Compact Wilkinson Power Divider Using Composite Right/Left-Handed Transmission Line on CMOS Process

This paper shows the design and analysis of CMOS Wilkinson power divider using composite right/left-handed transmission lines. The effects of lossy components in the circuit are also analyzed. The circuit is then implemented on a 0.18-μm CMOS process. The return losses are less than −16 dB, the isolation is better than −26 dB, and the insertion losses are better than −5.15 dB at the frequencies of interest. Its chip size is 0.5 mm² (9.9e⁻⁵λo²) including testing pads.