A Fully Integrated 3.5-/4.9-GHz Dual-Band GaN MMIC Doherty Power Amplifier Based on Multi-Resonant Circuits

Chen, Wenhua; Chen, Xiaofan; Wan, Shun; Ghannouchi, Fadhel M.; Feng, Zhenghe

doi:10.1109/tmtt.2021.3112163

Cited by 9 publications

(4 citation statements)

References 48 publications

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“…To improve the user experience, the 5G NR specifies numerous bands at both sub‐6 GHz and mm‐Wave frequency bands 1–5 . This leads to the frequency spectrum of wireless communications is not consist of a contiguously wide frequency band, but consist of many narrow band channels 2–5 .…”

Section: Introductionmentioning

confidence: 99%

“…To improve the user experience, the 5G NR specifies numerous bands at both sub-6 GHz and mm-Wave frequency bands. [1][2][3][4][5] This leads to the frequency spectrum of wireless communications is not consist of a contiguously wide frequency band, but consist of many narrow band channels. [2][3][4][5] This particular feature of the wireless communication demands power amplifiers (PAs) that can support multiband operation, while maintaining high efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5] This leads to the frequency spectrum of wireless communications is not consist of a contiguously wide frequency band, but consist of many narrow band channels. [2][3][4][5] This particular feature of the wireless communication demands power amplifiers (PAs) that can support multiband operation, while maintaining high efficiency. 6,7 Therefore, it is desirable to realize PAs that can operate across each of these narrow band channels with high performances.…”

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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%

Section: Introductionmentioning

confidence: 99%

mentioning

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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show abstract

“…UWB has great advantages in expanding bandwidth, but the inband matching performance is not ideal [1,2,3,4,5,6,7]. Dual-band technology is characterized by dual-band operation and no need for radio-frequency switches to achieve frequency band switching, but the circuit is highly complex and the bandwidth on a single frequency band is narrow [8,9,10,11,12,13,14]. The advantages of frequency reconfigurable technology are fast switching among different working frequency bands, frequency continuous adjustable, multi-band operation, better performance, and flexible circuit design [15,16,17,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Design of GaN reconfigurable power amplifier based on band-pass filter matching networks

Zhang

Cong

Song

et al. 2022

IEICE Electron. Express

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A broadband GaN reconfigurable power amplifier based on band-pass filter matching networks is presented in this work. To realize the reconfigurable power amplifier, closed-form solution theory and distributed PIN switch are used in matching network design. PIN switch controls the branch circuit of the matching network. This reconfigurable PA is designed for 1.2-2.0 GHz and 2.2-3.0 GHz, which has 10 W (40 dBm) output power at least and 37.4% drain efficiency (DE) with the power gain higher than 10 dB. Measurement results show the designed reconfigurable PA meets the parameters mentioned above, and the correctness of the proposed reconfigurable PA theory is verified.

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Design of Fully Integrated GaN Dual-Band Doherty Power Amplifier for 5G Wireless Communication

Liu,

Gao,

Dai

et al. 2024

2024 15th Global Symposium on Millimeter-Waves &Amp;amp; Terahertz (GSMM)

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A Fully Integrated 3.5-/4.9-GHz Dual-Band GaN MMIC Doherty Power Amplifier Based on Multi-Resonant Circuits

Cited by 9 publications

References 48 publications

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

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

Design of GaN reconfigurable power amplifier based on band-pass filter matching networks

Design of Fully Integrated GaN Dual-Band Doherty Power Amplifier for 5G Wireless Communication

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