Energy efficiency in CMOS power amplifier designs for ultralow power mobile wireless communication systems

Mariappan, Selvakumar and Rajendran, Jagadheswaran and Noh, Norlaili Mohd and Ramiah, Harikrishnan and Abd Manaf, Asrulnizam (2020) Energy efficiency in CMOS power amplifier designs for ultralow power mobile wireless communication systems. Turkish Journal of Electrical Engineering and Computer Sciences, 28 (1). pp. 1-16. ISSN 1300-0632, DOI

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Wireless communication standards keep evolving so that the requirement for high data rate operation can be fulfilled. This leads to the efforts in designing high linearity and low power consumption radio frequency power amplifier (RFPA) to support high data rate signal transmission and preserving battery life. The percentage of the DC power of the transceiver utilized by the power amplifier (PA) depends on the efficiency of the PA, user data rate, propagation conditions, signal modulations, and communication protocols. For example, the PA of a WLAN transceiver consumes 49% of the overall efficiency from the transmitter. Hence, operating the PA with minimum power consumption without trading-off the linearity is vital in order to achieve the goal of fully integrated system-on-chip (SoC) solution for 4G and 5G transceivers. In this paper, the efficiency in CMOS PA is discussed through the review of multifarious efficiency enhancement techniques in CMOS PA design. This is categorized into the review of efficiency in fundamental classes of PA in which Class E achieves the highest efficiency of 67%, followed by complex architectures utilized to enhance the efficiency level of the PA in which the outphasing architecture achieved the highest efficiency of 60.7%.

Item Type: Article
Funders: Collaborative Research in Engineering, Science and Technology (CREST) (304/PELECT/6050378/C121), Universiti Sains Malaysia (1001/PCEDEC/8014079)
Uncontrolled Keywords: Efficiency; Radio frequency; Power amplifier; CMOS; Wireless; 4G; 5G; System-on-chip
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 30 May 2023 06:30
Last Modified: 30 May 2023 06:30

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