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7612632 |
Line-waveguide converter having plural electrode cells and radio communication device using such a converter
A line-waveguide converter includes a backside electrode disposed on a first face of a dielectric substrate, a waveguide attached to a second face of the dielectric substrate opposite the first...
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7605673 |
Transformer for impedance-matching power output of RF amplifier to gas-laser discharge
An RF impedance-matching transformer for matching the output impedance of an RF amplifier to the discharge of a gas-discharge laser includes upper and lower dielectric plates arranged face-to-face...
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7605672 |
Inverted style balun with DC isolated differential ports
The present invention is directed to a balun that includes a first coupler structure having a first port of a balanced port pair and an unbalanced port. A second coupler structure includes a second...
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7595704 |
System and apparatus for a three-line balun with power amplifier bias
A balun that includes a first conductor, a second conductor, and a third conductor. The first conductor has a first length. The first conductor also has a first end connected to a first balanced...
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7595703 |
Balun and electronic device using this
A balun is provided in which first balanced line and second balanced line are disposed on a nearly the same plane, first unbalanced line is disposed above first balanced line at a predetermined...
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7589469 |
Coaxial waveguide converter circuit for traveling-wave tube, method of manufacturing same, and waveguide matching part for use in coaxial waveguide converter circuit
A coaxial waveguide converter circuit is provided for converting an input/output coaxial section of a traveling-wave tube to a waveguide. The circuit comprises a waveguide matching part for...
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7586386 |
Transmission line transition from a coplanar strip line to a conductor pair using a semi-loop shape conductor
A first dielectric substrate an electromagnetically coupling conductor for a coplanar strip transmission line disposed on a surface close to a dielectric layer, a second dielectric substrate has a...
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7579923 |
Laminated balun transformer
A laminated balun transformer that may be used for lines having various impedances includes a first magnetic substrate, a laminated body, a second magnetic substrate, and external electrodes. The...
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7573349 |
Antenna balun
The present antenna system includes a balun for coupling an antenna to a feed line. The balun has at least two transmission line transformers, such that the transmission line transformers are...
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7570129 |
3D MMIC balun and methods of making the same
A three dimensional (3D) monolithic integrated circuit (MMIC) balun and methods of making the same are provided. A primary spiral winding is spaced apart from a secondary primary winding by a gap...
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7567152 |
Passive part
A dielectric substrate includes a filter unit, a non-balance/balance conversion unit, and a connection unit for electrically connecting the filter unit to the non-balance/balance conversion unit...
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7567143 |
Balanced-unbalanced transformation device and method for manufacturing balanced-unbalanced transformation device
A balanced-unbalanced transformation device includes a plate-like dielectric substrate having a ground electrode and a plurality of major surface electrodes formed thereon. Two of the major surface...
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7561012 |
Electronic device and filter
A pair of balanced terminals is connected to a pair of interdigital-coupled quarter-wave resonators in an electronic device. This electronic device has a first resonance mode that resonates at a...
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7554419 |
Balanced filter and duplexer
A balanced filter includes: a filter that has at least one unbalanced signal terminal; a balun that is a lumped parameter balun that inputs or outputs signals with different phases generated based...
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7554418 |
Waveguide/strip line converter having a multilayer substrate with short-circuiting patterns therein defining a waveguide passage of varying cross-sectional area
A waveguide/strip line converter includes a waveguide and a multilayer substrate. A second end of the multilayer substrate is fixed to an opening of the waveguide. The multilayer substrate includes...
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7548141 |
High frequency filter
A high frequency filter incorporates: an unbalanced input/output terminal; two balanced input/output terminals; two resonators respectively provided between the unbalanced input/output terminal and...
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7548134 |
Transmission line transformer
A transmission line transformer is disclosed. The transformer improves efficiency and a dynamic range of a power amplifier. The transformer is formed to have a plurality of load impedances as the...
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7542007 |
Antenna, earphone antenna, and broadcasting receiver including earphone antenna
An antenna of the present invention includes a coaxial cable, antenna elements ( 3 a and 3 b ), and an unbalanced/balanced converter. The unbalanced/balanced converter has a high-pass circuit...
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7541888 |
Dual band coupled-line balanced-to-unbalanced bandpass filter
A dual band balun filter that includes a first coupled-line section pair provided with a first terminal; a second coupled-line section pair configured to be connected to the first coupled-line...
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7541887 |
Balun
A balun includes a first transforming part ( 30 ) and a second transforming part ( 40 ). The first transforming part includes a first coupled line ( 32 ), a first transmission line ( 34 ), a second...
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7541886 |
NRD guide transition, and coupling structure of dielectric material and conductor
In order to realize with a low loss a hybrid structure in which an NRD guide is used for a transmission part and a microstrip line is used for a circuit element loading part, the present device...
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7535314 |
Line transition device, high-frequency module, and communication apparatus
A line transition device that includes a waveguide and a microstrip line. The microstrip line is substantially orthogonal to an electromagnetic wave propagation direction in the waveguide. A choke...
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7535313 |
Balun
A balun includes an input line for receiving an unbalanced signal, an output line for receiving the unbalanced signal from the input line and outputting a balanced signal, and a ground. The input...
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7528676 |
Balun circuit suitable for integration with chip antenna
A balun including a single-ended port, a differential port and first and second sets of coupled transmission line sections. Each set has three coupled transmission line sections. The signal...
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7528675 |
Microstrip-type BALUN, broadcast receiving apparatus using the same and method of forming thereof
Disclosed are a microstrip-type BALUN (BALance to UNbalance transformer), broadcast receiving apparatus using the same, and a method for forming the same. The BALUN includes a board and a...
