Manabu Yamamoto

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Name
Manabu Yamamoto
Affiliation
Hokkaido University
Section
Graduate School of Information Science and Technology Division of Media and Network Technologies
Research funding number
20301939

Research Areas

 
 

Published Papers

 
Fundamentals and Practice of Printed Antennas
Manabu Yamamoto
J97-B(9) 714-730   Sep 2014   [Refereed][Invited]
Takehito Munekata, Manabu Yamamoto, and Toshio Nojima
Proc. of 2014 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition   80-81   Aug 2014   [Refereed]
Manabu Yamamoto, Soh Fujita, Jun Kimura and Toshio Nojima
Proceedings of 2013 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications   448-451   Sep 2013   [Refereed][Invited]
A Study of a Leaf-Shaped Bowtie Slot Antenna for UWB Applications
Soh Fujita, Manabu Yamamoto, and Toshio Nojima
Proc. of 2012 International Symposium on Antennas and Propagation   (3B3-1) 830-833   Nov 2012   [Refereed]
電子情報通信学会論文誌. B, 通信   95(9) 1181-1184   Sep 2012   [Refereed]
Quasi-Millimeter Wave Leaf-Shaped Bowtie Array Antenna Backed by an EBG Substrate
Manabu Yamamoto
Proc. of 2012 IEEE International Symposium on Antennas and Propagation   (258.4)    Jul 2012   [Refereed]
電子情報通信学会技術研究報告 : 信学技報   112(149) 7-12   Jul 2012
YAMAMOTO Manabu, KOYANAGI Tomoyuki, Fujita So, NOJIMA Toshio
Proceedings of the IEICE General Conference   2012(1)    Mar 2012
FUJITA So, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   111(343) 29-34   Dec 2011
As a planar-type wideband antenna being useful for UWB radio systems, the authors have previously proposed a wideband dipole antenna being composed of leaf-shaped bowtie radiating elements. In this report, a leaf-shaped bowtie slot antenna, which ...
KOYANAGI Tomoyuki, YAMAMOTO Manabu, NOJIMA Toshio
The transactions of the Institute of Electronics, Information and Communication Engineers. B   94(9) 1133-1145   Sep 2011   [Refereed]
KOYANAGI Tomoyuki, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2011(1)    Aug 2011
Leaf-Shaped Bowtie Antenna Backed by a Periodic Patch-Loaded Grounded Slab
Manabu Yamamoto, Tomoyuki Koyanagi and Toshio Nojima
Proc. of 2011 IEEE International Symposium on Antennas and Propagation   (205.5)    Jul 2011   [Refereed]
KOYANAGI Tomoyuki, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2011(1)    Feb 2011
A Study of a Leaf-Shaped Bowtie Antenna Backed by an Electromagnetic Band Gap Structure
Tomoyuki Koyanagi, Manabu Yamamoto and Toshio Nojima
Proc. of 2010 International Symposium on Antennas and Propagation   (114)    Nov 2010   [Refereed]
MATSUSHIMA Toshikazu, YAMAMOTO Manabu, NOJIMA Toshio
The transactions of the Institute of Electronics, Information and Communication Engineers. B   93(9) 1283-1287   Sep 2010   [Refereed]
TOKUYAMA Daisuke, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2010(1)    Aug 2010
Manabu Yamamoto, Daisuke Tokuyama and Toshio Nojima
Proc. of. 2010 IEEE International Symposium on Antennas and Propagation   (529.5)    Jul 2010   [Refereed]
KOYANAGI Tomoyuki, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   110(135) 143-148   Jul 2010
As an planar-type wideband antenna being useful for UWB radio, the authors have previously proposed a leaf-shaped bowtie antenna. It have been also demonstrated by the authors that unidirectional radiation characteristics can be achieved over a wi...
TOKUYAMA Daisuke, MATSUSHIMA Toshikazu, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2010(1) "S-2"   Mar 2010
Ultra-Wideband Leaf-Shaped Bowtie Antenna with Band-Rejected Characteristics
Toshikazu Matsushima, Manabu Yamamoto and Toshio Nojima
Proc. of 2009 International Symposium on Antennas and Propagation   959-962   Oct 2009   [Refereed]
KIMURA Kouichirou, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2009(1)    Sep 2009
MATSUSHIMA Toshikazu, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   109(117) 1-6   Jul 2009
The authors have previously proposed a planar-type UWB antenna consisting of leaf-shaped bowtie radiating elements and a tapered microstrip line. Over the frequency band allocated for UWB radio systems, there are existing bands used by wireless lo...
