Wave transmission lines and networks inventions 02/06

20060038630 - Electromagnetic noise suppressor, structure with electromagnetic noise suppressing function, and method of manufacturing the same: An electromagnetic noise suppressor of the present invention has magnetic resonance frequency of 8 GHz or higher, and the imaginary part μ″H of complex magnetic permeability at 8 GHz is higher than the imaginary part μ″L of complex magnetic permeability at 5 GHz. Such an electromagnetic noise suppressor is capable...

20060038631 - Ac coupling circuit: An AC coupling circuit is disclosed herein. An embodiment of the circuit comprises a first differential input and a second differential input. A first resistor is connected between the first differential input and the second differential input. A first capacitor is connected between the first differential input and a first...

20060038632 - Series-parallel resonant matching circuit and broadband amplifier thereof: A series-parallel resonant matching circuits and a broadband power amplifier thereof are disclosed. The series-parallel resonant matching circuit is connected to the last power transistor and the next power transistor. The series-parallel resonant matching circuit comprises a series matching inductor, a parallel matching inductor and an impedance transformation unit. The...

20060038633 - Impedence matching along verticle path of microwave vias in multilayer packages: High frequency matching in a multilayer ceramic package is accomplished by a radial stub arrangement provided in one or more of the ground planes of a stack of layers forming the package. A signal via extends vertically upwardly between a ball grid array at a bottom surface of the stack...

20060038634 - Antenna control unit and phased-array antenna: As shown in FIG. 1, a paraelectric transmission line layer 102 and a ferroelectric transmission line layer 105 are laminated through a ground conductor 107, and plural phase shifters which are connected via through holes 108 that pass through the ground conductor 107 are disposed on both of the transmission...

20060038635 - Integrated passive filter incorporating inductors and esd protectors: A method for implementing an inductor-capacitor filter in an integrated circuit. Embodiments of the invention implement a 5-pole LC low-pass filter suitable for incorporation in wireless applications necessitating compact layouts. Inductors are formed in an IC as concentric coils on metallization layers, the concentric coils providing a negative coupling coefficient...

20060038636 - Resonator and filter using the same: An acoustic resonator includes: a substrate; a resonator film which is supported above the main surface of the substrate and includes a piezoelectric film and a pair of a top electrode and a bottom electrode which are formed on part of the top surface and part of the bottom surface...

20060038637 - Saw filter and method of manufacturing the same: In an SAW filter on one side of a piezoelectric substrate are formed a pattern portion constituted by a conductor and provided on the outer circumferential portion of the surface acoustic wave device, and a conductor removing portion formed between the surface acoustic wave device and the pattern portion. The...

20060038638 - Dielectric filter: In order to achieve miniaturization without degrading Q of a dielectric filter in the present invention, resonant elements has upper and lower ground electrodes. The upper ground electrode is formed of upper ground electrodes which correspond to wide portions and have no pattern formed on a portion corresponding to narrow...

20060038639 - Systems and methods for blocking microwave propagation in parallel plate structures utilizing cluster vias: Systems and methods are taught for blocking the propagation of electromagnetic waves in parallel-plate waveguide (PPW) structures. Periodic arrays of resonant vias are used to create broadband high frequency stop bands in the PPW, while permitting DC and low frequency waves to propagate. Particular embodiments include clusters of small vias...

20060038640 - Ceramic loaded temperature compensating tunable cavity filter: A high Q RF cavity resonator loaded with a ceramic disc, the resonator comprising an inner conductive post having a length less than a quarter wavelength. The resonance frequency of the resonator is tunable by changing a distance between a) an outer plate and b) a ceramic disc and an...

20060038641 - Phase change control devices and circuits for guiding electromagnetic waves employing phase change control devices: A circuit for guiding electromagnetic waves includes a substrate for supporting components of the circuit. The circuit includes a control device which includes a first conductive element on the substrate for connection to a first component of the circuit and a second conductive element on the substrate for connection to...

20060033592 - Miniature power splitter: A power splitter that has a small package size and repeatable electrical characteristics. The power splitter includes a low temperature co-fired ceramic (LTTC) substrate with several layers. Electrical components such as resistors and capacitors are integrated within the LTTC substrate. A transformer is attached to the upper surface of the...

20060033593 - Method and apparatus with improved varactor quality factor: An embodiment of the present invention provides an apparatus, comprising a varactor; and at least one external high-Q fixed capacitors combined with the varactor thereby improving the Q of the varactor. The at least one external high-Q fixed capacitor may combined in series with the varactor or in parallel with...

20060033594 - Temperature controlled mems resonator and method for controlling resonator frequency: There are many inventions described and illustrated herein. In one aspect, the present invention is directed to a temperature compensated microelectromechanical resonator as well as fabricating, manufacturing, providing and/or controlling microelectromechanical resonators having mechanical structures that include integrated heating and/or temperature sensing elements. In another aspect, the present invention is...

