20012701.pdf (485.19 kB)
Dual-band circularly polarized stacked sapphire and TMM13i rectangular DRA
journal contributionposted on 2023-02-24, 10:55 authored by Richa Gupta, Garima Bakshi, Aakash Bansal
This paper documents a novel design of dual-band dielectric resonator antenna exhibiting circular polarization at a high-frequency band of (7.85 GHz–7.93 GHz) in addition to linearly polarized lower frequency band of (5.12 GHz–5.49 GHz) using new materials, sapphire, and TMM13i for antenna design. With sapphire and TMM13i being immune to physical change, the novel design is suitable for weather radar applications. The obtained circular polarization reduces signal attenuation. A four-layered structure with sapphire and TMM13i stacked alternatively with aperture coupled feed is presented. Additionally, the corners of the patch have been truncated, and a slot has been etched in order to obtain the dual-band resonance and circular polarization respectively. The design is simulated using Ansys HFSS and fabricated for measurements. The VSWR (Voltage standing wave ratio) is measured to be less than 2 for both the bands. The simulated and measured gains of the antenna are 5.2 dBi and 4.9 dBi, respectively.
- Mechanical, Electrical and Manufacturing Engineering
Published inProgress In Electromagnetics Research M
Pages143 - 153
PublisherThe Electromagnetics Academy
- VoR (Version of Record)
Rights holder© The Electromagnetics Academy
Publisher statementThis paper has been deposited with the permission of The Electromagnetics Academy. The published version can be found at: Richa Gupta, Garima Bakshi and Aakash Bansal, "Dual-Band Circularly Polarized Stacked Sapphire and TMM13i Rectangular DRA," Progress In Electromagnetics Research M, Vol. 91, 143-153, 2020. doi:10.2528/PIERM20012701 http://www.jpier.org/PIERM/pier.php?paper=20012701. All figures within this article are reproduced courtesy of The Electromagnetics Academy.