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- Title
Additively manufactured frequency selective surface for gain enhancement of sub‐6 GHz monopole antenna.
- Authors
Retnam, Adeline Mellita; Sholampettai Subramanian, Karthikeyan; Perumal, Damodharan
- Abstract
This article demonstrates the advantages of prototyping microwave components using additive manufacturing (AM) technologies. For corroboration, a frequency selective surface (FSS) with meandered square loop and a monopole antenna are manufactured using AM and printed circuit board (PCB) technologies. The performance of these prototypes designed for sub‐6 GHz applications are comparatively analyzed. A parametric study further explicates the high design flexibility supported by AM. The proposed FSS has a unit cell dimension of 0.15λ0 × 0.15λ0 × 0.02λ0, where λ0 stands for free space wavelength at the lower cut‐off frequency. It works as a reflector in the frequency range of 2.96–4.17 GHz. The gain of the monopole antenna manufactured with the same technology is improved using the proposed FSS. The average gain is increased by 3 dBi over the operational frequency range. The proposed FSS was verified with a circuit model and also analyzed for conformal conditions. The measured values of all the AM and PCB prototypes shows good concordance with the simulated response. The results support the positive impact of the rapidly progressing AM technology in future RF prototyping.
- Subjects
FREQUENCY selective surfaces; LOOP antennas; UNIT cell; PRINTED circuits; AMPLITUDE modulation
- Publication
International Journal of RF & Microwave Computer-Aided Engineering, 2022, Vol 32, Issue 11, p1
- ISSN
1096-4290
- Publication type
Article
- DOI
10.1002/mmce.23370