MATSUSHIMA Toshikazu, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2009(1)    Mar 2009
Unbalanced Fed Dipole Antenna Mounted on Ground Plane with L-shaped Parasitic Elements for Mobile Handsets
Youhei Okada, Manabu Yamamoto, Toshio Nojima
Proc. of 2008 International Symposium on Antennas and Propagation   1523-1526   Oct 2008   [Refereed]
A Study on Unidirectional UWB Array Antenna Composed of Leaf-Shaped Bowtie Elements
Manabu Yamamoto
The 10th International Joint Symposium between Hokkaido University and Chungnam National University   91-99   Oct 2008
ITO Yoshinori, AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio
The transactions of the Institute of Electronics, Information and Communication Engineers. B   91(9) 1029-1036   Sep 2008   [Refereed]
OKADA Youhei, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2008(1)    Sep 2008
MATSUSHIMA Toshikazu, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   108(148) 75-80   Jul 2008
In this report, a miniaturization technique based on the use of high-permittivity dielectric substrates is applied to a leaf-shaped bowtie antenna for UWB communications. By employing an antenna substrate with a high relative permittivity of 10.2,...
YAMAMOTO Manabu, MATSUSHIMA Toshikazu, AMEYA Michitaka, NOJIMA Toshio
Proceedings of the IEICE General Conference   2008(1)    Mar 2008
OKADA Youhei, AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2008(1)    Mar 2008
AMEYA Michitaka, ITO Yoshinori, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2008(1)    Mar 2008
Yoshinori Ito, Michitaka Ameya, Manabu Yamamoto and Toshio Nojima
IET Electornics Letters   44(1) 9-11   Jan 2008   [Refereed]
YAMAMOTO Manabu, SAITO Yuta, NOJIMA Toshio
The transactions of the Institute of Electronics, Information and Communication Engineers. C   90(12) 951-955   Dec 2007   [Refereed]
Michitaka Ameya, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
IEICE Transactions on Communications   E90-B(9) 2230-2238   Sep 2007   [Refereed]
Experimental Study on 2-Element UWB Array Antenna Using Leaf-Shaped Bowtie Element
Michitaka Ameya, Yoshinori Ito, Manabu Yamamoto
Proc. of 2007 International Symposium on Antennas and Propagation   (2A4-1)    Aug 2007   [Refereed]
OKADA Youhei, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2007(1)    Aug 2007
AMEYA Michitaka, ITO Yoshinori, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2007(1)    Aug 2007
AMEYA Michitaka, ITO Yoshinori, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   107(144) 1-5   Jul 2007
We have previously proposed a unidirectional leaf-shaped bowie antenna for UWB application and investigated the characteristics of the antenna. In Japan, the available frequency bandwidth for UWB systems are narrower than that approved by FCC. In ...
ITO Yoshinori, AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   107(144) 7-12   Jul 2007
We have previously proposed a unidirectional leaf-shaped bowie antenna for UWB application and investigated the characteristics of the antenna. In this paper, we discuss the two-dimensional array of leaf-shaped bowtie antenna with flat reflector f...
2-Element UWB Array Antenna Using Leaf-Shaped Bowtie Element
Michitaka Ameya, Yoshinori Ito, Manabu Yamamoto, Toshio Nojima,
(208.2)    Jun 2007   [Refereed]
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2007(1)    Mar 2007
ITO Yoshinori, AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2007(1)    Mar 2007
SAITO Yuta, YAMAMOTO Manabu, NOJIMA Toshio
IEICE technical report. Antennas and propagation   106(416) 59-62   Dec 2006
In this report, we evaluate characteristics of the mobile handset dipole antenna with unbalanced feed in the vicinity of human phantom model by performing FDTD analysis. Based on the results obtained by the analysis, the influence of the slits cut...
