LEADER 07151nam 2200673 450 001 9910140496103321 005 20221206173048.0 010 $a1-119-07191-7 010 $a1-119-07182-8 024 7 $a10.1002/9781119071822 035 $a(CKB)2670000000610033 035 $a(EBL)1896044 035 $a(SSID)ssj0001460161 035 $a(PQKBManifestationID)12590142 035 $a(PQKBTitleCode)TC0001460161 035 $a(PQKBWorkID)11465582 035 $a(PQKB)11413087 035 $a(MiAaPQ)EBC1896044 035 $a(CaBNVSL)mat07111425 035 $a(IDAMS)0b00006484339137 035 $a(IEEE)7111425 035 $a(Au-PeEL)EBL1896044 035 $a(CaPaEBR)ebr11048142 035 $a(CaONFJC)MIL770265 035 $a(OCoLC)905419516 035 $a(PPN)254384277 035 $a(EXLCZ)992670000000610033 100 $a20151222d2015 uy 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aTimed arrays $ewideband and time varying antenna arrays /$fRandy L. Haupt 210 1$aHoboken, New Jersey :$cJohn Wiley & Sons Inc.,$d[2015] 210 2$a[Piscataqay, New Jersey] :$cIEEE Xplore,$d[2015] 215 $a1 online resource (221 p.) 300 $aDescription based upon print version of record. 311 $a1-119-07209-3 311 $a1-118-86014-4 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $aList of Figures x -- Preface xix -- 1 Timed and Phased Array Antennas 1 -- 1.1 Large Antennas 1 -- 1.2 Collection of Elements 3 -- 1.3 Overview of an Array Architecture 6 -- 1.4 Transient Versus Steady State 7 -- 1.5 Time Versus Phase 7 -- 1.6 Book Overview 8 -- References 9 -- 2 RF Signals 10 -- 2.1 The Carrier and Modulation 10 -- 2.2 Noise and Interference 12 -- 2.3 Polarization 15 -- 2.4 Signal Bandwidth 17 -- Reference 18 -- 3 Arrays of Point Sources 19 -- 3.1 Point Sources 19 -- 3.2 Far Field 20 -- 3.3 Array Sampling in the Time Domain 21 -- 3.4 Array Sampling in the Frequency Domain 22 -- 3.5 Grating Lobes: Spatial Aliasing 23 -- 3.6 Subarrays and Panels 26 -- 3.7 Electronic Beam Steering 29 -- 3.8 Amplitude Weighting 31 -- 3.8.1 Dolph-Chebyshev Taper 32 -- 3.8.2 Taylor Tapers 33 -- 3.8.3 Bayliss 34 -- 3.9 Thinned Arrays 36 -- References 39 -- 4 Elements in Timed Arrays 41 -- 4.1 Element Characteristics 41 -- 4.1.1 Polarization 42 -- 4.1.2 Impedance 43 -- 4.1.3 Phase center 44 -- 4.1.4 Conformal 44 -- 4.1.5 Size 44 -- 4.1.6 Directivity 45 -- 4.1.7 Bandwidth 45 -- 4.1.8 Balun 45 -- 4.2 Elements 46 -- 4.2.1 Dipole Array 46 -- 4.2.2 Patch Array 47 -- 4.2.3 Spiral Array 50 -- 4.2.4 Helical Array 52 -- 4.2.5 Tapered Slot Antenna (TSA) Array 53 -- 4.2.6 Tightly Coupled Arrays 55 -- 4.2.7 Fragmented Arrays 62 -- 4.3 Mutual Coupling 63 -- 4.4 Element Dispersion 66 -- 4.5 Scaled Arrays 68 -- 4.6 Interleaved Arrays 70 -- References 75 -- 5 Array Beamforming 78 -- 5.1 PCB Transmission Lines 78 -- 5.2 S-parameters 81 -- 5.3 Matching Circuits 82 -- 5.4 Corporate Feeds 82 -- 5.5 Distributed Versus Centralized Amplification 83 -- 5.6 Blass Matrix 84 -- 5.7 Butler Matrix 85 -- 5.8 Lenses 86 -- 5.9 Reflectarrays 89 -- 5.10 Digital Beamforming 91 -- References 93 -- 6 Active Electronically Scanned Array Technology 95 -- 6.1 Semiconductor Technology for T/R Modules 96 -- 6.2 T/R Module Layout 98 -- 6.3 Amplifiers 100 -- 6.4 Switches 109 -- 6.5 Phase Shifter 114 -- 6.6 Attenuators 120. 