Toshio NOJIMA


Leaf-Shaped Bowtie Slot Antenna for UWB Applications
Manabu YAMAMOTO  So FUJITA  Toshio NOJIMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2012/09/01
Vol. J95-B  No. 9  pp. 1181-1184
Type of Manuscript: Special Section LETTER (Special Section on Antennas and Propagation Technologies for Progress in Wireless Systems)
Category: 
Keyword: 
leaf-shaped bowtie slot antennawideband antennaself complementary structureUWB radio systems
  Summary |  Full Text(in Japanese):PDF (604.7KB)

Leaf-Shaped Bowtie Antenna Backed by an Electromagnetic Bandgap Substrate
Tomoyuki KOYANAGI  Manabu YAMAMOTO  Toshio NOJIMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2011/09/01
Vol. J94-B  No. 9  pp. 1133-1145
Type of Manuscript: Special Section PAPER (Special Issue on Antenna and Propagation Technologies Underpinning Advances and Diversification of Wireless Communications)
Category: 
Keyword: 
leaf-shaped bowtie antennamushroom-like structureperiodical patch loaded conducting plane
  Summary |  Full Text(in Japanese):PDF (662.2KB)

Ultra-Wideband Leaf-Shaped Bowtie Antenna with Band-Rejected Characteristics
Toshikazu MATSUSHIMA  Manabu YAMAMOTO  Toshio NOJIMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2010/09/01
Vol. J93-B  No. 9  pp. 1283-1287
Type of Manuscript: Special Section PAPER (Special Issue on Antennas and Propagation Supporting Advanced Wireless System)
Category: 
Keyword: 
leaf-shaped bowtie antennaUWBband-rejection
  Summary |  Full Text(in Japanese):PDF (209.5KB)

Novel 5th-Order Intermodulation Distortion Compensation Based upon 2nd-Harmonics Injection (2nd-HI) and Its Application to Wide Dynamic Range Hybrid Predistortion for a 2-GHz Power Amplifier
Hiroshi MATSUBARA  Kazuhiro ISHIHARA  Norihisa MIYADAI  Toshio NOJIMA 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2008/12/01
Vol. J91-C  No. 12  pp. 711-718
Type of Manuscript: Special Section PAPER (Special Issue on Microwave Technologies Launched from Universities)
Category: 
Keyword: 
power amplifier5th-order distortion2nd-harmonics injectionpredistortion
  Summary |  Full Text(in Japanese):PDF (839.9KB)

A Study on Two-Dimensional Array Composed of Leaf-Shaped Bowtie Antenna with Flat Reflector for UWB Application
Yoshinori ITO  Michitaka AMEYA  Manabu YAMAMOTO  Toshio NOJIMA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2008/09/01
Vol. J91-B  No. 9  pp. 1029-1036
Type of Manuscript: Special Section PAPER (Special Issue on Emerging Technologies of Antennas and Propagation Supporting High-speed Wireless Communications)
Category: 
Keyword: 
leaf-shaped bowtie antennatwo-dimensional arrayUWBwave-distortioncross-correlation
  Summary |  Full Text(in Japanese):PDF (915.3KB)

Performance of Unbalanced-Feed Dipole Antenna Arranged on a Slotted Ground Plane
Manabu YAMAMOTO  Yuta SAITO  Toshio NOJIMA 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2007/12/01
Vol. J90-C  No. 12  pp. 951-955
Type of Manuscript: Special Section PAPER (Special Issue on Microwave Technologies Launched from Universities)
Category: 
Keyword: 
dipole antennaunbalanced-feedhuman phantomradiation efficiencyFDTD analysis
  Summary |  Full Text(in Japanese):PDF (499.4KB)

Estimation Method for Electromagnetic Fields in Echoic Environments Using Large Scale FDTD Analysis and Histogram Representation
Yusuke ABIKO  Louis-Ray HARRIS  Takashi HIKAGE  Toshio NOJIMA  Soichi WATANABE  Takashi SHINOZUKA 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2007/11/01
Vol. J90-B  No. 11  pp. 1097-1105
Type of Manuscript: Special Section PAPER (Special Section on Broadband EMC Technologies)
Category: 
Keyword: 
electromagnetic fields in echoic environmentlarge-scale parallel computationfinite difference time domain (FDTD) techniquehistogrampacemaker EMI
  Summary |  Full Text(in Japanese):PDF (1.6MB)

Improvement of Radiation Characteristics of Self-Complementary UWB Printed Dipole Antenna
Michitaka AMEYA  Manabu YAMAMOTO  Toshio NOJIMA  Kiyohiko ITO 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2006/09/01
Vol. J89-B  No. 9  pp. 1820-1823
Type of Manuscript: Special Section LETTER (Special Issue on Design, Analysis and Measurement Techniques in Antennas and Propagation to Meet Expanding Applications of Radio Systems)
Category: 
Keyword: 
printed dipole antennaUWBself-complementarywaveform distortion
  Summary |  Full Text(in Japanese):PDF (640.6KB)

45-Degrees Linearly Polarized Printed Slot Array Antenna in which Radiating Elements are Arranged on Both Sides of Feedline
Takahiro ISHIGAKI  Manabu YAMAMOTO  Toshio NOJIMA  Kiyohiko ITO 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2006/09/01
Vol. J89-B  No. 9  pp. 1688-1695
Type of Manuscript: Special Section PAPER (Special Issue on Design, Analysis and Measurement Techniques in Antennas and Propagation to Meet Expanding Applications of Radio Systems)
Category: 
Keyword: 
printed slotarray antenna45-degrees linear polarizationmicrostrip line
  Summary |  Full Text(in Japanese):PDF (1.6MB)

Basic Circuit Construction of Microwave Superconducting Reaction Type Transmitting Filter Using Novel Split Open-Ring Resonator
Shunichi FUTATSUMORI  Takashi HIKAGE  Toshio NOJIMA 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2006/05/01
Vol. J89-C  No. 5  pp. 266-273
Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter Wave Planar Circuit and Related Technology)
Category: 
Keyword: 
reaction type filterHigh-Temperature Superconductorpower handling capabilitysplit open-ring resonator
  Summary |  Full Text(in Japanese):PDF (716.5KB)