Publications (8)6.63 Total impact
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Article: Dual-band circularly-polarized square microstrip antenna
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ABSTRACT: New designs of obtaining dual-band circular polarization (CP) radiation of a single-feed square microstrip antenna are proposed and experimentally studied. The proposed single-feed dual-band CP designs are achieved by inserting four T-shaped slits at the patch edges or four Y-shaped slits at the patch corners of a square microstrip antenna. From experiments conducted, a patch size reduction as large as 36% for the proposed design, compared to a conventional CP design without the inserted slits, has been obtained. Details of the design considerations of the proposed antennas are described, and experimental results of the obtained dual-band CP performances are presented and discussedIEEE Transactions on Antennas and Propagation 04/2001; · 2.15 Impact Factor -
Conference Proceeding: Compact dual-frequency operation of rectangular microstrip antennas
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ABSTRACT: The present article proposes two promising compact dual-frequency antenna designs with four narrow slots or four T-shaped slots. The proposed designs have been successfully implemented. The two operating frequencies can easily be controlled by the aspect ratio of the rectangular patch and the slot size embedded in the patch. Results also indicate that the two proposed designs can have a larger antenna size reduction for a fixed dual-frequency operation than the compact dual-frequency designs shown in Wong and Yang (1997, 1998)Antennas and Propagation Society International Symposium, 1999. IEEE; 09/1999 -
Article: Compact circularly polarized triangular microstrip antenna with y‐shaped slot
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ABSTRACT: A novel compact circular polarization (CP) design of a single-feed equilateral-triangular microstrip antenna with a Y-shaped slot is presented. The Y-shaped slot is cut in the patch with its upper two arms facing either the triangle tip or the bottom side of the triangular patch. Results show that, with a proper size of the Y-shaped slot, the present proposed design can have an antenna size reduction up to about 19% for operating at a given frequency for circular polarization, as compared to the regular-size circularly polarized triangular microstrip antenna. The proposed antenna design is described and studied. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 31–34, 1999.Microwave and Optical Technology Letters 12/1998; 20(1):31 - 34. · 0.62 Impact Factor -
Conference Proceeding: Slot-coupled compact triangular microstrip antenna with lumped load
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ABSTRACT: The characteristics of a slot-coupled small triangular microstrip antenna with a shorting-pin or chip-resistor loading have been studied. Both the shorted and chip-resistor-loaded patch antennas show a significant reduction in the antenna size, as compared with the regular patch antenna, at a fixed operating frequency. The chip-resistor-loaded patch antenna also has a much broader operating bandwidth, as compared to the regular patch or shorted patch antennas. Furthermore, the related designs applied to the rectangular and circular microstrip antennas have also been implementedAntennas and Propagation Society International Symposium, 1998. IEEE; 07/1998 -
Article: Inclined-slot-coupled compact dual-frequency microstrip antenna with cross-slot
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ABSTRACT: A design using an inclined-slot-coupling feed for dual-frequency operation of a rectangular microstrip antenna with a cross-slot is described. Results show that, for a given dual-frequency operation, a reduction in antenna size of ~40% can be achieved by using this design. Also, the frequency ratio of the two frequencies is very slightly affected by the cross-slot length, and mainly determined by the aspect ratio of the patch, making the design simpler and easier to implementElectronics Letters 03/1998; · 0.96 Impact Factor -
Article: Compact dual-frequency microstrip antenna with a pair of bent slots
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ABSTRACT: A novel, compact, dual-frequency design for cutting a pair of bent slots in the centre of a rectangular patch is demonstrated. For fixed dual-frequency operation, the proposed design provides an antenna-size reduction as high as 32% compared to that of using a simple patch without the slots. Experimental results of the proposed design, with various sizes of the bent slots, are presented and analysedElectronics Letters 03/1998; · 0.96 Impact Factor -
Article: Modified planar inverted F antenna
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ABSTRACT: The design of a modified planar inverted F antenna (PIFA) which is more compact (antenna length <λ<sub>0</sub>/8 and antenna height <0.01 λ<sub>0</sub>) and has a much wider antenna bandwidth (greater than 10 times that of a simple PIFA) is demonstrated. The reduction in antenna length is achieved by meandering the radiating patch, while the enhanced bandwidth with low antenna height is obtained using a chip-resistor load in place of the shorting post. A typical design of the modified PIFA in the 800 MHz band has been implemented, and experimental results are presented and discussedElectronics Letters 02/1998; · 0.96 Impact Factor -
Article: Small dual-frequency microstrip antenna with cross slot
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ABSTRACT: A new design of single-feed, reduced-size dual-frequency rectangular microstrip antenna with a cross slot of equal length is presented. The frequency ratio of the two operating frequencies is mainly determined by the aspect ratio of the rectangular patch, and the reduction in the two operating frequencies is achieved by cutting a cross slot in the microstrip patch. Details of the experimental results for such a design are presented and discussedElectronics Letters 12/1997; · 0.96 Impact Factor
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Institutions
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1997–2001
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National Sun Yat-sen University
- Department of Electrical Engineering
Kaohsiung, Kaohsiung, Taiwan
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