Broadband class-E power amplifier design using tunable output matching network

Moloudi, Farzad; Jahanirad, Hadi

doi:10.1016/j.aeue.2020.153142

Cited by 20 publications

(6 citation statements)

References 31 publications

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“…As one of the most widely used SMPAs in RF and microwave PA applications, Class-E PAs have attracted much attention in past decades [1,8,10,[20][21][22][23], which originate from the Class-D push-pull configuration and have exhibited simple topology, lower power consumption, and good harmonic suppression characteristics [24,25].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Power Losses and Efficiency of Broadband Parallel-Circuit Class-E Power Amplifier

Lu,

Jiang,

Zhang

2024

IEEE Access

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This paper presents a design method for a watt-level high-efficiency broadband power amplifier (BPA) with a generalized parallel-circuit (PC) Class-E model. A combination of the singlereactance compensation technique (S-RCT) and Chebyshev low-pass (LP) impedance matching network (MN) is used for achieving PA's broadband characteristics. The analytical expression of the operation and power loss mechanisms of PC Class-E PA, which includes the effects of a finite DC-feed inductance, transistor on-resistance, and a broadband MN, is elaborated. As an example, a highly-efficient broadband PC (BPC) Class-E PA operating at 12 V drain supply voltage is implemented and verified experimentally. The designed PA exhibits high-efficiency characteristics of 82.15%-86.3% drain efficiency (DE) and 36.92-38.57 dBm output power (Pout) with 19.95-23.11 dB power gain in the band from 7 MHz to 9.4 MHz. The measured results show good agreement with the theoretical and simulated results. INDEX TERMSClass-E, parallel-circuit, power losses, high-efficiency, broadband matching, power amplifier.

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Section: Introductionmentioning

confidence: 99%

Optimizing Power Losses and Efficiency of Broadband Parallel-Circuit Class-E Power Amplifier

Lu,

Jiang,

Zhang

2024

IEEE Access

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“…After several decades of research, there are many forms of PAs [1]. Among them, the switching-mode PAs, such as class-E PAs [2,3,4,5], class-F PAs [6,7,8,9], class-J PAs [10,11,12,13] and hybrid class PAs [14,15,16,17,31], can realize high-efficiency and high-power. Besides, impedance transformer is another effective method for PA design [18,19,20].…”

Section: Introductionmentioning

confidence: 99%

A power amplifier by using asymmetrical branch-line coupler

Peng²,

Wang

et al. 2022

IEICE Electron. Express

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In this paper, a novel power amplifier (PA) is proposed. An asymmetrical branch-line coupler is exploited as the output matching circuits of the proposed PA. Meanwhile, by setting the impedance conditions with trade-off in desired pass-band appropriately, impedance matching and output power combination can be realized in a single circuit. A brief analysis of the asymmetrical branch-line coupler is presented. Compared with the traditional high-power PAs design method, this design method can meet the requirement of the miniaturization. To prove the validity of the proposed method, a PA works at 2 GHz is designed, fabricated and measured by using a 10-W gallium nitride (GaN) transistor (CGH40010F). The measured results show that a saturated output power of 42.8-45.2 dBm with a poweradded efficiency of 52.0-62.6% is achieved and a saturated power gain between 7.9 and 10.1dB.

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“…In [5], first compensation circuit of concurrent DB class-E PA was accounted. In [6], a tunable output matching network (OMN) was presented where BPF is attained using a Varactor Diode Stack. By altering the bias voltage of the varactor diodes, the operational frequency of T-BPF can be adjusted from 1 to 2.55 GHz bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Efficiency and Linearity of Cascode Class-E Power Amplifier with Reconfigurable Filter Network for wirelesses Application

Seema

Kumar

2022

Preprint

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High gain and high-efficiency Cascode Class-E power amplifier (PA) with Reconfigurable Filter Network for wireless application system using 0.25µm GaN technology is presented in the paper. Cascode Class-E PA is combined with a transmission line and Micro strip inter digital capacitor (MICAP) to illustrate a harmonic balance matching technique. The PA is composed of two stages and adopts a current source inter digital microwave capacitor (CSTIMC) and Cascode Class-E. This technique also enhances the resonant circuits band properties. Micro strip inter digital capacitor (MICAP) helps to enhance an internal matching design. For maximum output power, drain efficiency, and PAE the fundamental and second harmonic impedances are to be accurately improved for the particular operating frequency. The results represent maximum output power of 43.1dBm, drain efficiency of 74.5 % and power added efficiency (PAE) of 67.8 %. The fundamental and second harmonic balance levels are adjusted at -21dBc to -16dBc. The simulated and the measured results of the proposed power amplifier show the right consistency.

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Broadband class-E power amplifier design using tunable output matching network

Cited by 20 publications

References 31 publications

Optimizing Power Losses and Efficiency of Broadband Parallel-Circuit Class-E Power Amplifier

Optimizing Power Losses and Efficiency of Broadband Parallel-Circuit Class-E Power Amplifier

A power amplifier by using asymmetrical branch-line coupler

Analysis of Efficiency and Linearity of Cascode Class-E Power Amplifier with Reconfigurable Filter Network for wirelesses Application

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