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4.0-5.5 GHz tunable power splitter RFIC using active inductors

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2 Author(s)
You Zheng ; SkyWave Mobile Commun., Ottawa, ON, Canada ; Saavedra, C.E.

A highly compact and tunable four-port power splitter was designed and fabricated in 180 nm CMOS process. Instead of distributed transmission lines, and LC lumped-element equivalent was selected for on-chip realization of the power splitter. To further reduce the varied by changing the bias current of the gyrator circuit. Experimental tests reveal that the power split is 6 dB and the center frequency can be tuned from 4.0 GHz to 5.5 GHz. The chip was biased from a 3 V dc voltage supply and consumes a maximum of 69 mW of power.

Published in:

Electronics, Circuits and Systems (ICECS), 2012 19th IEEE International Conference on

Date of Conference:

9-12 Dec. 2012