26 Hits in 8.1 sec

Dual band microstrip antenna with non regular polygonal patch for satellite applications

Mohammad Mosalanejad, Ali Farahbakhsh, Gholamreza Moradi
2012 IEICE Electronics Express  
This method is used to design a dual band microstrip antenna for satellite application, which has resonant frequencies at 8.6 and 13 GHz.  ...  In this method, non-regular polygonal patch is used to design dual band microstrip antenna and particle swarm optimization (PSO) technique and ant colony optimization (ACO) are used to optimize the shape  ...  Conclusion A novel method to design dual band microstrip antenna using non regular polygonal patches is proposed.  ... 
doi:10.1587/elex.9.1290 fatcat:kcloc4qsmzbqzdgohvmsvre3ve

Design, Simulation and Fabrication of Multiband Antenna using HFSS

2019 International journal of recent technology and engineering  
In this paper Multiband Octagonal Patch Antenna has been designed by ring slot technique for working in nine different frequencies presented in multi band C-band, X-band, Ku-band, K-band, Ka-band, Q-band  ...  Main applications of these bands are used in terrestrial microwave communications. In this research work, the performance of octagonal patch antenna operating at 7 different bands is analyzed.  ...  Ruixing Zhi [1] presented a microstrip multiband antenna for X-band satellite communications.  ... 
doi:10.35940/ijrte.b3775.078219 fatcat:cju3qxd2rfhsdaci64iuawteba

A Circularly Polarized Semi-Symmetric Curvature Slot Fractal Antenna for Gain Enhancement

Bandhakavi. S. Deepak, Boddapati. T. P. Madhav, Badisa Anil Babu, Kosuru Sri Rama Murthy
2021 Journal of Engineering Science and Technology Review  
A Novel Semi-Symmetric curvature slot impregnated Decagonal shaped microstrip patch antenna with miniaturized dimensions of 20 x 12 mm 2 has been designed and analysed for its working in the frequency  ...  This paper focuses more on how geometrical changes in the slots affects the impedance, radiation pattern, gain and polarization of the microstrip patch antenna with Defected Ground Structure (DGS).  ...  Mohd Gulman Siddiqui [3] has analysed the Koch-Sierpinski Fractal Microstrip antenna for C/X/Ku-band applications.  ... 
doi:10.25103/jestr.143.14 fatcat:t5tktp7wpbe7nhvelveuizbvhy

Nanomaterial Fabricated Patch Antenna for Super High Frequency Applications

Dr. Ambresh Prabhakar Ambalgi
2021 Zenodo  
Nanomaterial Fabricated Patch Antenna for Super High Frequency Applications: D.Sc. Thesis.  ...  Settapong Malisuwan,[91] presents a rectangular microstrip patch antenna for Ku-band satellite communication applications.  ...  ., [72] presented a circular patch microstrip antenna for dual band (1.66 GHz and 2.777GHz) opertaion.  ... 
doi:10.5281/zenodo.5148488 fatcat:cdoqxf3odzgozgpd65fnx7wexm

ON-OFF Body Ultra-wideband (UWB) Antenna for Wireless Body Area Networks (WBAN): A Review

Sarmad Nozad Mahmood, Asnor Juraiza Ishak, Alyani Ismail, Azura Che Soh, Zahriladha Zakaria, Sameer Alani
2020 IEEE Access  
On the other hand, this paper covered both wearable and Non-wearable UWB antenna designs and applications with respect to their substrate characteristics.  ...  The involvement of the human body in such a device poses immense difficulties for both the architecture of the wearable antenna and the broadcast model.  ...  optimum choice for UWB applications and dual-band technologies.  ... 
doi:10.1109/access.2020.3015423 fatcat:5lapldbjafemloywtny4nmhmxy

Methods to Design Microstrip Antennas for Modern Applications [chapter]

K. Siakavara
2011 Microstrip Antennas  
The resulting configuration is E-shaped or suchlike and the design can be applied to the antennas with rectangular, circular or triangular patches (Fig. 4) [22]- [24] .  ...  Slit loaded patches By slit cutting at the boundaries, instead of slot cutting on the surface, of the patch, similar broadband operation can be obtained.  ...  a dual-band microstrip structure with multilayered substrate.  ... 
doi:10.5772/14676 fatcat:4jazc5o7vjgdbeqjhbhujxepou

Table of Contents

2020 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting  
doi:10.1109/ieeeconf35879.2020.9330334 fatcat:7evmcvxz3bbjzi2rx3tftbbdje

ICMMT 2020 Table of Contents

2020 2020 International Conference on Microwave and Millimeter Wave Technology (ICMMT)  
Array Yimin Gu, Jinxin Du, Yingjie Yu, Xue-Xia Yang (Shanghai University) 14:45 -15:00 K/Ka Dual-Band Dual-Circular-Polarized Coplanar Phased Array Antenna with High Isolation for Satellite Communication  ...  Design of a Wide-Band Front-End for a High Speed Data Acquisition Dual-Band Dual-Mode Dual-Polarized Shared-Aperture Antenna With Large Frequency Ratio Yiling Shi, Wenquan Cao, Boxing Li, Ronggang Huang  ... 
doi:10.1109/icmmt49418.2020.9386465 fatcat:5xm3fcufijafpdc2bxcnrbrjfm

