scholarly journals Design of a Dual Band Coplanar Antenna for WiMax Applications

2018 ◽  
Vol 7 (3.32) ◽  
pp. 11
Author(s):  
Wen Cheng Lai ◽  
Lin Chuan Tsai ◽  
Chia Wen Li
Keyword(s):  
High Frequency ◽  
Return Loss ◽  
Simulation Software ◽  
Circuit Board ◽  
Antenna Design ◽  
Dual Band ◽  
Electromagnetic Simulation ◽  
Continuous Simulation ◽  
Ansoft Hfss ◽  
Measurement Results

Ansoft HFSS electromagnetic simulation software was used in this study to simulate the design of two frequency band dual band coplanar antennas for WiMax (3.44GHz to 3.69GHz) and (5.25GHz to 5.85GHz) with center frequencies of 3.5GHz and 5.25GHz respectively. The steps of antenna design simulation are shown in figures of Return Loss, Current Distribution and 3D Radiation Pattern. Through continuous simulation, modification, and correction, the antenna can achieve the desired effect. Metal was used as the reflective material for the antenna designed, the antenna was covered by the material as a partition between the antenna and the metal, and FR4 was used as high-frequency circuit board (dielectric coefficient = 4.4). The simulation and measurement results were found to have consistent and good characteristics.  

scholarly journals Compact Micro Patch antenna with F Shape Extension DGS

2019 ◽  
Vol 9 (2S3) ◽  
pp. 164-167
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Return Loss ◽  
Simulation Software ◽  
Antenna Design ◽  
Electromagnetic Simulation ◽  
Ground Structure ◽  
Ansoft Hfss ◽  
Compact Microstrip Antenna

This work describes a compact microstrip antenna design for wide bandwidth applications. The proposed work introduces a methodology to improve the bandwidth, as well return loss by the defective ground structure (Extended F-Shape). As communication systems require small size, broadband and multiband frequency antennas, an inset line feed monopoles have to be ensured for fabricating broadband antennas. Intensive investigations are carried out in the proposed work to design a new antenna with broadband and multi-band properties. Simulations are performed by using the Ansoft HFSS Electromagnetic Simulation Software.

A Design of Printed Inverted-F Antenna for RFID Tag at 5.8 GHz

2013 ◽  
Vol 427-429 ◽  
pp. 1293-1296
Author(s):  
Yan Zhong Yu ◽  
Ji Zhen Ni ◽  
Xian Hui Li
Keyword(s):  
High Frequency ◽  
Printed Circuit Board ◽  
Ground Plane ◽  
Simulation Software ◽  
Circuit Board ◽  
Electromagnetic Simulation ◽  
Antenna Structure ◽  
Rfid Tag ◽  
Printed Circuit ◽  
Substrate Layer

A printed inverted-F antenna for RFID tag at 5.8 GHz is designed in this paper. The antenna structure consists of an inverted-F patch, a substrate layer, and a ground plane. To reduce costs, the FR4 is selected as the material of substrate layer, which is used commonly in PCB (Printed Circuit Board). Its relative permittivity is 4.4 and a loss tangent is 0.02. The inverted-F patch and ground plane are laid on/under the substrate layer respectively. The designed antenna is modeled, simulated and optimized by using HFSS (high frequency electromagnetic simulation software). Simulation results demonstrate that the printed inverted-F antenna can satisfy the requirements of RFID Tag applications.

Practical, economical, and simple technique for teaching microstrip antenna design

2019 ◽  
pp. 002072091989590
Author(s):  
Euclides Lourenço Chuma ◽  
Yuzo Iano
Keyword(s):  
Microstrip Antenna ◽  
Printed Circuit Board ◽  
Simple Technique ◽  
Simulation Software ◽  
Theory And Practice ◽  
Circuit Board ◽  
Antenna Design ◽  
Electromagnetic Simulation ◽  
Printed Circuit ◽  
Antenna Theory

This article presents a simple and economical technique for constructing a microstrip antenna for use in teaching the theory and practice of microstrip antenna design. The hardware components used to manufacture this microstrip antenna include an FR-4-printed circuit board, conductive copper tape, pencil, ruler, and scissors. Electromagnetic simulation software is an optional but helpful contribution to the process of teaching microstrip antenna theory.

