High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems
An innovative off-chip antenna (OCA) is presented that exhibits high gain and efficiency performance at the terahertz (THz) band and has a wide operational bandwidth. The proposed OCA is implemented on stacked silicon layers and consists of an open circuit meandering line. It is shown that by loadin...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Group Publishing
2022
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| Subjects: | |
| Online Access: | https://repository.londonmet.ac.uk/8046/1/s41598-022-22828-3.pdf |
| _version_ | 1804072854090678272 |
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| author | Alibakhshikenari, Mohammad Virdee, Bal Singh Mariyanayagam, Dion Vadalà, Valeria Naser-Moghadasi, Mohammad See, Chan Dayoub, Iyad Aïssa, Sonia Livreri, Patrizia Burokur, Shah Nawaz Pietrenko‑Dabrowska, Anna Falcone, Francisco Koziel, Slawomir Limiti, Ernesto |
| author_facet | Alibakhshikenari, Mohammad Virdee, Bal Singh Mariyanayagam, Dion Vadalà, Valeria Naser-Moghadasi, Mohammad See, Chan Dayoub, Iyad Aïssa, Sonia Livreri, Patrizia Burokur, Shah Nawaz Pietrenko‑Dabrowska, Anna Falcone, Francisco Koziel, Slawomir Limiti, Ernesto |
| author_sort | Alibakhshikenari, Mohammad |
| collection | LMU |
| description | An innovative off-chip antenna (OCA) is presented that exhibits high gain and efficiency performance at the terahertz (THz) band and has a wide operational bandwidth. The proposed OCA is implemented on stacked silicon layers and consists of an open circuit meandering line. It is shown that by loading the antenna with an array of subwavelength circular dielectric slots and terminating it with a metamaterial unit cell, its impedance bandwidth is enhanced by a factor of two and its gain on average by about 4 dB. Unlike conventional antennas, where the energy is dissipated in a resistive load, the technique proposed here significantly reduces losses. The antenna is excited from underneath the antenna by coupling RF energy from an open-circuited feedline through a slot in the ground-plane of the middle substrate layer. The feedline is shielded with another substrate layer which has a ground-plane on its opposite surface to mitigate the influence of the structure on which the antenna is mounted. The antenna has the dimensions 12.3 × 4.5 × 0.905 mm3 and operates across the 0.137–0.158 THz band corresponding to a fractional bandwidth of 14.23%. Over this frequency range the average measured gain and efficiency are 8.6 dBi and 77%, respectively. These characteristics makes the proposed antenna suitable for integration in sub-terahertz near-field electronic systems such as radio frequency identification (RFID) devices with high spatial resolution. |
| first_indexed | 2024-07-09T04:05:45Z |
| format | Article |
| id | oai:repository.londonmet.ac.uk:8046 |
| institution | London Metropolitan University |
| language | English |
| last_indexed | 2024-07-09T04:05:45Z |
| publishDate | 2022 |
| publisher | Nature Group Publishing |
| record_format | eprints |
| spelling | oai:repository.londonmet.ac.uk:80462023-02-20T16:07:36Z http://repository.londonmet.ac.uk/8046/ High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems Alibakhshikenari, Mohammad Virdee, Bal Singh Mariyanayagam, Dion Vadalà, Valeria Naser-Moghadasi, Mohammad See, Chan Dayoub, Iyad Aïssa, Sonia Livreri, Patrizia Burokur, Shah Nawaz Pietrenko‑Dabrowska, Anna Falcone, Francisco Koziel, Slawomir Limiti, Ernesto 620 Engineering & allied operations An innovative off-chip antenna (OCA) is presented that exhibits high gain and efficiency performance at the terahertz (THz) band and has a wide operational bandwidth. The proposed OCA is implemented on stacked silicon layers and consists of an open circuit meandering line. It is shown that by loading the antenna with an array of subwavelength circular dielectric slots and terminating it with a metamaterial unit cell, its impedance bandwidth is enhanced by a factor of two and its gain on average by about 4 dB. Unlike conventional antennas, where the energy is dissipated in a resistive load, the technique proposed here significantly reduces losses. The antenna is excited from underneath the antenna by coupling RF energy from an open-circuited feedline through a slot in the ground-plane of the middle substrate layer. The feedline is shielded with another substrate layer which has a ground-plane on its opposite surface to mitigate the influence of the structure on which the antenna is mounted. The antenna has the dimensions 12.3 × 4.5 × 0.905 mm3 and operates across the 0.137–0.158 THz band corresponding to a fractional bandwidth of 14.23%. Over this frequency range the average measured gain and efficiency are 8.6 dBi and 77%, respectively. These characteristics makes the proposed antenna suitable for integration in sub-terahertz near-field electronic systems such as radio frequency identification (RFID) devices with high spatial resolution. Nature Group Publishing 2022-10-25 Article PeerReviewed text en cc_by_4 https://repository.londonmet.ac.uk/8046/1/s41598-022-22828-3.pdf Alibakhshikenari, Mohammad, Virdee, Bal Singh, Mariyanayagam, Dion, Vadalà, Valeria, Naser-Moghadasi, Mohammad, See, Chan, Dayoub, Iyad, Aïssa, Sonia, Livreri, Patrizia, Burokur, Shah Nawaz, Pietrenko‑Dabrowska, Anna, Falcone, Francisco, Koziel, Slawomir and Limiti, Ernesto (2022) High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems. Scientific Reports, 12 (17893). pp. 1-11. ISSN 2045-2322 https://doi.org/10.1038/s41598-022-22828-3 10.1038/s41598-022-22828-3 |
| spellingShingle | 620 Engineering & allied operations Alibakhshikenari, Mohammad Virdee, Bal Singh Mariyanayagam, Dion Vadalà, Valeria Naser-Moghadasi, Mohammad See, Chan Dayoub, Iyad Aïssa, Sonia Livreri, Patrizia Burokur, Shah Nawaz Pietrenko‑Dabrowska, Anna Falcone, Francisco Koziel, Slawomir Limiti, Ernesto High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems |
| title | High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems |
| title_full | High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems |
| title_fullStr | High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems |
| title_full_unstemmed | High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems |
| title_short | High gain/bandwidth off‑chip antenna loaded with metamaterial unit‑cell impedance matching circuit for sub‑terahertz near‑field electronic systems |
| title_sort | high gain bandwidth off chip antenna loaded with metamaterial unit cell impedance matching circuit for sub terahertz near field electronic systems |
| topic | 620 Engineering & allied operations |
| url | https://repository.londonmet.ac.uk/8046/1/s41598-022-22828-3.pdf |
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