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Rectifier array based on efficient power recycling with extended ranges of input power and frequency
- Authors
- Lee, Daju; Oh, Juntaek
- Issue Date
- Sep-2021
- Publisher
- WILEY
- Keywords
- branch& #8208; line coupler; rectifier; wide input power range; wideband; wireless power transfer
- Citation
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.63, no.9, pp.2387 - 2391
- Journal Title
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
- Volume
- 63
- Number
- 9
- Start Page
- 2387
- End Page
- 2391
- ISSN
- 0895-2477
- Abstract
- This article presents a rectifier array for wide ranges of input power and frequency. The rectifier array was configured using two sub-rectifiers and a 3-dB branch-line coupler to recycle the reflected input power through impedance mismatch, thereby extending the input power range. The two-section branch-line coupler is merged with matching networks to improve the power conversion efficiency (PCE) and operating bandwidth while maintaining a wide input power range. For demonstration, the proposed rectifier array was designed and fabricated. It achieved a PCE higher than 50% within the input power range of 14-33 dBm. The measured peak PCE remained above 50% within a wide frequency range of 1.5-2.7 GHz.
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Related Researcher
- Oh, JunTaek
- College of Information Technology (Department of IT Convergence)