scholarly journals Experimental Verification of LG WAVE and Ansoft HFSS Simulation Software Using a 2 x 2 Antenna Array with EBG Structure

2020 ◽  
Vol 8 (6) ◽  
pp. 5464-5468
Keyword(s):  
Antenna Array ◽  
Return Loss ◽  
Ground Plane ◽  
Simulation Software ◽  
Simulation Tool ◽  
Network Analyzer ◽  
Electromagnetic Band Gap ◽  
Ansoft Hfss ◽  
Measurement Results ◽  
Lg Wave

In this paper we are presenting the validation of the LG RF Simulation tool (WAVE) and HFSS simulation software’s through measurement results of the fabricated design, simulated in WAVE and HFSS simulation software’s. A 2 x 2 antenna array with Electromagnetic Band Gap (EBG) structure in the ground plane is simulated using WAVE and HFSS ver. 17.The prototype antenna was fabricated and characterization is carried out at CHRIST (Deemed to be University) Bangalore to know the performance of the antenna array. Return Loss and VSWR of the fabricated antenna are measured using Anritsu S820E Microwave Site Master Network Analyzer. Two - dimensional radiation patterns were plotted and compared with the simulated results obtained from WAVE and HFSS Software’s. From the results of HFSS simulation software we observed that EBG integrated array is exhibitinggainof7.089dB and Return loss of -16.2 dBat2.4GHz.Whereas the results obtained from WAVE simulation tool for the same design gave a peak gain of 5.03 dB and return loss of -12.8dB at 2.4 GHz. Measured gain of the designed array is 7.407 dB and return loss is -7.565 dB at 2.4 GHz.

scholarly journals Design of a Dual Band Rectangular Microstrip Antenna

2018 ◽  
Vol 3 (4) ◽  
pp. 438-443
Author(s):  
Ranjan Mishra ◽  
Raj Gaurav Mishra ◽  
R. K. Chaurasia
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Dual Band ◽  
Geometrical Parameters ◽  
Microstrip Patch ◽  
Ansoft Hfss ◽  
Rectangular Microstrip Antenna

The objective of the paper is to design and investigate a rectangular microstrip antenna that covers the band from 2.4 to 3.6 GHz. The proposition consolidates investigation of fundamentals of microstrip patch antenna. A progression of simulation in Ansoft HFSS (High Frequency System Simulation) has been carried out to discover the dual operating frequency. The qualities of the patch antenna rely on its different geometrical parameters. The investigation is carried in terms of two prime factors: Return loss and radiation pattern.

scholarly journals Design and Development of a 3dB Quadrature Patch Hybrid Coupler

2018 ◽  
Vol 7 (2.6) ◽  
pp. 217
Author(s):  
B Sekharbabu ◽  
K Narsimha Reddy ◽  
S Sreenu
Keyword(s):  
Integrated Circuit ◽  
High Frequency ◽  
Return Loss ◽  
Coupling Factor ◽  
Power Combiners ◽  
Measurement Results ◽  
Structure Simulation ◽  
Hybrid Coupler ◽  
Port Device ◽  
Circuit Technology

In this paper a -3 dB, 90-degreephase shift RF quadrature patch hybrid coupler is designed to operate at 2.4GHz. Hybrid coupler is a four-port device, that’s accustomed split a signaling with a resultant 90degrees’ section shift between output signals whereas maintaining high isolation between the output ports. The RF quadrature patch hybrid coupler is used in various radio frequency applications including mixers, power combiners, dividers, modulators and amplifiers. The desired hybrid coupler is designed using FR-4 substrate with 1.6mm height in High Frequency Structure Simulation (HFSS) and the same is fabricated and tested. The designed Hybrid coupler is examined in terms of parameters like insertion Loss, coupling factor and return Loss. The simulation and measurement results are compared. Major advantages of the RF quadrature patch hybrid couplers are that they are compatible with integrated circuit technology.

scholarly journals A Printed Wearable Dual-Band Antenna for Wireless Power Transfer

