Bandwidth Enhancement of Aperture Feed by an Air Rectangular Cavity Backing in a LTCC Post-Wall Waveguide
スポンサーリンク
概要
- 論文の詳細を見る
The aperture feed with an air cavity in a LTCC (Low Temperature Co-fired Ceramics) post-wall waveguide with dielectric constant εr more than 5 is proposed for bandwidth enhancement in the millimeter wave band. A rectangular cavity is adopted because only one mask pattern of a rectangular can be used for each layer of LTCC for reducing the number of the design parameters and the cost. The fabrication limitation such as the spacing between the post edge and the aperture edge reduces the bandwidth. The feeding structures are designed at 61.25GHz for a range of εr from 2.0 to 9.0. In the case of εr =7.0, the bandwidth for reflection below -15 dB with the air cavity is 4.25 times that without the air cavity in simulation, and 3.10 times in measurement.
- （社）電子情報通信学会の論文
- 2009-01-01
著者
-
HIROKAWA Jiro
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
-
ANDO Makoto
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
-
HIROKAWA Jiro
Tokyo Institute of Technology
-
ANDO Makoto
Tokyo Institute of Technology
-
Hirokawa Jiro
Department Of Electrical & Electronic Engineering Faculty Of Engineering Tokyo Institute Of Tech
-
LEE JungAun
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
-
Ando Makoto
Department Of Electrical & Electronic Engineering Tokyo Institute Of Technology
-
Ando Makoto
Department Of Cardiovascular Surgery The Sakakibara Heart Institute
-
Lee Jungaun
Department Of Electrical And Electronic Engineering Tokyo Institute Of Technology
-
Ando Makoto
Department Of Cardiovascular Surgery Sakakibara Heart Institute
-
Ando Makoto
Department Of Applied Physics Faculty Of Engineering Tokyo University Of Agriculture And Technology
関連論文
- A Post-Wall Center-Feed Waveguide Circuit Consisting of T-Junctions for Reducing the Slot-Free Area in a Parallel Plate Slot Array Antenna
- Broadband Design and Fabrication of Partially-Corporate Feed Double-Layer Waveguide Slot Antennas with Magnetic Wall Terminations due to Symmetrical Waveguide Connections
- A Coaxial Feeder with Two Pairs of Parasitic Pins for Realizing Rotationally Symmetric Aperture Illumination in Spiral Array Radial Line Slot Antennas
- Design of a Partially-Corporate Feed Double-Layer Slotted Waveguide Array Antenna in 39GHz Band and Fabrication by Diffusion Bonding of Laminated Thin Metal Plates
- A Coaxial Line to Post-Wall Waveguide Transition for a Cost-Effective Transformer between a RF-Device and a Planar Slot-Array Antenna in 60-GHz Band(Antennas and Propagation)
- Single ventricle repair in children with Down's syndrome
- Arterial Switch Operation Using Aortic Homograft for Transposition of the Great Arteries with Pulmonary Regurgitation
- Mitral Valve Replacement in Children under 3 Years of Age
- Single-stage Repair of Complete Atrioventricular Septal Defect and Coarctation of the Aorta in Neonate
- B-1-59 Antenna Efficiency Estimation according to the Loss Evaluation of Post-Wall Waveguides in Millimeter-Wave Bands
- C-2-70 Prediction of Transmission Losses in Microstrip Lines and Post-wall Waveguides in Various Frequency Bands by using Effective Conductivity and Complex Permittivity obtained by a Whispering Gallery Mode Resonator Technique
- C-2-44 CONFORMATION OF EFFECTIVE CONDUCTIVITY MEASURED BY A WHISPERING GALLERY MODE RESONATOR IN THE MILLIMETER-WAVE BAND BY MICROSTRIP-LINE TRANSMISSION LOSSES EVALUATION
- End-to-side Anastomosis for Coarctation of the Aorta and Type A Aortic Arch Interruption with Hypoplastic Aortic Arch
- Ross Procedure in an Infant Weighing 4.5kg : Eight years Follow-up
