The Effect of a Single and Combined Slot Generated At the Upper and Lower Part of the Rectangular Patch Antenna Performances

<div>The paper investigates the effect of the slot made on the radiating plane (top) and ground plane individually and their effect when made on both the surfaces on the antenna performance. The paper further investigates effect of the slot on gain, frequency and radiation pattern made at different angles more specifically at angles of 0°,45° and 90° to the antenna feed line.The antenna has been designed using advanced system design (ADS).</div>

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An Octagonal Ring-shaped Parasitic Resonator Based Compact Ultrawideband Antenna for Microwave Imaging Applications

Sensors ◽

10.3390/s20051354 ◽

2020 ◽

Vol 20 (5) ◽

pp. 1354 ◽

Cited By ~ 4

Author(s):

Amran Hossain ◽

Mohammad Tariqul Islam ◽

Ali F. Almutairi ◽

Mandeep Singh Jit Singh ◽

Kamarulzaman Mat ◽

...

Keyword(s):

Experimental Data ◽

Reflection Coefficient ◽

Radiation Pattern ◽

Patch Antenna ◽

Ground Plane ◽

Microwave Imaging ◽

Average Efficiency ◽

Antenna Performance ◽

Directional Radiation ◽

Radiation Directivity

An Ultrawideband (UWB) octagonal ring-shaped parasitic resonator-based patch antenna for microwave imaging applications is presented in this study, which is constructed with a diamond-shaped radiating patch, three octagonal, rectangular slotted ring-shaped parasitic resonator elements, and partial slotting ground plane. The main goals of uses of parasitic ring-shaped elements are improving antenna performance. In the prototype, various kinds of slots on the ground plane were investigated, and especially rectangular slots and irregular zigzag slots are applied to enhance bandwidth, gain, efficiency, and radiation directivity. The optimized size of the antenna is 29 × 24 × 1.5 mm3 by using the FR-4 substrate. The overall results illustrate that the antenna has a bandwidth of 8.7 GHz (2.80–11.50 GHz) for the reflection coefficient S11 < −10 dB with directional radiation pattern. The maximum gain of the proposed prototype is more than 5.7 dBi, and the average efficiency over the radiating bandwidth is 75%. Different design modifications are performed to attain the most favorable outcome of the proposed antenna. However, the prototype of the proposed antenna is designed and simulated in the 3D simulator CST Microwave Studio 2018 and then effectively fabricated and measured. The investigation throughout the study of the numerical as well as experimental data explicit that the proposed antenna is appropriate for the Ultrawideband-based microwave-imaging fields.

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Bandwidth and Efficiency Enhancement of Rectangular Patch Antenna for SHF Applications

Engineering, Technology & Applied Science Research ◽

10.48084/etasr.3014 ◽

2019 ◽

Vol 9 (6) ◽

pp. 4962-4967

Author(s):

M. M. Nahas ◽

M. Nahas

Keyword(s):

Patch Antenna ◽

High Frequency ◽

Low Cost ◽

Ground Plane ◽

Cost Effective ◽

Dielectric Substrate ◽

Microstrip Patch Antenna ◽

Microstrip Patch ◽

Rectangular Patch ◽

Antenna Performance

The microstrip patch antenna is used in various communication applications including cellular phones, satellites, missiles, and radars, due to its several attractive features such as small size and weight, low cost, and easy fabrication. The microstrip patch antenna consists of a top radiating patch, a bottom ground plane, and a dielectric substrate in between. The patch can have different shapes, the rectangular patch being the most commonly used. In practice, the microstrip antenna suffers from narrow bandwidth and low gain efficiency. This paper aims to enhance the bandwidth and efficiency of a rectangular-patch antenna using the High-Frequency Structure Simulator (HFSS). Initially different patch sizes and substrate materials are investigated and optimal antenna parameters are achieved. Then, the antenna performance is further enhanced by inserting single and double slot designs into the patch. Two cost-effective feeding methods are involved in the investigation. The antenna is designed to operate in the Super High Frequency (SHF) band.

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A Compact UWB Antenna Design using Modified Ground Plane

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.i8949.0881019 ◽

2019 ◽

Vol 8 (10) ◽

pp. 615-618

Keyword(s):

Patch Antenna ◽

Return Loss ◽

Ground Plane ◽

Wide Band ◽

Antenna Design ◽

Ultra Wide Band ◽

Uwb Antenna ◽

Special Configuration ◽

Feed Line ◽

Rectangular Patch

A compact rectangular MS antenna for Ultra Wide Band applications is designed. In the proposed design the rectangular patch antenna designed with cutting a slot in ground of length and width 2.5mm and 3.0mm respectively at the back of feed line. By using the defective ground plane a wide BWof 9.782 GHz with frequency band 3.099 GHz to 12.278 GHz is achieved. The designed antenna with a compressed size of 30 mm x 30 mm is fabricated and tested. The antenna’s return loss and VSWR plots are presented here to confirm the complete UWB bands. Special configuration of patch antenna with slotted partial ground was designed and optimized using CST Microwave Studio.