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1732 ◽  
Author(s):  
Mohammad Haerinia ◽  
Sima Noghanian
Keyword(s):  
High Frequency ◽  
Flexible Substrate ◽  
Wireless Power Transfer ◽  
Dual Band ◽  
Power Transfer ◽  
Wireless Power ◽  
Dual Band Antenna ◽  
Measurement Results ◽  
Receiving Antenna ◽  
Transmitting Antenna

In this work, a dual-band printed planar antenna, operating at two ultra-high frequency bands (2.5 GHz/4.5 GHz), is proposed for wireless power transfer for wearable applications. The receiving antenna is printed on a Kapton polyimide-based flexible substrate, and the transmitting antenna is on FR-4 substrate. The receiver antenna occupies 2.1 cm 2 area. Antennas were simulated using ANSYS HFSS software and the simulation results are compared with the measurement results.

An Improved Design of PIFA Antenna on Mobile Phone

2013 ◽  
Vol 718-720 ◽  
pp. 1634-1638 ◽  
Author(s):  
Li Yun Zhang ◽  
Zheng Ron Xiao ◽  
Jun Liao
Keyword(s):  
Mobile Phone ◽  
High Frequency ◽  
Return Loss ◽  
Antenna Design ◽  
Frequency Bandwidth ◽  
High Frequency Band ◽  
Simulation Results ◽  
Improved Design ◽  
High Band ◽  
Pifa Antenna

Firstly, the development and principle of PIFA antenna in mobile phone are introduced, and the typical PIFA antenna design is analyzed. The PIFA antenna simulation is based on HFSS software. It is found that the high frequency bandwidth of this kind of antenna is very narrow. Then related parameters are optimized, by increasing the parasitic branch in high frequency band. Simulation results show that the return loss of PIFA antenna in high band is improved and the antenna can be expanded in high band, and matched in low band simultaneously.

Simulation on Probe-Fed Rectangular Patch Antenna with the Minkowski Fractal Structure

2014 ◽  
Vol 971-973 ◽  
pp. 1148-1151
Author(s):  
Ruo Yan Han ◽  
Wei He ◽  
Ping Lu ◽  
He Ling Cai ◽  
Jiao Hong
Keyword(s):  
Resonant Frequency ◽  
Patch Antenna ◽  
High Frequency ◽  
Fractal Structure ◽  
Simulation Software ◽  
Electromagnetic Simulation ◽  
Rectangular Patch ◽  
Simulation Results ◽  
Application Requirements ◽  
Minkowski Fractal

The probe-fed rectangular patch antenna with the Minkowski fractal structure which for 2.45GHz was simulated by using high frequency electromagnetic simulation software HFSS V11.The Simulation results showed that it was similar to side-fed square patch antenna with the Minkowski fractal structure. The resonant frequency decreased with fractal iteration, and the size of the antenna could be miniaturized. And antenna pattern unchanged with fractal iteration mostly, which meet the application requirements basically.

scholarly journals Spiral Antenna Design and Analysis As a Tool to Measure Partial Discharge in High Voltage Equipment

2021 ◽  
Vol 328 ◽  
pp. 02006
Author(s):  
Deni Tri Laksono ◽  
Dedi Tri Laksono ◽  
Miftachul Ulum
Keyword(s):  
High Voltage ◽  
Return Loss ◽  
Partial Discharge ◽  
Electrical Equipment ◽  
Antenna Design ◽  
Spiral Antenna ◽  
Literature Study ◽  
Measurement Results

The high-voltage equipment often experiences disturbances caused by the age of the equipment, installation errors, partial discharge disturbances. Of these kinds of disturbances, partial discharge is one of the most common disturbances in high-voltage equipment which has a percentage level of 80% due to partial disturbance. In this study, a research related to electrical equipment that can detect partial discharge disturbances in these high-voltage equipment was done. The equipment is a spiral antenna, where the spiral antenna has several advantages in detecting partial discharge. In making the first partial discharge, a literature study will be carried out first, after that designing a spiral antenna using CST 2018 software to get the Return loss and VSWR parameters as desired, namely Return Loss less than -10 and VSWR less than 2. From the results of this study Spiral antenna is measured using VNA, the measurement results show the spiral antenna is in accordance with the parameters that have been determined, namely the return loss value = -30.8 and the VSWR value = between 1 to 1.5.

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