Design of Common-gate with Common-source Active Balun for WiMAX Receiver Front-end
Frederick Ray I. Gomez *
Microelectronics and Microprocessors Laboratory, Electrical and Electronics Engineering Institute College of Engineering, University of the Philippines, Diliman, Quezon City, 1101, Philippines and Central Engineering and Development NPI, Back-end Manufacturing and Technology STMicroelectronics, Inc., Calamba City, Laguna, 4027, Philippines.
Maria Theresa G. De Leon
Microelectronics and Microprocessors Laboratory, Electrical and Electronics Engineering Institute College of Engineering, University of the Philippines, Diliman, Quezon City, 1101, Philippines.
John Richard E. Hizon
Microelectronics and Microprocessors Laboratory, Electrical and Electronics Engineering Institute College of Engineering, University of the Philippines, Diliman, Quezon City, 1101, Philippines.
*Author to whom correspondence should be addressed.
Abstract
This paper presents a design and simulation study of a common-gate with common-source active balun circuit implemented in a standard 90-nm complementary metal-oxide semiconductor (CMOS) process. The active balun design is intended for worldwide interoperability for microwave access (WiMAX) application, with operating frequency of 5.8 GHz and supply voltage of 1 V. Measurements are taken for parameters namely gain difference, phase difference, and noise figure. The common-source active balun design achieved a minimal gain difference of 0.04 dB, phase difference of 180 ± 1.5 degrees, and noise figure of 8.76 dB, which are comparable to past active balun designs and researches. The design eventually achieved a low power consumption of 4.45 mW.
Keywords: Common-gate with common-source active balun, gain difference, phase difference, WiMAX