20060033595 - Method of manufacturing piezoelectric thin film device and piezoelectric thin film device: Method of producing a piezoelectric thin film device comprises a step of forming an insulating layer (12) capable of being etched by a specific chemical substance on the upper surface of a substrate (11); a step of forming a sacrificial layer (13) made of a substance having a higher etching...

20060033596 - Method and apparatus for stabilizing the temperature of dielectric-based filters: A dielectric-based filter includes a thermally insulated housing, at least one filter formed from a dielectric material disposed inside the insulated housing, and a temperature maintenance device having a heating component and a cooling component for maintaining the temperature of the filter inside of the insulated housing within a temperature...

20060033597 - Wireless safety alarm with enlarged actuator button: A wireless alarm system incorporates a battery powered transmitter and a battery powered receiver. The transmitter features an enlarged actuation button with a high point that, together with the hinge, describes a torque arm. The receiver unit incorporates an alarm and a receptacle for storing the transmitter unit. When a...

20060028285 - Method and apparatus for automatic tunnel configuration: Method and apparatus for automatic tunnel configuration are provided. The method includes requesting information regarding end-points from one of the end-points of existing tunnels that connect second networks via a first network; and configuring new tunnels whose end-points are set up to have the end-points of existing tunnels and a...

20060028286 - Non-reciprocal circuit device: A non-reciprocal circuit device comprising a first inductance element disposed between a first input/output port and a second input/output port, a second inductance element disposed between the second input/output port and a ground, a first capacitance element constituting a first parallel resonance circuit with the first inductance element, a second...

20060028287 - Variable resistance circuit: A method of finding an unknown value from within a range of values is disclosed that divides the range into weighted subranges and then, beginning with an arbitrary search value within the range, performs a number of simple comparisons to determine the value for each subrange that will result in...

20060028288 - Ball grid array resistor capacitor network: An R-C network formed on a substrate. The capacitor includes a metal member with anodized and unanodized layers. The unanodized layer functions as one of the capacitor's electrodes. The anodized layer functions as the capacitor's dielectric layer. The resistor is formed from material on the same side of the substrate...

20060028290 - High-frequency temperature-variable attenuator: An absorptive temperature-variable microwave attenuator is produced using at least two temperature-variable (or fixed) resistors in series with a transmission line. The temperature coefficients of the temperature-variable resistors are selected so that the attenuator changes at a controlled rate with changes in temperature while attenuator remains relatively matched to the...

20060028289 - Wideband temperature-variable attenuator: An absorptive temperature-variable microwave attenuator is produced using a first plurality of shunt resistors separated by quarter-wave transmission lines connected by a series resistor with a second plurality of shunt resistors separated by quarter-wave transmission lines. At least one or more of the resistors are temperature-variable resistors. The temperature coefficients...

20060028291 - Variable attenuation circuit having large attenuation amount with small circuit size: A variable attenuation circuit includes an attenuation circuit which has a first semiconductor variable impedance element, and an attenuation control circuit of which the impedance is changed by a control voltage to be applied from the outside and which has a second semiconductor variable impedance element for controlling the impedance...

20060028292 - Circuit for connection of at least two signal sources with at least one signal output: In a circuit for connection of at least two signal sources with at least one signal output, the signal sources are connected with a control unit. The control unit activates or deactivates the signal sources by transmission of control signals. Each signal source is connected with a blocking unit. Each...

20060028293 - Millimeter wave switch: A switch selectively provides one of a first input signal at a first frequency and a second input signal at a second frequency to an output terminal with low insertion loss and high isolation between the first and second input signals. The first input signal is received at a first...

20060028294 - Line-doubler delay circuit: The length of a transmission line delay circuit is halved by inserting a directional coupler in the signal path ahead of the transmission line and either open circuiting or short circuiting the other end of the transmission line. The signal traveling through the directional coupler and through the transmission line...

20060028295 - Three-dimensional quasi-coplanar broadside microwave coupler: A broadside 90° microwave coupler is composed of three metal layers in a homogeneous dielectric media. The coupler is constructed in a multi-layer configuration with two conductor strips arranged on top of each other so as to be electro-magnetically coupled. A ground plane formed with a third metal layer below...

20060028296 - Waveguide diplexer of electric plane t-junction structure with resonant iris: A waveguide diplexer having an electric plane T-junction structure with a resonant iris is disclosed. The waveguide includes: a waveguide having a predetermined shaped cross section; a transmitting filter for preventing to generate a harmonic band and a higher mode in a receiving band by changing impedance to have a...

20060028297 - Power divider and combiner in communication system: Disclosed is a high frequency omni-directional 2-way power divider which includes one input terminal and two output terminals so that a signal inputted through the input terminal is uniformly distributed to the two output terminals. The high frequency omni-directional 2-way power divider includes: a first Wilkinson regular divider including one...

20060028298 - Antenna duplexer, and rf module and communication apparatus using the same: Either one of a transmission terminal connected to a transmission filter and a receiving terminal connected to a receiving filter is a balanced type terminal, and the other is an unbalanced type terminal. The transmission filter and the receiving filter includes surface acoustic wave resonators or film bulk acoustic resonators....

