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6515557 |
Isolating signal divider/combiner and method of combining signals of first and second frequencies
A signal divider/combiner ( 11 ) and method combines first and second frequency signals received by microstrip patch antennas ( 58, 48 ). A first transmission line stub ( 28 ) blocks the second...
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6512423 |
Printed board, method for producing the same, and electronic device having the same
A printed board having a structure for equalizing propagation times on transmission lines connecting the same pair of circuit elements at several terminals. The structure controls each propagation...
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6498541 |
Communication bus system and apparatus and device for use in such a system
A station in a communication bus system is connected to a signal transmission line. The station contains a wave splitter coupled to the transmission line and a transmission section coupled to an...
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6489859 |
Power divider/combiner
The prior art has a problem in which an isolation between output terminals is deteriorated when a thin film resistor is used as an isolation resistor. Such being the case, in a power...
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6446263 |
Anti-loading CATV interface circuit and method
A video interface circuit reduces loading losses when a video system component, such as a television receiver, is connected to a transmission line by amplifying the video signal with a high...
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6335664 |
Branch circuit and its designing method, waveguide-microstrip transition, and application to HF circuit, antenna and communication system
A circuit assembly having a thin and large-area dielectric substrate and improved grounding. To make the assembly, a circuit board comprising the substrate, and a circuit pattern and a metal layer...
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6335662 |
Ferroelectric-tunable microwave branching couplers
The invention discloses the utilization of various transmission lines that entail a ferroelectric material as dielectric substrate to introduce an impedance shift by means of an externally applied...
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6320478 |
Power divider for harmonically rich waveforms
A power divider divides an RF signal into two output signals having a phase difference of 180° or a multiple thereof. When the RF signal is a square wave or another harmonically rich signal, the...
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6157272 |
Power network for collecting distributed powers
This invention relates to an AC power network for collecting the electric powers of distributed power cells. The AC power network of the invention includes a plurality of AC power cells, a...
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6150983 |
Device for receiving and/or transmitting electromagnetic radiation
A device for receiving and/or transmitting an electromagnetic oscillation is described utilizing an antenna element and at least two wave-guiding assemblies which are each connected to a connection...
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6133939 |
CATV directional component with signal reversing capability and method
The present invention describes a directional CATV component, preferably a signal tap, having a housing frame where coaxial signal cable connections are made allowing for tap circuitry to be placed...
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6130585 |
Cross-over distribution scheme for canceling mutually coupled signals between adjacent stripline signal distribution networks
A stripline cross-over architecture includes a first stripline layer extending on a first side of a dielectric layer between a first signal input port and a plurality of first signal output ports....
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6100776 |
High-frequency composite transmission section with switch, LC filter, and notch filter
The invention provides a high-frequency composite unit, wherein: a two-terminal switch constituting a transmission section, an LC filter, and a notch filter are connected between a first terminal...
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6097260 |
Distributed ground pads for shielding cross-overs of mutually overlapping stripline signal transmission networks
A distributed ground pad-based isolation arrangement for a multilayer stripline architecture is configured to effectively inhibit the mutual coupling of signals between overlapping regions of...
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6064279 |
RF offset circuit using a half wavelength transmission line
An RF signal offset circuit using a half wavelength transmission line is provided. The RF signal offset circuit includes an RF transformer having an input coil and an output coil. The input coil...
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6028494 |
High isolation cross-over for canceling mutually coupled signals between adjacent stripline signal distribution networks
A stripline isolation cross-over is configured to cancel signals that may be mutually coupled at cross-over points between adjacent stripline networks within a compact multilayer signal...
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6005454 |
Radio frequency power divider/combiner circuit having conductive lines and lumped circuits
A radio frequency (RF) power divider/combiner circuit prevents an unbalance in current consumption according to a variation of the load, and reduces size of a power amplifier when employed therein....
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5990758 |
High-frequency signal branching device
A high-frequency signal branching device comprises a main body having an input terminal and an output terminal for connecting trunk cables on an input and an output side, respectively, and a branch...
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5986518 |
Distributed MMIC active quadrature hybrid and method for providing in-phase and quadrature-phase signals
A distributed MMIC active quadrature hybrid (10) provides in-phase (I) and quadrature-phase (Q) outputs (22, 24) over an octave bandwidth. The quadrature hybrid includes in-phase and...
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5966059 |
Phase shifting power coupler with three signals of equal amplitude
A three-way phase shifting power coupler (20) processes a primary signal (26) to provide first, second, and third secondary signals (32, 38, and 44) of substantially equal amplitudes. The first and...
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5963111 |
Orthogonal transition from coax to stripline for opposite sides of a stripline board
Apparatus and methods for transitioning between opposite sides of adjacent stripline circuit boards. An orthogonal coaxial connection between opposite sides of the stripline circuit boards is...
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5949301 |
Controlling the direction of broadband energy flow through components in networking systems
The present invention is a switching system for a broadband network operating above five megahertz. The system connects to a first and second network through appropriate network connections. There...
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5949303 |
Movable dielectric body for controlling propagation velocity in a feed line
A feed line structure (1), especially integrated with a stationary array of antenna elements so as to enable adjustment of the direction of the beam radiated from the array. The feed line structure...
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5945634 |
Coaxial cable tap with slitted housing and non-piercing tap insert
A method of forming a tap into an intermediate point on a continuous coaxial cable, and a coaxial cable tap housing suitable for forming such a tap. The tap housing includes a recess and an...
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5920239 |
Multiple dwelling unit tap off including an equalizer circuit
The present invention provides a tap off unit for use in a multiple dwelling unit. The tap off unit includes a housing having an input terminal and an output terminal for interposing the tap off...
