Broadband GaN switch mode class E power amplifier for UHF applications

Tanany, Ahmed Al; Sayed, Ahmed; Boeck, Georg

doi:10.1109/mwsym.2009.5165808

Cited by 27 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The input matching network is realized in the same way. Because of the high attenuation of the matching network at harmonics, the lowpass or bandpass filters which are traditionally added after the matching network [3] are no longer needed.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

High‐efficiency wideband class‐E PA with reduced circuit elements

Zhou¹,

Morris²,

Watkins³

et al. 2012

Micro & Optical Tech Letters

View full text Add to dashboard Cite

This letter proposes a method to design wideband class‐E amplifiers.Traditionally, wideband class‐E operation can be achieved by cascading a wideband filter and a wideband matching network. In this letter, an output network is designed as both the filter and the matching network. The circuit is thus significantly simplified. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:323–325, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27305

show abstract

Section: Resultsmentioning

confidence: 99%

“…It is possible to split the inductor L 2 into two hypothetical inductors L X and L 0 as shown in Figure 1, where L 2 = L X + L 0 [2–4]. In this case, C 2 − L 0 is resonant at the fundamental operating frequency, and L X corresponds to the “excessive” inductance of L 2 .…”

Section: Introductionmentioning

confidence: 99%

High‐efficiency wideband class‐E PA with reduced circuit elements

Zhou¹,

Morris²,

Watkins³

et al. 2012

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…The filter topology was chosen as T topology instead of Pi topology which gives an open termination for the harmonics. Further details about the realizations of the amplifier can be found in [3].…”

Section: Band-pass Filter and Output Matching Designmentioning

confidence: 99%

“…A broadband SMPA designed for class-E operation has previously been designed and fabricated at TU-Berlin [3]. It is state of the art with regards to fractional bandwidth (BW/f 0 ), power and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Broadband Gan Switch Mode Class-E Power Amplifier

Tanany¹,

Sayed²,

Boeck³

2013

PIER Letters

Self Cite

View full text Add to dashboard Cite

Switch mode power amplifiers offer high efficiency approaching 100% for an ideal case. This paper discusses the operation mode of broadband switch mode class-E power amplifier designed previously by the authors for UHF applications (600-1000 MHz). A method to extract the waveforms at the die reference plane from the time domain analysis using 50 Ω environment systems is discussed. It has been observed that the designed class-E power amplifier operation was not maintained ideally over the entire band; however, it was operating close to the class-E operation.

show abstract

“…In designing the class-E, the high quality factor of a resonant network has a limited frequency response. In some studies [7][8][9], the series LC resonator has been substituted by low pass or band pass matching networks to solve this limitation. Furthermore, the loaded quality factor of the resonant circuit has been reduced sufficiently to extend bandwidth operations and to reduce the sensitivity of amplifier performance to the values of resonator circuit elements [10].…”

Section: Introductionmentioning

confidence: 99%

Design of a Highly Efficient Broadband Class-E Power Amplifier with a Low Q Series Resonance

Dang-Duy¹,

Ha‐Van²,

Kim³

et al. 2016

Journal of electromagnetic engineering and science

View full text Add to dashboard Cite

This work presents a method used for designing a broadband class-E power amplifier that combines the two techniques of a nonlinear shunt capacitance and a low quality factor of a series resonator. The nonlinear shunt capacitance theory accurately extracts the value of class-E components. In addition, the quality factor of the series resonator was considered to obtain a wide bandwidth for the power amplifiers. The purpose of using this method was to produce a simple topology and a high efficiency, which are two outstanding features of a class-E power amplifier. The experimental results show that a design was created using from a 130 to 180 MHz frequency with a bandwidth of 32% and a peak measured power added efficiency of 84.8%. This prototype uses an MRF282SR1 MOSFET transistor at a 3-W output power level. Furthermore, a summary of the experimental results compared with other high-efficiency articles is provided to validate the advantages of this method.Key Words: Broadband, Class-E Amplifier, High PAE, Nonlinear Capacitance. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

show abstract

Broadband GaN switch mode class E power amplifier for UHF applications

Cited by 27 publications

References 3 publications

High‐efficiency wideband class‐E PA with reduced circuit elements

High‐efficiency wideband class‐E PA with reduced circuit elements

Analysis of Broadband Gan Switch Mode Class-E Power Amplifier

Design of a Highly Efficient Broadband Class-E Power Amplifier with a Low Q Series Resonance

Contact Info

Product

Resources

About