https://orcid.org/0000-0003-4704-0803
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Abstract
Increasing data capacity requirements in cellular networks have raised the demand of low-cost and energy-efficient small cells to reduce the overall operating cost of the access network. This paper reports on the development of an energy-efficient and low-cost power amplifier design for TD-LTE outdoor pico base station. The proposed design of the power amplifier uses double-stage balanced configuration by exploiting the latest available process technologies on low-power devices and avoids commonly used a high-power LDMOS transistor. We examined the conceptual design of the power amplifier through ADS and SystemVue simulations and subsequently validated through practical implementation. The contribution of this paper is that the proposed design of pico base station operates at 12 V DC input supply rather than conventional −48 V which avoids the requirement of −48 V to 28 V DC–DC converter. As a result, the overall power efficiency of the proposed power amplifier for outdoor pico base station is increased by 2.7% in addition to the reduction of cost by 40%. Due to the light weight and small size, IP-65 compliant outdoor pico BS with proposed power amplifier can be contained in a single box.
Additional information
Notes on contributors
Brijesh Shah
Brijesh Shah has received his MTech from IIT, Kanpur (India) in information systems in 2003. He was involved in development for CDMA, WiMAX and LTE base station till 2014. Presently, he is leading RF Quality Assurance team in Reliance Jio Infocomm, Mumbai, India. His areas of interest include RF circuit design and optimization of LTE Access network. He has two international publications in his name and has submitted five patents. Corresponding author. Email: [email protected]
Gaurav Dalwadi
Gaurav Dalwadi has received his MTech from DA-IICT, Gandhinagar, Gujarat (India). Currently, he is working as senior design engineer in Reliance Jio Infocomm, Mumbai, India. His research interests include LTE, massive MIMO, small cell and RF design. He has three national and international publications and one patent in his name. Email: [email protected]
Hardip Shah
Hardip Shah has received his PhD from Dharmsinh Desai University, Nadiad (India) in 2016. He has been with Dharmsinh Desai University since 2000 and presently working as an associate professor. His research interests are signal processing and wireless communications. He has around ten international publications in his name. Email: [email protected]
Nikhil Kothari
Nikhil Kothari has received his PhD from Dharmsinh Desai University, Nadiad (India). Presently, he is serving as a head of the department of Electronics and Communication at the same university. He has authored around ten national and international publications. His areas of interest are digital communication, networking and wireless technologies. Email: [email protected]