24.3 A 28GHz Current-Mode Inverse-Outphasing Transmitter Achieving 40%/31% PA Efficiency at P<sub>sat</sub>/6dB PBO and Supporting 15Gbit/s 64-QAM for 5G Communication

Li, Sensen; Huang, Min-Yu; Jung, Doohwan; Huang, Tzu-Yuan; Wang, Hua

doi:10.1109/isscc19947.2020.9063123

Cited by 28 publications

(12 citation statements)

References 5 publications

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“…Correspondingly, the inverse Outphasing PA employs a simple parallel current power combiner and a series Chiriex compensation network. Its inherent current source driving condition makes the inverse Outphasing more conducive for high mm-Wave applications [122], see Fig. 17.…”

Section: Outphasing Pasmentioning

confidence: 99%

Millimeter-Wave Power Amplifier Integrated Circuits for High Dynamic Range Signals

2021

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The next-generation 5G and beyond-5G wireless systems have stimulated a substantial growth in research, development, and deployment of mm-Wave electronic systems and antenna arrays at various scales. It is also envisioned that large dynamic range modulation signals with high spectral efficiency will be ubiquitously employed in future communication and sensing systems. As the interface between the antennas and transceiver electronics, power amplifiers (PAs) typically govern the output power, energy efficiency, and reliability of the entire wireless systems. However, the wide use of high dynamic range signals at mm-Wave carrier frequencies substantially complicates the design of PAs and demands an ultimate balance of energy efficiency and linearity as well as other PA performances. In this review paper, we will first introduce the system-level requirements and design challenges on mm-Waves PAs due to high dynamic range signals. We will review advanced active load modulation architectures for mm-Wave PAs and power devices. We will then introduce recent advances in mm-Wave PA technologies and innovations with several design examples. Special design considerations on mm-Wave PAs for phased array MIMOs and high mm-Wave frequencies will be outlined. We will also share our vision on future technology trends and innovation opportunities.INDEX TERMS 5G, 6G, dynamic range, energy efficiency, integrated circuits, millimeter-wave, mobile communication, OFDM, peak to average power ratio (PAPR), power amplifier, quadrature amplitude modulation (QAM). I. INTRODUCTION

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Section: Outphasing Pasmentioning

confidence: 99%

Millimeter-Wave Power Amplifier Integrated Circuits for High Dynamic Range Signals

2021

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“…The PA power delivery and LNA NF are required to be optimized together with the TRX switch considering the insertion loss and chip area. Facing the complex modulated signals in 5G, the PA efficiency in the deep PBO region also demands further improvement [32], [33]. Moreover, the packaging design is critical to the overall performance of 5G millimeter-wave phased-array systems.…”

Section: Pa-lnamentioning

confidence: 99%

A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems

Pang

Luo

et al. 2021

IEEE J. Solid-State Circuits

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This article introduces a power-efficient and lowcost CMOS 28-GHz phased-array beamformer supporting fifthgeneration (5G) dual-polarized multiple-in-multiple-out (MIMO) (DP-MIMO) operation. To improve the cross-polarization (crosspol.) isolation degraded by the antennas and propagation, a power-efficient analog-assisted cross-pol. leakage cancellation technique is implemented. After the high-accuracy cancellation, more than 41.3-dB cross-pol. isolation is maintained along with the transmitter array to the receiver array. The element-beamformer in this work adopts the compact neutralized bi-directional architecture featuring a minimized manufacturing cost. The proposed beamformer achieves 22% per path TX-mode efficiency and a 4.9-dB RX-mode noise figure. The required onchip area for the beamformer is only 0.48 mm 2 . In over-the-air measurement, a 64-element dual-polarized phased-array module achieves 52.2-dBm saturated effective isotropic radiated power (EIRP). The 5G standard-compliant OFDMA-mode modulated signals of up to 256-QAM could be supported by the 64-element modules. With the help of the cross-pol. leakage cancellation technique, the proposed array module realizes improved DP-MIMO EVMs even under severe polarization coupling and rotation conditions. The measured DP-MIMO EVMs are 3.4% in both 64-QAM and 256-QAM. The consumed power per

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“…In previous papers that adopted the double gate-bias control scheme, LPM operation showed only about 3-4 dB power back-off characteristics, and even they showed power reconfigurability less than 2 dBm at 5 GHz or less depending on frequencies [5]- [6]. However, in commercial communication systems, power back-off of 5-6 dB or more is required during an LPM operation [19]. In conclusion, a new power reconfiguration method is needed to extend the gain bandwidth and power back-off in LPM.…”

Section: = ( − )mentioning

confidence: 99%

A mHEMT Power-Reconfigurable Distributed Amplifier Using a Gain Cell Switching Technique

Kim

2021

IEEE Access

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A power-reconfigurable distributed amplifier (DA) is implemented using a 130 nm metamorphic high-electron mobility transistor (mHEMT) process. Using a mHEMT process with excellent high-frequency characteristics, output power and efficiency at high frequencies are improved compared with the existing power-reconfigurable distributed amplifiers. In this article, a gain cell switching technique is proposed as the power reconfiguration method for the distributed amplifier. The gain cell switching technique expands the gain bandwidth and power reconfigurability more than the conventional bias control. The proposed power-reconfigurable DA obtains a measured linear gain of 10.0-13.6 dB from 0.5 to 62.5 GHz and a measured output power of 20.2-21.5 dBm from 10 to 40 GHz. A measured power added efficiency (PAE) is 11.6-20.0% from 10 to 40 GHz. Under a low power mode (LPM), it obtains a measured linear gain of 4.4-7.1 dB from 0.5 to 65 GHz and a measured output power of 14.7-15.9 dBm from 10 to 40 GHz. At 10 GHz, a drain efficiency (DE) is 11.4% at 5.6 dB power back-off. This is 6.5% higher than the conventional DA or more than twice as high.

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24.3 A 28GHz Current-Mode Inverse-Outphasing Transmitter Achieving 40%/31% PA Efficiency at P_sat/6dB PBO and Supporting 15Gbit/s 64-QAM for 5G Communication

Cited by 28 publications

References 5 publications

Millimeter-Wave Power Amplifier Integrated Circuits for High Dynamic Range Signals

Millimeter-Wave Power Amplifier Integrated Circuits for High Dynamic Range Signals

A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems

A mHEMT Power-Reconfigurable Distributed Amplifier Using a Gain Cell Switching Technique

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24.3 A 28GHz Current-Mode Inverse-Outphasing Transmitter Achieving 40%/31% PA Efficiency at Psat/6dB PBO and Supporting 15Gbit/s 64-QAM for 5G Communication

Cited by 28 publications

References 5 publications

Millimeter-Wave Power Amplifier Integrated Circuits for High Dynamic Range Signals

Millimeter-Wave Power Amplifier Integrated Circuits for High Dynamic Range Signals

A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems

A mHEMT Power-Reconfigurable Distributed Amplifier Using a Gain Cell Switching Technique

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24.3 A 28GHz Current-Mode Inverse-Outphasing Transmitter Achieving 40%/31% PA Efficiency at P_sat/6dB PBO and Supporting 15Gbit/s 64-QAM for 5G Communication