scholarly journals Microstrip Line Fed Fractal Monopole Antenna with Defected Ground Structure

2018 ◽  
Vol 7 (3.31) ◽  
pp. 21
Author(s):  
S S. Mohan Reddy ◽  
M M. Vinod Kumar ◽  
B Sanjay ◽  
K Aruna Kumari ◽  
G V. S. Padma Rao
Keyword(s):  
Dielectric Constant ◽  
Microstrip Line ◽  
Return Loss ◽  
Cellular Communication ◽  
Monopole Antenna ◽  
Wave Guide ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Ansoft Hfss ◽  
Proposed Model

This paper presents a wideband polarized antenna that is designed and analyzed for the cellular communication applications. The proposed antenna is designed with the coplanar wave guide feeding (CPW) by using the RT/ duroid 5880 material with a dielectric constant 2.2. It is observed that in the proposed model the return loss is -21.40dB for ungrounded CPW where as for the grounded CPW the loss is reduced to -39.13dB. The gain for the ungrounded CPW fed antenna is 2.95 dB and is enhanced to 3.2dB with  grounded CPW structure. It is observed that there is an improvement in the bandwidth upto 6.03 GhZ for grounded CPW when  DGS is applied. The antenna designing and simulation is done using ANSOFT HFSS software.  

Design of an Ideal Low Pass Microstrip Line Filter Using the Defected Ground Structure

2018 ◽  
Vol 876 ◽  
pp. 133-137
Author(s):  
Ping Cheng Chen ◽  
Chung Long Pan ◽  
J.D. Huang ◽  
S.H. Hong
Keyword(s):  
Frequency Response ◽  
Microstrip Line ◽  
Geometric Shape ◽  
Center Frequency ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Ansoft Hfss ◽  
Low Pass

A design and simulation for low pass microstrip line filter with defected ground structure has been researched, the main purpose is with the simplest method to design an ideal low pass filter. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different geometric shape of DGS. The results show good performance of a low pass filter with DGS. Final, a low pass filter with DGS design and fabricated, The properties are shown as flow: center-frequency: 7.28G, S21:-47dB, cut-off frequency: 5.88GHz.

scholarly journals Design of Multiband Antenna for Wimax and WLAN Applications Using DGS

2018 ◽  
Vol 7 (3.12) ◽  
pp. 140
Author(s):  
Banuprakash R ◽  
GSPN Amith ◽  
Gagana N ◽  
Ravi AG ◽  
Pavanashree C
Keyword(s):  
Dielectric Constant ◽  
Return Loss ◽  
Radiation Patterns ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Multiband Antenna ◽  
Feed Line

In this paper, a multiband antenna with a micro strip feed line is presented. This antenna is designed on FR4 substrate with dielectric constant 4.4 having overall size of 20 × 20 × 1.6mm3. The proposed antenna comprises defected ground structure with T and L shape slots to achieve multiband frequencies. This multiband antenna covers three different frequencies as 3.3 GHz, 3.85 GHz and 5.25 GHz. All of these frequencies are applicable for WiMAX and WLAN applications respectively. Return loss (S11), Gain and Radiation patterns are simulated and observed on HFSS.  

A Design of Ultrawide Band Planar Monopole Antenna Based on Microstrip Pentagonal Patch

2010 ◽  
Vol 108-111 ◽  
pp. 915-920
Author(s):  
Ming Hua Gao
Keyword(s):  
Reflection Loss ◽  
Communication Systems ◽  
Microstrip Line ◽  
Return Loss ◽  
Wide Band ◽  
Monopole Antenna ◽  
Ultra Wide Band ◽  
Ansoft Hfss ◽  
Radiation Unit ◽  
Planar Monopole Antenna

An ultra-wide band planar monopole antenna is presented in this paper. This antenna uses a pentagonal patch as radiation unit and is fed by a microstrip line. The relevant simulation is performed by using Ansoft HFSS. The return loss curve and the radiation patterns of this new antenna are given. And the effect of the size of the various parts of the antenna on the reflection loss is analyzed. Experimental results show that the proposed antenna provides an ultra-wide bandwidth (1.70~12.90 GHz) for return loss less than -10dB (VSWR<2). It is suitable for current ultra-wide band communication systems.

