High-gain and broadband SIW cavity-backed slots antenna for X-band applications
Published online by Cambridge University Press: 11 February 2021
Abstract
Substrate-integrated waveguide (SIW) technology has recently drawn attention to its benefits in the microwave field, such as integration in planar microwave circuits, low manufacturing cost, and high-quality factor compared to other technologies. In this paper, a broadband and high gain SIW cavity-backed L-shaped slot antenna structure has been designed and made for X-band applications. Three pairs of L-shaped half-wave resonators are placed on the lower wall of the cavity (backed-slots) to further expand bandwidth and improve gain. The final antenna designed operates on a band ranging from 9.4 to 10.5 GHz with a bandwidth of 11%. Moreover, the gain reaches a value of 9.5 dBi. The final antenna is realized on a Rogers RT/Duroid 5870 substrate. The gain, the reflection coefficient, and the radiation patterns are measured and compared to the EM simulation results and a very good agreement is obtained. The proposed cavity-backed L-shaped slot antenna gives a good compromise between a high gain and a large bandwidth.
- Type
- Antenna Design, Modelling and Measurements
- Information
- International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 10 , December 2021 , pp. 1078 - 1085
- Copyright
- Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association
References
- 2
- Cited by