LEADER 05486nam 2200649 450 001 9910813669003321 005 20220317203521.0 010 $a1-5231-1726-5 010 $a1-60807-518-4 035 $a(CKB)3710000000213650 035 $a(EBL)1455542 035 $a(OCoLC)870244215 035 $a(SSID)ssj0001469127 035 $a(PQKBManifestationID)11766455 035 $a(PQKBTitleCode)TC0001469127 035 $a(PQKBWorkID)11528188 035 $a(PQKB)11595430 035 $a(Au-PeEL)EBL1455542 035 $a(CaPaEBR)ebr10897759 035 $a(MiAaPQ)EBC1455542 035 $a(EXLCZ)993710000000213650 100 $a20140808h20132013 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aHandbook of reflector antennas and feed systems$hVolume 2 /$fSudhakar Rao, Lotfollah Shafai, Satish Sharma, editors ; Vicki Kane, cover design 210 1$aBoston, Massachusetts :$cArtech House,$d2013. 210 4$dİ2013 215 $a1 online resource (381 p.) 300 $aDescription based upon print version of record. 311 $a1-60807-517-6 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $a""Handbook of Reflector Antennasand Feed Systems: Volume II Feed Systems""; ""Contents""; ""Preface""; ""Chapter 1 Introduction""; ""1.1 Introduction""; ""1.2 The Feed System""; ""1.3 Phase Center Determination""; ""1.4 Feed Efficiency""; ""1.5 Organization of the Book""; ""References""; ""Chapter 2 Numerical Methods""; ""2.1 Introduction""; ""2.2 Maxwella???s Equations: Foundations of Electromagnetic Analysis ""; ""2.2.1 Greena???s Functions and Integral Representations""; ""2.3 Method of Moments (MoM)""; ""2.3.1 Integral Equation Formulation""; ""2.3.2 Geometry Representations and Meshing"" 327 $a""2.3.3 Basis Functions""""2.3.4 Construction of the Impedance Matrix Equation""; ""2.3.5 Direct and Iterative Solution Methods""; ""2.3.6 Examples""; ""2.4 Finite-Element Method (FEM)""; ""2.4.1 Functional Formalism and Discrete Formulation""; ""2.4.2 Material Modeling, Boundary Conditions, and Feed Modeling""; ""2.4.3 Discretization and Basis Functions""; ""2.4.4 Example""; ""2.5 Hybrid FE-BI and Domain Decomposition Techniques""; ""2.5.1 Hybrid Finite-Element-Boundary Integral (FE-BI) Formulation""; ""2.5.2 Example""; ""2.6 Fast Methods for Integral Equations"" 327 $a""2.6.1 Fast Multipole Method (FMM)""""2.6.2 Examples""; ""2.6.3 Model Order Reduction for Fast Frequency Sweep""; ""2.6.4 Example""; ""2.7 High-Frequency Techniques""; ""2.7.1 Physical Optics (PO) and Geometrical Optics (GO)""; ""2.7.2 Example""; ""2.7.3 Geometrical Theory of Diffraction and Uniform Theory of Diffraction""; ""References""; ""Chapter 3 Electrically Small Feeds""; ""3.1 Introduction""; ""3.2 Design Requirements""; ""3.3 Waveguide Feeds""; ""3.3.1 Small Waveguide Feeds""; ""3.3.2 Small Coaxial Feeds""; ""3.3.3 Small Wide Angle Feeds""; ""3.3.4 Small Backfire Feeds"" 327 $a""3.4 Microstrip Feeds""""3.4.1 Single Patch Antenna as the Reflector Feed""; ""3.4.2 Planar Antenna Array Feeds""; ""3.5 Backfire Printed Dipole Feeds""; ""3.5.1 Design Approach""; ""3.5.2 Performance Results""; ""3.5.3 Printed Dipole Performance with a Reflector""; ""3.6 Asymmetric Feeds""; ""3.7 Feed Pattern Shaping by Superstrate Loading""; ""References""; ""Chapter 4 Smooth Wall Multimode Horns for High Aperture Efficiencya???Theory, Design, and Applications""; ""4.1 Introduction""; ""4.2 Theory for High Aperture Efficiency""; ""4.3 Circular Aperture""; ""4.3.1 Realization of the Modes"" 327 $a""4.3.2 Circular Horn Design""""4.3.3 Three-Step Horn""; ""4.4 Square High-Efficiency Horn""; ""4.5 Multiflared High-Efficiency Horns""; ""4.6 Other High-Efficiency Horn Structures""; ""4.7 Applications""; ""4.7.1 In Direct Radiating Arrays""; ""4.7.2 In Multiple-Beam Reflectors""; ""4.8 Conclusions""; ""References""; ""Chapter 5 Profiled Horns and Feeds""; ""5.1 Introduction""; ""5.2 Basis of Optimum Horns""; ""5.2.1 Pattern Constraints""; ""5.2.2 Input Mismatch""; ""5.2.3 Aperture Efficiency""; ""5.2.4 Phase Center Stability"" 327 $a""5.2.5 Compactness and/or Physical Constraint Due to Existing Environment"" 330 $aThis is the first truly comprehensive and most up-to-date handbook available on modern reflector antennas and feed sources for diversified space and ground applications. There has never been such an all-encompassing reflector handbook in print, and no currently available title offers coverage of such recent research developments. The Handbook consists of three volumes. Volume II focuses on feed sources. Reflector antennas are extraordinary devices that combine high gain with geometrical simplicity, and can operate in broad frequency bands. Their performance, however, depends on the electrical 606 $aAntennas, Reflector$xDesign and construction 606 $aAntennas, Reflector 615 0$aAntennas, Reflector$xDesign and construction. 615 0$aAntennas, Reflector. 676 $a621.38254 702 $aSudhakar Rao$b B. 702 $aShafai$b Lotfollah 702 $aSharma$b Satish 702 $aKane$b Vicki 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910813669003321 996 $aHandbook of reflector antennas and feed systems$91074534 997 $aUNINA