An Improved Rectenna for Wireless Power Transmission for Unmanned Air Vehicles

Abstract

This thesis continues an NPS project related to wireless power transmission for micro air vehicles (MAVs). The conversion of radio-frequency (rf) power into usable direct-current (dc) power is performed by a rectifying antenna, or rectenna. The emphasis of this thesis is the simulation and experimental study of various rectenna designs to determine which best provides high efficiency, stable output power, and lightweight design. The analysis of rectenna design focuses on four subsystems: (1) the receiving antenna, (2) the matching sections, (3) the rectification, and (4) the post-rectification filter. Based on the findings of this research, the ultimate rectenna design implements a half-wave dipole antenna that performs full-wave rectification with two diodes. The post-rectification filter is implemented by a capacitor to obtain stable dc power. The final design achieved an efficiency of nearly 66% for input power in the range of 200 mW.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2011
Accession Number
ADA552010

Entities

People

  • Chun-yi Liu

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Antennas
  • Capacitors
  • Diodes
  • Dipole Antennas
  • Electromagnetic Fields
  • Energy Harvesting
  • Frequency
  • Micro Air Vehicles
  • Radio Frequency
  • Radio Waves
  • Rectifiers
  • Schottky Diodes
  • Semiconductors
  • Simulations
  • Solar Energy
  • Unmanned Aerial Vehicles

Readers

  • Aerial Unmanned Vehicle Swarm Micro Periodontal Dentistry.
  • Electrical Engineering
  • Phased Array Antenna Design.

Technology Areas

  • Autonomy