Modern Characterization of Electromagnetic Systems and its Associated Metrology
90° cut for a 32 ...Figure 5.21 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.22 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.23 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.24 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.25 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.26 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.27 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.28 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.29 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.30 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.31 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.32 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.33 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.34 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.35 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.36 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.37 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.38 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.39 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.40 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.41 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.42 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.43 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.44 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.45 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.46 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.47 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.48 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.49 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.50 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.51 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.52 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.53 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.54 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.55 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.56 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.57 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.58 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.59 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.60 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.61 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.62 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.63 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.64 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.65 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.66 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.67 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.68 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.69 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.70 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.71 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.72 Co‐polarization characteristic for φ = 0° cut for a 32 × 32...Figure 5.73 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.74 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.75 Co‐polarization characteristic for φ = 90° cut for a 32 × 3...Figure 5.76 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.77 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.78 Cross‐polarization characteristic for φ = 0° cut for a 32 ×...Figure 5.79 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.80 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.81 Cross‐polarization characteristic for φ = 90° cut for a 32 ...Figure 5.82 Original problem and external equivalent problems.Figure 5.83 Near‐field measurement setup and DCS base station antenna.Figure 5.84 Normalized amplitude (dB) of the “forward” (up) and the “backwar...Figure 5.85 Amplitude (dB) of the E‐field pattern of a DCS base station ante...Figure 5.86 Comparison of the co‐polarised and the cross‐polarised component...Figure 5.87 A pyramidal horn antenna with a 348.6 mm × 259.6 mm aperture ope...Figure 5.88 Measurement Setup using a spherical near field range.Figure 5.89 Normalized amplitude (dB) of the “forward” (up) and the “backwar...Figure 5.90 Amplitude (dB) of the E‐field pattern of a pyramidal horn antenn...Figure 5.91 Comparison of the aperture fields produced by the finite element...Figure 5.92 Comparison of the far field pattern between the measurement, fin...Figure 5.93 “Reference volume” of the DCS base station antenna. Amplitude (d...
6 Chapter 6Figure 6.1 Original problem and the Equivalent problem introduced to produce...Figure 6.2 Schematic for Planar near field scanning.Figure 6.3 Copolarization characteristic for ϕ = 0° cut for a 32 × 32 patch ...Figure 6.4 Copolarization characteristic for ϕ = 90° cut for a 32 × 32 patch...Figure 6.5 Cross‐polarization characteristic for ϕ = 0° cut for a 32 × 32 pa...Figure 6.6 Cross‐polarization characteristic for ϕ = 90° cut for a 32 × 32 p...Figure 6.7 Copolarization characteristic for ϕ = 0° cut for a 32 × 32 patch ...Figure 6.8 Copolarization characteristic for ϕ = 90° cut for a 32 × 32 patch...Figure 6.9 Cross‐polarization characteristic for ϕ = 0° cut for a 32 × 32 pa...Figure 6.10 Cross‐polarization characteristic for ϕ = 90° cut for a 32 × 32 ...Figure 6.11 Copolarization characteristic for ϕ = 0°cut for the microstrip a...Figure 6.12 Cross‐polarization characteristic for ϕ = 0°cut for the microstr...Figure 6.13 Copolarization characteristic for ϕ = 90°cut for the microstrip ...Figure 6.14 Cross‐polarization characteristic for ϕ = 90°cut for the microst...Figure 6.15 Relationship between scan length and the angular region of valid...Figure 6.16 All sources are located for z< 0.Figure 6.17 Comparison of exact and computed far‐fields for ϕ = 0° cut for 2...Figure 6.18 Comparison of exact and computed far‐fields for ϕ = 90° cut for ...Figure 6.19 Comparison of exact and computed far‐fields for ϕ = 0° cut for 2...Figure 6.20 Comparison of exact and computed far‐fields for ϕ = 90° cut for ...Figure 6.21 Amplitude of y component of measured electric near‐field for a 3...Figure 6.22 Amplitude of x component of measured electric near‐field for a 3...Figure 6.23 Co‐polarization characteristic for Φ = 0° cut for a 32 × 32...Figure 6.24 Co‐polarization characteristic for Φ = 90° cut for a 32 × 3...Figure 6.25 Cross‐polarization characteristic for ϕ = 0° cut for a 32 ×Figure 6.26 Cross‐polarization characteristic for Φ = 90° cut for a 32 ×...Figure 6.27 Flow diagrams for the processing of the measured data for the mo...Figure 6.28 Flow charts for NF‐FF reconstruction from only amplitude data: (...Figure 6.29 The equivalent problem for the EMC.Figure 6.30 Reconstructed sources of the “chessboard” magnetic current distr...Figure 6.31 Far‐field pattern of the “chessboard”‐like magnetic current dist...Figure 6.32 Error of the iterative optimization. “chessboard”‐like magnetic ...Figure 6.33 Reconstruction of the amplitude of the electric field (Ex, Ey) a...Figure 6.34 Far‐field pattern of the splas antenna. φ = 0 –plane.Figure 6.35 Far‐field pattern of the splas antenna. φ = 90° –plane.Figure 6.36 Original Problem.Figure 6.37 An Equivalent Problem.Figure 6.38 A planar scanning case.Figure 6.39 A x‐directed single probe.Figure 6.40 A x‐directed single probe(side view).Figure 6.41 A x‐directed probe array.Figure 6.42 A x‐directed probe array(side view).Figure 6.43 E total when phi = 0° (dB Scale).Figure 6.44 E total when phi = 90° (dB Scale).Figure 6.45 A x‐directed single probe.Figure 6.46 A x‐directed