Cahyasiwi, Dwi Astuti (2024) Study on Defected Ground Structure Models with Miniaturized Patches for Broadband Wireless Systems. Journal of Communications, 19 (3). pp. 168-174. ISSN 1796-2021
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Abstract
This study presents a Defected Ground Structure
(DGS) mechanism and improves its antenna properties.
Three DGS models are discussed: two including a single
antenna and one including an array microstrip antenna
design. The microstrips are designed for broadband wireless
frequencies of 2.1 GHz (5G Technology) for a single antenna,
and 5.8 GHz (wireless local area network) for an array
antenna. These frequencies are achieved using three shapes
of DGS in the simulations and the results are suitable for
broadband applications. The antenna patches are
rectangular with two types of DGS, and an array circular
with one type of DGS. The results show the DGS provides
better bandwidth and gain for a single antenna. Nevertheless,
DGS achieves gain enhancement for an array antenna and
this design yields a miniaturized array antenna of 69.92%
and 73.47% in width and length, respectively. The three
shapes of DGS have different designs: rectangular patch
antenna with frame-shaped DGS, rectangular antenna with
rectangular slot-shaped DGS, and array circular antenna
with rectangular slots of DGS. A rectangular patch antenna
with frame-shaped DGS and an array circular antenna with
rectangular slots of DGS yields bandwidths of 533 MHz and
327 MHz. The single antenna improves the fractional
bandwidth by 25.38% with a miniaturized patch. Nonetheless,
the array circular antenna with DGS obtains a gain
enhancement of 16 dB greater than the initial array without
DGS.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Fakultas Teknik > Teknik Elektro |
| Depositing User: | Dwi Astuti Cahyasiwi |
| Date Deposited: | 12 Aug 2024 02:28 |
| Last Modified: | 12 Aug 2024 02:28 |
| URI: | http://repository.uhamka.ac.id/id/eprint/34048 |
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