scholarly journals Double-Dielectric Microstrip Ultrahigh-Frequency Antenna for Digital Terrestrial Television

2020 ◽  
Vol 10 (23) ◽  
pp. 8640
Author(s):  
Antonio Navarro ◽  
Pedro Mostardinha ◽  
Tiago Varum ◽  
Joao Matos ◽  
Stanislav Maslovski
Keyword(s):  
Microstrip Antenna ◽  
Small Volume ◽  
Linear Array ◽  
Dielectric Substrate ◽  
Patch Antennas ◽  
Central Frequency ◽  
Design Choice ◽  
Receiving Antenna ◽  
Digital Terrestrial Television ◽  
Delivery Medium

In many countries, terrestrial broadcasting is the main delivery medium for television. In this paper, we propose a small-volume practical receiving antenna. Our design consists of a linear array of three vertically placed patch antennas which increase antenna gain. The antenna has a double-dielectric substrate (FR4 + air) in order to increase efficiency and bandwidth. In this paper, we also discuss simulations and practical results, and demonstrate that the proposed double-dielectric microstrip antenna is a viable design choice for digital terrestrial TV (DTT) reception. The designed antenna reached a gain of 10.5 dBi at the desired central frequency of 754 MHz.

Design of the Miniaturized Receiving Antenna Applied in the Detection of Corona Discharge Signals

2011 ◽  
Vol 105-107 ◽  
pp. 2188-2193
Author(s):  
Xiao Han ◽  
Xi Chen ◽  
Peng Fei Li
Keyword(s):  
Corona Discharge ◽  
Transmission Lines ◽  
Small Volume ◽  
Industrial Applications ◽  
Patch Antennas ◽  
Negative Corona Discharge ◽  
Receiving Antenna ◽  
Security Inspection ◽  
The Time Domain ◽  
To Receive

Corona discharge is a kind of self maintained discharges that occurs in the extremely uneven electric field which often happens in the industrial and daily living environments. In this paper, we study the characteristics of corona discharge, especially the ones in the time domain and frequency domain of negative corona discharge. Based on the analyzed characteristics mentioned above, we design and optimize a kind of patch antennas, which has the advantages of small volume compared to the traditional one used to receive the signals generated by corona discharge. This new antenna can be used in the field of security inspection on high voltage transmission lines applied in the industrial applications.

scholarly journals Simulation of microstrip radio altimeter antenna for aircraft

Doklady BGUIR ◽  
2021 ◽  
Vol 19 (5) ◽  
pp. 5-12
Author(s):  
A. V. Gusinski ◽  
M. S. Svirid ◽  
D. A. Kondrashov ◽  
A. A. Kopshai ◽  
D. G. Bulavko ◽  
...  
Keyword(s):  
Microstrip Antenna ◽  
Vertical Plane ◽  
Dielectric Substrate ◽  
Side Lobe ◽  
Antenna Gain ◽  
Practical Application ◽  
Frequency Range ◽  
Electrical Parameters ◽  
Receiving Antenna ◽  
Domestic Ceramic

The purpose of the article is to carry out mathematical modeling of the main characteristics and parameters of a microstrip antenna, the dielectric substrate of which is created from a domestic ceramic sample and to substantiate the use of a microstrip antenna as a transmitting and receiving antenna in a radio altimeter. It is shown that a microstrip antenna on a ceramic material substrate with a relative permittivity ε = 9.6 and a thickness of 0.2 mm has good electrical parameters in the frequency range of 31.5–33.5 GHz. Including the width of the antenna radiation pattern at the level of –3 dB is 12.5 degrees in the horizontal plane and 26.7 degrees in the vertical plane. In this case, the antenna gain is 17 dB and the level of the first side lobe is –20 dB relative to the main antenna lobe. Also the practical application of microstrip array antennas inphase as a transmitting and receiving antenna for a radio altimeter installed on aircraft is described in the article. The range of the altimeter reaches 300 m.

scholarly journals Improving the Performance of a Microstrip Antenna by Adding a Slot into Different Patch Designs

2021 ◽  
Vol 11 (4) ◽  
pp. 7469-7476
Author(s):  
M. J. Hakeem ◽  
M. M. Nahas
Keyword(s):  
Microstrip Antenna ◽  
Low Cost ◽  
Ground Plane ◽  
Front Surface ◽  
Dielectric Substrate ◽  
Patch Antennas ◽  
High Frequency Structure Simulator ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Antenna Performance

Microstrip patch antennas are attractive for communication applications due to their small size, low cost, and easy fabrication. Regardless of the diverse usage of these antennas, their bandwidth and efficiency are still limited and need to be improved. Therefore, this paper aims to enhance the bandwidth and efficiency of a microstrip antenna by inserting a slot into various patch designs. Flame Retardant (FR4) material is used in the dielectric substrate and the antenna is fed by a microstrip line. Virtually, the antenna performance is attempted to be optimized through empirical investigations of feedline lengths, slot sizes and positions, and ground plane dimensions and locations. To achieve the results, the High Frequency Structure Simulator (HFSS) is used, and the paper concludes by showing that the antenna performance is enhanced by the slot, and the return loss is significantly reduced when the ground plane is moved to the front surface of the antenna.

