Optimization of Octagonal Microstrip Antenna Characteristics Using Defected Ground Structure (DGS) For Wireless Communication

R. A. Firdaus; E. Rahmawati; M. Yantidewi; Dzulkiflih; M. A. Bustomi; F. Oktafiani; R. Ramadani; A. Nikmah

Optimization of Octagonal Microstrip Antenna Characteristics Using Defected Ground Structure (DGS) For Wireless Communication

R. A. Firdaus^*, E. Rahmawati, M. Yantidewi, Dzulkiflih, M. A. Bustomi, F. Oktafiani, R. Ramadani, A. Nikmah

^*Corresponding author for this work

Laboratory of Geophysics

Research output: Contribution to journal › Article › peer-review

Abstract

Microstrip antennas with octagonal geometry are promising for wireless communication due to their compact size, low profile, and cost efficiency, attracting interest for 5G. Existing designs are not optimal for internet distribution. This study applies a T-slot-shaped Defected Ground Structure (DGS) on both sides of the octagonal antenna’s ground plane, enhancing current and electromagnetic distribution, increasing bandwidth, improving impedance matching, and reducing signal reflection. Designed in CST Studio Suite and fabricated for 5G, measurements with a Vector Network Analyzer (VNA) show minimal deviation from simulations. The T-slot octagonal antenna achieved a working frequency of 3.5 GHz, return loss of -41.72 dB, VSWR of 1.016, gain of 1.385 dB, and bandwidth of 430 MHz, showing improved 5G suitability.

Original language	English
Pages (from-to)	606-613
Number of pages	8
Journal	International Journal of Microwave and Optical Technology
Volume	19
Issue number	6
Publication status	Published - Nov 2024

Keywords

Characteristic enchantment
Octagonal antenna
T-slot-shaped
Wireless communication

Cite this

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title = "Optimization of Octagonal Microstrip Antenna Characteristics Using Defected Ground Structure (DGS) For Wireless Communication",

abstract = "Microstrip antennas with octagonal geometry are promising for wireless communication due to their compact size, low profile, and cost efficiency, attracting interest for 5G. Existing designs are not optimal for internet distribution. This study applies a T-slot-shaped Defected Ground Structure (DGS) on both sides of the octagonal antenna{\textquoteright}s ground plane, enhancing current and electromagnetic distribution, increasing bandwidth, improving impedance matching, and reducing signal reflection. Designed in CST Studio Suite and fabricated for 5G, measurements with a Vector Network Analyzer (VNA) show minimal deviation from simulations. The T-slot octagonal antenna achieved a working frequency of 3.5 GHz, return loss of -41.72 dB, VSWR of 1.016, gain of 1.385 dB, and bandwidth of 430 MHz, showing improved 5G suitability.",

keywords = "Characteristic enchantment, Octagonal antenna, T-slot-shaped, Wireless communication",

author = "Firdaus, {R. A.} and E. Rahmawati and M. Yantidewi and Dzulkiflih and Bustomi, {M. A.} and F. Oktafiani and R. Ramadani and A. Nikmah",

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T1 - Optimization of Octagonal Microstrip Antenna Characteristics Using Defected Ground Structure (DGS) For Wireless Communication

AU - Firdaus, R. A.

AU - Rahmawati, E.

AU - Yantidewi, M.

AU - Dzulkiflih,

AU - Bustomi, M. A.

AU - Oktafiani, F.

AU - Ramadani, R.

AU - Nikmah, A.

PY - 2024/11

Y1 - 2024/11

N2 - Microstrip antennas with octagonal geometry are promising for wireless communication due to their compact size, low profile, and cost efficiency, attracting interest for 5G. Existing designs are not optimal for internet distribution. This study applies a T-slot-shaped Defected Ground Structure (DGS) on both sides of the octagonal antenna’s ground plane, enhancing current and electromagnetic distribution, increasing bandwidth, improving impedance matching, and reducing signal reflection. Designed in CST Studio Suite and fabricated for 5G, measurements with a Vector Network Analyzer (VNA) show minimal deviation from simulations. The T-slot octagonal antenna achieved a working frequency of 3.5 GHz, return loss of -41.72 dB, VSWR of 1.016, gain of 1.385 dB, and bandwidth of 430 MHz, showing improved 5G suitability.

AB - Microstrip antennas with octagonal geometry are promising for wireless communication due to their compact size, low profile, and cost efficiency, attracting interest for 5G. Existing designs are not optimal for internet distribution. This study applies a T-slot-shaped Defected Ground Structure (DGS) on both sides of the octagonal antenna’s ground plane, enhancing current and electromagnetic distribution, increasing bandwidth, improving impedance matching, and reducing signal reflection. Designed in CST Studio Suite and fabricated for 5G, measurements with a Vector Network Analyzer (VNA) show minimal deviation from simulations. The T-slot octagonal antenna achieved a working frequency of 3.5 GHz, return loss of -41.72 dB, VSWR of 1.016, gain of 1.385 dB, and bandwidth of 430 MHz, showing improved 5G suitability.

KW - Characteristic enchantment

KW - Octagonal antenna

KW - T-slot-shaped

KW - Wireless communication

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IS - 6

ER -

Optimization of Octagonal Microstrip Antenna Characteristics Using Defected Ground Structure (DGS) For Wireless Communication

Abstract

Keywords

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