Design of dual-band power amplifier based on tri-band impedance matching circuit

Chen, H.; Liu, G.-X.; Zhu, Fengchao; Han, Meng; Jiang, Di

doi:10.1080/09205071.2021.1909502

Cited by 2 publications

(2 citation statements)

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“…Notice that, the tunable elements will introduce additional power loss. Therefore, advanced methods for designing the passive matching networks were developed to implement high efficiency DBPAs 13–18 . In 2014, the authors proposed a synthesis method of dual‐band matching networks for designing DBPAs, and a DBPA prototype operating at 0.8 and 1.9 GHz was realized 13 .…”

Section: Introductionmentioning

confidence: 99%

“…methods for designing the passive matching networks were developed to implement high efficiency DBPAs. [13][14][15][16][17][18] In 2014, the authors proposed a synthesis method of dual-band matching networks for designing DBPAs, and a DBPA prototype operating at 0.8 and 1.9 GHz was realized. 13 In 2017, Dai et al 16 designed a DBPA using real frequency technique.…”

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confidence: 99%

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Design of a dual‐band power amplifier over an octave bandwidth employing dual‐band resonators

Liu

Liu²,

Shao³

et al. 2023

Int J Numerical Modelling

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In this article, a compact dual‐band resonator is proposed for designing dual‐band power amplifiers (DBPAs). The proposed resonator has the characteristics of the band‐pass filters, suppressing the out‐of band signals. It is illustrated the proposed resonator has a simple circuit topology without sacrificing the performances of the DBPA. To verify the methodology, a high efficiency DBPA prototype operating at 1.72 and 3.48 GHz is fabricated and measured. The DBPA obtains a bandwidth of 100 and 50 MHz at the low and high frequency bands, respectively. The measurement results show that the DBPA delivers a saturation power of 43.1 and 40.8 dBm at 1.72 and 3.48 GHz, respectively. The measured drain efficiencies of the DBPA are 75.4% and 68.6% at 1.72 and 3.48 GHz, respectively. Meanwhile, when the DBPA is stimulated by a 20 MHz LTE signal with a peak to average power ratio (PAPR) of 7 dB, the measured adjacent channel leakage ratios are lower than −50 dBc at both 1.72 and 3.48 GHz after digital predistortion.

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Section: Introductionmentioning

confidence: 99%