scholarly journals Measurement Engineering to Design a Truncated Ground Plane Compact Circular Ring Monopole Patch Antenna for Ultra Wideband Applications

2021 ◽  
Author(s):  
syed zeeshan Ali ◽  
Ikrame E Khuda ◽  
Kamran Raza ◽  
Mansoor Ebrahim
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Wide Band ◽  
Circular Ring ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Measurement Engineering ◽  
Compact Size ◽  
Compact Design

Abstract In this paper, using in-depth simulations and measurements, a simple and compact design is engineered for making a circular ring microstrip patch antenna radiating element which is suitable for different ultra wide band(UWB) applications. This design approach is different because it has not utilized the usual method of using a set of electromagnetic equations and calculations to make the radiating antenna. Measurements and simulations were performed on Microwave CST. Using this measurement engineering approach, novelty of proposed antenna structure is obtained by making the required changes in the ground plane. The measurements showed that truncating the ground plane by a square shape structure of 2.5mm by 2.5mm size at the feed point was practically significant to provide an impedance bandwidth (\({S}_{11}cript>\)) ranging from 2.75 GHz to 32.035 GHz with a VSWR which is less than 2. For this entire bandwidth the directivity has shown a variation from 0.8 dBi to 7.9 dBi. The compact size (33mm x28mm x1.57mm), low design complexity, very high bandwidth, good directivity and satisfying VSWR has made this antenna unique among all previously presented UWB antennas.

Super wideband printed monopole antenna for ultra wideband applications

2015 ◽  
Vol 9 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Sandeep Kumar Palaniswamy ◽  
Malathi Kanagasabai ◽  
Shrivastav Arun Kumar ◽  
M. Gulam Nabi Alsath ◽  
Sangeetha Velan ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Ground Plane ◽  
Wide Band ◽  
Local Area ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Area Network ◽  
Compact Size

This paper presents the design, testing, and analysis of a clover structured monopole antenna for super wideband applications. The proposed antenna has a wide impedance bandwidth (−10 dB bandwidth) from 1.9 GHz to frequency over 30 GHz. The clover shaped antenna with a compact size of 50 mm × 45 mm is designed and fabricated on an FR4 substrate with a thickness of 1.6 mm. Parametric study has been performed by varying the parameters of the clover to obtain an optimum wide band characteristics. Furthermore, the prototype introduces a method of achieving super wide bandwidth by deploying fusion of elliptical patch geometries (clover shaped) with a semi elliptical ground plane, loaded with a V-cut at the ground. The proposed antenna has a 14 dB bandwidth from 5.9 to 13.1 GHz, which is suitable for ultra wideband (UWB) outdoor propagation. The prototype is experimentally validated for frequencies within and greater than UWB. Transfer function, impulse response, and group delay has been plotted in order to address the time domain characteristics of the proposed antenna with fidelity factor values. The possible applications cover wireless local area network, C-band, Ku-band, K-band operations, Worldwide Interoperability for Microwave Access, and Wireless USB.

scholarly journals A Circular Coplanar Waveguide Fed Microstrip Patch Antenna with Modified Triangular Ground for UWB Applications

2019 ◽  
Vol 8 (9S) ◽  
pp. 170-174
Keyword(s):  
Patch Antenna ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Stop Band ◽  
Microstrip Patch Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Microstrip Patch ◽  
Antenna Performance

This research article gives a detailed insight of the design, simulation of a compact circular shaped microstrip patch antenna that is fed using a coplanar waveguide feed (CPW for practical wireless communication applications). The antenna is typically designed for Ultra wideband (1.46-6GHz), Bluetooth (2.4GHz), ZIGBEE (2.4GHz), WLAN (5.15- 5.35 GHz and 5.725- 5.825), Wi-Fi (2.4-2.485GHz) and HIPERLAN-2(5.15 - 5.35 GHz and 5.470 -5.725GHz) wireless applications with stop band characteristics for the H (partial C band). The proposed antenna has an overall packaged structure dimensions of 78 x75 x1.605 mm3 and is fabricated on FR4 substrate as a circular patch antenna with a coplanar ground .The commercially available laminate FR4 substrate that is used has a dielectric constant of 4.4, height of 1.6mm and a loss tangent of 0.0024.The prospective antenna shows a simulated impedance bandwidth of 4.54 GHz. The coplanar waveguide feeding used with this antenna helps in improving antenna performance in terms of its impedance bandwidth as this geometry helps in creating multiple current loops at the antenna structure, thereby exciting nearby frequencies that merge to show a broadband of operation. The antenna’s operational bandwidth is also improved by the concept of modified ground, in which triangular and rectangular shapes are added symmetrically on both sides of ground plane that provide a better fringing effect and hence an improved bandwidth.

