3 edition of Radiation and scattering from cylindrically conformal printed antennas found in the catalog.
Radiation and scattering from cylindrically conformal printed antennas
Leo C. Kempel
by The University of Michigan, Radiation Laboratory, Dept. of Electrical Engineering and Computer Science, National Aeronautics and Space Administration, National Technical Information Service, distributor in Ann Arbor, Mich, [Washington, DC, Springfield, Va
Written in English
|Statement||Leo C. Kempel and John L. Volakis.|
|Series||[NASA contractor report] -- NASA CR-195546., NASA contractor report -- NASA CR-195546.|
|Contributions||Volakis, John L., United States. National Aeronautics and Space Administration.|
|The Physical Object|
radiation characteristics of conformal reﬂectarray antennas on singly curved platforms are studied and the performances of these designs are compared with planar designs. It is demonstrated that a conformal reﬂectarray antenna can be a suitable choice for applications requiring high-gain antennas on curved platforms. esthetic-tokyo.comuction Printed. AN APPROXIMATE UTD RAY SOLUTION FOR THE RADIATION AND SCATTERING BY ANTENNAS NEAR A JUNCTION BETWEEN TWO DIFFERENT THIN PLANAR MATERIAL SLAB ON GROUND PLANE T. Lertwiriyaprapa Department of Teacher Training in Electrical Engineering Faculty of Technical Education King Mongkut’s University of Technology North Bangkok.
Electromagnetic Scattering from Slightly Rough Surfaces with Inhomogeneous Dielectric Proﬁles Kamal Sarabandi, Senior Member, IEEE and Tsenchieh Chiu Abstract— Remote sensing of soil moisture using microwave sensors require accurate and realistic scattering models for rough soil surfaces. In the past, much effort has been devoted to the. analysis method for calculating the radiation and the scattering characteristics of the broadband antennas. It is important to calculate the electric characteristics of the antennas, because aircrafts, ships, and vehicles have some types of antennas. In general, a .
Simulation of Radiation Characteristics for Cylindrical Conformal Phased Array Rongcang Han School of Informatics, Linyi Normal University, Linyi , China E-mail: [email protected] Abstract FEKO is a 3D simulation tool for the analysis of electromagnetic fields. FEKO can solve the . Thisworkpresentsaspherical-wavesource-scattering-matrixanalysisofantennasand antenna-antenna interactions analogous to Kern's treatment [25, 26]of plane-wave scattering matrices. 1 In this regard,therepresentation for a single antenna is presented;then.
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Radiation and scattering conformal printed antennas from cylindrically Leo C. Kempel and John L. Volakis National Aeronautics and Space Administration Moffett Field CA Naval Weapons Center China Lake CA Mission Research Corp.
Research Blvd. Dayton, OH I Z 0 r-April THE UNIVERSITY OF MICHIGAN Radiation Laboratory. Radiation and scattering from cylindrically conformal printed antennas Radiation and scattering from cylindrically conformal printed antennas by Kempel, Leo C.; Volakis, John L.
Publication date These two approaches will be contrasted and used to study the scattering and radiation behavior of several useful antenna configurations. Get this from a library. Radiation and scattering from cylindrically conformal printed antennas. [Leo C Kempel; John L Volakis; United States. National Aeronautics and Space Administration.].
Get this from a library. Radiation and scattering from printed antennas on cylindrically conformal platforms. [Leo C Kempel; John Leonidas Volakis; Sunil Bindiganavale; United States. National Aeronautics and Space Administration.].
Radiation and scattering tradeoff design for conformal arrays Article in IEEE Transactions on Antennas and Propagation 51(5) - · June with 9 Reads How we measure 'reads'.
A technique for characterizing and designing complex conformal antennas flush-mounted on a singly-curved surface is presented. This approach is based on the hybrid finite element–boundary integral (FE–BI) method. A related method was proposed in the past utilizing cylindrical-shell finite element and roof-top rectangular basis functions for the boundary integral.
Although that method Cited by: 2. Radiation and Scattering by Cavity-backed Antennas on a Circular Cylinder Leo C. B:empel and John L. Volakis July Abstract Conformal arrays are popular antennas for aircraft and missile platforms due to their inherent low weight and drag properties.