scholarly journals Microstrip Antenna Design for Femtocell Coverage Optimization

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Afaz Uddin Ahmed ◽  
M. T. Islam ◽  
Rezaul Azim ◽  
Mahamod Ismail ◽  
Mohd Fais Mansor
Keyword(s):  
Microstrip Antenna ◽  
Dielectric Substrate ◽  
Antenna Design ◽  
Data Link ◽  
Network Layer ◽  
Coverage Optimization ◽  
Physical Data ◽  
Femtocell Network ◽  
Network Interference

A mircostrip antenna is designed for multielement antenna coverage optimization in femtocell network. Interference is the foremost concern for the cellular operator in vast commercial deployments of femtocell. Many techniques in physical, data link and network-layer are analysed and developed to settle down the interference issues. A multielement technique with self-configuration features is analyzed here for coverage optimization of femtocell. It also focuses on the execution of microstrip antenna for multielement configuration. The antenna is designed for LTE Band 7 by using standard FR4 dielectric substrate. The performance of the proposed antenna in the femtocell application is discussed along with results.

Magneto‐dielectric substrate‐based microstrip antenna for RFID applications

2017 ◽  
Vol 11 (10) ◽  
pp. 1389-1392 ◽  
Author(s):  
Jamal Zaid ◽  
Mohammadmahdi Farahani ◽  
Tayeb A. Denidni
Keyword(s):  
Microstrip Antenna ◽  
Dielectric Substrate ◽  
Rfid Applications

scholarly journals Formation of Fractal Antenna Array for Multiband Applications

2019 ◽  
Vol 8 (4) ◽  
pp. 3257-3263
Keyword(s):  
Wireless Communication ◽  
Antenna Array ◽  
Microstrip Antenna ◽  
Dielectric Substrate ◽  
High Gain ◽  
Substrate Material ◽  
Vital Role ◽  
Fractal Antenna ◽  
Self Similarity ◽  
Wireless Applications

Antennas play a vital role in wireless communication; a thirst of excellence in this area is unending. Proposed work describes a concept of fractal multiband antenna designed in the hexagon shape. Basically fractal is the concept used in Microstrip antenna for giving better results than conventional Microstrip antenna. By using hexagonal fractal antenna we can possibly achieve the radiation pattern with high gain. The coaxial feeding is used and multiple hexagons are interconnected in array for maintaining conductivity and to preserve electrical self similarity. Hexagonal antenna is used for different wireless applications. The proposed antenna frequency band covers a large number of wireless communication applications including GPS (1.6GHz), Bluetooth (2.4 GHz) & WLAN (3.6GHz). Antenna design has been designed and simulated by using the software Ansoft’s HFSS and parameters like bandwidth return loss, directivity, VSWR are analyzed. Fabrication of the antenna is done by using wet-etching method, on FR-4 dielectric substrate material. Experimental results are taken on Vector Network Analyzer (VNA) and those obtained results were compared with simulated results. The hexagonal fractal antenna array is found to possess predictable multiband characteristics.

Recycled polyolefin as dielectric substrate for patch antennas

2019 ◽  
Vol 26 (5) ◽  
pp. 1720-1726
Author(s):  
Prabakar Parthiban ◽  
Boon-Chong Seet ◽  
Xue Jun Li
Keyword(s):  
Dielectric Substrate ◽  
Patch Antennas

Patch antennas utilizing semi-insulating SiC for monolithic integration of the antenna subsystem on a SiC chip

2014 ◽  
Vol 1693 ◽  
Author(s):  
Tutku Karacolak ◽  
Rooban V. K. G. Thirumalai ◽  
Erdem Topsakal ◽  
Yaroslav Koshka
Keyword(s):  
Silicon Carbide ◽  
Computer Simulations ◽  
Return Loss ◽  
Dielectric Substrate ◽  
Experimental Results ◽  
Patch Antennas ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Semiconductor Chip ◽  
Good Agreement

ABSTRACTSemi-insulating (SI) silicon carbide (SiC) was evaluated as a candidate material for dielectric substrate for patch antennas suitable for monolithic antenna integration on a SiC semiconductor chip. Computer simulations of the return loss were conducted to design microstrip patch antennas operating at 10 GHz. The antennas were fabricated using SI 4H-SiC substrates, with Ti-Pt-Au stacks for ground planes and patches. A good agreement between the experimental results and simulation was obtained. The radiation performance of the designed SiC based patch antennas was as good as that normally achieved from antennas fabricated using conventional RF materials such as FR4 and Rogers. The antennas had the gain around 2 dBi at 10 GHz, which is consistent with the conventional antennas of a similar size.

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