VOL. E81-C No.12 DECEMBER 1998 ============================== @ == Special Issue on Computational Electromagnetics =============================================== . FOREWORD ....................................................... 1771 Masanori KOSHIBA and Hiroyoshi IKUNO PAPERS ====== . Presumption of Permittivity for Dielectric Inverse Scattering Problem\Source and Radiation Field Solution\ ................. 1773 Daisuke KATO and Shinobu TOKUMARU . Noncubic Cell Time-Domain Analysis of Scattering by Dielectric Cylinders ...................................................... 1779 Norihiko HARADA and Mitsuo HANO . Microwave Imaging of Perfectly Conducting Cylinders from Real Data by Micro Genetic Algorithm Coupled with Deterministic Method ... 1784 Fengchao XIAO and Hatsuo YABE . Characterization of Triplate Strip Resonators with a Loading Capacitor ...................................................... 1793 Toshiaki KITAMURA, Masahiro GESHIRO, Toshio ISHIZAKI, Tomoya MAEKAWA,and Shinnosuke SAWA . Analysis of Millimeter Wave Scattering Characteristics by a Photo-Induced Plasma Grating in a Semiconductor Slab ........... 1800 Kazuo NISHIMURA . A Precision Solution to Symmetrical Inductive Discontinuities of Finite Thickness in the Parallel-Plate Waveguides Using the Modified Residue-Calculus Method ............................... 1807 Toshihiko SHIBAZAKI and Teruhiro KINOSHITA . Simple and Efficient Adaptive Mesh Generation for Approximate Scalar Guided-Mode and Beam-Propagation Solutions ..................... 1814 Yasuhide TSUJI and Masanori KOSHIBA . FD-DT Analysis of Coaxial Probes Inserted into Rectangular Waveguides ..................................................... 1821 Atsushi SANADA, Minoru SANAGI, Shigeji NOGI, and Kuniyoshi YAMANE . Analysis on Nonlinear Characteristics of Electromagnetic Waves in a Ferrite Waveguide by FDTD Method ............................... 1831 Hitoshi SHIMASAKI, Toshiro KODERA, and Makoto TSUTSUMI . FDTD Analysis of Mutual Coupling of Cavity-Backed Slot Antenna Array ....................................................... 1838 Takashi HIKAGE, Manabu OMIYA, and Kiyohiko ITOH . Characterization of Microstrip Lines with Various Cross-Sections of Strip Conductors in Microwave Integrated Circuits .............. 1845 Keren LI . Method for Computing the Resonator Q and Effect of Grid Arrangement and Coarseness on the External Q in the FDTD Method ............ 1852 Yukio IIDA . Analysis of Gyro-Anisotropic Property by Condensed Node Spatial Network for Vector Potential ................................... 1861 Masato KAWABATA and Norinobu YOSHIDA . Radar Cross Section of an Open-Ended Rectangular Cylinder with an Iris inside the Cavity ......................................... 1875 Shinichiro OHNUKI and Takashi HINATA . FDTD Analysis of Three-Dimensional Light-Beam Scattering from the Magneto-Optical Disk Structure ................................. 1881 Yiwei HE, Toshitaka KOJIMA, Toru UNO, and Saburo ADACHI LETTERS ======= . Semivectorial Mode Analysis of a Rib Waveguide by an Imaginary-Distance Beam-Propagation Method Based on the Generalized Douglas Scheme ................................................. 1889 Junji YAMAUCHI, Jun SHIBAYAMA, Shu NAKAMURA, and Hisamatsu NAKANO . Performance of the Modified PML Absorbing Boundary Condition for Propagating and Evanescent Waves in Three-Dimensional Structures ....................................................... 1892 Zhewang MA and Yoshio KOBAYASHI . FDTD Method for Dispersive Medium Characterized by Rational Function ....................................................... 1898 Takuji ARIMA and Toru UNO . FDTD Implementation of Surface Impedance Boundary Condition for Dispersive Layer Backed by Perfect Conductor ................... 1902 Yasuhiro NISHIOKA, Osamu MAESHIMA, Toru UNO, and Saburo ADACHI Regular Section =============== PAPERS ====== [Electronic Circuits] . A High Performance Voltage Down Converter (VDC) Using New Flexible Control Technology of Driving Current .......................... 1905 Tetsuo ENDOH, Kazutoshi NAKAMURA, and Fujio MASUOKA [Semiconductor Materials and Devices] . A Study of Electrical Characteristics Improvements in Sub-0.1m Gate Length MOSFETs by Low Temperature Operation ............... 1913 Morikazu TSUNO, Shin YOKOYAMA, and Kentaro SHIBAHARA . Analysis of Structure Dependence of Very Short Channel Field Effect Transistor Using Vertical Tunneling with Heterostructures on Silicon ........................................................ 1918 Wataru SAITOH, Katsuyuki YAMAZAKI, Masafumi TSUTSUI, and Masahiro ASADA [Opto-Electronics] . Theoretical Transient Amplification Characteristics of Optical Waveguide Amplifiers Using Erbium Doped Garnet Crystalline Thin-Film ...................................................... 1926 Rakkappan BALASUBRAMANIAN and Yasumitsu MIYAZAKI [Microwave and Millimeter Wave Technology] . A Non-Reflection-Influence Method for On-Line Measurement of Permittivity Using MicrowaveFree-Space Technique ............... 1936 Zhihong MA and Seichi OKAMURA [Electromagnetic Theory] . Excitation of Magnetostatic Surface Wave by Coplanar Waveguide Transducers .................................................... 1942 Yoshiaki ANDO, Ning GUAN, Ken'ichiro YASHIRO, and Sumio OHKAWA . Efficient Evaluation of Aperture Field Integration Method for Polyhedron Surfaces and Equivalence to Physical Optics ......... 1948 Suomin CUI and Makoto ANDO . ABSTRACTS (IEICE Trans., Vol. J81-C-T, Vol. J81-C-U, No.12 in Japanese) ...................................................... 1956 . 1998INDEX ...................................................... 1959