A 24/60GHz dual-band millimeter-wave on-chip monopole antenna fabricated with a 0.13-μm CMOS technology

A 24 / 60 GHz dual-band millimeter-wave on-chip antenna fabricated in TSMC 0.13-mum CMOS process is presented here. We design the feeding network by using the coplanar waveguide (CPW) structure. For the dual-band design, there are two major current paths to radiate. To avoid the harmonic frequency band of the low frequency-band, we add two strips to couple the harmonic frequency of the low frequency-band. Besides, the two strips let the higher frequency-band performance better. At this work, the simulator is based 3-D full- wave EM solver, Ansoft HFSS. The on-chip antenna size is 0.76 times 1.045 mm². The bandwidth of the lower band and higher is about 180 MHz and 700 MHz, respectively. The simulated gain is about -9 dB for 24 GHz and about 1 dB for 60 GHz.