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Compact Triple/Quadruple-Band Reconfigurable Monopole Antenna for Wireless Applications

Journal of Circuits System and Computers ◽

10.1142/s0218126621502777 ◽

2021 ◽

pp. 2150277

Author(s):

Asmaa Zugari ◽

Wael Abd Ellatif Ali ◽

Mohammad Ahmad Salamin ◽

El Mokhtar Hamham

Keyword(s):

Simple Structure ◽

Low Cost ◽

Ground Plane ◽

Monopole Antenna ◽

Pin Diode ◽

Wireless Applications ◽

Rectangular Patch ◽

Antenna Performance ◽

Compact Size ◽

Multi Band

In this paper, a compact reconfigurable tri-band/quad-band monopole antenna is presented. To achieve the multi-band behavior, two right-angled triangles were etched in a conventional rectangular patch, and a partial ground plane is used. Moreover, the proposed multi-band antenna is printed on a low cost FR4 epoxy with compact dimensions of 0.23[Formula: see text], where [Formula: see text] is calculated at the lowest resonance frequency. To provide frequency agility, a metal strip which acts as PIN diode was embedded in the frame of the modified patch. The tri-band/quad-band antenna performance in terms of reflection coefficient, radiation patterns, peak gain and efficiency was studied. The measured results are consistent with the simulated results for both cases. The simple structure and the compact size of the proposed antenna could make it a good candidate for multi-band wireless applications.

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A Novel Circular Slotted Microstrip-Fed Patch Antenna with three Triangle Shape Defected Ground Structure for Multiband Applications

Advanced Electromagnetics ◽

10.7716/aem.v7i3.717 ◽

2018 ◽

Vol 7 (3) ◽

pp. 56-63 ◽

Cited By ~ 2

Author(s):

A. Jaiswal ◽

R. K. Sarin ◽

B. Raj ◽

S. Sukhija

Keyword(s):

Patch Antenna ◽

Return Loss ◽

Impedance Matching ◽

Ground Plane ◽

Defected Ground Structure ◽

Ground Structure ◽

Resonant Frequencies ◽

Wireless Applications ◽

Rectangular Patch ◽

Miniaturized Antenna

In this paper, a novel circular slotted rectangular patch antenna with three triangle shape Defected Ground Structure (DGS) has been proposed. Radiating patch is made by cutting circular slots of radius 3 mm from the three sides and center of the conventional rectangular patch structure and three triangle shape defects are presented on the ground layer. The size of the proposed antenna is 38 X 25 mm2. Optimization is performed and simulation results have been obtained using Empire XCcel 5.51 software. Thus, a miniaturized antenna is designed which has three impedance bandwidths of 0.957 GHz, 0.779 GHz, 0.665 GHz with resonant frequencies at 3.33 GHz, 6.97 GHz and 8.59 GHz and the corresponding return loss at the three resonant frequencies are -40 dB, -43 dB and -38.71 dB respectively. A prototype is also fabricated and tested. Fine agreement between the measured and simulated results has been obtained. It has been observed that introducing three triangle shape defects on the ground plane results in increased bandwidth, less return loss, good radiation pattern and better impedance matching over the required operating bands which can be used for wireless applications and future 5G applications.

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Ultralow Profile, Low Passive Intermodulation, and Super-Wideband Ceiling Mount Antennas for Cellular and Public Safety Distributed Antenna Systems

Sensors ◽

10.3390/s20092456 ◽

2020 ◽

Vol 20 (9) ◽

pp. 2456

Author(s):

Kok Jiunn Ng ◽

Mohammad Tariqul Islam ◽

Adam M. Alevy ◽

Mohd. Fais Mansor

Keyword(s):

