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ABSTRACT
Multimode multiband (MMMB) connectivity has become a de facto requirement for smartphones in order to accommodate the various different frequencies, bandwidths, output power, and modulation schemes. In this work, a two-stage single-chip MMMB power amplifier (PA) with multiple gated transistor technique has been designed to obtain dual-mode output power options, with its input matching and intermediate matching networks made tunable to enable switching of the PA output between low-band and high-band frequencies. In the low-band region, the PA offers 195 MHz of operating bandwidth starting from the frequency of 770 up to 965 MHz, covering the long term evolution (LTE) bands 5 and 8, with output saturated power of 27.3 dBm and peak power added efficiency (PAE) of 47.4%. In the high-band region, the PA has 900 MHz bandwidth starting from the frequency of 1.3 up to 2.2 GHz, covering the LTE bands 1, 2, and 3, with output saturated power of 27.9 dBm and peak PAE of 45.3%. The achieved ACPRs are −40 and −42 dBc in the low-band and high-band, respectively, which are well within the LTE linearity specifications. By using a low-cost CMOS process, the proposed MMMB PA has potential applications in the system-on-chip (SoC) integration of wireless transceiver.
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Notes on contributors
Veeraiyah Thangasamy
Veeraiyah Thangasamy is a lecturer in School of Engineering at Asia Pacific University, Kuala Lumpur, Malaysia. He received the BEng degree in electronics and communication from Madurai Kamaraj University, India in 1993 and MEng degree in telecommunication from Universiti Malaya, Malaysia, in 2011. He is a chartered engineer from the Engineering Council, UK, and also a member of IEEE, IET, and IEICE. He is currently working toward the PhD degree at Universiti Putra Malaysia (UPM). His research interests include VLSI design and RF circuits for mobile wireless communication, especially MMMB PA design.
E-mail: [email protected]
Noor Ain Kamsani
Noor Ain Kamsani received the BS degree in electrical and electronics engineering from Universiti Tenaga Nasional (2009) and PhD in electronics engineering from the University of Glasgow (2011). She was a design engineer at Intel Malaysia and currently, she is a senior lecturer of electrical and electronics engineering at UPM. She has been active in the area of integrated circuits design and test for over eight years and actively serving IEEE Circuits and Systems Society Malaysia Chapter as an honorary secretary and IEEE Student Branch UPM as a counselor. She is also the program manager for Texas Instruments University Program on analog electronics test and product engineering at UPM. Her current research involves study of advanced devices in integrated circuits, high-speed design, and product testability
E-mail: [email protected]
Mohd Nizar Hamidon
Mohd Nizar Hamidon is an associate professor at Electrical and Electronic Engineering Department and deputy director of Institute of Advanced Technology at UPM. He received the BSc degree in physics, MSc in microelectronics from Univesiti Malaya (Malaysia) and Universiti Kebangsaan (Malaysia) in 1995 and 2001, respectively, and finally, his PhD in electronics and electrical engineering from the University of Southampton (UK) in 2005. He joined UPM after BSc at Matriculation Centre for five years before becoming UPM engineering faculty member in 2000 until now, where he in charge of research program at the department and faculty. Due to his outstanding research activities, UPM had appointed him as a head of Functional Devices Laboratory at Institute of Advanced Technology in early 2012 but later as a deputy director in the same year at the same institute. He has published over 100 technical papers and a number of book chapters related to his research area. He has been the organizing chair and technical member for several IEEE conferences and at the moment as a chapter chair for IEEE Electron Device Malaysia Chapter.
E-mail: [email protected]
Shaiful Jahari Hashim
Shaiful Jahari Hashim is currently an associate professor at Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra Malaysia. He received his PhD from Cardiff University, UK (2011), MSc from Universiti Kebangsaan Malaysia (2003), and BEng from University of Birmingham, UK (1998), in the field of electrical and electronics engineering. His research interests are embedded system, cloud computing, and wireless measurement system.
E-mail: [email protected]
Zubaida Yusoff
Zubaida Yusoff received her BSc in electrical and computer engineering (cum laude with distinction) and MSc in electrical engineering from The Ohio State University, USA, in 2000 and 2002, respectively. She worked with Telekom Malaysia International Network Operation in 2002 before she joined Multimedia University, Malaysia, as a lecturer in 2004. She continued her studies at Cardiff University, Wales, UK, in 2008 and received PhD degree in 2012. She currently resumes her job as a senior lecturer at Multimedia University. Her current research interest is in the area of analog/mixed signal circuit design and microwave PA system.
E-mail: [email protected]
Muhammad Faiz Bukhori
Muhammad Faiz Bukhori is a senior lecturer at the Universiti Kebangsaan Malaysia (UKM), and an associate fellow of the Institute of Microengineering and Nanoelectronics of UKM. After a working stint for Motorola (Malaysia), he then obtained a PhD degree in electronics engineering from University of Glasgow in 2011. He has published on simulation of semiconductor devices, advanced CMOS circuit designs, and engineering education. He was also a research team member engaged by the Academy of Sciences Malaysia to advise on national policies for the sustainable development of Malaysia's electrical and electronics sector.
E-mail: [email protected]