Gap-Coupling: A Potential Method for Enhancing the Bandwidth of Microstrip Antennas

Kumar, Pradeep; Singh, Ghanshyam

doi:10.5899/2012/acte-00110

Cited by 17 publications

(6 citation statements)

References 35 publications

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“…Nevertheless, it still can be improved for wider bandwidth [12]. Gap-coupled of the parasitic patch can also increase bandwidth value, as shown at [13], producing dual resonant frequency. Some studies also proved that gap-couple could widen bandwidth antenna [14] [15].…”

Section: Introductionmentioning

confidence: 99%

Bandwidth and Gain Enhancement of Microstrip Antenna Using Defected Ground Structure and Horizontal Patch Gap

Rusdiyanto

Apriono

Astuti

et al. 2021

Sinergi

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This research proposed microstrip antenna design using the Defected Ground Structure (DGS) and horizontal patch gap (HPG) for bandwidth and enhancement purposes. This design is to reduce the weakness of a microstrip antenna, which has small gain and narrow bandwidth. The design was simulated in CST Microwave Studio with a working frequency of 2.4 GHz. The design consists of three stages model, i.e., conventional design, DGS modification, and the combination DGS using a Horizontal Patch Gap (DGSHPG). The radius of the conventional circular patch is 16.7 mm. The substrate has 4.6 of dielectric constant, 1.6 of substrate height, and 0.025 of the loss tangent. The simulation results show that the DGS design produces more bandwidth and gain than a conventional design, where the bandwidth and gain improvement are 421.2 MHz and 1.73 dB, respectively. The DGS model is combined with a gap that separates the circular patch (DGSHPG) to achieve the optimum design. The results show the bandwidth and gain improvement of more than 50% and 18.1% compared to the DGS design, respectively. Other parameter performance also shows improvement, such as a reflection factor with -53.3 dB at the center frequency. The physical change also influences the patch’s radius, where it is reduced around 1.4 mm or 8.4% from the original design. Overall, the proposed design has succeeded in achieving bandwidth and gain enhancement and reducing the patch dimension.

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Section: Introductionmentioning

confidence: 99%

Bandwidth and Gain Enhancement of Microstrip Antenna Using Defected Ground Structure and Horizontal Patch Gap

Rusdiyanto

Apriono

Astuti

et al. 2021

Sinergi

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“…The overall return loss was resulted as the superposition of the responses of the resonators. With an adjustment of feed location and parameters of the patches a wide bandwidth was achieved [6]. Also, presence of slots in Microstrip antenna was used for dual band purpose.…”

Section: Introductionmentioning

confidence: 99%

Design of Antenna Array for Ku-Band Wireless Application

Satrusallya¹,

Mohanty²

2021

I2M

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The antenna is the back bone of communication. In recent time, it needs to communicate in many ways along with different types of data such as voice, video, text etc. A long distance communication satellite needs a seamless transmission. The antenna design for satellite communication is to be array type to avoid the communication failure. This insists to work with array antenna to fulfil the seam less communication through satellite. Further the antenna design depends on the geometry of the patch, the placement of the patch for better gain and bandwidth. In this paper, authors have chosen the circular patch due to its single degree of freedom. The antenna is compact and is of 30X30mm2 where substrate thickness is considered as 1.6mm. The central patch is of rectangular shape with two slots. Slot is made because of better bandwidth. It is cut diagonally at the corner. As a result, the bandwidth is increased to 2.4GHz with a gain of 5.68dB. The substrate is considered to be FR4 Epoxy. The proposed design satisfies the compactness along with the satellite communication band with satisfactory gain. Simulation results compromise with the measured value. A 3X3 array of circular parasitic elements is considered. It is found that the antenna performs well at 14GHz that is meant for Ku band. The radius of the parasitic patch is considered as 4mm to satisfy the less space with good performance.

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“…To achieve these characteristics in microstrip antennas, researchers are continuously working on the performance improvement of the microstrip antennas. The performance of the microstrip can be improved by changing the substrate parameters [1], [2], by using gapcoupling [3], [4], by using frequency selective surface [5], by using electronic band gap structures [6], by stackcoupling [7], by using metamaterials [8], using polarization diversity techniques [9], [10], by impedance matching technique [11], by low cross polarization technique [12] etc.…”

Section: Introductionmentioning

confidence: 99%

A Microstrip Patch Antenna with Defected Ground Structure for Triple Band Wireless Communications

Mabaso¹,

Kumar²

2019

jcm

Self Cite

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In this article, a triple band microstrip antenna is designed and developed. The rectangular patch is loaded with slots and the ground is made defective for achieving triple band operation. The proposed design is optimized and simulated using CST microwave studio simulator. The optimized structure of the proposed design for triple mode operates at 1.2 GHz, 2.45 GHz and 5.6372 GHz. The prototype of the proposed antenna is developed and measured. The simulated and measured results are presented. Various antenna patterns such as reflection coefficient, E-plane and H-plane radiation patterns, gain, directivity etc are presented and discussed. The reflection coefficient plot of the proposed antenna both in simulation and in measurement confirms the triple band characteristics. The maximum gain and maximum directivity of the antenna are 6.307 dB and 7.279 dBi, respectively. The proposed antenna is suitable for wireless video transmission, wireless security systems, industry, scientific and medical (ISM) radio, and wireless local area networks (WLANs) applications.

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Gap-Coupling: A Potential Method for Enhancing the Bandwidth of Microstrip Antennas

Cited by 17 publications

References 35 publications

Bandwidth and Gain Enhancement of Microstrip Antenna Using Defected Ground Structure and Horizontal Patch Gap

Bandwidth and Gain Enhancement of Microstrip Antenna Using Defected Ground Structure and Horizontal Patch Gap

Design of Antenna Array for Ku-Band Wireless Application

A Microstrip Patch Antenna with Defected Ground Structure for Triple Band Wireless Communications

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