A dual‐band high‐gain EBG resonator antenna fed by dipole in CMOS process

Abstract

A high-gain dual-band electromagnetic band-gap (EBG) resonator antenna (ERA) which is suitable for 60 GHz short-range communication and 77 GHz vehicle collision avoidance application is proposed. The EBG is constructed by two identical slabs over a fully reflective ground plane. A dipole in Taiwan Semiconductor Manufacturing Company (TSMC) 65 nm process is employed to serve as a feeder of the resonator. By combining the frequency resonances of the EBG and the feeding chip fabricated on the LTCC substrate, the proposed ERA obtains dual-band performance. Furthermore, the proposed ERA achieves a high gain by designing two slabs to have phase shifts introduced by multiple reflections of the wave between the ground and slabs at double certain frequency points. Finally, the prototype of the antenna is simulated by High Frequency Structure Simulator (HFSS) and good agreement was achieved between simulated and measured data. The results demonstrate that it has a 10-dB return loss bandwidth of 57.7 to 62.1 GHz and 75.2 to 77.4 GHz. Radiation efficiencies are 27.5% and 60% with 8.3 dBi gain and 14.4 dBi gain at 60 and 77 GHz, respectively.