scholarly journals Dual Notched-Band Crescent Moon Dielectric Resonator Antenna

2021 ◽  
Vol 25 (1) ◽  
pp. 11-19
Author(s):  
Mohamed Debab ◽  
◽  
Amina Bendaoudi ◽  
Zoubir Mahdjoub ◽  
◽  
...  
Keyword(s):  
Frequency Band ◽  
Dielectric Resonator ◽  
Satellite Communication ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Printed Antenna ◽  
Antenna Structure

In this article, a dual-band notched ultra-wideband (UWB) dielectric resonator antenna is proposed. The antenna structure consists of Crescent Moon Dielectric Resonator (CMDR) fed by a stepped microstrip monopole printed antenna, partial ground plane, and an I-shaped stub. The Crescent Moon dielectric resonator is placed on the microstrip monopole printed antenna to achieve wide impedance bandwidth, and the I-shaped stub is utilized to improve impedance bandwidth for the WiMAX band. A comprehensive parametric study is carried out using HFSS software to achieve the optimum antenna performance and optimize the bandwidth of the proposed antenna. The entire band is useful with two filtered bands at 5.5 GHz and 6.8 GHz by the creation of notches. The band’s rejection, WLAN band (5.2–5.7 GHz), and the downlink frequency band of ITU 7 GHz-band for satellite communication (6.5–7.3 GHz) is realized by inserting G-shaped and C-shaped slots in the ground. The simulation results demonstrate that the proposed CMDR antenna achieves satisfactory UWB performance, with an impedance bandwidth of around 88.7%, covers the frequency band of 3.2 - 8.3 GHz, excluding a rejection band for the WLAN and ITU 7 GHz band. The CMDR is simulated using HFSS and CST high-frequency simulators.

scholarly journals Design Studies of Ultra-Wideband Microstrip Antennas with a Small Capacitive Feed

2007 ◽  
Vol 2007 ◽  
pp. 1-8 ◽  
Author(s):  
Veeresh G. Kasabegoudar ◽  
Dibyant S. Upadhyay ◽  
K. J. Vinoy
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Microstrip Antennas ◽  
Design Criterion ◽  
Air Gap ◽  
Ultra Wideband ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Rectangular Patch ◽  
Almost All

The design of an ultra-wideband microstrip patch antenna with a small coplanar capacitive feed strip is presented. The proposed rectangular patch antenna provides an impedance bandwidth of nearly 50%, and has stable radiation patterns for almost all frequencies in the operational band. Results presented here show that such wide bandwidths are also possible for triangular and semiellipse geometries with a similar feed arrangement. The proposed feed is a very small strip placed very close to the radiator on a substrate above the ground plane. Shape of the feed strip can also be different, so long as the area is not changed. Experimental results agree with the simulated results. Effects of key design parameters such as the air gap between the substrate and the ground plane, the distance between radiator patch and feed strip, and the dimensions of the feed strip on the input characteristics of the antenna have been investigated and discussed. As demonstrated here, the proposed antenna can be redesigned for any frequency in the L-, S-, C-, or X-band. A design criterion for the air gap has been empirically obtained to enable maximum antenna bandwidth for all these operational frequencies.

A Novel-Shaped Reduced Size FSS-Based Broadband High Gain Microstrip Patch Antenna for WiMAX/WLAN/ISM/X-Band Applications

2021 ◽  
pp. 2150290
Author(s):  
Kalyan Mondal
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Ground Plane ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Microstrip Patch ◽  
Antenna Performance ◽  
Peak Gain

In this work, a broadband high gain frequency selective surface (FSS)-based microstrip patch antenna is proposed. The dimensions of the microstrip antenna and proposed FSS are [Formula: see text] and [Formula: see text]. A broadband high gain reference antenna has been selected to improve antenna performance. The reference antenna offers 1.2[Formula: see text]GHz bandwidth with 6.03[Formula: see text]dBi peak gain. Some modifications have been done on the patch and ground plane to enhance the bandwidth and gain. The impedance bandwidth of 7.70[Formula: see text]GHz (3.42–11.12[Formula: see text]GHz) with 4.9 dBi peak gain is achieved by the microstrip antenna without FSS. The antenna performance is improved by using FSS beneath the antenna structure. The maximum impedance bandwidth of 7.70[Formula: see text]GHz (3.32–11.02[Formula: see text]GHz) and peak gain of 8.6[Formula: see text]dBi are achieved by the proposed antenna with FSS. Maximum co- and cross-polarization differences are 21[Formula: see text]dB. The simulation and measurement have been done using Ansoft Designer software and vector network analyzer. The measured results are in good parity with the simulated one.

