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Design and Optimization of a Planar Dual ¿¿¿¿¿¿¿¿¿¿¿¿“ Polarized, End ¿¿¿¿¿¿¿¿¿¿¿¿“ Fire UHF Antenna For a Handheld RFID Reader

Abstract Details

2012, Master of Science, Ohio State University, Electrical and Computer Engineering.
A novel UHF antenna for a handheld RFID reader is proposed, designed and optimized using ANSYS HFSS simulation software. The optimized design is fabricated and tested, for S ¿¿¿¿¿¿¿¿¿¿¿¿“ parameters and gain, using a network analyzer. The antenna structure designed is low ¿¿¿¿¿¿¿¿¿¿¿¿“ profile, planar, end ¿¿¿¿¿¿¿¿¿¿¿¿“ fire radiating and dual ¿¿¿¿¿¿¿¿¿¿¿¿“ polarized. It is a promising substitute to other existing conventional antennas used such as patch antennas (broadside radiating and linearly/circularly polarized) and helical antennas (end ¿¿¿¿¿¿¿¿¿¿¿¿“ fire radiating and circularly polarized) which are comparatively bulkier to be mounted on a handheld reader. The proposed antenna provides dual ¿¿¿¿¿¿¿¿¿¿¿¿“ polarized gain so that the tags of both orientations (horizontal and vertical) can be read effectively when the reader is pointed at them. Due to its attribute of dual polarization, it forms a vital substitute to the already available planar and end ¿¿¿¿¿¿¿¿¿¿¿¿“ fire radiating antenna designs like Yagi, which are capable of providing only one kind of a polarization. This constraint renders the tags of opposite polarizations to be left unread by the reader, unless the reader itself is twisted to align the polarization direction with the orientation of the tag to be read. The dual polarization of this antenna is provided by combining two different antenna geometries, yielding orthogonal polarizations, onto a single platform and having different excitation ports to feed the two structures when connected to a two ¿¿¿¿¿¿¿¿¿¿¿¿“ port reader.
Dr. Robert Burkholder (Advisor)
Dr. Prabhakar Pathak (Committee Member)
143 p.

Recommended Citations

Citations

  • Grover, N. (2012). Design and Optimization of a Planar Dual ¿¿¿¿¿¿¿¿¿¿¿¿“ Polarized, End ¿¿¿¿¿¿¿¿¿¿¿¿“ Fire UHF Antenna For a Handheld RFID Reader [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337708798

    APA Style (7th edition)

  • Grover, Nikhil. Design and Optimization of a Planar Dual ¿¿¿¿¿¿¿¿¿¿¿¿“ Polarized, End ¿¿¿¿¿¿¿¿¿¿¿¿“ Fire UHF Antenna For a Handheld RFID Reader. 2012. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1337708798.

    MLA Style (8th edition)

  • Grover, Nikhil. "Design and Optimization of a Planar Dual ¿¿¿¿¿¿¿¿¿¿¿¿“ Polarized, End ¿¿¿¿¿¿¿¿¿¿¿¿“ Fire UHF Antenna For a Handheld RFID Reader." Master's thesis, Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337708798

    Chicago Manual of Style (17th edition)