Radiation Pattern ◽

Public Safety ◽

Ground Plane ◽

Antenna System ◽

Band Ratio ◽

Antenna Performance ◽

Distributed Antenna ◽

Small Disc ◽

Passive Intermodulation ◽

Better Than

This paper presents an ultralow profile, low passive intermodulation (PIM), and super-wideband in-building ceiling mount antenna that covers both the cellular and public safety ultra high frequency (UHF) band for distributed antenna system (DAS) applications. The proposed antenna design utilizes a modified 2-D planar discone design concept that is miniaturized to fit into a small disc-shaped radome. The 2-D planar discone has an elliptical-shaped disc monopole and a bell-shaped ground plane, a stub at the shorting path, with asymmetrical structure and an additional proximity coupling patch to maximize the available electrical path to support the 350 MHz band range. The proposed design maximizes the radome area with a reduction of about 62% compared to similar concept type antennas. Besides, the proposed design exhibits an improved radiation pattern with null reduction compared to a typical dipole/monopole when lies at the horizontal plane. A prototype was manufactured to demonstrate the antenna performance. The VSWR and radiation pattern results agreed with the simulated results. The proposed antenna achieves a band ratio of 28.57:1 while covering a frequency range of 350–10000 MHz. The measured passive intermodulation levels are better than −150 dBc (2 × 20 Watts) for 350, 700 and 1920 MHz bands.

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Circularly Polarized Rectangular Microstrip Patch Antenna with Finite Ground Plane

International Journal of Informatics and Communication Technology (IJ-ICT) ◽

10.11591/ijict.v4i2.pp74-78 ◽

2015 ◽

Vol 4 (2) ◽

pp. 74

Author(s):

Sanyog Rawat ◽

Kamlesh Kumar Sharma

Keyword(s):

Patch Antenna ◽

Return Loss ◽

Ground Plane ◽

Axial Ratio ◽

Microstrip Patch Antenna ◽

Simulation Software ◽

Impedance Bandwidth ◽

Circularly Polarized ◽

Microstrip Patch ◽

Rectangular Patch

In this paper a new geometry of patch antenna is proposed with improved bandwidth and circular polarization. The radiation performance of circularly polarized rectangular patch antenna is investigated by applying IE3D simulation software and its performance is compared with that of conventional rectangular patch antenna. Finite Ground truncation technique is used to obtain the desired results. The simulated return loss, axial ratio and smith chart with frequency for the proposed antenna is reported in this paper. It is shown that by selecting suitable ground-plane dimensions, air gap and location of the slits, the impedance bandwidth can be enhanced upto 10.15 % as compared to conventional rectangular patch (4.24%) with an axial ratio bandwidth of 4.05%.

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Performance Comparison of Swastika and Rectangular Shaped Microstrip Patch Antenna

Kathford Journal of Engineering and Management ◽

10.3126/kjem.v1i1.22015 ◽

2018 ◽

Vol 1 (1) ◽

pp. 11-14

Author(s):

Suroj Burlakoti ◽

Prakash Rai

Keyword(s):

Radiation Pattern ◽

Patch Antenna ◽

Return Loss ◽

Ground Plane ◽

Performance Comparison ◽

Microstrip Patch Antenna ◽

Simulation Software ◽

Patch Antennas ◽

Microstrip Patch Antennas ◽

Microstrip Patch

In this paper, Microstrip patch antennas with rectangular and swastika shape of patch are designed and its performance parameters are compared with each other. Rectangular and Swastika shaped patch are considered in this paper with common rectangular ground plane. The antenna is simulated at 2.4 GHz using HFSS simulation software. This work mainly includes modification of antenna patch to improve the antenna parameters. The parameters of antenna such as Return loss, VSWR Bandwidth and radiation pattern are compared using simulation. The performance of Swastika shaped antenna was found to be better than rectangular shaped microstrip patch antenna with improved Return Loss, VSWR, Bandwidth and Radiation Pattern.

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Periodic Microstrip Leaky Wave Antenna with Double-Sided Shorting Pins and Pairs of Slots

International Journal of Antennas and Propagation ◽

10.1155/2020/7101752 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Yahuan Chen ◽

Kuang Wang ◽

Yuanxin Li ◽

Yunliang Long

Keyword(s):

Radiation Pattern ◽

Structural Parameters ◽

Ground Plane ◽

Stop Band ◽

Leaky Wave ◽

Rectangular Patch ◽

Leaky Wave Antenna ◽

Wave Antenna ◽

Shorting Pin ◽

Frequency Changes

A backward to forward scanning periodic microstrip leaky wave antenna (MLWA) is presented. The proposed antenna consists of a long rectangular patch with alternating shorting pin on each side, which connects the antenna patch and the ground plane to form periodic shorting circuits. There are two pairs of slots alternately spaced on the long patch to suppress the open stop band (OSB). The OSB problem was initially reduced by optimizing the structural parameters, and the slotting on the patch further improved it. The measured radiation pattern in the y-z plane shows that the antenna can scan electronically from 142° to 39° toward the end-fire (+z direction) when the operating frequency changes from 6 GHz to 12.9 GHz. The measured gain is greater than 5 dBi over the entire operating band.

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