Design of a 2.4GHz-Microstrip Line Filter Using the Semicircle Defected Ground Structure

2018 ◽  
Vol 876 ◽  
pp. 105-109
Author(s):  
Ping Cheng Chen ◽  
Chung Long Pan ◽  
T.Y. Lai ◽  
T.U. Lin
Keyword(s):  
Resonant Frequency ◽  
Frequency Response ◽  
Microstrip Line ◽  
Higher Order ◽  
Center Frequency ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Ansoft Hfss

A design and simulation for L-shaped slot microstrip line antenna with semicircle defected ground structure has been researched, the main purpose is suppressing the existence of higher order harmonic. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different parameters such as dimensions, amounts of SDGS. The results show good performance of SDGS in higher resonant frequency suppression. Final, an antenna with 2.4GHz center frequency had been design and fabricated.

scholarly journals Novel UWB Microstrip Antenna Structures with Defected Ground Structure

2018 ◽  
Vol 11 (2) ◽  
pp. 429
Author(s):  
Saida Elajoumi ◽  
A. Tajmouati ◽  
J. Zbitou ◽  
A. Errkik ◽  
L. El Abdellaoui ◽  
...  
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Federal Communication Commission ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Printed Antennas ◽  
Ansoft Hfss ◽  
Good Agreement

<p>This paper presents the design of new compact printed antennas for Ultra Wide Band applications, fed with a microstrip-line. The proposed designs consist of a patch antenna with defected ground, which are fed by 50Ω microstrip transmission line. The frequency range is 3.1-10.6 GHz which is the Federal Communication Commission (FCC) band of UWB. The proposed antennas are easy for integration with microwave circuits. They are validated into simulation by using two electromagnetic solvers CST-MW and Ansoft HFSS. The simulated input impedance bandwidth ranging 3GHz to more than 14 GHz is obtained with return loss less -10dB, and exhibits good UWB characteristics. The measured parameters are good agreement with the simulation. Therefore these antennas offer excellent performance for UWB system.</p>

A Design of Microstrip Line Filter Using the Semicircle Defected Ground Structure

2015 ◽  
Vol 799-800 ◽  
pp. 1217-1221
Author(s):  
Ping Cheng Chen ◽  
Chung Long Pan ◽  
Y.C. Qiu ◽  
G.P. Jhuan
Keyword(s):  
Frequency Response ◽  
Microstrip Line ◽  
Center Frequency ◽  
Q Factor ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Harmonic Frequency ◽  
High Q ◽  
Ansoft Hfss

A design and simulation for microstrip line filter with semicircle defected ground structure has been researched. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different parameters such as dimensions, amounts of SDGS.The results show good performance of SDGS in high cut-off frequency, erase of harmonic frequency, smaller dimension. Final, a filter with4.4GHz center frequency,high Q-factor had been design and fabricated.

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

2018 ◽  
Vol 7 (3) ◽  
pp. 56-63 ◽  
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.

scholarly journals Circle Microstrip Antenna Simulation for Frequency 3.5 GHz

2021 ◽  
Vol 1 (1) ◽  
pp. 1-4
Author(s):  
Wildan Wildan ◽  
Dwi Astuti Cahyasiwi ◽  
Syah Alam ◽  
Mohd Azman Zakariya ◽  
Harry Ramza
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Return Loss ◽  
Tangent Loss ◽  
Substrate Thickness ◽  
Total Radiation ◽  
Circular Patch Antenna ◽  
Working Frequency

This research proposed microstrip circular patch antenna simulation at a working frequency 3500 MHz. The antenna has been designed using a Duroid RT5880 substrate with dielectric constant (εr) = 2.2, substrate thickness (h) = 1.575 mm, and tangent loss = 0.0009 with microstrip line feeding. The simulation result, return loss value obtained -26.385, VSWR value 1.09, gain value 7.64 dBi, total radiation efficiency value -0.6489 dB, and bandwidth value 72 MHz (3468.8 MHz – 3541.9 MHz).

Sign in / Sign up

Export Citation Format

Share Document