Matches 101 - 150 out of 195 < 1 2 3 4 >
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5387886 Duplex filter operating as a change-over switch  
The invention discloses a three-port filter being able to connect alternately a receiver and a transmitter to a common antenna in a ratio system operating by the time division principle. The first...
5387885 Salphasic distribution of timing signals for the synchronization of physically separated entities  
A method and apparatus is disclosed for providing salphasic distributions of synchronization signals to physically separated entities typically composing a system. Salphasic behavior is a...
5349364 Electromagnetic power distribution system comprising distinct type couplers  
A stripline or microstrip feed system distributes electromagnetic power among a set of utilization devices such as the radiators of an array antenna. In the feed system, elongated assemblies of...
5323169 Compact, high-gain, ultra-wide band (UWB) transverse electromagnetic (TEM) planar transmission-line-array horn antenna  
An antenna for the radiation of ultra-wideband pulsed electromagnetic radiation. The invention is a high gain, transverse electromagnetic parallel-plate, open-sided transmission-line array horn...
5283540 Compact signal isolating microwave splitters/combiners  
A microwave splitter/combiner has a flat housing comprising similar top and bottom horizontal circular cover plates joined at their peripheries by an annular flange of short vertical length. The...
5281933 Line power tapping device for cable TV distribution having a moveable module  
A device for tapping the line power of a cable television distribution system. The device is intended for connection to a standard port of a cable tap. The device includes a threaded portion for...
5272455 Trunk cable coupling using non-linear elements  
An interface circuit for coupling a drop port to a trunk line carrying data processing signals, includes a transformer network connected between the trunk line and that drop port and a resistor...
5223809 Signal isolating microwave splitters/combiners  
A microwave signal splitter/combiner device includes a primary coaxial connector mounted by a first hub and serving as an input/output for a composite signal to or from the device, secondary...
5216394 Dielectric multi-line resonator including a coupling conductor line mainly inductively coupled to a resonator conductor line  
For removing the variation of resonant frequency of the 1/4 λg coaxial resonator, which is caused by the external connection as a result of conventional capacitive coupling, a 1/4 λg line having...
5212462 Stripline microwave module having means for contactless coupling between signal lines on different planar levels  
The present invention relates to a stripline microwave module comprising: at least one first line situated in a first plane; at least one second line; and at least one coupling opening situated in...
5204644 Circuit arrangement for distributing or for combining radio-frequency power  
In a circuit arrangement for distributing radio-frequency power supplied from a summation port to a plurality of single-ports, or for combining in a summation port radio-frequency power supplied...
5142253 Spatial field power combiner having offset coaxial to planar transmission line transitions  
A cylindrical multi-port combiner having a graceful degradation characteristic with a high degree of isolation (25 db) between ports and a high combining efficiency (>90°) is disclosed. A...
5132648 Large array MMIC feedthrough  
A method and apparatus are disclosed for manufacturing large Monolithic Microwave Integrated Circuit (MMIC) arrays. MMIC elements are manufactured on a substrate to form a MMIC module and first...
5109168 Method and apparatus for the design and optimization of a balanced tree for clock distribution in computer integrated circuits  
A balanced tree clock distribution network for an integrated circuit including a branching clock line of layered metal in which each branch of the clock line has equal resistance, apparatus for...
5107232 Wideband stripline divider having meander input lines disposed in a trough  
A wide bandwidth microwave power divider is formed of a conductive enclosure having a longitudinal axis and a common wall lying therealong forming a pair of partially enclosed compartments. A pair...
5091708 Transmission line transformer  
A birdcage knee coil operated in quadrature in an NMR imaging system includes a pair of like butterfly coils each formed from a strip transmission line formed on a common dielectric substrate. The...
5058198 Radio frequency tap unit which can be reconfigured with minimal disruption of service  
A modular cable television tap unit includes a base module which receives a cable television signal having an operational power signal component from a cable distribution network. The base unit...
5045823 Terminating scheme for transmitting multiple signals on a coaxial cable to multiple tap outlets  
The present invention utilizes a coupling tap that contains two parallel communication paths from the connection at a coaxial cable to a tap output, to which a device can be connected. One path...
5021755 N-way signal splitter with isolated outputs  
An n-way signal splitter having isolated outputs with a printed circuit board geometry providing the necessary crossovers with impedance lines, running under and orthogonal to resistive components,...
4988962 Circuit for correcting group delay at microwave frequencies  
A microwave frequency group delay corrector operates by reflecting the microwave on a correcting complex impedance (jx). It makes use of a power divider (13), of the Wilkinson type. The complex...
4985709 Magnetostatic wave device  
A magnetostatic wave device comprises a ferrimagnetic base material such as a thin film of YIG (yttrium iron garnet). The ferrimagnetic base material is formed on a supporting plate, for example, a...
4978933 Wideband microwave hybrid circuit with in-phase or phase-inverted output signals  
To an output terminal of a hybrid circuit with output signals mutually phase shifted 90 degrees is connected a half-wave line section while to the second output terminal is connected a low...
4972505 Tunnel distributed cable antenna system with signal top coupling approximately same radiated energy  
A distributed radio antenna system for extending radio communications into confined regions into which external radio signals do not penetrate, the system having separate transmitting (TX) and...
4902989 Local area network coaxial cable connection device  
The possible length of tap lines to the serial bus of a local area network is extended to about 0.7 meter by inserting an inductance 2 into the serial bus 1, and connecting a further coaxial cable...
