DUAL BAND COMPACT MICROSTRIP PATCH ANTENNA WITH DEFECTED GROUND STRUCTURE (original) (raw)
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Dual Band Microstrip Patch Antenna with Defected Ground Structure for WiMAX and 5G Applications
In this paper a Dual Band Microstrip Patch Antenna with U-shaped Defected Ground Structure at 5.9 GHz and 27 GHz is designed and analyzed to cater wireless applications. The wideband behavior of the antenna is achieved by inserting U-shape DGS structure in the ground plane. The parameters such as gain, reflection coefficient (S11), Voltage Standing Wave Ratio (VSWR), radiation pattern, and percentage bandwidth is evaluated to measure antenna performance. Here two frequencies are considered for wireless applications. One is at 5.9 GHz for Wi-Fi as well as Wi-Max applications. The second is at 24.4 GHz and 27 GHz for 5G network applications. The High-Frequency Structure Simulator tool is used to simulate the proposed antenna. Here, RT 5880 Duroid material of thickness 1.6 mm with a relative dielectric constant of 2.2 and substrate size of 36 mm x 40 mm with line feeding technique is considered for experimentation. From the simulation results, it is observed that the antenna achieves a...
2014
In this paper, we present a novel planar rectangular microstrip-fed patch antenna for 2.4 GHz and 5.5 GHz. This configuration radiates at 2.43GHZ (2.27‐2.55 GHz) and 5.52 GHz (5.14‐5.90 GHz) for 2.4, 5.2 and 5.8GHz WLAN bands adopting IEEE 802.11b, IEEE 802.11e and IEEE 802.11a WLAN standards, respectively. The proposed antenna is designed and simulated using CST Microwave Studio 2012 electromagnetic solver based on Finite Integration Technique. The antenna utilizes an H‐shaped defected ground structure (HSDGS) cell on the ground plane which has a triangular cut on one side for dual-band properties. The effect of different dimensions of HSDGS on return loss is also studied. The condensed size, low cost, ease of fabrication, large bandwidth and excellent radiation parameters in comparison with earlier reported designs are the advantages of the proposed antenna. Further the simulated parameters like gain, bandwidth, VSWR, and return loss are in good conformity with ISM (Industrial Sci...
2014
In this paper, we present a novel planar rectangular microstrip-fed patch antenna for 2.4 GHz and 5.5 GHz. This configuration radiates at 2.43GHZ (2.27‐2.55 GHz) and 5.52 GHz (5.14‐5.90 GHz) for 2.4, 5.2 and 5.8GHz WLAN bands adopting IEEE 802.11b, IEEE 802.11e and IEEE 802.11a WLAN standards, respectively. The proposed antenna is designed and simulated using CST Microwave Studio 2012 electromagnetic solver based on Finite Integration Technique. The antenna utilizes an H‐shaped defected ground structure (HSDGS) cell on the ground plane which has a triangular cut on one side for dualband properties. The effect of different dimensions of HSDGS on return loss is also studied. The condensed size, low cost, ease of fabrication, large bandwidth and excellent radiation parameters in comparison with earlier reported designs are the advantages of the proposed antenna. Further the simulated parameters like gain, bandwidth, VSWR, and return loss are in good conformity with ISM (Industrial Scie...
Dual Band Slotted Microstrip Patch Antenna with Defected Ground Structure
This microstrip patch antenna for dual band frequency is designed with the help of defected ground structure to obtain a patch antenna with small dimensions and sufficient bandwidth as compared to conventional patch antenna .The effect of defected ground structure is shown in this paper. This antenna has dual bands at frequencies around 3.75GHZ and 6.5GHz.
IJERT-Analysis and Design of Microstrip Patch Antenna with Defected Ground Structure
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/analysis-and-design-of-microstrip-patch-antenna-with-defected-ground-structure https://www.ijert.org/research/analysis-and-design-of-microstrip-patch-antenna-with-defected-ground-structure-IJERTV3IS060888.pdf An analysis of resonant behavior of a microstrip patch antenna with defected ground structure (DGS) has been presented in this paper. It is observed that a size reduction of 56.68% has been achieved by taking out an 'I' shape slot from both the patch and the ground plane. As a result, this new antenna, exhibits multiband behavior and better resonant characteristics than its original structure. The proposed antenna not only has characteristics of good radiation, but also has an advantage of low cost and small size for S-band, C-band and X-band wireless applications.
