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| Content Provider | IET Digital Library |
|---|---|
| Author | Malyuskin, Oleksandr Fusco, Vincent |
| Abstract | A novel physical effect of angular super-resolution based on the direction-of-arrival information sampling using highly oscillatory evanescent harmonics in dense antenna array environment is demonstrated theoretically and experimentally. This phenomenon enables realisation of novel, ultra-compact antenna terminals (ATs) with superdirective radiation patterns and spatial auto-focusing characteristics for any direction of arrival of the excitation waveform. The use of these ATs should enhance the signal-to-noise ratio at the receiver, increase overall energy efficiency of the wireless communication or power transmission systems and lead to substantially lower interference and EM pollution across the wireless network area. Special attention is given to the antenna array operating in the presence of a flat metal ground plane or a ground plane with EM band-gap structure. Near-field scattering phenomena arising as a result of the antenna array coupling to the ground planes of both types and their effects on the far-field radiation patterns are analysed in detail. The results of the study should be important for the development of the electrically compact ATs to be employed in the energy-efficient wireless communication systems including the Internet-of-Things, wireless sensor networks and wireless powering systems. |
| Starting Page | 2185 |
| Ending Page | 2193 |
| Page Count | 9 |
| ISSN | 17518725 |
| Volume Number | 11 |
| e-ISSN | 17518733 |
| Issue Number | Issue 15, Dec (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/11/15 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0769 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2017-09-04 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Angular Super-resolution Antenna Array Antenna Radiation Pattern Dense Retrodirective Antenna Array Environment Direction of Arrival Estimation Direction-of-arrival Information Sampling Directive Antenna Electromagnetic Compatibility Electromagnetic Wave Scattering EM Band-gap Structure EM Pollution Energy Conservation Energy Gap Energy-efficient Wireless Communication System Excitation Waveform Far-field Radiation Pattern Flat Metal Ground Plane Full-wave EM Simulations Harmonics Incident Electromagnetic Signal Interference Internet of Things Internet-of-Things Near-field Scattering Phenomena Oscillatory Resonant Evanescent Harmonics Overall Energy Efficiency Physical Effect Power Transmission System Radio Frequency Interference Radio Frequency Power Transmission Radio Wave Propagation Signal Processing And Detection Signal Resolution Signal Sampling Signal to Noise Ratio Spatial Auto-focusing Characteristic Superdirective Radiation Pattern Telecommunication Power Management Ultra-compact Antenna Terminals Ultra-compact at Ultra-compact Retrodirective Antenna Array Wireless Network Area Wireless Powering System Wireless Sensor Network |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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