A miniaturized Wilkinson power divider with CMOS active inductors
- 31 October 2005
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters
- Vol. 15 (11) , 775-777
- https://doi.org/10.1109/lmwc.2005.859020
Abstract
A miniaturized Wilkinson power divider implemented in a standard 0.18-/spl mu/m CMOS process is presented in this letter. By using active inductors for the circuit implementation, a significant area reduction can be achieved due to the absence of distributed components and spiral inductors. The power divider is designed at a center frequency of 4.5GHz for equal power dividing with all ports matched to 50/spl Omega/. Drawing a dc current of 9.3mA from a 1.8-V supply voltage, the fabricated circuit exhibits an insertion loss less than 0.16dB and a return loss better than 30dB at the center frequency while maintaining good isolation between the output ports. The active area of the miniaturized Wilkinson power divider is 150/spl times/100/spl mu/m/sup 2/, which is suitable for system integration in monolithic microwave integrated circuit (MMIC) applications.Keywords
This publication has 6 references indexed in Scilit:
- 180 degrees lumped element hybridPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Design and implementation of micromachined lumped quadrature (90°) hybridsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Miniaturized Wilkinson power dividers utilizing capacitive loadingIEEE Microwave and Wireless Components Letters, 2002
- Design and performance of improved lumped-distributedWilkinson divider topologyElectronics Letters, 2001
- VHF CMOS integrated active inductorElectronics Letters, 1996
- Miniaturized Wilkinson power divider using three-dimensional MMIC technologyIEEE Microwave and Guided Wave Letters, 1996