Isolation enhancement of planar disc antenna and ground plane in UWB applications

E. Ebrahimi, O. Litschke, R. Baggen, P.S. Hall
2010 Electronics Letters  
To demonstrate the versatility of this concept, the possibility of frequency reconfiguration is explored for narrowband mode using matching circuits with fixed elements.  ...  As a result the radiation pattern, gain and group delay are stabilised across the band. ii  ...  Fig. 3 . 3 12 Some dual band top patches for PIFA. Dual band is achieved by creating two resonant paths on the patch by cutting slots and slits [48] . Fig. 3 . 3 12).  ... 
doi:10.1049/el.2010.2775 fatcat:fwnvm55bercfjojffhzcbg5cii

The High-Resolution Digital-Beamforming Airborne SAR System DBFSAR

Andreas Reigber, Eric Schreiber, Kurt Trappschuh, Sebastian Pasch, Gerhard Müller, Daniel Kirchner, Daniel Geßwein, Stefan Schewe, Anton Nottensteiner, Markus Limbach, Alicja Schreiber, Tobias Rommel (+7 others)
2020 Remote Sensing  
It is operating at X-band and features 12 simultaneous receive and 4 sequential transmit channels with 1.8 GHz bandwidth each, flexible DBF antenna setups and is equipped with a high-precision navigation  ...  Airborne SAR sensors with digital beamforming capabilities are essential tools to research and validate this important technology for later implementation on a satellite.  ...  SAR images of the Earth are now acquired on a regular basis by an increasing number of satellites and form the basis for a wide range of remote sensing applications and services.  ... 
doi:10.3390/rs12111710 fatcat:3wdymkmmczf4pp2yb2uxm7qsya

Characterization of Vehicle Penetration Loss at wireless communication frequencies

Usman Tahir Virk, Katsuyuki Haneda, Veli-Matti Kolmonen, Pertti Vainikainen, Yrjo Kaipainen
2014 The 8th European Conference on Antennas and Propagation (EuCAP 2014)  
The research involves ultra-wideband (UWB) car measurement campaign for the frequency range of 0.6-6.0 GHz in an indoor industrial environment at an isolated storage facility in Helsinki utilizing a regular  ...  In order to quantify the effects of automotive window films on communication signals inside a vehicle, this research study was undertaken with industrial cooperation.  ...  The first antenna configuration was a uniform cylindrical 64 elements (4 x 16) dual-polarized square patch antenna array (UCA) which was intended to be used for directional estimation of the channel.  ... 
doi:10.1109/eucap.2014.6901733 fatcat:kgecqhhg2zcptnq7ahbkjxxkie

Low-frequency computational electromagnetics for antenna analysis

E.K. Miller, G.J. Burke
1992 Proceedings of the IEEE  
The TD wave equation for E(r,t) can be derived from (1) to obtain V×V×E(r,t + c Ot =-g_.J(r,t)-VxK(r,t) with a similar equation for H(r,t), where c = 1/_ge is the speed of light in the medium.  ...  Antenna Models, Proc.  ...  An n-sided regular polygon, for example, modeled using one segment per side then has only n, rather than n2, different matrix coefficients, producing an impedance matrix called circulant.  ... 
doi:10.1109/5.119565 fatcat:hkpowybymbg33kg5r7ihpn4nry

Tunable optical delay line based on single-sideband suppressed-carrier modulation

J. Palaci, B. Vidal
2013 IEEE Photonics Technology Letters  
DRAs consist of a set of individual antenna elements working simultaneously as an array antenna with an equivalent electrical size of a bigger single antenna.  ...  such as beamforming networks for direct radiating array (DRA) antennas and multilevel quadrature modulation.  ...  Application Scenario The study of optical Butler Matrices is going to target the control of an array of antennas for broadband communications in satellites.  ... 
doi:10.1109/lpt.2012.2227697 fatcat:e5uasvwjd5ckvcllvynughtbg4

Study of mm-wave Fixed Beam and Frequency Beam-Scanning Antenna Arrays

Zeeshan Ahmed
The first part of the thesis presents a microstrip patch array antenna with high gain in the upper 26 GHz range for 5G applications.  ...  A comparison with equal sized microstrip patch array is also presented to analyse the performance. The antenna operates in the upper 26 GHz band and has two frequency bands in close proximity.  ...  Dual-Band Millimeter-Wave Grid Array Antenna In this chapter, 20 rectangular loops are arranged in a quasi-rhombic shaped symmetric microstrip GAA configuration for dual band mm-wave applications.  ... 
doi:10.21427/jmsy-ge93 fatcat:6p5bdftndvdt7hdz4pmr5n7uzq

Claude Chappe and the first telecommunication network (without electricity)

Stefano Selleri
2017 Radio Science Bulletin  
This study was supported by the Russian Foundation for Basic Research (grant no.  ...  Acknowledgments The author very much thanks the anonymous reviewers for their comments, which helped to make the text clearer.  ...  The narrow-band microstrip antenna was charged by a high-permittivity superstrate. In this manner, the antenna-body coupling was signifi cantly reduced.  ... 
doi:10.23919/ursirsb.2017.8113174 fatcat:xz27ckavmbajfefnxzvkzjywba
« Previous Showing results 1 — 15 out of 26 results