Abstract
In this paper, a dual-level and dual-band Class-D CMOS power amplifier (PA) in a standard 0.18μm CMOS process is presented for Internet of Things (IoT) applications. With a tunable power amplifier stages controlled by a single bit switch, the proposed PA enables the dual-level operation, low and high output power modes. At the high level mode, all the stages are turned on, and at the low level output power mode, the stages are scaled while only part amplifiers work in order to maintain the PAE performance over a wide range of output power levels. Exploiting a tunable band matching network, the PA can also provide dual-band operation. Experimental results indicate that the proposed amplifier provides greater than 20dB gain, 16-19dBm output power at the 600/780MHz bands. The measured maximum efficiencies of the dual-band PA are 36.6% and 46.66% for the low output power mode and high output power mode, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
