A Compact Meandered Microstrip Patch Antenna
14. 15.
16. 17.
Large 2D Scatterers,’’ 11th Annual Re¨ iew of Progress in Applied Computational Electromagnetics, p. 606, 1995. S. Stein, ‘‘Addition Theorems for Spherical Wave Functions,’’ Q. Appl. Math., Vol. 19, No. 1, 1961, pp. 15 24. W. C. Chew, Wa¨ es and Fields in Inhomogeneous Media, Van Nostrand Reinhold, New York, 1990, reprinted by IEEE Press, 1995. W. K. Tung, Group Theory in Physics, World Scientific Publishing Co., Singapore, 1984. J. A. Stratton, Electromagnetic Theory, McGraw-Hill, New York, 1941.
this article, and characteristics of the antenna are experimentally investigated.
2. DESIGN CONSIDERATIONS AND EXPERIMENTAL RESULTS
1997 John Wiley & Sons, Inc. CCC 0895-2477r97
A COMPACT MEANDERED CIRCULAR MICROSTRIP ANTENNA WITH A SHORTING PIN
1
Kin-Lu Wong,1 Chia-Luan Tang,1 and Hong-Twu Chen 2 Department of Electrical Engineering National Sun Yat-Sen University Kaohsiung, Taiwan 804, Republic of China 2 Department of Electrical Engineering Chinese Military Academy Fong-Shan, Taiwan 830, Republic of China Recei¨ ed 8 January 1997 ABSTRACT: By using a shorting pin and meandering the circular patch, a compact circular microstrip antenna with a patch size of less than 10% of the con¨ entional circular patch antenna can be easily obtained. The design of such compact circular microstrip antennas is described, and experimental results are presented and discussed. 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 15: 147 149, 1997 Key words: compact circular microstrip antenna; meandered circular patch; shorting pin 1. INTRODUCTION
Figure 1 shows the configuration of the short-circuited, meandered circular microstrip antenna. The circular patch is short-circuited at the edge with a shorting pin, and three narrow slots of the same length Ž l . and width Ž w . are cut in the patch. The shorting pin makes the circular patch resonate at a much lower frequency w2x, as compared with a conventional circular patch of the same size. The
16. 17.
Large 2D Scatterers,’’ 11th Annual Re¨ iew of Progress in Applied Computational Electromagnetics, p. 606, 1995. S. Stein, ‘‘Addition Theorems for Spherical Wave Functions,’’ Q. Appl. Math., Vol. 19, No. 1, 1961, pp. 15 24. W. C. Chew, Wa¨ es and Fields in Inhomogeneous Media, Van Nostrand Reinhold, New York, 1990, reprinted by IEEE Press, 1995. W. K. Tung, Group Theory in Physics, World Scientific Publishing Co., Singapore, 1984. J. A. Stratton, Electromagnetic Theory, McGraw-Hill, New York, 1941.
this article, and characteristics of the antenna are experimentally investigated.
2. DESIGN CONSIDERATIONS AND EXPERIMENTAL RESULTS
1997 John Wiley & Sons, Inc. CCC 0895-2477r97
A COMPACT MEANDERED CIRCULAR MICROSTRIP ANTENNA WITH A SHORTING PIN
1
Kin-Lu Wong,1 Chia-Luan Tang,1 and Hong-Twu Chen 2 Department of Electrical Engineering National Sun Yat-Sen University Kaohsiung, Taiwan 804, Republic of China 2 Department of Electrical Engineering Chinese Military Academy Fong-Shan, Taiwan 830, Republic of China Recei¨ ed 8 January 1997 ABSTRACT: By using a shorting pin and meandering the circular patch, a compact circular microstrip antenna with a patch size of less than 10% of the con¨ entional circular patch antenna can be easily obtained. The design of such compact circular microstrip antennas is described, and experimental results are presented and discussed. 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 15: 147 149, 1997 Key words: compact circular microstrip antenna; meandered circular patch; shorting pin 1. INTRODUCTION
Figure 1 shows the configuration of the short-circuited, meandered circular microstrip antenna. The circular patch is short-circuited at the edge with a shorting pin, and three narrow slots of the same length Ž l . and width Ž w . are cut in the patch. The shorting pin makes the circular patch resonate at a much lower frequency w2x, as compared with a conventional circular patch of the same size. The