A coplanar waveguide on-chip RF choke for WLAN RF circuits

Authors


Abstract

A novel on-chip RF choke at 5 GHz is designed and measured for a class A operating Wireless LAN RF power amplifier (PA). The coplanar waveguide (CPW)-based on-chip RF choke is implemented as an alternative component to inductors provided by the 0.35-μm SiGe BiCMOS technology. The CPW RF choke is designed at 5 GHz, and has a length of 1600 μm and loaded with a capacitance of 0.95 pF. The measured impedance of the RF choke at 5 GHz is around 104 Ω. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2530–2534, 2007; Published online in Wiley InterScience (www.interscience.wiley.com) DOI 10.1002/mop.22725

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