327 $a6.7 Limiter 121 -- 6.8 Circulator 121 -- 6.9 Correcting Errors through Calibration and Compensation 121 -- References 123 -- 7 Time Delay in a Corporate-Fed Array 126 -- 7.1 Pulse Dispersion 128 -- 7.2 Phased Array Bandwidth 130 -- 7.3 Time Delay Steering Calculations 133 -- 7.4 Time Delay Units 135 -- 7.5 Unit Cell Constraints 138 -- 7.6 Time Delay Bit Distribution at the Subarray Level 141 -- References 147 -- 8 Adaptive Arrays 149 -- 8.1 Signal Correlation Matrix 150 -- 8.2 Optimum Array Weights 152 -- 8.3 Adaptive Weights Without Inverting the Correlation Matrix 154 -- 8.4 Algorithms for Nondigital Beamformers 155 -- 8.4.1 Partial Adaptive Nulling 156 -- 8.4.2 Adaptive Nulling with Weight Constraints 158 -- 8.4.3 Adaptive Nulling with Cancellation Beams 159 -- 8.5 Reconfigurable Arrays 160 -- 8.6 Reconfigurable Elements 165 -- 8.7 Time-Modulated Arrays 167 -- 8.8 Adaptive Thinning 172 -- 8.9 Other Adaptive Array Alternatives 177 -- 8.9.1 Beam Switching 178 -- 8.9.2 Direction Finding 178 -- 8.9.3 Retrodirective Array 181 -- 8.9.4 MIMO 181 -- References 184 -- List of Symbols and Abbreviations 188 -- Index 194. 330 $aIntroduces timed arrays and design approaches to meet the new high performance standards The author concentrates on any aspect of an antenna array that must be viewed from a time perspective. The first chapters briefly introduce antenna arrays and explain the difference between phased and timed arrays. Since timed arrays are designed for realistic time-varying signals and scenarios, the book also reviews wideband signals, baseband and passband RF signals, polarization and signal bandwidth. Other topics covered include time domain, mutual coupling, wideband elements, and dispersion. The author also presents a number of analog and digital beamforming networks for creating and manipulating beams. The book concludes with an overview of the methods to integrate time delay into the array design and of several other adaptive arrays that prove useful in many different systems. . Examines RF signal concepts such as polarization and signal bandwidth and their applications to timed antenna arrays. Covers arrays of point source, elements in timed antenna arrays, active electronically scanned array technology, and time delay in corporate fed arrays. Includes complete design examples for placing time delay in arrays Timed Arrays: Wideband and Time Varying Antenna Arrays is written for practicing engineers and scientists in wireless communication, radar, and remote sensing as well as graduate students and professors interested in advanced antenna topics. Randy Haupt, PhD., is Professor and Department Head of EECS at the Colorado School of Mines. He received his PhD from the University of Michigan and retired from the USAF as a LtCol. Dr. Haupt was an RF staff consultant at Ball Aerospace & Technologies, Corp., senior scientist and department head at the Applied Research Laboratory of Penn State, professor and department head of ECE at Utah State, professor and chair of EE at the University of Nevada Reno, and professor of EE at the USAF Academy. Dr. Haupt is a Fellow of the IEEE and Applied Computational Electromagnetics Society (ACES). 606 $aAntenna arrays 606 $aAdaptive antennas 606 $aTime-domain analysis 615 0$aAntenna arrays. 615 0$aAdaptive antennas. 615 0$aTime-domain analysis. 676 $a621.3841/35 700 $aHaupt$b Randy L.$0319599 801 0$bCaBNVSL 801 1$bCaBNVSL 801 2$bCaBNVSL 906 $aBOOK 912 $a9910140496103321 996 $aTimed arrays$92027107 997 $aUNINA LEADER 03592nam 2200637 a 450 001 9910785140403321 005 20200520144314.0 010 $a1-282-78718-7 010 $a9786612787188 010 $a90-04-18868-1 024 7 $a10.1163/ej.9789004184039.i-210 035 $a(CKB)2670000000046126 035 $a(EBL)583725 035 $a(OCoLC)667292765 035 $a(SSID)ssj0000426322 035 $a(PQKBManifestationID)11965239 035 $a(PQKBTitleCode)TC0000426322 035 $a(PQKBWorkID)10373560 035 $a(PQKB)10014699 035 $a(MiAaPQ)EBC583725 035 $a(OCoLC)505913484 035 $a(nllekb)BRILL9789004188686 035 $a(Au-PeEL)EBL583725 035 $a(CaPaEBR)ebr10419808 035 $a(CaONFJC)MIL278718 035 $a(PPN)174399006 035 $a(EXLCZ)992670000000046126 100 $a20100316d2010 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aProtecting the displaced$b[electronic resource] $edeepening the responsibility to protect /$fedited by Sara E. Davies and Luke Glanville 210 $aLeiden ;$aBoston $cMartinus Nijhoff Publishers$d2010 215 $a1 online resource (220 p.) 225 0 $aNijhoff eBook titles 300 $aDescription based upon print version of record. 