Reconfigurable Chireix Outphasing Power Amplifier Over Multiple Frequency Bands

Aggrawal, Ekta; Rawat, Karun

doi:10.1109/tcsii.2019.2926529

Cited by 14 publications

(8 citation statements)

References 11 publications

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“…To further extend the frequency coverage of an OPA, multi-band operation is a good candidate. Until now, only a few articles have carried out research on multi-band OPAs [29][30][31][32][33][34]. Furthermore, the design methods in these articles can be divided into three categories: the reconfigurable technique based on tunable elements, multi-band matching topology based on the T or Π network and the multi-mode operation-based frequency periodicity of TLs.…”

Section: Review Of Multi-band Opasmentioning

confidence: 99%

“…The load modulation trajectory of an OPA at different frequencies can be optimized by tunable elements, leading to multi-band operation. In [30], a tri-band OPA operating at 1.65, 2.1 and 2.35 GHz was realized by integrating a tunable capacitor and inductor into the Chireix combiner. The tunable capacitor and inductor were designed using varactor diode SMV1430 from SKYWORK.…”

Section: Reconfigurable Opas For Multi-band Applicationsmentioning

confidence: 99%

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Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

Zhang,

Hu,

Liu

et al. 2023

Energies

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Outphasing power amplifiers (OPAs) can be used in wireless information and power transfer systems due to their excellent conversion efficiency. With the rapid advancement of technology, there is a strong demand for OPAs to achieve wideband and multi-band operations to enhance frequency coverage. This paper provides a comprehensive review of the research progress on the development of broadband and multi-band board-level OPAs. Firstly, the paper introduces the fundamental components of an OPA. Then, the paper delves into a detailed analysis of the load modulation of OPAs. Subsequently, previous works on the circuit topology and design methods for broadband and multi-band OPAs are discussed and compared. The paper highlights various design strategies and their respective advantages and disadvantages. Finally, the paper explores some potential design methods for broadband and multi-band OPAs, discussing emerging technologies and highlighting potential research directions.

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Section: Review Of Multi-band Opasmentioning

confidence: 99%

Section: Reconfigurable Opas For Multi-band Applicationsmentioning

confidence: 99%

Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

Zhang,

Hu,

Liu

et al. 2023

Energies

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“…Re-configurable Chireix reactive compensations are achieved at L-band and Ka-band in [18], [19]. These reconfigurable compensations are used to switch between frequency bands and achieve high bandwidth compared to the other methods.…”

Section: Outphasing With Non-isolated Combinersmentioning

confidence: 99%

Outphasing Methods for Beyond-5G Millimeter-Wave Base Station Applications

Versluis

Smolders

Bude

et al. 2021

2021 15th European Conference on Antennas and Propagation (EuCAP)

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“…To obtain a larger bandwidth while maintaining high efficiency, continuous class structures have been proposed [6,7] (continuous class J and continuous class F theories), and there have been a large number of related PAs based on them reported in the literature since then [8,9,10,11,12,13,14,15,16], but due to the second harmonic control required by the high efficiency, these structures are often limited to bandwidths up to one octave. The reconfigurable structure is also an effective way to expand the bandwidth [17,18,19,20,21,22,23,24,25,26,27], which utilizes reconfigurable switches to switch the matching network, and is characterized by simple design method and flexible circuit structure. Through the reverse analytic synthesis of the matching network proposed in [1], [18] developed a PA operating at 1.2-2.0 GHz and 2.2-3.0 GHz with an output capability of around 10 W. The use of switches in the power divider and power synthesis networks, [16] effectively extends the operating bandwidth of Doherty.…”

Section: Introductionmentioning

confidence: 99%

Research and realization of 150W ultra-wideband reconfigurable RF power amplifier

Cong,

Dai,

Ren

et al. 2024

IEICE Electron. Express

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This paper presents a technique for designing broadband reconfigurable power amplifier matching networks using equal Q values. The precise values of the matching elements are determined while also considering restrictions on the impedance transformation ratio and Q value. To achieve the desired band reconfigurability, we leverage the distinct characteristics of the devices at different frequencies and wavelengths to create an equal Q matching network and subsequently calculate the second band. An ultra-wideband reconfigurable RF power amplifier is created to test the viability of the suggested design approach. The test results show that the output power of the amplifier is 51.8-52.5 dBm and the drain efficiency is 45%-62% in the frequency ranges of 170-400 MHz and 470-860 MHz. In addition, the linearity test results of the circuit using a twotone signal with a frequency interval of 0.1 MHz show that the IMD3 value of the whole bandwidth is lower than -20 dBc at an output power of 47 dBm.

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Reconfigurable Chireix Outphasing Power Amplifier Over Multiple Frequency Bands

Cited by 14 publications

References 11 publications

Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

Outphasing Methods for Beyond-5G Millimeter-Wave Base Station Applications

Research and realization of 150W ultra-wideband reconfigurable RF power amplifier

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