ISHIGAKI Takahiro, YAMAMOTO Manabu, NOJIMA Toshio, ITO Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. B   89(9) 1688-1695   Sep 2006   [Refereed]
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITO Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. B   89(9) 1820-1823   Sep 2006   [Refereed]
SAITO Yuta, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the Society Conference of IEICE   2006(1)    Sep 2006
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the Society Conference of IEICE   2006(1) "S-9"-"S-10"   Sep 2006
An Omnidirectional UWB Printed Dipole Antenna with Small Waveform Distortion
ichitaka Ameya, Manabu Yamamoto, Toshio Nojima
Proc. of Progress In Electromagnetics Research Symposium 2006   (4P3) 515   Aug 2006   [Refereed]
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   106(140) 31-36   Jun 2006
We have proposed a UWB printed dipole antenna using self-complementary radiating elements. When the antenna is attached to walls or metal surfaces, the characteristics of the antenna can deteriorate because it has omnidirectional radiation pattern...
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the IEICE General Conference   2006(1)    Mar 2006
SAITO Yuta, YAMAMOTO Manabu, NOJIMA Toshio
Proceedings of the IEICE General Conference   2006(1)    Mar 2006
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   105(561) 89-92   Jan 2006
In impulse-based UWB communications, if coherent detection is used as the demodulation scheme, wave distortions of transmitted and received pulses caused by antennas induce degradations of the communication performance. In order to avoid these eff...
Ally Yahaya Simba, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
IEE Proceedings Microwaves, Antennas and Propagation   152(5) 331-336   Oct 2005   [Refereed]
Ally Yahaya Simba, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
IEE Proceedings Microwaves, Antennas and Propagation   152(5) 347-353   Oct 2005   [Refereed]
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITO Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. B   88(9) 1662-1673   Sep 2005   [Refereed]
ISHIGAKI Takahiro, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the Society Conference of IEICE   2005(1)    Sep 2005
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITO Kiyohiko
Proceedings of the Society Conference of IEICE   2005(1)    Sep 2005
Broadband Printed Dipole Antenna Consisting of Self-Complementary Radiating Element and Tapered Microstrip Line
Michitaka Ameya, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
Proc. of 2005 International Symposium on Antennas and Propagation   1(WB3-6) 137-140   Aug 2005   [Refereed]
Circularly Polarized Proximity-Fed Microstrip Antenna with Switchable Polarization Ability
Ally Yahaya Simba, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
Proc. of 2005 International Symposium on Antennas and Propagation   3(FA4-3) 985-988   Aug 2005   [Refereed]
45-Degrees Linearly Polarized Array Antenna Consisting of Printed Slots Arranged in Both Sides of Microstrip Line
Takahiro Ishigaki, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
Proc. of 2005 International Symposium on Antennas and Propagation   3(FA4-6) 993-996   Aug 2005   [Refereed]
SIMBA Ally Yahaya, YAMAMOTO Manabu, Nojima Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   105(188) 15-20   Jul 2005
This paper presents a design of circularly polarized proximity-fed microstrip antenna with switchable polarization sense. The designed antenna consists of a truncated-corners square patch, microstrip line feed extended beyond the patch edge, pin d...
A Study of Microstrip Dipole Antenna Having Ultra-Wideband Characteristics
Michitaka Ameya, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
2004 Korea-Japan Joint Conference Proceedings   (AP-3-11) 45-48   Nov 2004   [Refereed]
ISHIGAKI Takahiro, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   104(395) 37-42   Oct 2004
A 45-degree linearly polarized array antenna in which printed slots are arranged on both sides of a microstrip line is designed, and its characteristics are revealed. First, the coupling level between a microstrip line and a pair of slots arranged...
Image NRD Guide-Fed Dielectric Rod Antenna for Millimeter-Wave Applications
Ally Yahaya Simba, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
IEICE Transactions on Electronics   E87-C(9) 1405-1411   Sep 2004   [Refereed]
Polarization Switchable Microstrip Array Antenna Based on Proximity Feeding Technique
Manabu Yamamoto, Taisuke Tokunaga, Toshio Nojima and Kiyohiko Itoh
Proc. of 2004 International Symposium on Antennas and Propagation   1(2B4-3) 413-416   Aug 2004   [Refereed]
AMEYA Michitaka, YAMAMOTO Manabu, Nojima Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   104(203) 75-80   Jul 2004
Broadbanding techniques for microstrip dipole antennas are discussed in this report. Firstly, we propose a planar-type dipole antenna printed on a dielectric substrate. The antenna is composed of self-complementary radiating elements and a microst...