How-ever, to date there has been a dearth of rigorous analytical or nu. Weile Cylindrical Radiation and Scattering. Cylindrical Radiation Scattering Sources of Cylindrical Radiation Green’s Function and Far Field Wave Transformations Far Fields We can compute the far ﬁelds using the deﬁnitions of A and F.
The results are similar to three-dimensional results. This paper investigates the feasibility of designing reflectarray antennas on conformal surfaces. A generalized analysis approach is presented that can be applied to compute the radiation performance of conformal reflectarray antennas.
Using this approach, radiation characteristics of conformal reflectarray antennas on singly curved platforms are studied and the performances of these designs Cited by: The paper presents a convenient and efficient approach, based on the reciprocity theorem, for calculating the radiation patterns of arbitrarily shaped microstrip antennas with dielectric substrate.
Abstract. Radiation properties of conical log-spiral antennas (CLSA) conformal on dielectric cones are analyzed by using the hybrid finite element and boundary integral equation method (FE-BI) in the esthetic-tokyo.com: Huilin Hu, Yunhua Tan, Bocheng Zhu, Lezhu Zhou.
scattering and re-radiation by a receiving antenna through a detailed analysis of representatives from the simplest class of possible antennas, 1-dimensional antennas. Complete, exact solutions for the electromagnetic fields associated with such 1-dimensional environment and antenna structures can be obtained using only elementary analysis and.
Numerical Simulations of Radiation and Scattering Characteristics of Dipole and LOOP Antennas. By Oleg A. Yurtsev and Grigory V. Ptashinsky. the length L is the total length of conductors of all the antennas. If, in the radiation mode, only one antenna from group functions (an active antenna), and entries of all the remaining antennas are Cited by: 1.
Numerical Simulations of Radiation and Scattering Characteristics of Dipole and LOOP Antennas Ul E l() ((l),)p os p o, (3) where i 1 ; 2 k is the wave number of free space, is the wavelength of the field. Radiation is the term used to represent the emission or reception of wave front at the antenna, specifying its strength.
In any illustration, the sketch drawn to represent the radiation of an antenna is its radiation pattern. One can simply understand the function and directivity of an antenna by. Oct 21, · / Antenna radiation pattern control through 3D printed inhomogeneous dielectrics.
USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC-URSI - Proceedings. Institute of Electrical and Electronics Engineers Inc., pp.
Cited by: 3. RADIATION PATTERNS SYNTHESIS FOR A CONFORMAL DIPOLE ANTENNA ARRAY By Q.-Q. He and B.-Z. Wang. Full Article PDF ( KB) Abstract: A conformal cylindrical dipole array is developed in this paper. Because the conformal dipole array is curved, new far field pattern behaviors emerge.
Reciprocity. It is a fundamental property of antennas that the receiving pattern (sensitivity as a function of direction) of an antenna when used for receiving is identical to the far-field radiation pattern of the antenna when used for esthetic-tokyo.com is a consequence of the reciprocity theorem of electro-magnetics and is proved below.
Therefore, in discussions of radiation patterns the. A technique for analyzing radiation from conformal antennas the radiation condition into either the finite difference or finite element method with less computer storage and run time requirements.
The hybrid method used in this paper further reduces computa tional requirements for the calculation of radiation patterns, especially. scattering-matrix(PWSM)theoryofantennasandantenna-antennainteractions. A secondary objective is to present some recent andsomenew theoretical results basedon this theory.
Mar 09, · Angle of radiation when referring to antennas, is simply the take off angle of the RF field when launched from your antenna in relation to the ground (earth).
Angle of Radiation - What is it? Indeed a great article, but it begs a doubtless dumb question: This would be a good model for a book covering general ham radio topics designed.About the Tutorial This tutorial is meant to provide the readers a detailed description of the antennas used in communication systems.
After completing this tutorial, you will be able to calculate the parameters of an antenna and decide which antenna suits for which type of application and why. Audience.Dec 13, · A radiation pattern defines the variation of the power radiated by an antenna as a function of the direction away from the antenna.
This power variation as a function of the arrival angle is observed in the antenna's far field. As an example, cons.