- Mitral Valve Replacement for Children with a Small Annulus Using ATS Open Pivot Prosthesis
- -0857- CHARACTERISTICS OF THE INITIATING BEATS OF NONSUSTAINED VENTRICULAR TACHYCARDIAS : COMPARISON WITH ISOLATED VENTRICULAR PREMATURE CONTRACTIONS(PROCEEDINGS OF THE 59th ANNUAL SCIENTIFIC MEETING OF THE JAPANESE CIRCULATION SOCIETY)
- A Lightweight Radial Line Slot Antenna with Honeycomb Structure for Space Use
- Fabrication of Alternating-Phase Fed Single-Layer Slotted Waveguide Arrays Using Plastic Materials with Metal-Plating
- A Three-Way Divider for Partially-Corporate Feed in an Alternating Phase-Fed Single-Layer Slotted Waveguide Array(Antennas and Propagation)
- Analysis of a Waveguide with a Round-Ended Wide Straight Slot by the Method of Moments Using Numerical-Eigenmode Basis Functions(Antenna and Propagation)
- PJ-304 Short-term Vagal Nerve Stimulation protects myocardium from ischemia-reperfusion (I/R) injury(PJ051,Autonomic Nervous System (H),Poster Session (Japanese),The 73rd Annual Scientific Meeting of The Japanese Circulation Society)
- Evaluation of Effective Conductivity of Copper-Clad Dielectric Laminate Substrates in Millimeter-Wave Bands Using Whispering Gallery Mode Resonators
- Design of Radial Line Slot Antennas at 8.3 GHz for Large Area Uniform Plasma Generation
- Design of 1m^2 Order Plasma Excitation Single-Layer Slotted Waveguide Array with Conducting Baffles and Quartz Glass Strips Using the GSM-MoM Analysis(Antennas and Propagation)
- A Single-Layer Linear-to-Circular Polarization Converter for a Narrow-Wall Slotted Waveguide Array
- Autologous Tissue-Fragmented Extracardiac Conduit With Rapid,Stable Endothelialization due to Angiogenesis
- Near-Field Distribution of Radial Line Slot Antenna for Surface-Wave-Coupled Plasma Generation
- Production of Large-Diameter Uniform Plasma in mTorr Range Using Microwave Discharge
- B-1-57 Design of Sequentially Rotated Circularly Polarized 2x2 Patch Antenna Arrays for Monopulse Operation
- Pattern Analysis of a GPS Microstrip Antenna on a Rectangular Ground Plane by Using Modified Edge Representation
- B-1-167 Limitation of a Solid-Wall Waveguide Approximation in the Design of a Post-Wall Waveguide Linear Array
- A Design of a Leaky Waveguide Crossed-Slot Linear Array with a Matching Element by the Method of Moments with Numerical-Eigenmode Basis Functions(Antennas and Propagation)
- Simple Analysis of a Slot and a Reflection-Canceling Post in a Rectangular Waveguide Using only the Axial Uniform Currents on the Post Surface(Antenna and Propagation)
- OE-183 A New Drug Delivery System Using Fibronectin-VEGF Fusion is More Effective and Harmless than VEGF Alone for the Therapeutic Neovascularization(Growth factor/Cytokine(01)(H),Oral Presentation(English),The 72nd Annual Scientific Meeting of the Japane
- Grating Lobes Suppression in Transverse Slot Linear Array with a Dual Parasitic Beam of Strip Dipoles(2004 International Symposium on Antennas and Propagation)
- A Waveguide Broad-Wall Transverse Slot Linear Array with Reflection-Canceling Inductive Posts and Grating-Lobe Suppressing Parasitic Dipoles(Antenna Design, Wireless Technologies and Computational Electromagnetics)
- Mechanical Phase Shifting in the Power Divider for Single-Layer Slotted Waveguide Arrays(Antenna and Propagation)
- Development of Planar Antennas
- A Full-Wave Analysis of a Complete Model for a Radial Line Slot Antenna
- A Study of Aspect Ratio of the Aperture and the Effect on Antenna Efficiency in Oversized Rectangular Slotted Waveguide Arrays(Antenna and Propagation)
- A Post-Wall Center-Feed Waveguide Circuit Consisting of T-Junctions for Reducing the Slot-Free Area in a Parallel Plate Slot Array Antenna
