scholarly journals Antenna Array Based on Fabry–Perot Cavity with Mechanoelectrical Beam Steering

2021 ◽  
Vol 24 (5) ◽  
pp. 36-49
Author(s):  
Y. A. Litinskaya ◽  
S. V. Polenga ◽  
Y. P. Salomatov
Keyword(s):  
Antenna Array ◽  
Satellite Communication ◽  
Beam Steering ◽  
Fdtd Method ◽  
Scanning Angle ◽  
Low Profile ◽  
Fabry Perot ◽  
Directional Characteristics ◽  
Mobile Satellite ◽  
Antenna Systems

Introduction. Introduction. Low-profile effective antenna systems (AS) with maintained directional characteristics in a wide sector of scanning angles are required for satellite communication at mobile objects. This article investigates the directional characteristics of a subarray based on a Fabry–Perot cavity and an antenna array with mechanoelectrical beam steering.Aim. To investigate a Fabry–Perot based antenna array with mechanoelectrical beam steering and to estimate its gain and directivity at different scanning angles.Materials and methods. Computer simulations were carried out using the finite element method (FEM), finite difference time domain (FDTD) method and template based post-processing.Results. A subarray based on a Fabry–Perot cavity for an antenna array with mechanoelectrical beam steering was simulated. The efficiency of the subarray comprised at least 65 % in the 11.9…12.5 GHz frequency band. An antenna array based on a Fabry–Perot cavity with mechanoelectrical beam steering was developed and investigated. The calculated characteristics of the developed antenna array agreed well with those obtained experimentally. The gain degradation did not exceed 2.5 dB in the 0…70° scanning angle range. The advantages of using antenna elements based on a Fabry–Perot cavity and developing on their basis mobile satellite antenna systems with wide-angle scanning are noted.Conclusion. The use of a radiator based on a Fabry–Perot cavity and the development on it basis an antenna array with mechanoelectrical beam steering provides an antenna efficiency of no less than 0.5 with a gain degradation of no more than 2.5 dB in the scanning angle range 0…70° from 11.9 to 12.5 GHz.

Low-profile Antenna Array Based on Fabry–Perot Cavity with Mechanoelectrical Beam Steering

2021 ◽  
Author(s):  
Yelena A. Litinskaya ◽  
Stanislav V. Polenga ◽  
Yury P. Salomatov ◽  
Anastasia A. Baskova
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Low Profile ◽  
Fabry Perot

scholarly journals EVALUATION OF THE FEASIBILITY OF AN ACTIVE PHASED ARRAY ANTENNA IN THE TERMINAL OF THE EXPRESS-RV SATELLITE COMMUNICATION SYSTEM

T-Comm ◽  
2021 ◽  
Vol 15 (8) ◽  
pp. 13-21
Author(s):  
Victor S. Aleshin ◽  
Keyword(s):  
Communication System ◽  
Satellite Communication ◽  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Scanning Angle ◽  
Phased Array Antennas ◽  
Array Antennas ◽  
Mobile Satellite ◽  
Antenna Systems

The basic principles of building a promising domestic regional satellite communication system “Express-RV”, based on the highly elliptical orbit “Molniya” and intended for broadband access of civil sector subscribers to various public communication networks, in particular to the Internet, are considered. The main technical requirements for the antenna systems of mobile mobile satellite communication terminals of the Express-RV system are formulated. The necessity of using active phased array antennas for a number of types of such terminals is justified. A brief overview of the principles of implementation and examples of the design of microstrip active phased array antennas, including their elementary emitters and individual modules, are given. The problem of the occurrence of the blinding effect inherent in flat microstrip gratings made on dielectric substrates is noted; measures to compen-sate for this effect are considered. The possibility of expanding the maximum scanning angle of a narrowly directed beam of an active phased array antenna by using a magnetically controlled scattering dielectric lens, as well as creating segment-dome structures of antenna systems in relation to mobile terminals of mobile satellite communications of the “Express-RV” system, is shown. Simple analytical relations are derived that allow us to estimate the number of elementary emitters required for the implementation of a receiving-transmitting active phased array antenna with specified technical characteristics: gain and maximum scanning angle; the corresponding dependencies are given. The cost of creating an antenna system based on an active phased array is estimated.

