Analysis of Coupling between CPW-Fed Slot Antennas Using FDTD with PML Boundary Conditions

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概要

• 論文の詳細を見る

• A rigorous analysis of coupling between two twin-slot antennas using the Finite Difference Time Domain (FDTD) method is reported for the first time. The Phase Cancellation Effect (PCE) is used to reduce the coupling due to the TM_0 surface wave mode between the Coplanar Waveguide (CPW) fed cascade-connected twin-slot antennas. To confirm the effectiveness of this approach, coupling between single-slot and twin-slot elements separated by λ_0/2 was analysed. The coupling between the two single-slot antennas was S_<21>=-30.2 dB. For the case of two twin-slot antennas, the coupling was found to be -37.8 dB, 7.6 dB below that of the single-slot antennas. The phase cancellation effect of surface waves is significant in reducing coupling between two twin-slot antennas, in addition to minimising power loss into substrate modes. A memory optimised implementation of the FDTD method with the Berenger Perfectly Matched Layer (PML) Absorbing Boundary Condition (ABC) was used for the numerical analysis.

• 社団法人電子情報通信学会の論文
• 1997-12-25

著者

• Yamashita Eikichi

  Faculty of Electro-Communications, University of Electro-Communications

• Qian Y

  Univ. California Los Angeles

• Saario S

  Radio Science Laboratory Faculty Of Engineering School Of Microelectronic Engineering Griffith Unive

• SAARIO Seppo

  Radio Science Laboratory, Faculty of Engineering, School of Microelectronic Engineering, Griffith Un

• QIAN Yongxi

  Faculty of Electronic Engineering, University of Electro-Communications

• Saario Seppo

  Radio Science Laboratory Faculty Of Engineering School Of Microelectronic Engineering Griffith Unive

• Yamashita Eikichi

  Faculty Of Electronic Engineering University Of Electro-communications

• Yamashita Eikichi

  Faculty Of Electro-communications University Of Electro-communications

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• Analysis of Coupling between CPW-Fed Slot Antennas Using FDTD with PML Boundary Conditions
• Accurate Analysis of Various Planar Transmission Lines with Finite Metallization Thickness Using Eigen-Function Weighted Boundary Integral Equation Method
• Exact Simulation of Picosecond Electrical Pulse Generation Using Nonlinear Microwave Transmission Lines

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