Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Kazushi Nishizawa"'
Publikováno v:
IEEJ Transactions on Electrical and Electronic Engineering. 7:343-349
This paper presents an optimal radome design using particle swarm optimization (PSO) which has recently drawn considerable attention in a wide range of applications. The frequency characteristics of the transmission coefficient for the radome are ado
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff832a168ffd95bab8361f5ac326d0f1
https://doi.org/10.1002/tee.21738
https://doi.org/10.1002/tee.21738
Autor:
Hiroaki Miyashita, Satoshi Yamaguchi, Yoshihiko Konishi, Yukihiro Tahara, Kazushi Nishizawa, Toru Takahashi
Publikováno v:
IEICE Transactions on Communications. :2870-2877
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee057565a47c49c097d92bc7bb6db39f
https://doi.org/10.1587/transcom.e95.b.2870
https://doi.org/10.1587/transcom.e95.b.2870
Publikováno v:
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)). 74:I_25-I_35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eac8fc28dfd750b17c07c3a5f5ef773
https://doi.org/10.2208/jscejseee.74.i_25
https://doi.org/10.2208/jscejseee.74.i_25
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 129:729-735
An alternative definition of the wavelet transform matrix used for the sparsification of the moment matrix in the method of moments (MoM) is developed. In scattering problems, if the scatterer is a finite periodic structure, the moment matrix has a p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20565de97661908426324ff386ba1e96
https://doi.org/10.1541/ieejfms.129.729
https://doi.org/10.1541/ieejfms.129.729
Publikováno v:
Electronics and Communications in Japan (Part I: Communications). 85:33-43
In order to carry out high-precision measurement of the radiation characteristics of antennas and to evaluate the reflection characteristics of microwave anechoic chamber used for antenna measurement, it is important to recognize the location and int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d65af74ef98557e401275a516f20aa79
https://doi.org/10.1002/ecja.1088
https://doi.org/10.1002/ecja.1088
Publikováno v:
IEEE Transactions on Antennas and Propagation. 47:1716-1726
A new type of collinear antenna called electromagnetically coupled coaxial dipole array antenna is proposed. The antenna has an advantage of structural simplicity due to a novel use of an electromagnetically coupled feed structure for the radiating e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::503824a8e3dc7a643b1a9c5e0ee2c9a9
https://doi.org/10.1109/8.814952
https://doi.org/10.1109/8.814952
Publikováno v:
Electronics and Communications in Japan (Part I: Communications). 80:10-19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63690f04a28273c07b3c825434ce41ea
https://doi.org/10.1002/(sici)1520-6424(199710)80:10<10::aid-ecja2>3.0.co
https://doi.org/10.1002/(sici)1520-6424(199710)80:10<10::aid-ecja2>3.0.co
Autor:
Toru Fukasawa, Yoshihiko Konishi, Takeshi Oshima, Hiroaki Miyashita, Takashi Yanagi, Takayuki Nakanishi, Kazushi Nishizawa
Publikováno v:
2012 IEEE International Conference on Wireless Information Technology and Systems (ICWITS).
A circularly polarized cavity antenna that is fed by L-shaped elements has been presented. Wideband impedance matching has been achieved by using the vertical arm of the element as the impedance transformer, and hence, there is no need for other impe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8086619218c1d8f21826e9bbc81a5b7c
https://doi.org/10.1109/icwits.2012.6417754
https://doi.org/10.1109/icwits.2012.6417754
Autor:
Toru Fukasawa, Kazushi Nishizawa, Yoshihiko Konishi, Hiroaki Miyashita, Takashi Yanagi, Takeshi Oshima, Isamu Chiba
Publikováno v:
2011 IEEE International Symposium on Antennas and Propagation (APSURSI).
A circularly polarized cavity antenna that is fed by L-shaped probes is proposed in this paper. This antenna has a simple configuration and good connectivity with a feed circuit. Wideband impedance matching is achieved by using the vertical arm of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d5063d04d1e94338ce5c15a93b4864
https://doi.org/10.1109/aps.2011.5997160
https://doi.org/10.1109/aps.2011.5997160
Autor:
Isamu Chiba, Kazushi Nishizawa, Yoshihiko Konishi, Hiroaki Miyashita, Hideyuki Ohashi, Michio Takikawa
Publikováno v:
2011 IEEE International Symposium on Antennas and Propagation (APSURSI).
We propose a new type of support structure for helical antennas which are made of rolled cylindrical film resin substrate. The structure is composed of a rod arranged on the cylinder axis and disks fixed to it, which have a function that holds the cy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::652bd6e6ac74a0dcb696d4a80cbe0017
https://doi.org/10.1109/aps.2011.5997158
https://doi.org/10.1109/aps.2011.5997158