Low-profile ultra-wideband inverted-hat monopole antenna for 50 MHz–2 GHz operation

2009 ◽  
Vol 45 (3) ◽  
pp. 142 ◽  
Author(s):  
J. Zhao ◽  
T. Peng ◽  
C.-C. Chen ◽  
J.L. Volakis
Keyword(s):  
Monopole Antenna ◽  
Ultra Wideband ◽  
Low Profile

An ultra low-profile ultra wideband blade shape monopole antenna

2015 ◽  
Vol 57 (7) ◽  
pp. 1695-1699 ◽  
Author(s):  
Davood Basaery ◽  
Seyed Mohammadjavad Razavi ◽  
Seyed Hosein Mohseni Armaki ◽  
Mohammad Mehrpour
Keyword(s):  
Monopole Antenna ◽  
Ultra Wideband ◽  
Low Profile ◽  
Blade Shape

scholarly journals Sierpinski carpet fractal monopole antenna for ultra-wideband applications

2022 ◽  
Vol 12 (1) ◽  
pp. 983
Author(s):  
Medhal Bharathraj Kumar ◽  
Praveen Jayappa
Keyword(s):  
Microstrip Antenna ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Base Case ◽  
Fractal Antenna ◽  
Sierpinski Carpet ◽  
Low Profile ◽  
Self Similar ◽  
Fractal Antennas ◽  
Sierpiński Carpet

Microstrip antenna is broadly used in the modern communication system due to its significant features such as light weight, inexpensive, low profile, and ease of integration with radio frequency devices. The fractal shape is applied in antenna geometry to obtain the ultra-wideband antennas. In this paper, the sierpinski carpet fractal monopole antenna (SCFMA) is developed for base case, first iteration and second iteration to obtain the wideband based on its space filling and self-similar characteristics. The dimension of the monopole patch size is optimized to minimize the overall dimension of the fractal antenna. Moreover, the optimized planar structure is proposed using the microstrip line feed. The monopole antenna is mounted on the FR4 substrate with the thickness of 1.6 mm with loss tangent of 0.02 and relative permittivity of 4.4. The performance of this SCFMA is analyzed in terms of area, bandwidth, return loss, voltage standing wave ratio, radiation pattern and gain. The proposed fractal antenna achieves three different bandwidth ranges such as 2.6-4.0 GHz, 2.5-4.3 GHz and 2.4-4.4 GHz for base case, first and second iteration respectively. The proposed SCFMA is compared with existing fractal antennas to prove the efficiency of the SCFMA design. The area of the SCFMA is 25×20 mm<sup>2</sup>, which is less when compared to the existing fractal antennas.

Measurement Analysis of Ultra-Wideband Monopole Antenna With Defected Ground Structure

2017 ◽  
Vol 6 (1) ◽  
pp. 1-12
Author(s):  
Madan Kumar Sharma ◽  
Mithilesh Kumar ◽  
J.P. Saini
Keyword(s):  
Monopole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Radiation Characteristics ◽  
Measurement Analysis ◽  
Low Profile ◽  
X 24 ◽  
Uwb Applications

This article describes how a compact, low profile Ultra-wideband (UWB) monopole antenna with a defected ground structure is designed and demonstrated experimentally. The design and experimentation activities have been carried out with the help of a CST Microwave studio tool. The UWB characteristics of the proposed antenna are achieved with a modification of the ground structure of the referenced antenna with novel L shaped defected ground structure (DGS). Both antennas are fabricated on the same substrate with the dimensions of 28.3 x 24 mm2. The comparative analysis of the results for both antennas clearly indicate that the proposed UWB monopole antenna enhanced the impedance bandwidth from 3.7 GHz – 14.9 GHz without DGS and to 3.4 GHz – 20 GHz with DGS. The enhanced bandwidth, constant group delay and good radiation characteristics of the proposed antenna have identified it as a good candidate for portable UWB applications.

scholarly journals Compact Ultra-Wideband Monopole Antenna Loaded with Metamaterial

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 796 ◽  
Author(s):  
Samir Salem Al-Bawri ◽  
Hui Hwang Goh ◽  
Md Shabiul Islam ◽  
Hin Yong Wong ◽  
Mohd Faizal Jamlos ◽  
...  
Keyword(s):  
Poor Performance ◽  
Split Ring Resonator ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Negative Permittivity ◽  
Wide Bandwidth ◽  
Low Profile ◽  
Compact Size ◽  
Unit Cells ◽  
Uwb Applications

A printed compact monopole antenna based on a single negative (SNG) metamaterial is proposed for ultra-wideband (UWB) applications. A low-profile, key-shaped structure forms the radiating monopole and is loaded with metamaterial unit cells with negative permittivity and more than 1.5 GHz bandwidth of near-zero refractive index (NZRI) property. The antenna offers a wide bandwidth from 3.08 to 14.1 GHz and an average gain of 4.54 dBi, with a peak gain of 6.12 dBi; this is in contrast to the poor performance when metamaterial is not used. Moreover, the maximum obtained radiation efficiency is 97%. A reasonable agreement between simulation and experiments is realized, demonstrating that the proposed antenna can operate over a wide bandwidth with symmetric split-ring resonator (SSRR) metamaterial structures and compact size of 14.5 × 22 mm2 (0.148 λ0 × 0.226 λ0) with respect to the lowest operating frequency.

Enhanced Ultra-Wideband (UWB) Circular Monopole Antenna with Electromagnetic Band Gap (EBG) Surface and Director

2014 ◽  
Author(s):  
Amir I. Zaghloul ◽  
Youn M. Lee ◽  
Gregory A. Mitchell ◽  
Theodore K. Anthony
Keyword(s):  
Band Gap ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Electromagnetic Band Gap
Sign in / Sign up

Export Citation Format

Share Document