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Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Aya Yamamoto.
ieee antennas and propagation society international symposium | 2001
Y. Kawahara; Aya Yamamoto; Y. Sekine; N. Baba; M. Kobayashi
A novel millimeter-wave leaky-wave antenna is described which consists of a dielectric slab loaded by metallic strips periodically. By applying several new techniques to reduce conductor loss of the ground plane and to suppress the reflections in the dielectric waveguide due to the metallic strips, we achieved a very high antenna efficiency, exceeding 70% at the 76 GHz band.
ieee antennas and propagation society international symposium | 2007
Takashi Kawamura; Aya Yamamoto
A printed antenna composed of via-wall-cavity with a rim excited by a bow-tie antenna is presented that suppresses surface-waves generated in thick substrate, consequently exhibits wideband antenna characteristics. It is demonstrated that a developed 2 times 4-element array for UWB automotive radar performs 15 dBi gain over 20% bandwidth, and has a band rejection notch which reduces effectively interferences between UWB radars and radio services using the restricted frequency band.
Archive | 2001
Yuki Kawahara; Takashi Hidai; Aya Yamamoto
Archive | 1999
Aya Yamamoto
Archive | 2000
Yuki Kawahara; Takashi Hidai; Aya Yamamoto
IEICE Transactions on Communications | 2001
Tasuku Teshirogi; Yuki Kawahara; Aya Yamamoto; Yuji Sekine; Nobuyuki Baba; Masanao Kobayashi
Archive | 2011
Shigenori Mattori; Takashi Kawamura; Aya Yamamoto
Archive | 2009
Takashi Kawamura; Aya Yamamoto; Toru Sakuma; Yukiyasu Kimura; Yasuhiko Nago
Archive | 2000
Yuki Kawahara; Aya Yamamoto; Yuji Sekine; Nobuyuki Baba; Masanao Kobayashi
IEICE Transactions on Communications | 2012
Takashi Kawamura; Aya Yamamoto; Toru Sakuma; Yasuhiko Nago; Shigenori Mattori
