Design of a broadband current mode class-D power amplifier with harmonic suppression

Khan, Hashim Raza; Qureshi, Abdul Raheem; Zafar, Faiza; Wahab, Q.

doi:10.1007/s10470-016-0796-z

Cited by 2 publications

(3 citation statements)

References 15 publications

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“…Other technologies such as GaAs HBT and GaN are able to report higher efficiencies and output power on the expense of cost and integration capabilities such as in [4], [13] at lower frequency bands. Overall, we are able to report the best performance at RF frequencies as high as 28 GHz compared to similar work reporting compatible efficiencies at 2.25 GHz in [10], [11] and better efficiency compared to other switching PAs near 28 GHz in [18]- [20]. To the best of our knowledge, no other work in literature reports similar performance at similar frequency bands.…”

Section: A Comparison With State-of-the-art Cmcd Passupporting

confidence: 63%

“…Inverse Class-D PA can also provide higher bandwidth compared to other SMPAs in case a wideband input matching is used [9]. CMCD also has the advantage of having the output drain capacitance absorbed into the output matching network allowing it to operate at higher frequencies compared to other SMPAs along with a relatively simple output matching network [10]. Some work in literature as in [4], [10]- [14] have implemented CMCD PAs with various CMOS technology or III-V technologies at lower frequencies.…”

Section: Introductionmentioning

confidence: 99%

“…CMCD also has the advantage of having the output drain capacitance absorbed into the output matching network allowing it to operate at higher frequencies compared to other SMPAs along with a relatively simple output matching network [10]. Some work in literature as in [4], [10]- [14] have implemented CMCD PAs with various CMOS technology or III-V technologies at lower frequencies. This work will utilize the high power capabilities of 22nm FDSOI technology with high f max of 371 GHz (NFET) at RF frequencies due to reduced parasitic to the substrate [15] along with the capability of CMCD to operate at high frequencies compared to other SMPAs.…”

Section: Introductionmentioning

confidence: 99%

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A 28-GHz Cascode Inverse Class-D Power Amplifier Utilizing Pulse Injection in 22-nm FDSOI

et al. 2020

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Current Mode Class-D (CMCD) Power Amplifiers are of particular interest in outphasing transmitters or Doherty configuration. This is because the output capacitance can be absorbed in the RLC output matching network and 100% theoretical efficiency. In this paper, a 28 GHz current mode (inverse) Class-D power amplifier was simulated, implemented, and measured in 22nm FDSOI. In order to overcome the breakdown voltages of the devices, the amplifier employs a stacked topology, which enables higher output powers and efficiency. The stacked transistors are also pulse injected to further increase the efficiency. Measurement results shows a peak PAE of 46%, peak drain efficiency (DE) of 71% and a saturated output power of 19 dBm. The implemented CMCD PA reports the best performance in literature compared to other CMOS based CMCD PAs.INDEX TERMS Current mode class-D, FDSOI CMOS, high efficiency, power added efficiency (PAE), power amplifier (PA), stacking.

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Section: A Comparison With State-of-the-art Cmcd Passupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A 28-GHz Cascode Inverse Class-D Power Amplifier Utilizing Pulse Injection in 22-nm FDSOI

et al. 2020

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Efficient Distributed Wireless Power Transfer System for Multiple Wearable Sensors through Textile Coil Array

Lee

Lim

et al. 2023

Sensors

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When it is necessary to detect various physiological signals of the human body, clothing embroidered with near-field effect patterns can be used as a long-term power supply medium to supply power to long-distance transmitters and receivers to form a wireless power supply system. The proposed system uses an optimized parallel circuit to achieve a power transfer efficiency of more than five times higher than that of the existing series circuit. The power transfer efficiency of simultaneously supplying energy to multiple sensors is increased higher than five times and even more when only one sensor is coupled. When powering eight sensors at the same time, the power transmission efficiency can reach 25.1%. Even when eight sensors powered by the coupled textile coils are reduced to one, the power transfer efficiency of the whole system can reach 13.21%. Additionally, the proposed system is also applicable when the number of sensors ranges from 2 to 12.

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Design of a broadband current mode class-D power amplifier with harmonic suppression

Cited by 2 publications

References 15 publications

A 28-GHz Cascode Inverse Class-D Power Amplifier Utilizing Pulse Injection in 22-nm FDSOI

A 28-GHz Cascode Inverse Class-D Power Amplifier Utilizing Pulse Injection in 22-nm FDSOI

Efficient Distributed Wireless Power Transfer System for Multiple Wearable Sensors through Textile Coil Array

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