>49<\/b> (2001) 2472 (DOI: 10.1109\/22.971638)."},{"key":"3","unstructured":"[3] X.H. Fang, <i>et al.<\/i>: \u201cExtension of high-efficiency range of Doherty amplifier by using complex combining load,\u201d IEEE Trans. Microw. Theory Techn. <b>62<\/b> (2014) 2038 (DOI: 10.1109\/TMTT.2014.2333713)."},{"key":"4","unstructured":"[4] J. Xia, <i>et al.<\/i>: \u201cHigh-efficiency GaN Doherty power amplifier for 100-MHz LTE-advanced application based on modified load modulation network,\u201d IEEE Trans. Microw. Theory Techn. <b>61<\/b> (2013) 2911 (DOI: 10.1109\/TMTT.2013.2269052)."},{"key":"5","unstructured":"[5] J.H. 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Gustafsson, <i>et al.<\/i>: \u201cA modified Doherty power amplifier with extended bandwidth and reconfigurable efficiency,\u201d IEEE Trans. Microw. Theory Techn. <b>61<\/b> (2013) 533 (DOI: 10.1109\/TMTT.2012.2227783)."},{"key":"10","unstructured":"[10] D.Y.-Y. Wu, <i>et al.<\/i>: \u201cA mixed-technology asymmetrically biased extended and reconfigurable Doherty amplifier with improved power utilization factor,\u201d IEEE Trans. Microw. Theory Techn. <b>61<\/b> (2013) 1946 (DOI: 10.1109\/TMTT.2013.2252188)."},{"key":"11","unstructured":"[11] J. Pang, <i>et al.<\/i>: \u201cDesign of a post-matching asymmetric Doherty power amplifier for broadband applications,\u201d IEEE Microw. Wireless Compon. Lett. <b>26<\/b> (2015) 52 (DOI: 10.1109\/LMWC.2015.2505651)."},{"key":"12","unstructured":"[12] J. Pang, <i>et al.<\/i>: \u201cA post-matching Doherty power amplifier employing low-order impedance inverters for broadband applications,\u201d IEEE Trans. Microw. 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Shi, <i>et al.<\/i>: \u201cThe influence of the output impedances of peaking power amplifier on broadband Doherty amplifiers,\u201d IEEE Trans. Microw. Theory Techn. <b>65<\/b> (2017) 3002 (DOI: 10.1109\/TMTT.2017.2673822)."},{"key":"21","unstructured":"[21] Z. Yang, <i>et al.<\/i>: \u201cBandwidth extension of Doherty power amplifier using complex combining load with noninfinity peaking impedance,\u201d IEEE Trans. Microw. Theory Techn. <b>67<\/b> (2019) 765 (DOI: 10.1109\/TMTT.2018.2884415)."},{"key":"22","unstructured":"[22] X. Chen, <i>et al.<\/i>: \u201cA broadband Doherty power amplifier based on continuous-mode technology,\u201d IEEE Trans. Microw. Theory Techn. <b>64<\/b> (2016) 4505 (DOI: 10.1109\/TMTT.2016.2623705)."},{"key":"23","unstructured":"[23] C. Huang, <i>et al.<\/i>: \u201cDesign of broadband modified class-J Doherty power amplifier with specific second harmonic terminations,\u201d IEEE Access <b>6<\/b> (2018) 2531 (DOI: 10.1109\/ACCESS.2017.2784094)."},{"key":"24","unstructured":"[24] J. Kwon, <i>et al.<\/i>: \u201cBroadband Doherty power amplifier based on asymmetric load matching networks,\u201d IEEE Trans. Circuit Syst. II, Exp. Briefs <b>62<\/b> (2015) 533 (DOI: 10.1109\/TCSII.2015.2407197)."},{"key":"25","unstructured":"[25] Y. Li, <i>et al.<\/i>: \u201cTwo-port network theory-based designed method for broadband class J Doherty amplifiers,\u201d IEEE Access <b>7<\/b> (2019) 51028 (DOI: 10.1109\/ACCESS.2019.2911891)."},{"key":"26","unstructured":"[26] S.C. Cripps, <i>et al.<\/i>: \u201cOn the continuity of high efficiency modes in linear RF power amplifiers,\u201d IEEE Microw. Wireless Compon. 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Yang: \u201cHighly efficient broadband continuous inverse class-F power amplifier design using modified elliptic low-pass filtering matching network,\u201d IEEE Trans. Microw. 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