Characterization of a 90 degrees microstrip bend with arbitrary miter via the time-domain finite difference method

A 90 degrees microstrip bend with an arbitrary miter is characterized using the finite difference time-domain (FDTD) method. In this method, to simplify computations, the microstrip structure is enclosed by four electric walls; thus radiation effects are neglected. Time histories generated by FDTD techniques are Fourier-transformed to yield broadband scattering parameters of the microstrip bend. A miter is introduced to improve the transmission characteristics of the bend, and an optimal miter length is found such that the reflection from the microstrip bend over a broad frequency range is minimized. >

[1]  I. Fukai,et al.  Transient Analysis of a Stripline Having a Corner in Three-Dimensional Space , 1984 .

[2]  G. Mur.  Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electromagnetic-Field Equations , 1981, IEEE Transactions on Electromagnetic Compatibility.

[3]  A. Taflove,et al.  Numerical Solution of Steady-State Electromagnetic Scattering Problems Using the Time-Dependent Maxwell's Equations , 1975 .

[4]  R. Chadha,et al.  Compensation of Discontinuities in Planar Trainsmission Lines , 1982, 1982 IEEE MTT-S International Microwave Symposium Digest.

[5]  Gunter Kompa,et al.  S-matrix computation of microstrip discontinuities with a planar waveguide model , 1976 .

[6]  W. R. Jones,et al.  Symmetrically Truncated Right-Angle Corners in Parallel-Plate and Rectangular Waveguides , 1968 .

[7]  R. Mehran,et al.  Calculation of Microstrip Bends and Y-Junctions with Arbitrary Angle , 1978 .

[8]  W. K. Gwarek,et al.  Analysis of an Arbitrarily-Shaped Planar Circuit a Time-Domain Approach , 1985 .

[9]  K. Yee.  Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media , 1966 .

[10]  K. Mei,et al.  A super-absorbing boundary algorithm for solving electromagnetic problems by time-domain finite-difference method , 1988, 1988 IEEE AP-S. International Symposium, Antennas and Propagation.

[11]  Peter Silvester,et al.  Microstrip Discontinuity Capacitances for Right-Angle Bends, T Junctions, and Crossings , 1973 .

[12]  R. Douville,et al.  Experimental Study of Symmetric Microstrip Bends and Their Compensation , 1978 .

[13]  R. P. Owens.  Accurate analytical determination of quasi-static microstrip line parameters , 1976 .

[14]  I. Wolff,et al.  A Method for Calculating the Frequency-Dependent Properties of Microstrip Discontinuities , 1977 .

[15]  Zhang Xiaolei,et al.  Time-domain finite difference approach to the calculation of the frequency-dependent characteristics of microstrip discontinuities , 1988 .

[16]  Wojciech Gwarek,et al.  Analysis of arbitrarily shaped two-dimensional microwave circuits by finite-difference time-domain method , 1988 .

[17]  K. K. Mei,et al.  Calculations of the dispersive characteristics of microstrips by the time-domain finite difference method , 1988 .

[18]  Nathan Marcuvitz.  Waveguide Handbook , 1951 .