SIMBA Ally Yahaya, YAMAMOTO Manabu, Nojima Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   104(203) 81-86   Jul 2004
A circularly polarized proximity-fed microstrip antenna (CP-PMA) is presented, and its performance is evaluated in this report. The CP-PMA consists of a truncated-corners square patch coupled in close proximity to a microstrip line. Firstly, funda...
Ally Yahaya Simba, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
IEE Proceedings Microwaves, Antennas and Propagatio   151(5) 404-408   May 2004   [Refereed]
Hiraga Ken, Yamamoto Manabu, Nojima Toshio
Proceedings of the IEICE General Conference   2004(1)    Mar 2004
AMEYA Michitaka, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the IEICE General Conference   2004(1)    Mar 2004
YAMAMOTO Manabu, TOKUNAGA Taisuke, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the IEICE General Conference   2004(1)    Mar 2004
A Printed Slot Array Antenna Having 45-Degrees Linear Polarization
Manabu Yamamoto, Masahiko Katayama, Toshio Nojima, and Kiyohiko Itoh
2003 Asia-Pacific Microwave Conference   2(TD3) 1056-1059   Nov 2003   [Refereed]
Image NRD Guide-fed Dielectric Rod Antenna Array
Ally Yahaya Simba, Manabu Yamamoto, Toshio Nojima, and Kiyohiko Itoh
2003 Asia-Pacific Microwave Conference   3(FB4) 1608-1611   Nov 2003   [Refereed]
YAMAMOTO Manabu, KATAYAMA Masahiko, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the Society Conference of IEICE   2003(1)    Sep 2003
KATAYAMA Masahiko, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   103(230) 79-84   Jul 2003
A 45-degree linearly polarized slot array with microstrip line feed is developed. In order to simplify the feed system and to reduce the feeding line loss, series feeding is adopted to excite the radiating slots. First, the coupling level between ...
TOKUNAGA Taisuke, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   103(230) 91-96   Jul 2003
A Proximity fed Microstrip Antenna (PMA), in which a microstrip element is excited by a microstrip feed line via a narrow gap, is known to have advantages such that the polarization plane can be switched. In this report, a configuration of 2-eleme...
Novel Planar-Type Sectored Antenna Consisting of a Slot Yagi-Uda Array with Post-Wall Cavity
M. Yamamoto, N. Kobayashi, K. Itoh and T. Nojima
Proceedings of 2003 IEEE International Antennas and Propagation Symposium   (59.7)    Jun 2003   [Refereed]
YAMAMOTO Manabu, TOKUNAGA Taisuke, NOJIMA Toshio, ITOH Kiyohiko
Proceedings of the IEICE General Conference   2003(1)    Mar 2003
Taisuke Tokunaga, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
Electronics Letters   39(22) 1569-1570   2003   [Refereed]
Masahiko Katayama, Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
Electronics Letters   39(21) 1492-1493   2003   [Refereed]
Simba Ally Yahaya, Manabu Yamamoto, Kiyohiko Itoh and Toshio Nojima
Electronics Letters   39(15) 1099-1101   2003   [Refereed]
Dielectric Rod Antenna Based on Image NRD Guide
Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
2002 Asia-Pacific Microwave Conference Proceedings   2 1260-1263   Nov 2002   [Refereed]
Dielectric Rod Antenna fed by Image NRD Guide
Manabu Yamamoto, Toshio Nojima and Kiyohiko Itoh
Proceedings of the 2002 Interim International Symposium on Antennas and Propagation   125-128   Nov 2002   [Refereed]
Linear Array of Resonant-Type Leaky-Wave Antenna Based on Image NRD Guide
Simba Ally Yahaya, Manabu Yamamoto, Kiyohiko Itoh and Toshio Nojima
Proceedings of the 2002 Interim International Symposium on Antennas and Propagation   149-152   Nov 2002   [Refereed]
SAITO Hiroyuki, NISHIMURA Toshihiko, YAMAMOTO Manabu, ITOH Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. B   85(9) 1493-1500   Sep 2002   [Refereed]
KAWAMURA Teruo, YAMAMOTO Manabu, HIKAGE Takashi, ITOH Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. B   85(9) 1633-1643   Sep 2002   [Refereed]
KOBAYASHI Naoki, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   102(232) 13-18   Jul 2002
In broadband wireless communications such as WLANs, degradation of transmission quality due to the multipath propagation is a serious problem. A multi-sector antenna is useful to compensate the multipath interference, and have been studied in many...
