Substrate Integrated Waveguide Cavity-Backed Wide Slot Antenna for 60-GHz Bands

作者：Gong, Ke^*; Chen, Zhi Ning; Qing, Xianming; Chen, Peng; Hong, Wei

来源：IEEE Transactions on Antennas and Propagation, 2012, 60(12): 6023-6026.

DOI：10.1109/TAP.2012.2213060

• Cavity-backed antenna
• dual-resonance
• slot antenna
• substrate integrated waveguide (SIW)
• 60-GHz band

A wide slot antenna backed by a substrate integrated waveguide (SIW) cavity is presented and investigated for the enhancement of operating bandwidth at 60-GHz band. The 10-dB return loss impedance bandwidth of the antenna increases from 3% to 11.6% with consistent radiation performance as the width to length ratio (WLR) of the rectangular slot cutting from the SIW increases from 0.12 to 0.71. Its dual-resonance operation mechanism is verified by a parametric study. Three 2 x 4 antenna arrays with different slot WLRs are designed and fabricated with a printed circuit board (PCB) process at the 60-GHz bands. The measured results show that the antenna array with slot WLR of 0.71 achieves the gain of 10-12 dBi and the cross-polarization levels of better than 25 dB in both E- and H-planes over the enhanced operating bandwidth of about 11.6%.

• 出版日期2012-12
• 单位东南大学