Abstract
This paper presents a linear-polarization-insensitive rectenna for the ground-to-air microwave power transmission (MPT). With an integration of a hybrid coupler and a dual-linearly-polarized (DLP) antenna, a linearly-polarized (LP) incident wave can be decomposed by the antenna polarization tilts into the horizontally-polarized (HP) and the vertically-polarized (VP) components, correspondingly, which are then distributed evenly through the hybrid coupler as the inputs of two successive lumped rectifiers. Thus, RF-to-dc power conversion efficiencies (PCEs) of the presented DLP rectenna maintain insensitive to its incident LP polarization tilts. An aperture-coupled feeding mechanism and lumped matching networks are employed to enable the compact DLP rectenna design for practicality. Both theoretical analysis and experimental results validate that the RF-to-dc PCEs of the DLP rectenna keeps stable high regardless of its LP polarization tilts, which demonstrates a prospect for the ground-to-air MPT applications.
Original language | English |
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Article number | 9103005 |
Pages (from-to) | 101702-101707 |
Number of pages | 6 |
Journal | IEEE Access |
Volume | 8 |
DOIs | |
State | Published - 2020 |
Keywords
- Dual-linearly-polarized (DLP) antenna
- Hybrid coupler
- Linearly-polarized (LP) wave
- Microwave power transmission (MPT)
- Rectifier