Variable permittivity dielectric material loaded stepped-horn antenna

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The Van Houten library has removed some ofthe personal information and all signatures fromthe approval page and biographical sketches oftheses and dissertations in order to protect theidentity of NJIT graduates and faculty.
Page 1: Copyright Warning & RestrictionsThe
Page 5 and 6: Copyright © 2005 by Özgür Özdem
Page 7 and 8: BIOGRAPHICAL SKETCHAuthor: Özgür
Page 9 and 10: ACKNOWLEDGMENTThe preparation of th
Page 11 and 12: LIST OF TABLESTablePage4.1 Amplitud
Page 13 and 14: FigureLIST OF FIGURES(Continued)Pag
Page 15 and 16: CHAPTER 1INTRODUCTIONOne of the mos
Page 17 and 18: 3The integral equation is solved nu
Page 19 and 20: CHAPTER 2MATHEMATICAL MODELTypical
Page 21 and 22: 7Figure 2.3 Radiating aperture of a
Page 23 and 24: where the propagation constant is e
Page 25 and 26: The boundary conditions relating th
Page 27 and 28: 13Multiplying each side of magnetic
Page 29 and 30: where ITE and ITM are unit matrices
Page 31 and 32: 17Figure 2.5 Scattering matrix repr
Page 33 and 34: 19where Ht g is the tangential comp
Page 35 and 36: where Ywg is the admittance matrix
Page 37 and 38: Figure 2.8 Rooftop expansion functi
Page 39 and 40: 25Therefore, using (2.60), the comp
Page 41 and 42: 27input of the horn B° are obtaine
Page 43 and 44: Finite difference approximations ca
Page 45 and 46: 31Similiar procedure applied to Hy,
Page 47 and 48: 332.5 Antenna CharacteristicsAntenn
Page 49 and 50: CHAPTER 3PERFORMANCE OPTIMIZATIONTh
Page 51 and 52: 37It should be mentioned that even
Page 53 and 54:
39Figure 3.2 a, and aA width of H -
Page 55 and 56:
CHAPTER 4NUMERICAL RESULTSIn Chapte
Page 57 and 58:
43to be equaled to 1 Watt/m². Tabl
Page 59 and 60:
45Figure 4.1 Input reflection coeff
Page 61 and 62:
47dielectric loaded and emtpy horn
Page 63 and 64:
49—30 dB at the expense of signif
Page 65 and 66:
51Figure 4.28 depict aperture field
Page 67 and 68:
Figure 4.4 Gain versus frequency of
Page 69 and 70:
Figure 4.6 Cross-polarization level
Page 71 and 72:
579Figure 4.8 Gain versus frequency
Page 73 and 74:
Figure 4.10 Cross-polarization leve
Page 75 and 76:
Figure 4.12 H-plane pattern versus
Page 78 and 79:
Figure 4.15 Cross-polarization leve
Page 80 and 81:
Figure 4.17 Co- and Cross-polarizat
Page 82 and 83:
Figure 4.19 Amplitude of aperture e
Page 84 and 85:
Figure 4.21 Amplitude of aperture e
Page 86 and 87:
Figure 4.23 Gain versus frequency o
Page 88 and 89:
Figure 4.25 Aperture efficiency ver
Page 90 and 91:
Figure 4.27 Amplitude of aperture m
Page 92 and 93:
780.8Figure 4.29 Amplitude of apert
Page 94 and 95:
CHAPTER 5CONCLUSIONS AND FUTURE WOR
Page 96 and 97:
APPENDIXTAYLOR EXPANSION OF GREEN F
Page 98 and 99:
84The definite integral is obtained
Page 100 and 101:
86[13] H. Patzelt and F. Arndt, "Do
Page 102:
88[41] R. C. Johnson and H. Jasik,
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Variable permittivity dielectric material loaded stepped-horn antenna

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