A BiCMOS Lumped Element Model for a Millimeter-Wave Dipole Antenna

ABSTRACT An analytical technique to model an electromagnetic center‐fed, half‐wavelength dipole antenna operating in the 57–64 GHz unlicensed frequency band with a lumped element model has been proposed, designed, prototyped using a 130 nm BiCMOS technology process and measured. The model based on the Foster canonical form for electrical antennas is improved to include substrate and high‐frequency parasitic effects. Good correlation of ultrawideband inductive and capacitive operation is achieved with the improved circuit. Dipole performance is characterized by a S11 of −12.81 dB and a voltage standing wave ratio (VSWR) of 1.66:1 at 60 GHz. The equivalent millimeter‐wave circuit performance is S11 = −12.7 dB with VSWR of 1.61:1 at 60 GHz. Measured performance of S11 = −20.6 dB with VSWR of 1.20:1 at 60 GHz was recorded. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2955–2965, 2013