311 $a90-04-18403-1 320 $aIncludes bibliographical references and index. 327 $gForced migration, the refugee regime and the responsibility to protect /$rSusan Martin --$tReconciling R2P with IDP protection /$rRoberta Cohen --$tSomething old, something new, something borrowed-- something blue? : the protection potential of a marriage of concepts between R2P and IDPs protection /$rErin D. Mooney --$tEU migration policy : evolving ideas of responsibility and protection /$rEmma Haddad --$tRegime-induced displacement and decision-making within the United Nations Security Council : the cases of Northern Iraq, Kosovo, and Darfur /$rPhil Orchard --$tProtecting civilians in uncivil wars /$rAlex J. Bellamy and Paul D. Williams --$tA responsibility to protect persons in the event of natural disasters /$rSara E. Davies --$tThe international community's responsibility to protect /$rLuke Glanville. 330 $aThis edited collection has sought contributions from some of the foremost scholars of refugee and Internally Displaced Persons (IDP) studies to engage with the conceptual and practical difficulties entailed in realising how the Responsibility to Protect (R2P) can be fulfilled by states and the international community to protect vulnerable persons. Contributors to this book were given one theme: to consider, based on their experience and knowledge, how R2P may be aligned with the protection of the displaced. Contributions explore the history and progress so far in aligning R2P with refugee and IDP protection, as well as examining the conceptual and practical issues that arise when attempting to expand R2P from words into deeds. 606 $aRefugees$xLegal status, laws, etc$zUnited States 606 $aInternally displaced persons$xLegal status, laws, etc$zUnited States 615 0$aRefugees$xLegal status, laws, etc. 615 0$aInternally displaced persons$xLegal status, laws, etc. 676 $a342.7308/3 701 $aDavies$b Sara Ellen$01478682 701 $aGlanville$b Luke$01089861 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910785140403321 996 $aProtecting the displaced$93694469 997 $aUNINA LEADER 01414nam0 22003251i 450 001 UON00279016 005 20231205103828.912 100 $a20060622f |0itac50 ba 101 $afre 102 $aUS 105 $a||||0 ||||| 200 1 $aDictionnaire des amateurs français au 17. siècle$fEdmond Bonnaffè 205 $aNew York : B. Franklin$b[196-?] 210 $axvi$d353 p. ; 25 cm 215 $aEd. orig.: Paris, 1884. 410 1$1001UON00132859$12001 $aBurt Franklin. Bibliography e Reference Series$1210 $aNew York$cBurt Franklin$v138 606 $aArte$xFrancia$3UONC059893$2FI 606 $aBiografie$3UONC058042$2FI 606 $aFrancia$xDizionari biografici$3UONC059862$2FI 606 $aINTELLETTUALI FRANCESI$xDizionari biografici$3UONC059894$2FI 620 $aUS$dNew York$3UONL000050 676 $a840.03$cLetteratura francese. Enciclopedie e concordanze$v21 700 1$aBONNAFFÉ$bEdmond$3UONV161588$0692387 712 $aFranklin$3UONV246911$4650 801 $aIT$bSOL$c20260123$gRICA 899 $aSIBA - SISTEMA BIBLIOTECARIO DI ATENEO E ARCHIVIO STORICO$2UONSI 912 $aUON00279016 950 $aSIBA - SISTEMA BIBLIOTECARIO DI ATENEO E ARCHIVIO STORICO$dSI S.C I BIO 11 $eSI SFR5000 7 11 996 $aDictionnaire des amateurs français au 17. siècle$91246249 997 $aUNIOR