Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for optimizing a dielectric circuit board material for increasing the degree of freedom in the design of an RF circuit and improving performance in a single-port resonance line. SOLUTION: A printed circuit for processing a radio frequency signal includes a substrate. The substrate is a meta material and includes at least one dielectric layer 100. The dielectric layer 100 has first and second dielectric characteristics in first and second regions 112 and 114, respectively. The permittivity and/or permeability of the second dielectric characteristics differ from those of the first dielectric characteristics. The printed circuit includes the resonance line 102 of the single port and a ground surface 116 connected to the substrate. The electric characteristics perform control so that the dimensions of the resonance line 102 are adjusted. The dielectric characteristics perform control further so that the impedance, the degree of sharpness, and/or capacitance of the resonance line 102 are adjusted. The resonance characteristics of the resonance line 102 are distributed via the substrate. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for optimizing a dielectric circuit substrate material to increase the degree of freedom in design of an RF (radio frequency) circuit and for improving the characteristics of an RF filter. SOLUTION: This RF filter includes a substrate having a plurality of regions, and each has respective substrate properties of a relative permeability and a relative permittivity. At least one filter portion is connected to a substrate region having different substrate properties in comparison to the other regions of the substrate. The other filter portions can be connected to the other substrate regions having different substrate properties. The permeability and the permittivity can be adjusted by adding a meta material to the substrate or by forming voids in the substrate. The RF filter can be a stepped impedance filter. Some filter portion includes a transmission line portion having an impedance influenced by the substrate region on which the filter portion is provided. The construction of the transmission line section can be a microstrip, embedded microstrip or stripline. A supplemental layer of the substrate can be provided right under the filter portion. COPYRIGHT: (C)2004,JPO
Abstract:
An electronic device includes a package surrounding at least one integrated circuit, a microfluidic cooler in the package, and a controller for controlling the micro-fluidic cooler so that the cooling fluid provides evaporative cooling, such as droplet impingement cooling. The electronic device may comprise a power consumption sensor connected to teh at least one integrated circuit, and the controller may control the micro-fluidic cooler responsive to the power consumption sensor. A temperature sensor may be connected to the at least one integrated circuit, and the controller may control the micro-fluidic cooler responsive to the sensed temperature. The microfluidic cooler may comprise at least one droplet generator for generating and impinging droplets of cooling fluid onto the integrated circuit. The at least one droplet generator may comprise at least one micro-electomechanical (MEMs) pump. The electronic device may also include at least one heat exchanger crried by the package and connected in fluid communication with the micro-fluidic cooler. The package may have a parallelepiped shape with a first pair of opposing major surfaces, a second pair of opposing side surfaces and a third pair of opposing end surfaces. In these embodiments, the at least one heat exchanger may preferably comprise a pair of heat exchangers coupled to the second pair of opposing side surfaces.
Abstract:
PROBLEM TO BE SOLVED: To provide a circuit for processing radio frequency signals. SOLUTION: The circuit includes a substrate where the circuit can be placed. The substrate can be a meta material and can incorporate at least one dielectric layer. A quarter-wave transformer and at least one ground can be coupled to the substrate. The dielectric layer can include a first region with a first set of substrate properties and a second region with a second set of substrate properties. Substrate properties can include a permittivity and a permeability. A substantial portion of the quarter-wave transformer can be coupled to the second region. The permittivity and/or permeability of the second region can be higher than the permittivity and/or permeability of the first region. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for providing increased flexibility in design for an RF circuit. SOLUTION: A circuit is used for processing a radio frequency signal. The circuit has a substrate on which the circuit is placed. The substrate can be a meta-material, and can incorporate at least one dielectric layer. A directional coupler and at least one ground can be coupled to the substrate. The dielectric layer can include a first region having a first set of substrate characteristics, and a second region having a second set of substrate characteristics. The substrate characteristics include a permittivity and permeability. A substantial portion in the directional coupler can be coupled to the second region. The permittivity and/or the permeability of the second region is higher than the permittivity and/or the permeability of the first region. The increased permittivity and/or permeability reduces the size of the directional coupler, and changes the various electric characteristics related to the directional coupler. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for optimizing a dielectric circuit substrate material in order to increase the degree of freedom in design of an RF (radio frequency) circuit, and more specifically, to improve the performance in a filter having two ports and a connected resonant line. SOLUTION: A printed circuit for processing radio frequency signals includes a substrate including substrate regions on which the printed circuit can be mounted. The circuit is a coupled line filter including a plurality of resonator elements. The plurality of resonator line elements are at least partially connected to respective substrate regions having substrate characteristics which can be each independently customized. The circuit further includes at least one ground or ground plane (50) connected to the substrate. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for optimizing a dielectric circuit board material for improving performance in a resonance line. SOLUTION: The resonance circuit for processing a radio frequency signal includes a substrate. The substrate is a meta material and can incorporate at least one substrate layer. The resonance line and at least one ground can be connected to the substrate. One end of the resonance line is short-circuited to the ground electrically, or can be opened electrically. A substrate layer can include a first region having substrate characteristics and at least one second region. At least one portion of the resonance line can be connected to the second region. A set of first and/or second substrate characteristics is changed discriminatorily, and permittivity and/or permeability can be changed in a selection region. A set of third substrate characteristics is also given to a third region. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a circuit for processing radio frequency signals. SOLUTION: This circuit includes a substrate on which the circuit can be provided. The substrate can be a meta material and can incorporate at least one dielectric layer. A quarter wavelength converter and at least one ground can be connected to the substrate. The dielectric layer can include a first region having a first group of substrate properties, and a second region having a second group of substrate properties. A permittivity and a permeability can be included in the substrate properties. A substantial part of the quarter wavelength converter can be connected to the second region. The permittivity and/or permeability of the second region can be set so as to be higher than the permittivity and/or permeability of the first region. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method for forming a buried type hole or channel in a low-temperature calcinated ceramic. SOLUTION: The method for forming a low-temperature calcinated ceramic (LTCC) device includes the formation of a channel in a first LTCC tape layer. A wax is inserted into the channel. The wax is one type to be burned out at a lower temperature than a sintering temperature for the first LTCC tape layer. At least one second LTCC tape layer is stuck on the first LTCC tape layer to form a stack. The stack is sufficiently pressed to laminate the first and second layers. The laminated layers are calcinated at a sintering temperature to form a ceramic sturcture sintered from the first and second LTCC tape layers, and all or almost of the wax is burned out and removed from the channel. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method and device for providing more flexibility to RF circuit design. SOLUTION: A printed circuit for processing radio frequency signals includes a substrate including substrate regions upon which the printed circuit is placed. The circuit is an inter-digital filter 10 including a plurality of resonator configuring elements 15 to 21. The plurality of resonator line elements 15 to 21 are at least partially coupled to respective substrate regions that have substrate characteristics that are independently customizable. The circuit further includes at least one ground or ground plane coupled to the substrate. COPYRIGHT: (C)2008,JPO&INPIT