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Data on Antennas and Propagation Discussed by Researchers at National Taiwan University of Science and Technology (Circularly Polarized Chip Antenna...

September 9, 2014



Data on Antennas and Propagation Discussed by Researchers at National Taiwan University of Science and Technology (Circularly Polarized Chip Antenna Design for GPS Reception on Handsets)

By a News Reporter-Staff News Editor at Journal of Technology -- Research findings on Antennas and Propagation are discussed in a new report. According to news reporting from Taipei, Taiwan, by VerticalNews journalists, research stated, "A compact global positioning system (GPS) antenna applicable for mobile handsets is presented. The key geometric feature is the use of a parasitic coupled feed, which forms a parallel LC resonator on the antenna chip."

The news correspondents obtained a quote from the research from the National Taiwan University of Science and Technology, "It draws currents on the chip and nearby ground plane edges so that pattern and polarization properties can be manipulated with an extended antenna region. By setting up a phase difference and balancing the magnitudes of perpendicular currents, a circularly polarized reception pattern is generated. The moderately directive upward pattern is convenient for navigation uses. The proposed antenna exhibits not only a circularly polarized pattern, but also decent gain and good matching. GPS reception performance evaluation is conducted by calculating mean effective gain and interference rejection rate based on radiation patterns. The results confirm its superior performance. The optimal antenna location on the board is also found via this approach. The antenna is of simple structure, low profile, and requires no clearance region on the board. A planar configuration is also presented. This alternative design can be integrated within the system board and conveniently installed in extremely thin devices."

According to the news reporters, the research concluded: "Rigorous parametric studies were conducted to develop tuning measures useful in transporting the design to other platforms."

For more information on this research see: Circularly Polarized Chip Antenna Design for GPS Reception on Handsets. IEEE Transactions on Antennas and Propagation, 2014;62(7):3482-3489. IEEE Transactions on Antennas and Propagation can be contacted at: Ieee-Inst Electrical Electronics Engineers Inc, 445 Hoes Lane, Piscataway, NJ 08855-4141, USA. (Institute of Electrical and Electronics Engineers - www.ieee.org/; IEEE Transactions on Antennas and Propagation - ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=8)

Our news journalists report that additional information may be obtained by contacting W.J. Liao, Natl Taiwan Univ Sci & Technol, Dept. of Elect Engn, Taipei 10607, Taiwan. Additional authors for this research include J.T. Yeh and S.H. Chang.

Keywords for this news article include: Taipei, Taiwan, Asia, Antennas and Propagation

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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