A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna
A high-efficiency microwave power transmission (MPT) system based on an inverted class F (<inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1 }$ </tex-math></inline-formula>) rectifier for microwave wireless charging applications is presented in this paper. A...
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| Format: | Article |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9548900/ |
| _version_ | 1818736209913970688 |
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| author | Danh Manh Nguyen Ngoc Duc Au Chulhun Seo |
| author_facet | Danh Manh Nguyen Ngoc Duc Au Chulhun Seo |
| author_sort | Danh Manh Nguyen |
| collection | DOAJ |
| description | A high-efficiency microwave power transmission (MPT) system based on an inverted class F (<inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1 }$ </tex-math></inline-formula>) rectifier for microwave wireless charging applications is presented in this paper. A left-hand circular polarization (LHCP) transmitting antenna (Tx) is designed based on a modified sequential phase rotation (SPR) divider integrated with a <inline-formula> <tex-math notation="LaTeX">$2\times 2$ </tex-math></inline-formula> array. The proposed Tx exhibits compact size with LHCP maximum gain of 11.85 dBi at 5.8 GHz. Furthermore, the receiver is composed of an LHCP receiving antenna (Rx) and a microwave <inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1}$ </tex-math></inline-formula> rectifier. To realize the power radiated region of the Tx, an Rx with a wide beamwidth for minimizing distance loss is proposed, which has a 3-dB axial ratio (AR) beamwidth of 165.55° and 175.17° in the <inline-formula> <tex-math notation="LaTeX">$x - z$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$y - z$ </tex-math></inline-formula> planes, respectively. In addition, to improve the RF to DC conversion efficiency (<inline-formula> <tex-math notation="LaTeX">$\eta $ </tex-math></inline-formula>), the class <inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1}$ </tex-math></inline-formula> harmonic processing network is utilized at the load of the rectifier that can process the voltage and current waveforms without using a DC pass filter. The proposed <inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1}$ </tex-math></inline-formula> rectifier circuit occupies a compact area of <inline-formula> <tex-math notation="LaTeX">$15.3\times12.7$ </tex-math></inline-formula> mm<sup>2</sup>, and it exhibits an average <inline-formula> <tex-math notation="LaTeX">$\eta $ </tex-math></inline-formula> of 50% for the input power range from 4 to 20 dBm with a peak efficiency of 77.9% at 18 dBm. Overall, the experimental results show that our proposed system achieves a maximum power transmission efficiency (PTE) of 8.8% for wirelessly charging low-power multiple devices at a distance of 60–200 mm. |
| first_indexed | 2024-12-18T00:33:31Z |
| format | Article |
| id | doaj.art-f0b3628c885c4cd7ba52b81ead7542ec |
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| language | English |
| last_indexed | 2024-12-18T00:33:31Z |
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| spelling | doaj.art-f0b3628c885c4cd7ba52b81ead7542ec2022-12-21T21:27:04ZengIEEEIEEE Access2169-35362021-01-01913416313417310.1109/ACCESS.2021.31157629548900A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F RectennaDanh Manh Nguyen0https://orcid.org/0000-0001-7919-6672Ngoc Duc Au1https://orcid.org/0000-0001-7907-9134Chulhun Seo2https://orcid.org/0000-0002-6765-8734Department of Information and Communication Convergence, Soongsil University, Dongjak-gu, Seoul, South KoreaDepartment of Information and Communication Convergence, Soongsil University, Dongjak-gu, Seoul, South KoreaDepartment of Information and Communication Convergence, Soongsil University, Dongjak-gu, Seoul, South KoreaA high-efficiency microwave power transmission (MPT) system based on an inverted class F (<inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1 }$ </tex-math></inline-formula>) rectifier for microwave wireless charging applications is presented in this paper. A left-hand circular polarization (LHCP) transmitting antenna (Tx) is designed based on a modified sequential phase rotation (SPR) divider integrated with a <inline-formula> <tex-math notation="LaTeX">$2\times 2$ </tex-math></inline-formula> array. The proposed Tx exhibits compact size with LHCP maximum gain of 11.85 dBi at 5.8 GHz. Furthermore, the receiver is composed of an LHCP receiving antenna (Rx) and a microwave <inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1}$ </tex-math></inline-formula> rectifier. To realize the power radiated region of the Tx, an Rx with a wide beamwidth for minimizing distance loss is proposed, which has a 3-dB axial ratio (AR) beamwidth of 165.55° and 175.17° in the <inline-formula> <tex-math notation="LaTeX">$x - z$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$y - z$ </tex-math></inline-formula> planes, respectively. In addition, to improve the RF to DC conversion efficiency (<inline-formula> <tex-math notation="LaTeX">$\eta $ </tex-math></inline-formula>), the class <inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1}$ </tex-math></inline-formula> harmonic processing network is utilized at the load of the rectifier that can process the voltage and current waveforms without using a DC pass filter. The proposed <inline-formula> <tex-math notation="LaTeX">$\text{F}^{-1}$ </tex-math></inline-formula> rectifier circuit occupies a compact area of <inline-formula> <tex-math notation="LaTeX">$15.3\times12.7$ </tex-math></inline-formula> mm<sup>2</sup>, and it exhibits an average <inline-formula> <tex-math notation="LaTeX">$\eta $ </tex-math></inline-formula> of 50% for the input power range from 4 to 20 dBm with a peak efficiency of 77.9% at 18 dBm. Overall, the experimental results show that our proposed system achieves a maximum power transmission efficiency (PTE) of 8.8% for wirelessly charging low-power multiple devices at a distance of 60–200 mm.https://ieeexplore.ieee.org/document/9548900/Circularly polarized antennaharmonic processingmicrowave rectifierwireless power transmission (WPT)wireless charger |
| spellingShingle | Danh Manh Nguyen Ngoc Duc Au Chulhun Seo A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna IEEE Access Circularly polarized antenna harmonic processing microwave rectifier wireless power transmission (WPT) wireless charger |
| title | A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna |
| title_full | A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna |
| title_fullStr | A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna |
| title_full_unstemmed | A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna |
| title_short | A Microwave Power Transmission System Using Sequential Phase Ring Antenna and Inverted Class F Rectenna |
| title_sort | microwave power transmission system using sequential phase ring antenna and inverted class f rectenna |
| topic | Circularly polarized antenna harmonic processing microwave rectifier wireless power transmission (WPT) wireless charger |
| url | https://ieeexplore.ieee.org/document/9548900/ |
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