International journal of electrical & electronics research, 2024
In this paper a comprehensive comparative study of three distinct microstrip patch antenna (MPA) designs, each optimized for the sub-6 GHz applications, is presented. The initial design phase utilized a Rogers RT 5880 substrate with a permittivity (εr1) of 2.2 and a thickness(H1) of 1.42 mm. The proposed model achieved a resonance band ranging from 4.8 to 7 GHz, with a bandwidth of 2.2 GHz and a return loss (S11) of-20 dB. Subsequent enhancements involved integrating a Barium Strontium Titanate (BST) thin film (εr2 = 250, thickness(H2) = 0.005 mm), effectively shifting the operational band to 3.5-5.3 GHz. The final design iteration, which incorporated both BST and a Defective Ground Structure (DGS), represented a substantial advancement, achieving wideband operation from 1.8 to 6 GHz, expanding the bandwidth to 4.2 GHz, and improving the S11 to-25 dB. This integration also resulted in a compact antenna size of 30 x 26.5 x 1.42 mm³. These findings underscore the synergistic impact of BST and DGS in enhancing MPA design, marking a significant progression in antenna technology, vital for a range of wireless communication.
Microstrip Patch Antenna with Defected Ground for L, S and C Band Applications
The paper presents microstrip patch antenna with defected ground for various wireless applications. The antenna shows multiband behavior along with satisfactory values of performance parameters. The antenna is designed with FR4 epoxy substrate having relative permittivity (εr) = 4.4 with compact size of 60 x 70 x 1.58 mm 3 with 50 ohm microstrip line feed. Rectangular and circular slots are subtracted from reduced ground surface. Various rectangular slots are also subtracted from the patch to obtain better results. Simulated results exhibits three operational bands that cover various frequencies like 1.6 GHz, 2.54 GHz and 5.90 GHz used for mobile Wi-Max, direct to home services and satellite communication for uplink frequency. Performance parameters of antenna like Return loss (RL), radiation pattern, VSWR and Gain (G) are simulated using HFSS software. The simulation results of the planned design with and without reduced ground along with different substrate materials like modified epoxy, polyamide, arlon AD430 (tm) and polyimide quartz are analyzed and compared. Also the results with and without rectangular slots on the patch are analyzed but the best outcomes are obtained by defected ground based microstrip patch antenna with FR4 epoxy substrate material of height 1.58 mm. The antenna shows the gain of 14.95 dB along with return loss-16.3 dB and VSWR 1.35 at 1.6 GHz resonant frequency. Antenna also shows the bandwidth of 1126 MHz covering wideband frequency response. Also antenna size is reduced by 85% with deflective ground surface. Frequency swings to minor side by introducing various rectangular slots on both sides of the patch. The antenna operates from 1.6 GHz to 6.2 GHz covering L, S and C band applications. The simulated results are analyzed and presented in this paper.
Design of Dual Band Rectangular Microstrip Antenna with C-Shaped Defected Ground Structure
International Journal of Computer Applications, 2014
In this research paper, the design of C-shaped Defected Ground Structure (DGS) antenna is proposed to realize dualband characteristics for C-band and X-band applications. The proposed antenna consists of C-shaped slot incorporated in ground plane which resonates at two different frequencies (f r1 and f r2) of 7.41 GHz and 9.28 GHz which lie in C-band and X-band respectively. A very good return loss (S 11) of-30.79 dB and-40.75 dB are obtained at first and second resonant frequencies respectively for C-shaped DGS antenna. The Bandwidth of C-shaped DGS antenna is increased by 825 MHz and 1182.8 MHz respectively at two different bands than the bandwidth of the Conventional Rectangular Microstrip Patch Antenna (CRMPA). Also VSWR is much improved with C-shaped DGS antenna. The comparison of simulated results of proposed and CRMPA has also been presented in this paper. The main contribution of this paper is the miniaturization of ground plane of 23% using C-shaped DGS which is very much encouraging.
Miniaturized Microstrip Patch Antenna with Defected Ground Structure
Progress In Electromagnetics Research C, 2014
The aim of this work is to miniaturize a microstrip patch antenna resonating at 3 GHz. For this purpose, defected ground structure (DGS) has been employed to shift the resonance frequency of an initial microstrip antenna from 5.7 GHz to 3 GHz by disturbing the antenna's current distribution. The proposed DGS is incorporated in the ground plane under the patch antenna to improve its performances. Finally, a miniaturization up to 50%, with respect to the conventional microstrip antenna, is successfully accomplished. A prototype of the antenna was fabricated with the FR4 substrate and tested. The measurements results were in good agreement with simulation results.
Triple-band antenna with defected ground structure (DGS) for WLAN/WiMAX applications
Journal of Physics: Conference Series
This paper presents a triple-band rectangular patch antenna that can be operated in three different resonance frequencies of 2.40 GHz, 3.50 GHz, and 5.80 GHz for WLAN and WiMAX applications. The FR-4 substrate with dielectric constant of 4.3 is used, with the dimensions of the substrate 34×30×1.6mm 3. The performance of the rectangular patch antenna has been simulated and measured and the proposed patch antenna operates at three different resonance frequencies of WLAN and WiMAX which are 2.35-2.54 GHz, 3.45-3.57 GHz and 5.74-5.83 GHz. These results correspond to a simulated bandwidth of 197 MHz, 118 MHz and 90 MHz. The radiation pattern of nearly omni-directional is obtained. Overall, the results obtained show the designed antenna have a good performances of the three operating bands