Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks
The wireless relay network utilizing multiple Unmanned Aerial Vehicles (UAVs) has now been widely studied. Since the radio propagation in the UAV network is close to free space environment, co-channel interference to other UAVs and the ground station (GS) becomes a serious problem. Designing a direc...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9442765/ |
| _version_ | 1818588475598831616 |
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| author | Hideya So Kazuki Maruta |
| author_facet | Hideya So Kazuki Maruta |
| author_sort | Hideya So |
| collection | DOAJ |
| description | The wireless relay network utilizing multiple Unmanned Aerial Vehicles (UAVs) has now been widely studied. Since the radio propagation in the UAV network is close to free space environment, co-channel interference to other UAVs and the ground station (GS) becomes a serious problem. Designing a directional and multiband antenna is quite effective against this issue; multiple metamaterial reflectors are our key solution. Meanwhile, the flight time of the UAV imposes a limitation on the payload weight including communication equipment. This paper proposes a directional antenna employing a lightweight metamaterial reflector to reduce the antenna weight. It is realized by the woodpile structure which consists of layers of dielectric rods with a stacking sequence. Making the hole in the center of each dielectric rod can reduce the woodpile reflector’s weight with maintaining the antenna radiation performance. The electromagnetic field simulation clarified the reflection characteristics by making the hole. Both simulative and experimental evaluations clarified that the proposed antenna has almost the same radiation characteristics as the conventional one while reducing its weight by 25%, which saves the power consumption by 12.5%. |
| first_indexed | 2024-12-16T09:25:21Z |
| format | Article |
| id | doaj.art-6b27b7545e4e4a88a2800b8c36904e45 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T09:25:21Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-6b27b7545e4e4a88a2800b8c36904e452022-12-21T22:36:40ZengIEEEIEEE Access2169-35362021-01-019787357874110.1109/ACCESS.2021.30842359442765Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based NetworksHideya So0https://orcid.org/0000-0002-5396-4458Kazuki Maruta1https://orcid.org/0000-0001-9635-3182NTT Network Innovation Laboratories, NTT Corporation, Yokosuka, JapanNTT Access Network Systems Laboratories, NTT Corporation, Yokosuka, JapanThe wireless relay network utilizing multiple Unmanned Aerial Vehicles (UAVs) has now been widely studied. Since the radio propagation in the UAV network is close to free space environment, co-channel interference to other UAVs and the ground station (GS) becomes a serious problem. Designing a directional and multiband antenna is quite effective against this issue; multiple metamaterial reflectors are our key solution. Meanwhile, the flight time of the UAV imposes a limitation on the payload weight including communication equipment. This paper proposes a directional antenna employing a lightweight metamaterial reflector to reduce the antenna weight. It is realized by the woodpile structure which consists of layers of dielectric rods with a stacking sequence. Making the hole in the center of each dielectric rod can reduce the woodpile reflector’s weight with maintaining the antenna radiation performance. The electromagnetic field simulation clarified the reflection characteristics by making the hole. Both simulative and experimental evaluations clarified that the proposed antenna has almost the same radiation characteristics as the conventional one while reducing its weight by 25%, which saves the power consumption by 12.5%.https://ieeexplore.ieee.org/document/9442765/Unmanned Aerial Vehicle (UAV)directional antennawoodpile metamaterial |
| spellingShingle | Hideya So Kazuki Maruta Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks IEEE Access Unmanned Aerial Vehicle (UAV) directional antenna woodpile metamaterial |
| title | Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks |
| title_full | Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks |
| title_fullStr | Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks |
| title_full_unstemmed | Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks |
| title_short | Directional Antenna With Lightweight Metamaterial Reflector for UAV-Based Networks |
| title_sort | directional antenna with lightweight metamaterial reflector for uav based networks |
| topic | Unmanned Aerial Vehicle (UAV) directional antenna woodpile metamaterial |
| url | https://ieeexplore.ieee.org/document/9442765/ |
| work_keys_str_mv | AT hideyaso directionalantennawithlightweightmetamaterialreflectorforuavbasednetworks AT kazukimaruta directionalantennawithlightweightmetamaterialreflectorforuavbasednetworks |