A novel design methodology for extended continuous class-F power amplifiers in wireless applications

Zarghami, Sepehr; Hayati, Mohsen; Kazimierczuk, Marian K.; Sekiya, Hiroo

doi:10.1007/s11276-021-02718-8

Wireless Netw

2021

DOI: 10.1007/s11276-021-02718-8

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A novel design methodology for extended continuous class-F power amplifiers in wireless applications

Sepehr Zarghami

Mohsen Hayati

Marian K. Kazimierczuk

et al.

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Cited by 5 publications

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“…Isolation within the middle band is crucial for efficiency and linearity. Due to in-band harmonic interference, particularly in frequency bands below 1 GHz, unwanted harmonics are amplified [17][18][19][20][21] , leading to a reduction in linearity and efficiency. This issue becomes more pronounced in dual-band power amplifiers (PAs) where f O2 > 2f O1 .…”

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Design of dual-band power amplifier using bandstop filter and dual-mode bias circuit for multistandard transceiver systems

Zarghami,

Hayati

2023

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This paper presents a dual-band power amplifier (PA) using a meandered line bandstop filter (BSF). An important challenge addressed in this design is to achieve proper isolation between the operational bands of the amplifier. The proposed BSF provides isolation and efficiency, effectively separating the output power and power gain between the two operational bands. Additionally, a dual-mode bias circuit is designed to serve as an inductor choke and control the second harmonics for both operating frequencies simultaneously. Two dual-band PAs, utilizing LDMOS and GaN HEMT transistors, have been designed using the proposed output matching circuit, which incorporates the BSF, bias circuit, and compensation circuit. The results obtained from both PAs, employing different transistors, are identical. Based on the presented concepts, a dual-band PA with an LDMOS transistor has been fabricated and measured. The measurements reveal an efficiency of 79.23%, an output power of 39.85 dBm, and a power gain of 14.85 dB at a frequency of 0.7 GHz. Similarly, at a frequency of 1.9 GHz, the efficiency is 77.24%, the output power is 38.22 dBm, and the power gain is 13.22 dB.

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Design of dual-band power amplifier using bandstop filter and dual-mode bias circuit for multistandard transceiver systems

Zarghami,

Hayati

2023

Sci Rep

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Design of miniaturized ultra-wide stopband lowpass-bandpass diplexer using hexagon-shaped resonators

Zarghami,

Hayati,

Zarghami

2024

Wireless Netw

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A new bandwidth-extended harmonic-tuned Class-E/F3 power amplifier based on continuous mode design philosophy

Wei

Luo

et al. 2023

AEU - International Journal of Electronics and Communications

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A novel design methodology for extended continuous class-F power amplifiers in wireless applications

Cited by 5 publications

References 38 publications

Design of dual-band power amplifier using bandstop filter and dual-mode bias circuit for multistandard transceiver systems

Design of dual-band power amplifier using bandstop filter and dual-mode bias circuit for multistandard transceiver systems

Design of miniaturized ultra-wide stopband lowpass-bandpass diplexer using hexagon-shaped resonators

A new bandwidth-extended harmonic-tuned Class-E/F3 power amplifier based on continuous mode design philosophy

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