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In this paper, characteristic modes involved in smart phone are analyzed using the available CMA code in the comprehensive 3D electromagnetic field solver HW (HyperWorks) FEKO. A typical design workflow of characteristic mode analysis is considered to meet design specifications. It includes investigation of the structure, excitation of the correct modes, and verification of the design parameters....
This paper introduces some of the latest additions to the electromagnetic solution kernel of FEKO for the simulation of complex, real world electromagnetic radiation and scattering problems. Extensions to model general 3D anisotropic materials are presented with two examples. A new preconditioner for the MLFMM shows an extremely fast setup time. Curvilinear surface modeling is complemented by curvilinear...
We examine the connection between the characteristic mode analysis of a radiating body and the impedance bandwidth of the body when used as an antenna. The impedance bandwidth depends on the characteristic modes of the body and how the various modes are excited. To estimate the obtainable bandwidth of non-resonant antennas, we use the bandwidth potential technique which gives more reliable and practical...
Mobile communications technology is constantly changing with the increasing demands of the consumers and Long Term Evolution (LTE) is widely accepted as the technology that can meet these requirements. This paper presents an electrically small antenna designed for European LTE frequency band of 1800MHz. A systematic design procedure is developed using characteristic mode analysis (CMA). The CMA design...
The coupling mechanisms between the active traces and a victim trace with two victim ports on a real phone PCB model was investigated with FDTD simulation in this paper. The studied scenarios include the PCB with a full shielding, perforated shielding and no shielding. Firstly, the coupling performance of the real phone PCB was reproduced with numerical simulations. According to the simulation results,...
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