Wideband Conformal Antennas and Arrays

Abstract : The work done investigates some unexplored degrees of freedom in microstrip antenna design with the goal of developing a modified substrate configuration with improved bandwidth and maintained radiation characteristics. Results indicate that sectioned substrates can deliver increased impedance bandwidth. A closed-form circuit-based model is also developed to predict the performance of these new antenna structures. The modified substrate techniques developed here will be used along with loading and slot etching techniques studied previously to construct wideband planar antennas and arrays.

[1]  Kai Fong Lee,et al.  Analysis of broadband U-slot microstrip antenna , 1997 .

[2]  Vassilios Makios,et al.  Equivalent Circuits of Microstrip Impedance Discontinuities and Launchers , 1974 .

[3]  Y. L. Chow,et al.  A theory on the broadbanding of a patch antenna , 1997, Proceedings of 1997 Asia-Pacific Microwave Conference.

[4]  Gregory H. Huff,et al.  Analysis and design of broad-band single-layer rectangular U-slot microstrip patch antennas , 2003 .

[5]  A. Derneryd,et al.  A theoretical investigation of the rectangular microstrip antenna element , 1977 .

[6]  R. Murch,et al.  A compact PIFA suitable for dual-frequency 900/1800-MHz operation , 1998 .

[7]  P. Hall,et al.  Dual-frequency planar inverted-F antenna , 1997 .

[8]  William F. Richards IMPEDANCE CONTROL OF MICROSTRIP ANTENNAS UTILIZING REACTIVE LOADING , 1986 .

[9]  Yinchao Chen,et al.  A novel U-shaped planar microstrip antenna for dual-frequency mobile telephone communications , 2001 .

[10]  G. Thiele,et al.  Antenna theory and design , 1981 .

[11]  Erik O. Hammerstad,et al.  Equations for Microstrip Circuit Design , 1975, 1975 5th European Microwave Conference.

[12]  Y. T. Lo,et al.  THEORETICAL AND EXPERIMENTAL INVESTIGATION OF A MICROSTRIP RADIATOR WITH MULTIPLE LUMPED LINEAR LOADS , 1983 .

[13]  K. Sarabandi,et al.  Magneto-dielectrics in electromagnetics: concept and applications , 2004, IEEE Transactions on Antennas and Propagation.

[14]  R. Harrington Time-Harmonic Electromagnetic Fields , 1961 .

[15]  Kin-Lu Wong,et al.  Bandwidth enhancement of circularly-polarised microstrip antenna using chip-resistor loading , 1997 .

[16]  Dimitris Psychoudakis,et al.  Topology design optimization of dielectric substrates for bandwidth improvement of a patch antenna , 2003 .