A Compact Millimeter-Wave Array Element Design Combining Integrated Feed and External Taper Slot Structure

Abstract

A compact composite antenna to obtain high directivity for millimeter-wave communication is proposed. The proposed antenna can be easily integrated with IC with low cost by simply attaching PCB planar tapered slot antenna(TSA)to on-chip antenna, providing increased directivity. Feed slot on TSA receiving electric fields from primary antenna is optimized to obtain good impedance matching and low side-lobe level. Simulated E-plane pattern shows 10.9 dB of directivity which is 7.5 dB higher than stand-alone dipole antenna, while H-plane pattern maintains relatively wider beamwidth characteristic for wide beam-steering range in phase array system.