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

Author(s):  
Euclides Lourenço Chuma ◽  
Yuzo Iano

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.

2013 ◽  
Vol 427-429 ◽  
pp. 1293-1296
Author(s):  
Yan Zhong Yu ◽  
Ji Zhen Ni ◽  
Xian Hui Li

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.


2014 ◽  
Vol 5 (1) ◽  
pp. 737-741
Author(s):  
Alejandro Dueñas Jiménez ◽  
Francisco Jiménez Hernández

Because of the high volume of processing, transmission, and information storage, electronic systems presently requires faster clock speeds tosynchronizethe integrated circuits. Presently the “speeds” on the connections of a printed circuit board (PCB) are in the order of the GHz. At these frequencies the behavior of the interconnects are more like that of a transmission line, and hence distortion, delay, and phase shift- effects caused by phenomena like cross talk, ringing and over shot are present and may be undesirable for the performance of a circuit or system.Some of these phrases were extracted from the chapter eight of book “2-D Electromagnetic Simulation of Passive Microstrip Circuits” from the corresponding author of this paper.


Author(s):  
Chin-Ming Hsu ◽  

This paper mainly develops a practical learning printed circuit board (PCB) soldering/de-soldering simulation software to be the reference of the specialized characteristic curriculum for a school. The proposed learning simulation software can train students with the soldering knowledge, the soldering technology, the electronic component identification, and the usage of the instruments. The research aims at inspiring students to be interested in circuitry soldering technology and have different thoughts on electronic/information/mechanical related technology applications. In this paper, the developed practical learning simulation software utilizes Visual Basic programming language as the developing tool and adopts the Bluetooth voice- activated tracking self-propelled vehicle and the number guessing game main control PCBs as the circuitry soldering training targets which was developed by Taiwan Embedded Microcontroller Development Institution (TEMI). The proposed simulation tool has been used as the learning exploration with the students at Kao Yuan University in Kaohsiung City, Taiwan. According to the experimental results, the developed simulation tool could provide three contributions. First, it can be an interactive- and interesting-oriented learning tool. Second, it can cultivate and inspire students learning soldering technology efficiently and effectively to meet the needs in the industry. Third, it can cultivate more professional and technical students actively participate in seeking solutions to problems.


2019 ◽  
pp. 26-30 ◽  
Author(s):  
M. S. Batutina ◽  
A. A. Kuzmin ◽  
A. N. Mikhailov

The paper considers an embodiment of the antenna design based on a flat non‑axis‑symmetrical transreflector made by using multilayer printed circuit board technology. The construction principle of a flat non‑axis‑symmetrical transreflector by cutting it from the flat polarizing structure is given. The form of the flat multi‑layer non‑axisymmetric transreflector board is determined by the projection of the non‑axisymmetric parabolic transflector onto a plane perpendicular to the focal axis. An electrodynamic model of the antenna with a flat non‑axis‑symmetrical reflector to study the radiation characteristics in the UHF range was constructed. A comparative analysis of the radiation characteristics of antennas on the basis of planar multilayer axisymmetric and flat multilayer non‑axis‑symmetrical transreflectors was performed. A number of technological advantages of the developed flat structure over a non‑axis‑symmetrical parabolic transreflector due to use of the known technology of multilayer printed circuit boards is also described.


Author(s):  
Ashish Raj ◽  
Nisha Gupta

Abstract The radiation characteristics of the microstrip antenna (MSA) on the frequency selective surface (FSS) based absorbing layer is presented in this paper. It is observed that an absorbing layer placed between the MSA configuration and the ground plane helps in controlling the radiation characteristics of the antenna. It not only reduces the back lobe but also reduces the beamwidth and gain of the antenna simultaneously. This is because the absorbing layer absorbs some amount of power radiated by the antenna in both forward and backward directions. The proposed design is simulated using Ansys HFSS electromagnetic simulation software and the results are validated by comparing it with the results obtained from the equivalent circuit approach as well as experimental results. The effect of absorber on radiation characteristics of the radiator demonstrates its potential use in suppressing the radiation from the printed circuit board traces.


2018 ◽  
Vol 7 (3.32) ◽  
pp. 11
Author(s):  
Wen Cheng Lai ◽  
Lin Chuan Tsai ◽  
Chia Wen Li

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.  


Micromachines ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 238 ◽  
Author(s):  
Zhao ◽  
Wang ◽  
Wen

A silicon-on-insulator (SOI) piezoresistive three-axis acceleration sensor, consisting of four L-shaped beams, two intermediate double beams, two masses, and twelve piezoresistors, was presented in this work. To detect the acceleration vector (ax, ay, and az) along three directions, twelve piezoresistors were designed on four L-shaped beams and two intermediate beams to form three detecting Wheatstone bridges. A sensitive element simulation model was built using ANSYS finite element simulation software to investigate the cross-interference of sensitivity for the proposed sensor. Based on that, the sensor chip was fabricated on a SOI wafer by using microelectromechanical system (MEMS) technology and packaged on a printed circuit board (PCB). At room temperature and VDD = 5.0 V, the sensitivities of the sensor along x-axis, y-axis, and z-axis were 0.255 mV/g, 0.131 mV/g, and 0.404 mV/g, respectively. The experimental results show that the proposed sensor can realize the detection of acceleration along three directions.


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.


2021 ◽  
Vol 1335-8243 (1338-3957) ◽  
pp. 25-29
Author(s):  
Tomáš LENGER ◽  
◽  
Alena PIETRIKOVÁ ◽  

This paper is focused on Near-Field Communication (NFC), which is one of the most popular wireless communication. Although the NFC was developed in recent years, it is inseparable part of the everyday activities. NFC antenna is the key element for the realization of the NFC. This paper deals with the design of the miniaturized NFC antenna. Basic equations for coil inductance calculation, which are necessary for the NFC antenna design are presented as well. This paper also focuses on the influence of the coil’s aspect ratio to its inductance. The aim of this paper was the optimization of the NFC antenna dimensions. NFC antenna dimensions were calculated according to dimension of microcontroller Printed Circuit Board (PCB), so the antenna can be laminated directly to microcontroller PCB.


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