Characteristic Modes: Theory and Applications in Antenna by Yikai Chen, Chao-Fu Wang

By Yikai Chen, Chao-Fu Wang

Describes how one can systematically enforce a variety of attribute mode (CM) theories into designs of functional antenna systems

This e-book examines either theoretical advancements of attribute modes (CMs) and sensible advancements of CM-based methodologies for a number of severe antenna designs. The e-book is split into six chapters. bankruptcy 1 offers an advent and discusses the new advances of the CM concept and its purposes in antenna engineering. bankruptcy 2 describes the formula of the attribute mode thought for completely electrically undertaking (PEC) our bodies and discusses its numerical implementations. bankruptcy three provides the CM concept for PEC buildings embedded in multilayered medium and its functions. bankruptcy four covers fresh advances in CM conception for dielectric our bodies and in addition their purposes. bankruptcy five discusses the CM conception for N-port networks and its functions to the layout of antenna arrays. ultimately, bankruptcy 6 discusses the layout of platform-integrated antenna structures utilizing attribute modes.

This booklet positive factors the following:

  • Introduces attribute mode theories for numerous electromagnetic constructions together with PEC our bodies, buildings in multilayered medium, dielectric our bodies, and N-port networks
  • Examines CM purposes in electrically small antennas, microstrip patch antennas, dielectric resonator antennas, multiport antennas, antenna arrays, and platform fixed antenna systems
  • Discusses numerical algorithms for the implementation of the attribute mode theories in laptop code

Characteristic Modes: conception and purposes in Antenna Engineering will support antenna researchers, engineers, and scholars locate new strategies for his or her antenna layout challenges. 

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Additional resources for Characteristic Modes: Theory and Applications in Antenna Engineering

Example text

Antenna array) become conceptually simpler. Many researchers have applied the characteristic port modes in the analysis and design of multiport antenna systems such as the multiple input multiple output (MIMO) antenna systems [27] and the wideband antenna arrays [28]. Both dielectric and magnetic materials are widely used in radiation systems. Therefore, CM theory for structures with different materials is highly demanded. In the 1970s, Harrington and his colleagues attempted to extend the CM theory to structures involving different materials [29, 30].

AP‐30, no. 4, pp. 571–575, Jul. 1982. 24Introduction [37] D. Liu, R. J. Garbacz, and D. M. Pozar, “Antenna synthesis and optimization using generalized characteristic modes,” IEEE Trans. , vol. 38, no.  862–868, Jun. 1990. [38] C. M. Butler, Y. Rahmat‐Samii, and R. Mittra, “Electromagnetic penetration through apertures in conducting surfaces,” IEEE Trans. , vol. AP‐26, no. 1, pp. 82–93, Jan. 1978. [39] H. A. Bethe, “Theory of diffraction by small holes,” Phys. , vol. 66, no. 7–8, pp. 163–182, Oct.

In particular, they developed a synthesis procedure to obtain the real current such that the far‐field pattern approximates the desired one in a least mean‐ square sense. This initial concept laid the foundation for further radiation pattern or scattering pattern synthesis using the CM theory. It also pointed out that these reactive loads could be realized in the form of tuned slots and stubs on the scatterers. In 1973, Yee and Garbacz developed simple quadratic forms for the self‐ and mutual‐admittances of delta‐gaps located along a perfectly conducting thin wire [67].

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