Papers - SAKAKIBARA Kunio
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Transition from Waveguide to Two Microstrip Lines with Slot Radiators in the Millimeter-Wave Band Reviewed
Kazuyuki Seo, Kunio Sakakibara, Nobuyoshi Kikuma
IEICE Transactions on Communications E94-B ( 5 ) 1184 - 1193 2011.05
Language：English Publishing type：Research paper (scientific journal)
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Millimeter-wave Microstrip Comb-line Antenna Using Reflection-canceling Slit Structure Reviewed
Y. Hayashi, K. Sakakibara, M. Nanjo, S. Sugawa, N. Kikuma, and H. Hirayama
IEEE Transactions on Antennas and Propagation 59 ( 2 ) 398 - 406 2011.02
Language：English Publishing type：Research paper (scientific journal)
A microstrip comb-line antenna is developed in the millimeter-wave band. When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly. Furthermore, re-radiation from elements due to the reflection wave degrades the design accuracy for the required radiation pattern. We propose the way to improve the reflection characteristic of the antenna with arbitrary beam directions including strictly a broadside direction. To suppress the reflection, we propose a reflection-canceling slit structure installed on the feeding line around each radiating element. A 27-element linear array antenna with a broadside beam is developed at 76.5 GHz. To confirm the feasibility of the simple design procedure, the performance is evaluated through the measurement in the millimeter-wave band.
Other Link： https://ieeexplore.ieee.org/document/5648450
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メタマテリアルの種明かし Invited Reviewed
榊原久二男
電子情報通信学会通信ソサイエティマガジン 25 - 33 2010.12
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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Narrow-Wall-Connected Microstrip-to-Waveguide Transition Using V-Shaped Patch Element in Millimeter-Wave Band Reviewed
K. Seo, K. Sakakibara, N. Kikuma
IEICE Transactions on Communications E93-B ( 10 ) 2523 - 2530 2010.10
Language：English Publishing type：Research paper (scientific journal)
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Narrow-Wall-Slotted Hollow-Waveguide Array Antenna Using Partially Parallel Feeding System in Millimeter-Wave Band Reviewed
Y. Ikeno, K. Sakakibara, N. Kikuma, H. Hirayama
IEICE Transactions on Communications E93-B ( 10 ) 2545 - 2553 2010.10
Language：English Publishing type：Research paper (scientific journal)
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Control of Power Dividing Ratio in Four-Way Power Divider for Feeding Microstrip Comb-Line Antenna Reviewed
Morihiko Nanjo, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama
IEICE Transactions on Communications E93-B ( 10 ) 2651 - 2654 2010.10
Language：English Publishing type：Research paper (scientific journal)
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進行波励振ミリ波平面アレーアンテナ Invited Reviewed
榊原久二男
電子情報通信学会論文誌 B分冊 J93-B ( 9 ) 1115 - 1126 2010.09
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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Study of Single Layer Slotted Waveguide Arrays
榊原 久二男
1996.03
Language：English Publishing type：Doctoral thesis