- Connected Post-Wall (C-PW) Waveguide for Efficient Design of Broad Wall Slots by Using Equivalent Solid-Wall Waveguide
- Design of Post-Wall Feed Waveguide for a Parallel Plate Slot Array by an Analysis Model with Corrected Solid-Walls
- Design of Narrow Wall Windows in a Waveguide to Feed Partially-Dielectric-Filled Oversized-Rectangular Waveguide Based on 2-Dimensional Analysis of Two Orthogonal Directions
- Analysis and Design of a Reflection-Cancelling Transverse Slot-Pair Array with Grating-Lobe Suppressing Baffles
- Analysis and Uniform Design of a Single-Layer Slotted Waveguide Array Antenna with Baffles
- Bandwidth Enhancement of Aperture Feed by an Air Rectangular Cavity Backing in a LTCC Post-Wall Waveguide
- Step Width Tolerable for Offset of the Aperture in a Millimeter-Wave Transducer between Post-Wall and Hollow Standard Waveguides
- B-1-154 Power Divider for Feed of Oversized Dielectric-Coated Rectangular Waveguide
- The Ridged Cross-Junction Multiple-Way Power Divider for Small Blockage and Symmetrical Slot Arrangement in the Center Feed Single-Layer Slotted Waveguide Array
- Analysis of Radial Line Slot Antenna with Dielectric Layers over the Aperture, Vol.J86-B,No.3, pp.511-518
- B-1-69 Design of a Circularly Polarized Patch Antenna on the Thick Resin of a Silicon Chip
- Reflection Characteristics of Center-Feed Single-Layer Waveguide Arrays(2004 International Symposium on Antennas and Propagation)
- A Cost-Effective Transition between a Microstrip Line and a Post-Wall Waveguide Using a Laminated LTCC Substrate in 60-GHz Band(Microwaves, Millimeter-Waves)
- Moment Method Analysis of a Plane Wave Generator in an Oversized Rectangular Waveguide(Antennas and Propagation)
- B-1-83 Partially-dielectric-filled Single Layer Feed-waveguide for Excitation of the Dominant Quasi TEM-wave in Oversized-rectangular Waveguide
- B-1-54 Full Array Optimization of a Linear, Edge Slot Array with Low Sidelobes
- Feed through an Aperture to a Post-Wall Waveguide with Step Structure(Antennas and Propagation)
- A Transformer between a Thin Post-Wall Waveguide and a Standard Metal Waveguide via a Dielectric Substrate Insertion with Slits Etched on It(Antenna and Propagation)
- A Radial Line Slot Antenna Fed by a Rectangular Waveguide through a Crossed Slot(Antenna and Propagation)
- Bilateral pulmonary artery banding for hypoplastic left heart syndrome and related anomalies
- B-1-72 120GHz-band Design of a Corporate-feed Plate-laminated Waveguide Slot Array Antenna
- B-1-73 LTCC Partially-Filled Oversized Rectangular Waveguide-Fed Slot Array in the Millimeter-Wave Band
- B-1-57 Radial Line Slot Antenna with an Elliptical Beam
- A Coaxial Feeder with Two Pairs of Parasitic Pins for Realizing Rotationally Symmetric Aperture Illumination in Spiral Array Radial Line Slot Antennas
- Practical Slot Array Design by Method of Moments Using One Basis Function and Constant Correction Length
- A Center-Feed Linear Array of Reflection-Canceling Slot Pairs on Post-Wall Waveguide
- Loss of Post-Wall Waveguides and Efficiency Estimation of Parallel-Plate Slot Arrays Fed by the Post-Wall Waveguide in the Millimeter-Wave Band
- A Single-Layer Hollow-Waveguide 8-Way Butler Matrix(Microwaves, Millimeter-Waves)
- A Half-Sized Post-Wall Short-Slot Directional Coupler with Hollow Rectangular Holes in a Dielectric Substrate(Passive Circuits, Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Pe
- A Post-Wall Waveguide Slot Array with a Three-Way Power Divider on a Single-Layer Dielectric Substrate(Antennas and Propagation)