NAITO Takashi, YAMAMOTO Manabu, NOJIMA Toshio, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   102(232) 19-24   Jul 2002
In broadband wireless communications such as WLANs, degradation of transmission quality due to the multipath propagation is a serious problem. A multi-sector antenna is useful to compensate the multipath interference. The authors have previously p...
YAMAMOTO Manabu, KOBAYASHI Naoki, ITOH Kiyohiko
Proceedings of the Society Conference of IEICE   2001(1)    Aug 2001
KAMIKAWA Tomohiko, YAMAMOTO Manabu, ITOH Kiyohiko
Proceedings of the Society Conference of IEICE   2001(1)    Aug 2001
SAITO Hiroyuki, NISHIMURA Toshihiko, YAMAMOTO Manabu, ITOH Kiyohiko
IEICE technical report. Antennas and propagation   101(231) 89-96   Jul 2001
The quasi-optical antenna mixer system transforms RF signal into intermediate frequency signal as soon as the system receives the RF signal and local oscillator's signal spatially. Using this system, we can reduce transmission loss, which causes s...
Yamamoto Manabu, Takai Ryoh, Itoh Kiyohiko
IEICE technical report. Antennas and propagation   101(231) 97-104   Jul 2001
In General, main beam direction of leaky-wave antennas is not broadside because of the traveling wave type source distribution. A resonant-type leaky wave antenna based on an Image NRD guide, which was previously proposed by the authors, poses a s...
L. C. Chirwa, K. Morimoto, M. Yamamoto, M. Omiya and K. Itoh
IEEE Trans. on Microwave Theory and Tech.   49(5) 995-997   May 2001   [Refereed]
YAMAMOTO Manabu, OSAKABE Taro, ITOH Kiyohiko
Proceedings of the IEICE General Conference   2001(1)    Mar 2001
YAMAMOTO Manabu, ISHIZAKI Kosuke, MURAMOTO Mitsuru, SASAKI Kanemi, ITOH Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. B   83(12) 1730-1738   Dec 2000   [Refereed]
Manabu Yamamoto and Kiyohiko Itoh
IEE Proceedings Microwaves, Antennas and Propagation   147(5) 385-389   Oct 2000   [Refereed]
YAMAMOTO Manabu, KAMIKAWA Tomohiko, ITOH Kiyohiko
Proceedings of the Society Conference of IEICE   2000(1)    Sep 2000
HATTORI Kazuya, YAMAMOTO Nanabu, ITOH Kiyohiko
The transactions of the Institute of Electronics, Information and Communication Engineers. C   83(9) 819-825   Sep 2000   [Refereed]
A Planar-Type Five-Sector Antenna with Printed Slot Array for Millimeter-Wave and Microwave Wireless LANs
Manabu Yamamoto, Kousuke Ishizaki, Mitsuru muramoto, Kanemi Sasaki and Kiyohiko Itoh
Proceedings of the 2000 International Symposium on Antennas and Propagation   1 205-208   Aug 2000   [Refereed]
Oasakabe Taro, Yamamoto Manabu, Itoh Kiyohiko
IEICE technical report. Antennas and propagation   100(217) 41-46   Jul 2000
In General, main beam direction of leaky-wave antennas is not broadside because of the traveling wave type source distribution. An Image NRD guide resonant-type leaky wave antenna, which was previously proposed by the authors, poses a standing wav...

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2007 - 2009    Investigator(s): Manabu YAMAMOTO
Ultra-wideband (UWB) radio systems have recently attracted considerable attention for wireless high-speed communication. The purpose of this study is to present fundamental techniques for the realization of basic components (antenna, filter and mi...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 1999 - 2002    Investigator(s): 伊藤 精彦, Manabu YAMAMOTO
Our research group obtained the following results that contribute greatly to the development of millimeter-wave wireless local area network systems.1. As a basic element of millimeter-wave planar-type sector antennas, a printed slot array with bac...