This paper presents a 45GHz on-chip antenna for Q-LINKPAN applications. The antenna has a simple triangle radiating patch that is fed by a 50-modified coplanar waveguide (CPW) structure. Implemented results denote this antenna has a favorable impedance bandwidth from 40-50 GHz, where nearly omni-directional radiation patterns and stable gain are also obtained and shown. Besides, it has a very compact size of 2.5mm × 2.5mm × 0.26mm, which is fabricated by using a standard 0.18-m CMOS process. Measured results validate the wide frequency response meets the Q-LINKPAN standard requirement, which is a good candidate for mobile high data rate communication systems.
A novel printed 60-GHz antenna for MIMO/diversity applications is presented in this paper. This antenna consists of two coplanar waveguides (CPW) feeding triangle-shaped radiating element for orthogonal radiation pattern and a rectangle stub is inserted at 45°between them to achieve high isolation. The antenna is prototyped using RO5880 printed-circuit board. Experimental result shows that the antenna impedance bandwidth for S11<-10dB is 54.5GHz to 63.1 GHz including the majority 60-GHz working band. The compact size of 5.5mm*5.5mm indicates that the proposed antenna is a candidate for mobile WPAN systems.
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