Search Results - "Nishino, Tamotsu"
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1
Experiments on wireless power transfer with metamaterials
Published in Applied physics letters (20-06-2011)“…In this letter, we propose the use of metamaterials to enhance the evanescent wave coupling and improve the transfer efficiency of a wireless power transfer…”
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Journal Article -
2
Evolutionary generation of microwave line-segment circuits by genetic algorithms
Published in IEEE transactions on microwave theory and techniques (01-09-2002)“…Evolutionary generation of microwave line-segment circuits is presented in this paper. Topology and dimensions of line-segment circuits are expressed by sets…”
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Journal Article -
3
Evolutionary generation of 3-D line-segment circuits with a broadside-coupled multiconductor transmission-line model
Published in IEEE transactions on microwave theory and techniques (01-10-2003)“…Evolutionary generation of three-dimensional microwave line-segment circuits embedded in a multilayer structure is presented. Connections of the line segments…”
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Journal Article -
4
Development of phased array systems in Japan
Published in TENCON 2010 - 2010 IEEE Region 10 Conference (01-11-2010)“…This paper reviews the research and development on the phased array antennas (PAAs) for several applications in Japan. First, the author shows the historical…”
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Conference Proceeding
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5
An S-band 100W GaN Protection Switch
Published in 2007 IEEE/MTT-S International Microwave Symposium (01-06-2007)“…A high-power protection GaN FET switch has been developed. Our invented switching circuit utilizes a new asymmetric series-shunt/shunt configuration. By using…”
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Conference Proceeding -
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A Hollow-GCPW (HGCPW) as Low-Loss and Wafer-Conductivity-Free Structure on a Single Silicon Wafer
Published in 2003 33rd European Microwave Conference (01-10-2003)“…A low-loss hollow grounded co-planar Waveguide (HGCPW) suitable for a transmission line on a low-resistivity silicon wafer is presented. The HGCPW is disposed…”
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Conference Proceeding -
7
Tunable MEMS hybrid coupler and L-band tunable filter
Published in 2009 IEEE MTT-S International Microwave Symposium Digest (01-06-2009)“…Simultaneous control of frequency and coupling coefficient of a directional coupler provides a wide band tunable hybrid coupler. This hybrid coupler is…”
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Conference Proceeding -
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A grounded coplanar waveguide with a metallized silicon cavity fabricated by front-surface-only processes
Published in Sensors and actuators. A. Physical. (01-03-2004)“…This paper presents a grounded coplanar waveguide (GCPW), which is useful in RF-MEMS devices in order to effectively reduce noise from neighboring transmission…”
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Journal Article -
9
Evolutionary generation of microwave line-segment circuits by genetic algorithms
Published 01-01-2002“…Evolutionary generation of microwave line-segment circuits is presented. Topology and dimensions of line-segment circuits are expressed by sets of parameters,…”
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Dissertation -
10
Simple design formula for parallel plate mode suppression by ground via-holes
Published in 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) (2004)“…In a multi-layered RF circuit, it is important to avoid unexpected coupling caused by a parallel plate mode excited between different ground layers. Ground…”
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Conference Proceeding -
11
A Millimeter-Wave Low-Loss and High-Power Switch MMIC using Multiple FET Resonators
Published in 2006 IEEE MTT-S International Microwave Symposium Digest (01-06-2006)“…A millimeter-wave low-loss and high-power terminated switch MMIC is developed. Our invented switch is designed based on a non-linear relationship between the…”
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Conference Proceeding -
12
Wireless power transmission efficiency enhancement with metamaterials
Published in 2010 IEEE International Conference on Wireless Information Technology and Systems (01-08-2010)“…In this paper, a wireless power transfer system with magnetically coupled resonators is studied. The idea to use metamaterials to enhance the coupling…”
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Conference Proceeding -
13
Progress of phased array systems in Japan
Published in 2010 IEEE International Symposium on Phased Array Systems and Technology (01-10-2010)“…This paper reviews the research and development on the phased array antennas (PAAs) for several applications in Japan. First, the author shows the historical…”
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Conference Proceeding -
14
A displacement-error monitor of a multi-layer LTCC module
Published in 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) (2004)“…A displacement error of each sheet of a multi-layer low temperature co-fired ceramic (LTCC) module is one of the critical issues to obtain high yield…”
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Conference Proceeding -
15
Design of inclined and displaced slotted waveguide array antennas with low sidelobe radiation patterns
Published in Proceedings of the Fourth European Conference on Antennas and Propagation (01-04-2010)“…In this paper, we develop a design method for inclined and displaced (compound) slotted waveguide array antennas. The characteristics of a compound slot…”
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Conference Proceeding -
16
Modern plastic millimeter-wave array antennas
Published in 2010 IEEE International Conference on Wireless Information Technology and Systems (01-08-2010)“…This paper presents two types of millimeter-wave waveguide-type array antennas using low-loss engineering plastics not only to reduce cost but also to obtain…”
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Conference Proceeding -
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Simplified phase-control technique for interference suppressions in phased array antennas
Published in 2010 IEEE International Symposium on Phased Array Systems and Technology (01-10-2010)“…A simplified phase control technique to suppress the interference for the specified direction is proposed in phased array antennas. In this technique, phase…”
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Conference Proceeding -
18
Integrated even harmonic type direct conversion receiver for W-CDMA mobile terminals
Published in 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278) (2002)“…This paper is the first demonstration of the overall performance of the integrated even harmonic type direct conversion receiver (EH-DCR) with the RAKE…”
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Conference Proceeding Journal Article -
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Suppression of multi-path couplings in MCM with a flip-chipped SiGe-MMIC
Published in 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278) (2002)“…Techniques to obtain a high isolation property in a multi-chip module (MCM) between pads of a SiGe-MMIC flip-chipped on a low temperature co-fired ceramic…”
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Conference Proceeding Journal Article -
20
Post-wall slotted waveguide array antennas for a broadband communication system in 60GHz
Published in Proceedings of the Fourth European Conference on Antennas and Propagation (01-04-2010)“…This paper proposes the beam-switching antennas developed for a access point (AP) of a broadband communication system in 60GHz band. The AP is composed of…”
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Conference Proceeding