20060028299 - Dielectric resonator device, dielectric filter, composite dielectric filter, and communication apparatus: In a dielectric resonator device, the outer shape of a support base is larger than the bottom surface of a dielectric core which is in contact with the support base, and the support base is fixed on the inner bottom surface of the cavity with support columns at the periphery...

20060028300 - Radial power divider/combiner: A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received...

20060028301 - Discrete inductor bank and lc filter: A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first inductor bank is selected to filter a...

20060028302 - Magnetic element: A magnetic element capable of obtaining a desired characteristic and at the same time having high productivity that enables cost reduction is provided. The magnetic element includes a first coil (50) to which a signal is inputted, a second coil (60) to which the signal inputted to the first coil...

20060028303 - Noise filter: A noise filter includes a laminate body including magnetic layers, line conductors and ground conductors, with one line conductor and one ground conductor alternately arranged in interfaces between the magnetic layers. With an electrical signal applied to the line conductors with the ground conductors grounded, a high-frequency noise is attenuated...

20060028304 - Comb-line wireless filter: A comb-line wireless filter (5) includes an input end (505a), an output end (505b), a first transmission line (501b), a second and third transmission line (501a, 501c) each having a curved shape, and a first, second, and third capacitor (503b, 503a, 503c). The first transmission line has a first transmission...

20060028305 - High-speed printed circuit boards (pcbs) and manufacturing: High speed printed circuit boards (PCBs) are disclosed comprising a dielectrics systems with the back-side trenches, prepregs, signal lines and ground-plans, wherein the signal line and ground-plan are located on the dielectrics. Using of the open trenches in the substrate help to reduce the microwave loss and dielectric constant and...

20060022766 - High frequency circuit module having non-reciprocal circuit element: A high frequency circuit module having a non-reciprocal circuit element includes a circuit substrate that is composed of a multilayer substrate; and a high frequency circuit element having the non-reciprocal circuit element provided on the circuit substrate. The non-reciprocal circuit element includes a lower yoke composed of ferromagnetic membranes formed...

20060022767 - Surface acoustic wave device: The present invention permits further miniaturization and shortening of a surface acoustic wave device while avoiding the influence of the surface acoustic wave device on the inductance value and performance index (Q value) of the spiral inductor. The chip on which the spiral inductor is formed is flip-chip mounted in...

20060022768 - Surface acoustic wave device, surface acoustic wave apparatus, and communications equipment: A second substrate 21 composed of a material having a lower dielectric constant than that of a piezoelectric substrate 2 having a transmission-side filter region 12 and a receiving-side filter region 13 formed therein is joined to the other main surface of the piezoelectric substrate 2, and a conductor layer...

20060022769 - Microwave phase shifter and power amplifier: A phase shifter according to this invention includes a circuit board having a semi-insulating layer. An active layer is formed in a transmission line forming portion on one surface side of the semi-insulating layer, a first ground conductive layer is formed on the other surface side, a transmission line is...

20060022770 - Lamination type electronic component: A lamination type electronic component includes spiral conductor patterns which are substantially quadrilateral and are electrically connected to each other through a via hole formed in a ceramic insulating layer so as to constitute a coil. The conductor patterns are arranged so that the center in the width direction of...

20060022771 - Miniature wideband bias tee: A miniature wideband bias tee that has a small package size. The bias tee has a low temperature co-fired ceramic substrate with a top surface and a bottom surface. A first inductor is located within the substrate. A second inductor is attached to the top surface and has a core...

20060022772 - Rf circuit component and rf circuit: An RF circuit component according to the present invention includes a waveguide 1 and at least one resonator 2, which is arranged inside the waveguide 1. The resonator 2 includes at least one patterned conductor layer, which is parallel to a plane that crosses an H plane, and resonates at...

20060022773 - Filter, high-frequency module, communication device and filtering method: A filter having an unbalanced terminal, a first stripline resonator of which one end is connected to the unbalanced terminal, a second stripline resonator placed to be electromagnetically coupled to the first stripline resonator, and balanced terminals of which both ends are connected to the second stripline resonator, wherein the...

20060022774 - High frequency via with stripped semi-rigid cable: A high frequency coax via structure is configured with a stripped semi-rigid cable (no shield), and an inductive compensation loop to mitigate transition discontinuity between that via structure's center conductor and the pad to which the center conductor is connected. The performance of top-to-bottom microwave transitions at high frequencies (e.g.,...

20060022775 - Transmission line with stripped semi-rigid cable: A high frequency coax transmission line structure is configured with a stripped semi-rigid cable (no shield). The stripped cable is inserted lengthwise into a metallized grounded slot formed in a printed wiring board. The dielectric barrel of the stripped cable contacts each of the elongated side and bottom walls of...

20060022776 - Harmonic reflective load-pull tuner: The present invention discloses a harmonic reflective tuner system consisting of a radio-frequency (RF) or microwave transmission line having a longitudinal axis, containing two harmonic resonators sliding on the central conductor, where the harmonic resonators are comprising a pair of identical RF slugs, mechanically attached together. The two harmonic resonators...