scholarly journals A NOVEL DESIGN OF COMPACT MONOPOLE ANTENNA WITH DEFECTED GROUND PLANE FOR WIDEBAND APPLICATIONS

2018 ◽  
Vol 70 ◽  
pp. 21-31 ◽  
Author(s):  
Sumeet Singh Bhatia ◽  
Aditi Sahni ◽  
Shashi B. Rana
Keyword(s):  
Ground Plane ◽  
Monopole Antenna ◽  
Novel Design ◽  
Defected Ground Plane

Compact UWB monopole antenna with reconfigurable band-notch characteristics

2019 ◽  
Vol 12 (3) ◽  
pp. 252-258 ◽  
Author(s):  
Liping Han ◽  
Jing Chen ◽  
Wenmei Zhang
Keyword(s):  
Ground Plane ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Dual Band ◽  
Radiation Patterns ◽  
Pin Diodes ◽  
Notch Band ◽  
Rectangular Patch ◽  
Compact Size ◽  
Defected Ground Plane

AbstractA compact ultra-wideband (UWB) monopole antenna with reconfigurable band-notch characteristics is demonstrated in this paper. It is comprised of a modified rectangular patch and a defected ground plane. The band-notch property in the WiMAX and WLAN bands is achieved by etching an open-ended slot on the radiating patch and an inverted U-shaped slot on the ground plane, respectively. To obtain the reconfigurable band-notch performance, two PIN diodes are inserted in the slots, and then the notch-band can be switched by changing the states of the PIN diodes. The antenna has a compact size of 0.47 λ1 × 0.27 λ1. The simulated and measured results indicate that the antenna can operate at a UWB mode, two single band-notch modes, and a dual band-notch mode. Moreover, stable radiation patterns are obtained.

scholarly journals A quad-band monopole antenna with defected ground plane for L-band/WiMAX/WLAN applications

2018 ◽  
Vol 31 (4) ◽  
pp. 627-639
Author(s):  
Biplab Bag ◽  
Priyabrata Biswas ◽  
Pratim Sarkar
Keyword(s):  
Return Loss ◽  
Ground Plane ◽  
Simulation Software ◽  
Monopole Antenna ◽  
Bottom Surface ◽  
Resonant Frequencies ◽  
Radiating Element ◽  
L Band ◽  
Parametric Analyses ◽  
Defected Ground Plane

In this paper, a planar quad band monopole antenna excited by the microstrip line feed is proposed for L-band, WiMAX and WLAN applications. The proposed antenna is composed of radiating element in the form of L, U and inverted Lshaped strips on the top surface of substrate and defected ground plane on the bottom surface. By adjusting the length of the strips, the resonant frequencies can be reformed individually. The overall dimension of the prototype of the proposed quad band antenna is 50x35x1.6mm?. From the measured results it is found that the proposed antenna has exhibited four distinct operating bands (return loss less than -10dB) of 170MHz (from 1.16 to 1.33GHz), 550MHz (from 1.53 to 2.08GHz), 470MHz (from 2.43 to 2.90GHz) and 3930MHz (from 3.77 to 7.70GHz). First two bands operated in L-band, third band can be used for WiMAX lower band (2.5GHz) and bandwidth of fourth band may be used for WLAN (5.2/5.8 GHz) and WiMAX (5.5GHz) applications. It is also observed that the proposed antenna has good radiation patterns and acceptable gains over the whole operating bands. The design process and parametric analyses are explained with the help of simulation software HFSS v.11.

A Grating Monopole Antenna on Metamaterial Using MSRR for DVB-T Application

2015 ◽  
Vol 789-790 ◽  
pp. 989-992
Author(s):  
C. Zebiri ◽  
Mohamed Lashab ◽  
Fatiha Benabdelaziz ◽  
R.A. Abd-Alhameed ◽  
Fauzi Elmegri
Keyword(s):  
Ring Resonator ◽  
Ground Plane ◽  
Split Ring Resonator ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Frequency Range ◽  
Split Ring ◽  
Digital Video Broadcasting ◽  
Video Broadcasting ◽  
Defected Ground Plane

This work presents a novel broadband monopole antenna for digital video broadcasting-terrestrial (DVB-T) application. The proposed antenna consists of a grating patch and a concave rectangular ground plane with defected ground plane, and the Multiple Split-Ring Resonator (MSRR). The added part in the ground plane and the meta-material are used to enable the antenna height reduction for fixed ranges of operating frequency. The antenna can operate from 468 MHz to 894 MHz frequency range corresponding to 62.5% of impedance bandwidth for |S11|<-7.5 dB. Details of the proposed antenna designs and experimental results of the constructed prototypes are presented and discussed.

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