A continuous-mode harmonically tuned 19-to-29.5GHz ultra-linear PA supporting 18Gb/s at 18.4% modulation PAE and 43.5% peak PAE

Li, Tso-Wei; Huang, Mingyu; Wang, Hua

doi:10.1109/isscc.2018.8310358

Cited by 43 publications

(6 citation statements)

References 5 publications

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“…To partially alleviate this, the matching network design can be based on the continuous PA modes theory [54]. Although developed as a general concept and demonstrated at RF and microwave frequencies [55], [56], it has already found application at mm-wave frequencies, as for example in [57], [58]. While for an application of textbook continuous mode theory the harmonics must be controlled precisely, the practical advantage that they bring is the understanding that matching requirements can be relaxed by accepting a slight and controlled reduction of performance [59].…”

Section: Design Techniquesmentioning

confidence: 99%

A Review of Technologies and Design Techniques of Millimeter-Wave Power Amplifiers

Camarchia

Quaglia

Piacibello

et al. 2020

IEEE Trans. Microwave Theory Techn.

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139

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This paper reviews the state-of-the-art of millimeterwave power amplifiers, focussing on broadband design techniques. An overview of the main solid-state technologies is provided, including Si, GaAs, GaN and other III-V materials, and both field-effect and bipolar transistors. The most popular broadband design techniques are introduced, before critically comparing through the most relevant design examples found in the scientific literature. Given the wide breadth of applications that are foreseen to exploit the millimeter-wave (mm-wave) spectrum, this contribution will represent a valuable guide for designers who need a single reference before adventuring in the challenging task of mm-wave power amplifier design. Index Terms-Broadband, millimeter wave, power amplifiers. I. INTRODUCTION T HE millimeter-wave (mm-wave) spectrum is attracting a great interest for applications such as 5G and future satellite communications that go well beyond the traditional niche of military and scientific use in terms of investments and potential revenues. The most attractive feature of mm-waves compared to the RF and microwave band is the huge spectrum availability that gives a great advantage in terms of capacity for telecommunication systems. Other advantages of mm-wave systems are the compact size of circuits, especially antennas, and the intrinsic easiness of frequency reuse thanks to the high free-space attenuations. There are also some advantages that are band-specific; for example, the very high attenuation in the 60 GHz band due to oxygen absorption that enables intrinsically secure communications. On the other hand, the very high frequency of operation poses significant challenges to system and circuit design. Similarly to what happens at lower frequency, one of the most critical circuit components is the power amplifier (PA). Its

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Section: Design Techniquesmentioning

confidence: 99%

A Review of Technologies and Design Techniques of Millimeter-Wave Power Amplifiers

Camarchia

Quaglia

Piacibello

et al. 2020

IEEE Trans. Microwave Theory Techn.

Self Cite

139

View full text Add to dashboard Cite

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“…The work compares favorably to [19], which was an RF power-DAC operating at similar frequency and resolution. It also compares favorably to the mmW outphasing [17], [37], [38], mmW Doherty [39], [40], and linear mmW PAs [41], [42], noting that the proposed implementation delivers high output power while including the DAC+mixer functionality, whereas the other comparisons include fewer features. The presented approach is promising for other mmW hard-switching architectures as well, as frequency multiplication can be embedded into the output stages in Doherty and envelope elimination and restoration transmitters.…”

Section: Discussionmentioning

confidence: 98%

A mm-Wave Switched-Capacitor RFDAC

Nguyen

Walling

Zhu

et al. 2022

IEEE J. Solid-State Circuits

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This article proposes an interleaving switchedcapacitor RF digital-to-analog converter (RFDAC) using an edge combiner within the output stage to implicitly triple its effective clock carrier frequency and enable the mm-wave (mmW) operation. Tripling in the output stage allows for increased energy efficiency, which is further improved by employing an edgecombining-based frequency-tripling delay-locked loop (DLL) in the clock generation network. The clock tripling is performed in each slice of the switched-capacitor PA (SCPA), which allows yet another 3× frequency reduction for the global clock distribution. Finally, a new layout structure accounts for transmission-line (TL) effects, due to the large physical size of the passive capacitor array. Implemented in 22-nm FD-SOI, the prototype achieves P out > 21 dBm, drain efficiency >36%, and system efficiency >22% while operating in the Ka-band at 28 GHz. Modulation at 2.4 Gb/s results in 3.3% EVM and 30.8-dBc adjacent channel leakage ratio (ACLR).

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“…Different methods for built-in AM-AM/AM-PM linearization have been proposed and demonstrated [62]- [66]. Various harmonic termination schemes have been reported to further improve the PA efficiency [67]- [70]. For 5G 28 GHz applications, output power can reach 19 dBm and 44% PAE, while 6 dB backoff PAE can reach above 20%.…”

Section: A Class Ab-biased 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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A continuous-mode harmonically tuned 19-to-29.5GHz ultra-linear PA supporting 18Gb/s at 18.4% modulation PAE and 43.5% peak PAE

Cited by 43 publications

References 5 publications

A Review of Technologies and Design Techniques of Millimeter-Wave Power Amplifiers

A Review of Technologies and Design Techniques of Millimeter-Wave Power Amplifiers

A mm-Wave Switched-Capacitor RFDAC

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

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