Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics
Abstract Very low frequency electromagnetic waves adeptly propagate in harsh cross‐medium environments, surmounting the rapid attenuation that impedes high‐frequency counterparts. Traditional low frequency antennas, however, encounter challenges concerning size, efficiency, and power. Here, an isola...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202408770 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832593512426635264 |
|---|---|
| author | Jingqi Wu Zilun Zeng Liwei Wang Jianchun Xu Ke Bi |
| author_facet | Jingqi Wu Zilun Zeng Liwei Wang Jianchun Xu Ke Bi |
| author_sort | Jingqi Wu |
| collection | DOAJ |
| description | Abstract Very low frequency electromagnetic waves adeptly propagate in harsh cross‐medium environments, surmounting the rapid attenuation that impedes high‐frequency counterparts. Traditional low frequency antennas, however, encounter challenges concerning size, efficiency, and power. Here, an isolation transformer based very low frequency loop antenna with compact size and well impedance matching is proposed to enhance radiation characteristics for long‐distance communication. By utilizing the high magnetic permeability amorphous/nanocrystalline alloy Fe73.5Cu1Nb3B9Si13.5, the isolation transformer enables efficient and stable high‐current input. This design surpasses the current limitation of the conventional loop antennas, thereby improving its electromagnetic performance. Consequently, the radiation intensity of proposed antenna can be effectively increased over 30 times compared to traditional loop antennas. According to the experimental measurements, the transmission distance is over 340 m at 15 kHz using a single proposed antenna with a diameter of 2 m. Its robust performance, such as high radiation efficiency, low power consumption, and long‐distance transmission capacity, suggests significant potential for applications in underground communications and underwater information transmission. |
| format | Article |
| id | doaj-art-f913830414184aa09460142e4adfb4b3 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-f913830414184aa09460142e4adfb4b32025-01-20T13:04:18ZengWileyAdvanced Science2198-38442025-01-01123n/an/a10.1002/advs.202408770Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation CharacteristicsJingqi Wu0Zilun Zeng1Liwei Wang2Jianchun Xu3Ke Bi4State Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing 100876 P. R. ChinaState Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing 100876 P. R. ChinaState Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing 100876 P. R. ChinaState Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing 100876 P. R. ChinaState Key Laboratory of Information Photonics and Optical Communications School of Science Beijing University of Posts and Telecommunications Beijing 100876 P. R. ChinaAbstract Very low frequency electromagnetic waves adeptly propagate in harsh cross‐medium environments, surmounting the rapid attenuation that impedes high‐frequency counterparts. Traditional low frequency antennas, however, encounter challenges concerning size, efficiency, and power. Here, an isolation transformer based very low frequency loop antenna with compact size and well impedance matching is proposed to enhance radiation characteristics for long‐distance communication. By utilizing the high magnetic permeability amorphous/nanocrystalline alloy Fe73.5Cu1Nb3B9Si13.5, the isolation transformer enables efficient and stable high‐current input. This design surpasses the current limitation of the conventional loop antennas, thereby improving its electromagnetic performance. Consequently, the radiation intensity of proposed antenna can be effectively increased over 30 times compared to traditional loop antennas. According to the experimental measurements, the transmission distance is over 340 m at 15 kHz using a single proposed antenna with a diameter of 2 m. Its robust performance, such as high radiation efficiency, low power consumption, and long‐distance transmission capacity, suggests significant potential for applications in underground communications and underwater information transmission.https://doi.org/10.1002/advs.202408770impedance matchinglow frequency antennasminiaturizationradiation enhancement |
| spellingShingle | Jingqi Wu Zilun Zeng Liwei Wang Jianchun Xu Ke Bi Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics Advanced Science impedance matching low frequency antennas miniaturization radiation enhancement |
| title | Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics |
| title_full | Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics |
| title_fullStr | Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics |
| title_full_unstemmed | Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics |
| title_short | Isolation Transformer Based Very Low Frequency Antenna with Enhanced Radiation Characteristics |
| title_sort | isolation transformer based very low frequency antenna with enhanced radiation characteristics |
| topic | impedance matching low frequency antennas miniaturization radiation enhancement |
| url | https://doi.org/10.1002/advs.202408770 |
| work_keys_str_mv | AT jingqiwu isolationtransformerbasedverylowfrequencyantennawithenhancedradiationcharacteristics AT zilunzeng isolationtransformerbasedverylowfrequencyantennawithenhancedradiationcharacteristics AT liweiwang isolationtransformerbasedverylowfrequencyantennawithenhancedradiationcharacteristics AT jianchunxu isolationtransformerbasedverylowfrequencyantennawithenhancedradiationcharacteristics AT kebi isolationtransformerbasedverylowfrequencyantennawithenhancedradiationcharacteristics |