Enhancing Radiation Performance of a 0.18 µm CMOS 60 GHz On-chip Double-Slot Vivaldi Antenna

Authors

Elsayed Ibrahim Elsaidy Mr., Faculty of Engineering Tanta University, Tanta, Egypt.Follow
Amr H. Hussein Prof.Dr., Faculty of Engineering Tanta University, Tanta, Egypt.Follow
Mustafa M. Abd Elnaby Prof. Dr., Faculty of Engineering Tanta University, Tanta, Egypt.Follow

Abstract

This paper presents the design of a 60-GHz double-slot Vivaldi antenna (DSVA) using standard 0.18 µm CMOS technology. The antenna's two slots are uniformly excited in both amplitude and phase by a coplanar waveguide (CPW) power divider. A double-Y balun feeding structure is also used to transition from the CPW to the coplanar slot line (CPS). Two techniques are investigated to enhance the antenna's radiation characteristics. The first technique involves incorporating equal corrugations along the edges of the flare aperture, resulting in a significant gain enhancement of 0.9 dBi and an improvement in radiation efficiency by 7%. The second technique entails the construction of a planar arc reflector to suppress the back lobe, further enhancing gain by 0.7 dBi and radiation efficiency by 6%. The overall antenna dimensions are compact, measuring 870 µm × 960 µm. It exhibits an end-fire radiation pattern with a simulated peak gain and radiation efficiency of + 0.4 dBi and 38%, respectively. Furthermore, the measured reflection coefficient indicates that the impedance bandwidth of the DSVA spans from 50 to 70 GHz.

Recommended Citation

Elsaidy, Elsayed Ibrahim Mr.; Hussein, Amr H. Prof.Dr.; and Abd Elnaby, Mustafa M. Prof. Dr. (2024) "Enhancing Radiation Performance of a 0.18 µm CMOS 60 GHz On-chip Double-Slot Vivaldi Antenna," Journal of Engineering Research: Vol. 8: Iss. 4, Article 12.
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss4/12