| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3.2 Abbreviated terms 4 Practical examples of antenna near-field measurement using optical techniques in terahertz-wave bands 4.1 Overview Figures Figure 1 \u2013 Proposed measurement system <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4.2 Non-polarimetric EO frequency down-conversion technique Figure 2 \u2013 Schematic diagram and photograph of EO probe Figure 3 \u2013 Principle of the non-polarimetric EO frequency down-conversion technique <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4.3 Synchronous system based on a self-heterodyne technique 4.3.1 General 4.3.2 Principle and system configuration 4.3.3 Example of near-field measurement Figure 4 \u2013 Schematic diagram of the synchronous system based on the self-heterodyne technique <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4.3.4 Near-to-far field transformation results Figure 5 \u2013 Near-field of the terahertz wave (310 GHz) measured by the synchronous system based on the self-heterodyne technique Figure 6 \u2013 Measured rectangular-type horn antenna and EO probe <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Figure 7 \u2013 Far-field pattern calculated from the near-field measured by the synchronous system Figure 8 \u2013 Far-field pattern in the E-plane and H-plane <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.4 Asynchronous system based on a phase-noise cancelling technique 4.4.1 General 4.4.2 Principle and system configuration Table 1 \u2013 Radiation pattern characteristics measured by the synchronous system <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.4.3 Example of near-field measurement 4.4.4 Near-to-far field transformation results Figure 9 \u2013 Schematic diagram of the asynchronous system based on the phase noise cancelling technique Figure 10 \u2013 Near-field pattern measured using the asynchronous system <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.5 Comparison between results obtained from synchronous and asynchronous systems Figure 11 \u2013 Far-field pattern calculated from the near-field measured by the asynchronous system Figure 12 \u2013 Far-field pattern in the E-plane and H-plane Figure 13 \u2013 Far-field pattern calculated from the near-field measured by the synchronous system (a) and asynchronous system (b) <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Figure 14 \u2013 Far-field pattern calculated from the near-field measured by the asynchronous system Table 2 \u2013 Radiation pattern characteristics measured by the synchronous and asynchronous systems <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Transmitting and receiving equipment for radiocommunication. Radio-over-fibre technologies for electromagnetic-field measurement – Antenna near-field pattern measurement using optical techniques in terahertz-wave bands<\/b><\/p>\n |