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5920240 |
High efficiency broadband coaxial power combiner/splitter with radial slotline cards
A high-powered, solid state microwave and millimeter wave, power combiner and divider is provided by using a plurality of radially oriented tapered slotline cards disposed in a center cylindrical...
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5909154 |
Broadband signal tap with continuity bridge
A continuity bridge in a broadband signal tap for providing a make-before-break connection of an input terminal to an output terminal of the tap. The broadband signal tap comprises a housing and a...
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5909129 |
Low cost microstrip phase detector
A low-cost microstrip phase detector that is photo-etched onto a circuit board is disclosed. The phase detector is used to detect the phase difference between two high-power radio frequency (RF)...
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5892413 |
Multi-tap distribution apparatus
A distribution apparatus is provided which, if a short circuit occurs in a secondary line from a branch output terminal of the apparatus or in terminal equipment connected to the secondary line,...
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5880648 |
N-way RF power combiner/divider
A high power Gysel multinode power network for an RF signal, having a plurality of RF ports, a plurality of RF isolation loads, each load being connected through a coaxial transmission line to a...
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5850165 |
Non-interruptable tap and method
A method and system for distributing multimedia signals to a subscriber from a headend unit. The multimedia signals are transmitted on a network media as an RF signal. The RF signal is fed to an...
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5812034 |
Waveguide mode-strip line mode converter utilizing fin-line antennas of one wavelength or less
A fin-line antenna 51 comprises fins 51a and 51b and a fin-line antenna 52 comprises fins 52a and 52b. The fins 51b and 52b are integrated into one body and connected to a ground layer of a strip...
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RE35876 |
Triaxial transmission line for transmitting two independent frequencies
A triaxial transmission line provides for the transmission of two independent signals from a transmitter to an antenna utilizing the middle conductor as a portion of the coaxial line for both...
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5736908 |
Waveguide-based spatial power combining array and method for using the same
A quasi-optical power combining array provides broadband, well heat sinked performance by means of coupling an array of parallel slotline transition modules between a input waveguide and an output...
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5717405 |
Four-port phase and amplitude equalizer for feed enhancement of wideband antenna arrays with low sum and difference sidelobes
A four-port transmission line device that processes two incoming RF signals of arbitrary phase and amplitude to output two corresponding RF signals of equal phase and amplitude. Two sets each of...
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5705962 |
Microwave power dividers and combiners having an adjustable terminating resistor
Microwave apparatus, such as microwave power dividers or combiners, having an adjustable terminating resistor. The present invention allows adjusting or trimming of the resistor and pretesting of...
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5689219 |
Summing network
A summing network for combining and feeding radio frequency signals supplied by radio transmitters to common antenna means, includes conductors, connectors and a stub. In order to make the tuning...
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5677578 |
Cable TV multi-tap with uninterruptible signal/power throughput
A multi-tap device for tapping a main TV or rf signal to deliver attenuated signals to individual TV receivers includes a pair of socket assemblies for receiving input and output pins of a plug-in...
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5648745 |
Non-interruptible tap and method
A method and system for distributing multimedia signals to a subscriber from a headend unit. The multimedia signals are transmitted on a network media as an RF signal. The RF signal is fed to an...
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5638035 |
Coaxial cable distribution network having a reversible directional coupler
A conducting housing (to be closed by a lid) for a coaxial cable distribution network has a common port and one of an aerial or pedestal port. A motherboard carries an RF circuit and a transfer...
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5572171 |
Signal distribution system with plural lines segments in a path and having varying sensitivities
A signal distribution arrangement having a central signal source and a plurality of signal receivers located along a common path. Each of the signal receivers is coupled in communication with the...
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5568101 |
Distributed constant type multiple-line circuit
A distributed constant type multiple-line circuit is described which comprises a dielectric block (60) having shield conductors (62,64) on its rear surface and all the peripheral side surfaces, a...
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5543762 |
N-way impedance transforming power divider/combiner
An impedance transforming power divider/combiner includes a first transmission line (60) with a first terminal (65) and N transmission line fingers (65, 66, 68, 70) terminating in N transmission...
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5519350 |
Circuitry for delivering a signal to different load elements located in an electronic system
In an electronic system such as an integrated circuit having a number of destination loads such as logic gates, signal is distributed along typically a zero'th level (e.g., polysilicon) electrical...
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5459441 |
Signal propagation using high performance dual probe
Signal propagation apparatus is formed with a waveguide cavity for propagating first and second electromagnetic signals respectively having first and second electric fields that are distinguished...
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5455546 |
High power radio frequency divider/combiner
An N-way power divider/combiner having isolated outputs using printed circuit board geometry that forms a ring of power resistors and output tramsmission lines spiraling around the ring to reduce...
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5424695 |
Ultra-wide frequency range constant phase difference power distributor
To avoid deterioration of isolation between two distributed power outputs in higher and lower end portions of an available frequency region of a Wilkinson power distributor, plural stages of...
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5396198 |
Electronic circuit device having a series connection of resistor and capacitance as a noise reducing circuit connected to a power source wiring
A power source wiring supplies power to individual electronic circuits constituting an electronic circuit device. Load circuits are connected to the power source wiring within the range of an...
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5394125 |
Dimensional stabilization of microwave sheet metal bounded cavities
A microwave cavity closure structure encloses an upper splitter cavity bounded at its top and bottom by, respectively, a rigid metal plate and a flexible sheet metal dish and (b) a lower combiner...
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5394124 |
Dielectric spacing means for microwave sheet metal cavities
A microwave cavity closure structure encloses an upper splitter cavity bounded at its top and bottom by, respectively, a rigid metal plate and a flexible sheet metal dish and (b) a lower combiner...
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