CPW-fed circular-shaped fractal antenna with three iterations for UWB applications

2015 ◽  
Vol 9 (2) ◽  
pp. 373-379 ◽  
Author(s):  
Sarthak Singhal ◽  
Ankit Pandey ◽  
Amit Kumar Singh
Keyword(s):  
Coplanar Waveguide ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Fractal Antenna ◽  
Frequency Range ◽  
Fractal Structures ◽  
Antenna Structure ◽  
Uwb Applications ◽  
Good Agreement

A coplanar waveguide (CPW)-fed circular-shaped fractal antenna with third iterative orthogonal elliptical slot for ultra-wideband applications is presented. The bandwidth is enhanced by using successive iterations of radiating patch, CPW feedline, and tapered ground plane. An impedance bandwidth of 2.9–20.6 GHz is achieved. The designed antenna has omnidirectional radiation patterns along with average peak realized gain of 3.5 dB over the entire frequency range of operation. A good agreement is observed between the simulated and experimental results. This antenna structure has the advantages of miniaturized size and wide bandwidth in comparison to previously reported fractal structures.

scholarly journals 8-Port Semi-Circular Arc MIMO Antenna with an Inverted L-Strip Loaded Connected Ground for UWB Applications

Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1476
Author(s):  
Tathababu Addepalli ◽  
Arpan Desai ◽  
Issa Elfergani ◽  
N. Anveshkumar ◽  
Jayshri Kulkarni ◽  
...  
Keyword(s):  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Directional Pattern ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Circular Arc ◽  
Mimo Antenna ◽  
Input Multiple Output ◽  
Uwb Applications

Multiple-input multiple-output (MIMO) antennas with four and eight elements having connected grounds are designed for ultra-wideband applications. Careful optimization of the lines connecting the grounds leads to reduced mutual coupling amongst the radiating patches. The proposed antenna has a modified substrate geometry and comprises a circular arc-shaped conductive element on the top with the modified ground plane geometry. Polarization diversity and isolation are achieved by replicating the elements orthogonally forming a plus shape antenna structure. The modified ground plane consists of an inverted L strip and semi ellipse slot over the partial ground that helps the antenna in achieving effective wide bandwidth spanning from (117.91%) 2.84–11 GHz. Both 4/8-port antenna achieves a size of 0.61 λ × 0.61 λ mm2 (lowest frequency) where 4-port antenna is printed on FR4 substrate. The 4-port UWB MIMO antenna attains wide impedance bandwidth, Omni-directional pattern, isolation >15 dB, ECC < 0.015, and average gain >4.5 dB making the MIMO antenna suitable for portable UWB applications. Four element antenna structure is further extended to 8-element configuration with the connected ground where the decent value of IBW, isolation, and ECC is achieved.

scholarly journals Design of Transparent Antenna for 5G Wireless Applications

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 54
Author(s):  
Sanae Azizi ◽  
Laurent Canale ◽  
Saida Ahyoud ◽  
Georges Zissis ◽  
Adel Asselman
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Antenna Design ◽  
Impedance Bandwidth ◽  
Light Weight ◽  
Frequency Bandwidth ◽  
Frequency Range ◽  
Wireless Applications ◽  
Compact Size

This paper presents the design of a compact size band patch antenna for 5G wireless communications. This wideband antenna was designed on a glass substrate (12 × 11 × 2 mm3) and is optically transparent and compact. It consists of a radiation patch and a ground plane using AgHT-8 material. The antenna design comprises rectangular shaped branches optimized to attain the wideband characteristics. The calculated impedance bandwidth is 7.7% covering the frequency range of 25 to 27 GHz. A prototype of the antenna and various parameters such as return loss plot, gain plot, radiation pattern plot, and voltage standing wave ratio (VSWR) are presented and discussed. The simulated results of this antenna show that it is well suited for future 5G applications because of its transparency, flexibility, light weight, and wide achievable frequency bandwidth near the millimeter wave frequency band.

scholarly journals T-Shaped Compact Dielectric Resonator Antenna for UWB Application

2019 ◽  
Vol 8 (3) ◽  
pp. 57-63
Author(s):  
A. Zitouni ◽  
N. Boukli-Hacene
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Printed Antenna ◽  
Frequency Range ◽  
Radiation Characteristics ◽  
Antenna Structure ◽  
Antenna Performance

In this article, a novel T-shaped compact dielectric resonator antenna for ultra-wideband (UWB) application is presented and studied. The proposed DRA structure consists of T-shaped dielectric resonator fed by stepped microstrip monopole printed antenna, partial ground plane and an inverted L-shaped stub. The inverted L-shaped stub and parasitic strip are utilized to improve impedance bandwidth. A comprehensive parametric study is carried out using HFSS software to achieve the optimum antenna performance and optimize the bandwidth of the proposed antenna. From the simulation results, it is found that the proposed antenna structure operates over a frequency range of 3.45 to more than 28 GHz with a fractional bandwidth over 156.12%, which covers UWB application, and having better gain and radiation characteristics.

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