Abstract
This article proposes a single band circularly polarized (CP) rectenna operate at a 2.45 GHz Wi-Fi band, using a hexagonal shape of a microstrip radiator and a voltage doubler rectifier for smart city applications. A partial ground plane embedded with isosceles triangular slot and notch helps in obtaining the desired resonance characteristics with improved antenna performance and reasonable miniaturization. Two crossed-slots, introduced into the radiating patch, yield CP characteristics. Also, the proposed antenna shows an omnidirectional radiational behavior that helps in harvesting RF energy from all of its surroundings. A voltage doubler configuration using the SMS7630-005 LF diode is chosen for designing a rectifier circuit to achieve a maximum conversion efficiency of 65.1% and an output voltage of 1.65 V at an input power of 0 dBm for the load resistance value of 4.1 kΩ which is very much suitable for powering low power sensing devices.
| Original language | English |
|---|---|
| Pages (from-to) | 407-423 |
| Number of pages | 17 |
| Journal | Journal of Electromagnetic Waves and Applications |
| Volume | 36 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2022 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2021 Informa UK Limited, trading as Taylor & Francis Group.
Keywords
- Antenna
- circular polarization (CP)
- gain
- hexagonal shape of a patch
- power conversion efficiency
- rectenna
- rectifier
- voltage-doubler configuration
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Physics and Astronomy
- Electrical and Electronic Engineering
