Journal
JOURNAL OF DISPLAY TECHNOLOGY
Volume 6, Issue 11, Pages 558-564Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JDT.2010.2045474
Keywords
Antenna; direct-write; flexible display; inverted-F-antenna (IFA); paper; WLAN
Funding
- Department of Defense, Army Research Office [W911NF-09-1-0277]
- National Science Foundation [ECS-0824034]
- NASA [NNX07AL04A]
- National Science Foundation/EPSCoR [0903804, 0554609]
- State of South Dakota
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0824034] Funding Source: National Science Foundation
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This paper presents the design, fabrication and measurements of a direct-write printed low-cost and flexible inverted-F antenna on an ultra-low-cost paper-based organic substrate for wireless local area network (WLAN) and flexible display applications. Innovations include the study and utilization of paper as a high-frequency substrate for the first time in the gigahertz (GHz) range, the fabrication technology for the direct-write printing of the antenna as a flexible RF electronic device, and the investigation of antenna flexibility in conjunction with flexible displays. Although paper substrates exhibit relatively high dielectric losses (tan delta similar to 0.065 at 2.45 GHz), the maximum realized gain of the fabricated antenna is measured to be +1.2 dBi giving a total efficiency similar to 82%. Simulated results of the antenna's return loss and radiation patterns agree well with the measurements, and can lead to a whole new class of flexible low-cost electronic devices of the future.
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