scholarly journals Desain dan Implementasi Antena Mikrostrip VSAT Bergerak pada Frekuensi Downlink Ku Band

2018 ◽  
Vol 4 (2) ◽  
pp. 160
Author(s):  
HANNY MADIAWATI ◽  
JOKO SURYANA
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Satellite Communication ◽  
Large Bandwidth ◽  
Microstrip Antenna Array ◽  
Motor Control System ◽  
Mobile Satellite ◽  
Mobile Satellite Communication ◽  
Satellite Antennas ◽  
Ku Band

ABSTRAKKebutuhan sistem komunikasi satelit bergerak pada pita Ku sekarang ini mulai berkembang di Indonesia. Ku-band memiliki ketersediaan lebar pita yang besar dan memilikipanjang gelombang yang lebih pendek. Panjang gelombang yang pendek berpengaruh pada dimensi perangkat yang lebih kecil.Pada umumnya antena satelit untuk sistem yang bergerak menggunakan parabola namun penggunaannya pada kendaraanterkendalaberatnya masa keseluruhan sistem sehingga diperlukan sistem kendali motor dengan harga mahal. Oleh karena itu, penggunaan antena mikrostrip dengan metode antena susun (array) menjadi solusi yang dapat memungkinkan kendaraan tetap bergerak dengan baikdengan tetap menjaga kelangsungan hubungan telekomunikasi selama bergerak.Pada penilitian ini, suatu antena mikrostrip penerima dengan menggunakan metode array dengan jumlah patch2x16 yang mampu bekerja pada pita Ku-Band telah dirancang dan direalisasikan. Antena ini bekerja pada frekuensi 11,9 GHz dengan gain sebesar18,69 dB.Kata kunci: komunikasi satelit, Ku-Band, antena mikrostrip, antena mikrostrip array.ABSTRACTNeeds of mobile satellite communication system at Ku Band are currently being widely grown in Indonesia. Ku-band has a large bandwidth availability and has a shorter wavelengt. The short wavelength effect on the smaller device dimensions. In general, satellite antennas for mobile system uses parabolic antenna but if its use on vehicles the obstacle is weighing of the whole system so it takes motor control system with an expensive price. Therefor, the use of microstrip antenna by using antenna array is a solution that can allow the vehicle to keep moving well while maintaining the continuity of telecommunication links during the move. In this research, a microstrip antenna array receiver using the patch number 2x16 are able to work in the Ku-band has been design dan realized. The antenna work at 11.9GHz with a gain 18,69dB.Keywords: satellite communication, Ku-Band, microstrip antenna, array microstrip antenna.

scholarly journals Development and Design Of 8x1 Micro Strip Antenna Array for Military/Satellite Communication

2018 ◽  
Vol 7 (4.36) ◽  
pp. 409 ◽  
Author(s):  
A. Mary Joy Kinol ◽  
A. Sahaya Anselin nisha
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Satellite Communication ◽  
Low Cost ◽  
Single Layer ◽  
Beam Width ◽  
Dielectric Substrate ◽  
Low Dielectric ◽  
Low Profile ◽  
Quarter Wave

Antenna design has become as established field of research in recent years. The most important feature of MPA is low cost, low profile and single layer configuration. The frequency band at which the patch antenna operates is 12-1GHz and antenna array are fielded by Microstrip field line incorporated with 50 Ω impedance. In order to achieve enhancement in gain, directivity, bandwidth and return loss Quarter wave transformer and power divider are used. Microstrip patch antenna, employed with highly reflective properties   is presented with the results of modeling, design and simulation. To illustrate this techniques a KU band 2×1, 4×1, 8×1antenna array integrated with series corporate feeding network are designed and simulated. The maximum gain of14.56dB at 10 GHz, the impedance beam width is 86.72% and 99% efficiency is arrived using this technique. Maximum radiation pattern is achieved by using low dielectric substrate of RT-DURROID. The design is verified using HFSS software, used to simulate the antenna array. 

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