- A Beam Switching Slot Array with a 4-Way Butler Matrix Installed in Single Layer Post-Wall Waveguides (Antenna and Propagation)
- Full-Wave Design Considering Slot Admittance in 2-D Waveguide Slot Arrays with Perfect Input Matching
- Design of a Partially-Corporate Feed Double-Layer Slotted Waveguide Array Antenna in 39GHz Band and Fabrication by Diffusion Bonding of Laminated Thin Metal Plates
- An Alternating-Phase Fed Single-Layer Slotted Waveguide Array in 76 GHz Band and Its Sidelobe Suppression(Recent Devices, Circuits, and Systems for Millimeter-wave ITS Applications)
- B-1-150 Transmission Loss of the LTCC Partially-Filled Single Mode Waveguide in the Millimeter-Wave Band
- B-1-44 Effect of Localized Rain on Rain Attenuation in Tokyo Tech Millimeter-wave Model Network
- Special Section on Recent Progress in Electromagnetic Theory and Its Application
- Direct and Analytical Derivation of the Vectorial Geometrical Optics from the Modified Edge Representation Line Integrals for the Physical Optics(EM Analysis, Wireless Technologies and Computational Electromagnetics)
- B-1-146 Design and Fabrication of Double-Layer Waveguide Slot Array Antennas using Diffusion Bonding of Laminated Thin Plate for 350 GHz-band
- B-1-152 Numerical Optimization for Flat Elliptical Beam Radial Line Slot Antenna
- Design and Measurement of a Corporate-feed Plate-laminated Waveguide Slot Array Antenna for 120 GHz-band
- Large-Size Local-Domain Basis Functions with Phase Detour and Fresnel Zone Threshold for Sparse Reaction Matrix in the Method of Moments(EM Analysis, Wireless Technologies and Computational Electromagnetics)
- Eigenmode Analysis of Propagation Constant for a Microstrip Line with Dummy Fills on a Si CMOS Substrate
- Loss Reduction by Air-Region Insertion to LTCC Rectangular-Waveguide Slot Array Antenna in the Millimeter-Wave Band (放送技術)
- B-1-71 Design of Dual-polarization Corporate-feed Waveguide Slot Array Antenna using Diffusion Bonding of Laminated Thin Plate for 60 GHz-band
- B-1-70 Loss Evaluation and Bandwidth Enhancement of LTCC Single-mode Waveguide Slot Array with Air Region in the Millimeter-Wave Band
- B-1-66 Study of Cylindrical wave propagation in Honeycomb for use in mm-wave RLSA
- A High-Efficiency Circularly-Polarized Aperture Array Antenna with a Corporate-Feed Circuit in the 60GHz Band
- Loss Reduction by Air-Region Insertion to LTCC Rectangular-Waveguide Slot Array Antenna in the Millimeter-Wave Band (アンテナ・伝播)
- LTCC Partially-Filled Post-Wall Rectangular-Waveguide Slot Array Antenna in the Millimeter-Wave Band
- Comparison of total fields calculated by Physical Optics surface integration and line integration of Equivalent Edge Currents using Modified Edge Representation with SGO correction for reflection components
- Design and Measurement of the Plate Laminated Waveguide Slot Array Antenna and Its Feasibility for Wireless Link System in the 120GHz Band
- Hybrid Analysis of Radar Cross Section of Open-Ended Cavity Scatterers by Using Modified Physical Optics and Iterative Physical Optics
- Double-Layer Plate-Laminated Waveguide Slot Array Antennas for a 39GHz Band Fixed Wireless Access System
- An Equivalent Double Layer Model for a Fast Design and Analysis of High Gain-Multilayer Radial Line Slot Antennas
- Manufacture and Performance of a 60GHz-Band High-Efficiency Antenna with a Thick Resin Layer and the Feed through a Hole in a Silicon Chip
- B-1-13 Spatial Variability of Rain Attenuation in Tokyo Tech Millimeter-wave Model Network
- Circularly Polarized Post-wall Waveguide Slotted Arrays
- B-1-32 Spatial-temporal Characteristics of Rain Attenuation in Tokyo Tech Millimeter-wave Model Network