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Title: Small dual-frequency microstrip antennas
Authors: Gao, S.-C. 
Li, L.-W. 
Yeo, T.-S. 
Leong, M.-S. 
Keywords: Dual frequency
Microstrip antenna
Small antenna
Issue Date: Jan-2002
Citation: Gao, S.-C., Li, L.-W., Yeo, T.-S., Leong, M.-S. (2002-01). Small dual-frequency microstrip antennas. IEEE Transactions on Vehicular Technology 51 (1) : 28-35. ScholarBank@NUS Repository.
Abstract: The characteristics of a dual-frequency compact antenna, which uses a rectangular microstrip patch with a shorting pin, are studied. Compared with the conventional rectangular patch antenna, this antenna can achieve both a significant reduction of antenna size and a dual-frequency operation with a single feed. A detailed parameter study is performed. The theoretical analysis is based on the finite-difference time-domain (FDTD) method. The FDTD codes are developed and validated by measurement results. One antenna has designed and fabricated, and the comparisons between the measured results and the calculated results are provided. The effects of several antenna parameters on two resonant frequencies, frequency ratio, and radiation pattern characteristics of the antenna have been analyzed and compared. Results of the return loss are also presented. It is shown that various frequency ratios (2.82-4.23) can be obtained by varying the design parameters of this antenna. Several design curves are also presented.
Source Title: IEEE Transactions on Vehicular Technology
ISSN: 00189545
DOI: 10.1109/25.992065
Appears in Collections:Staff Publications

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