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7522014 |
High frequency line-to-waveguide converter and high frequency package
A high frequency line-waveguide converter comprises a high frequency line including a dielectric layer, a line conductor disposed on an upper surface of the dielectric layer, and a ground conductor...
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7519334 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces
A multi-mode I/O circuit or cell ( 10 ) is provided for transmitting and receiving data between ICs, where each IC contains at least one of the I/O circuits. Each data link includes transmitter...
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7515013 |
Rectangular waveguide cavity launch
An apparatus and method relating to a rectangular waveguide cavity launch are disclosed that enable coupling an electromagnetic wave from the top surface of a waveguide distribution network formed...
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7511591 |
Setting of the impedance ratio of a balun
The modification of the impedance ratio of a balun of four conductive windings formed in two metallization planes stacked by being interdigited and electrically in series two by two, by connecting...
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7498896 |
Waveguide to microstrip line coupling apparatus
Electrical coupling apparatus providing transition between a high radio frequency waveguide and a perpendicularly oriented microstrip line without use of a shorting cap fixes an open end of the...
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7495525 |
Multilayer planar balun transformer, mixers and amplifiers
A surface mountable transformer integratable into a printed circuit board. In one aspect, the transformer comprises two broadside vertically coupled transmission lines. In another aspect, the...
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7486156 |
Millimeter-wave band broadband microstrip-waveguide transition apparatus having a main patch and a parasitic patch on different dielectric substrates
Provided is a broadband microstrip-waveguide transition apparatus operating in a millimeter waveband. The millimeter-wave band broadband microstrip-waveguide transition apparatus includes a slot...
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7479850 |
Miniaturised half-wave balun
A miniaturised half-wave balun comprises a single-ended I/O port comprising a first signal carrying terminal for connection to a source impedance and a differential I/O port comprising second and...
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7479842 |
Apparatus and methods for constructing and packaging waveguide to planar transmission line transitions for millimeter wave applications
Apparatus and methods are provided for constructing waveguide-to-transmission line transitions that provide broadband, high performance coupling of power at microwave and millimeter wave...
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7479841 |
Transmission line to waveguide interconnect and method of forming same including a heat spreader
An MMIC chip is disclosed that includes a planar substrate having a first surface and a second surface, a conductive layer having an opening on the first surface, a transmission line on the second...
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7471166 |
Balanced-to-unbalanced transformer embedded with filter
A balanced-to-unbalanced transformer embedded with a filter, the balanced-to-unbalanced transformer being disposed in a multi-layered substrate and comprising vertically coupled transmission lines...
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7471165 |
High-frequency balun
In a balun for mutually converting an unbalanced line for unbalanced input/output and a balanced line for balanced input/output, the unbalanced line and the balanced line are microstrip lines...
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7468640 |
Balanced splitter
A balanced splitter has six ¼ strip lines. The first and third strip lines are electromagnetically coupled to each other to form a coupler. The second and fourth strip lines are...
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7463110 |
Transition device between a waveguide and two redundant circuits coupled each to a coplanar line
A redundant transition device between a waveguide ( 1 ) and at least two redundant processing circuits ( 2, 3 ) includes two uncoupled coplanar lines ( 5, 6 ) formed one on either side of a single...
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7463109 |
Apparatus and method for waveguide to microstrip transition having a reduced scale backshort
Methods and apparatuses are directed to a transition between a waveguide and a microstrip. One embodiment features an open-ended waveguide having an exposed side at a distal end, a substrate...
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7453327 |
Symmetrizing arrangement
A re-balancing device ( 1 ) comprising a line ( 12 ). Said line comprises a first pole ( 3 ) of a first conductor ( 2 ) and a first pole ( 6 ) a second conductor ( 5 ) on a first side ( 8 ), in...
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7449975 |
Ultra wide bandwidth balun
A balun is a device for coupling together balanced and unbalanced electrical signals. An ultra-wide bandwidth balun can operate in a frequency band of more than 1.5 GHz to 26.5 GHz. The balun can...
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7443263 |
Wide-bandwidth balanced transformer
The present invention comprises novel means and apparatus which provide both impedance matching of arbitrary impedances and transformation between single-ended, floating, and balanced circuits over...
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7439822 |
Waveguide substrate having two slit-like couplings and high-frequency circuit module
A waveguide substrate has improved signal conversion characteristic to a cavity waveguide at a post wall waveguide less suffering a manufacturing error occurring at a portion leading the signal to...
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7423497 |
Device for coupling suspended stripline and NRD guides
A hybrid microwave-coupling device is for transmitting signals from non-radiative dielectric (NRD) waveguides to suspended striplines (SSL), and vice-versa. The two transmission lines are placed...
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7420437 |
Compact balun with rejection filter for 802.11a and 802.11b simultaneous operation
A balancing/unbalancing (balun) structure for operating at frequency f 1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports are coupled to a...
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7420436 |
Transmission line to waveguide transition having a widened transmission with a window at the widened end
In one aspect, an embodiment of the invention provides a transition from a planar substrate/chip circuit microwave transmission line to waveguide transmission media on the back of the...
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RE40465 |
Dielectric filter, dielectric duplexer, and communication apparatus
A λ/2 resonator comprises an inner conductor formed hole having an inner conductor with both open-ends, formed therein, and λ/4 resonators comprise inner conductor formed holes having inner...
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7397328 |
Balanced filter device
A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL 1 a , SL 1 b ) constituting resonance electrodes on the unbalanced side,...
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7388450 |
Packaged electronic components for producing a sub-harmonic frequency signal at millimetric frequencies
The invention relates to millimetric packaged electronic components for applications at high frequencies greater than 45 GHz. According to the invention, to facilitate the design of a system...
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