4891614 Matching asymmetrical discontinuties in transmission lines  
The invention relates to matching asymmetrical discontinuites in transmission lines to give low reflection coefficients (less than five percent) over a wide frequency band (corresponding to at...
4870421 Regulating switch for transmitting modules in a phased array radar  
The invention relates to compact means for turning power on and off and regulating that power as it is supplied to a pulsed transmitting module in a phased array radar system. The arrangement...
4825175 Broadband, high isolation radial line power divider/combiner  
Disclosed is a power divider/combiner using two parallel plate radial transmission lines having parallel plate spacing of less than λ/2 and which operates in a higher order mode, preferably the...
4823096 Variable ratio power divider/combiner  
A variable ratio power divider/combiner includes first and second resonant circuits connected between the input port and the two output ports in the divider configuration. The signals appear at an...
4817189 Directional high frequency broadband transformer made by printed circuit technique  
A directional H.F. broadband transformer made by a printed circuit technique includes an insulating support carrying a two-hole ferrite core. A planar coil arrangement includes two web spirals...
4812782 Non-reactive radial line power divider/combiner with integral mode filters  
Disclosed is a parallel plate radial transmission line having parallel plate spacing of less than λ/2 and which utilizes a specific higher order mode, preferably the first higher order...
4806937 Power distribution system for a phased array radar  
The invention relates to the distribution of power and control commands to a plurality of pulsed T/R modules coupled to the antenna elements of a phased array radar and arranged in rows and...
4774481 Wideband transmission line signal combiner/divider  
RF signals may be split or combined across a wide band of frequencies with low insertion losses, large isolation between input ports, and low voltage standing wave ratio by means of coaxial...
4725792 Wideband balun realized by equal-power divider and short circuit stubs  
A balun comprises a one-to-two, equal-power, matched power divider having branch transmission lines whose lengths differ by 1/2 wavelength at a design frequency. The shorter of these two branch...
4724400 Linear amplifier assembly  
An RF power splitter-combiner for use in an amplifier system of the kind requiring both RF power splitting and RF power combining, comprising: RF splitter means containing a top and bottom wall,...
4700145 Radially fed microwave signal combiner/distributor apparatus  
Radially fed microwave signal combiner/distributor apparatus comprising a central coaxial connector which is coupled via radially extending paths to several circumferential coaxial connectors which...
4647868 Push-pull radio-frequency power splitter/combiner apparatus  
A four-way power splitter/combiner apparatus comprises five unbalanced ports, configured as a common port and four other ports, with power introduced into the common port, over a relative wide...
4644303 Multiple cavity square prism filter transmitter combiner with shared square walls and tuning controls mounted on rectangular end walls  
A transmitter combiner includes a plurality of adjacent square prism filters, each of which shares at least one square wall with another of filters. Tuning of the individual square prism filters is...
4641107 Printed circuit radial power combiner with mode suppressing resistors fired at high temperature  
A power splitter/combiner includes a radial waveguide and a coaxial common port coupled to the center of the radial waveguide. The radial waveguide has a plurality of transmission lines around its...
4639694 Power distribution circuit having center portions of isolation resistors connected together  
A power distribution circuit having two Wilkinson type bi-distribution circuits each of which halves and then distributes its input and formed of a microstrip on a dielectric substrate or a...
4580114 Active element microwave power coupler  
Microwave couplers such as power splitters and combiners for coupling a common terminal to two branch terminals are disclosed which are compact and provide gain. Each leg of the branching circuit...
4578702 CATV tap-off unit with detachable directional coupler  
A tap-off unit or signal transmission device for use in a cable TV system having a plurality of such tap-off units, each tap-off unit receiving cable TV signals from a feeder cable and distributing...
4577167 Microstrip line branching coupler having coaxial coupled remote termination  
A strip transmission line power divider having an isolated port remote from the output ports is disclosed. Power division is provided by a two branch strip transmission line. A coaxial transmission...
4481641 Coaxial cable tap coupler for a data transceiver  
A coaxial cable coupler that provides a low impedance through conductor for a passive coaxial transmission cable and a high impedance tap to periodic transmission means and receiver means. The tap...
4472691 Power divider/combiner circuit as for use in a switching matrix  
A one port-to-M port passive signal power divider circuit (or combiner circuit) where M>2 and ≠ 2 N , M and N are integers, includes M - 1 two-way in-phase passive power dividers having a...
4463325 Stub-supported coaxial power divider having dissipation resistor buried in center conductor  
A coaxial microwave divider network employing a quarter wavelength long grounded stub for providing support for the center conductor of the divider and also providing improved heat dissipation of...
4446463 Coaxial waveguide commutation feed network for use with a scanning circular phased array antenna  
A dominant TEM mode and a pair of spatially orthogonal TE 11 modes suitably excited at the input ports of a coaxial waveguide commutator portion of a coaxial waveguide commutation feed network are...
4401955 Broadband, high power, coaxial transmission line coupling structure  
A low VSWR, high isolation microwave matched coaxial transmission line power divider/combiner compensates for parasitic reactances with lumped compensating elements to yield a compact, densely...
4386324 Planar chip-level power combiner  
A chip-level power combiner comprises plural amplifier devices, a power divider, and a power combiner. The power divider and the power combiner are disposed in mirror-image fashion. Each...
4375622 Multiport radio frequency signal combiner  
A multiport radio frequency (RF) signal combiner is described for combining three or more RF signals for application to an antenna. The combiner includes an input port for each RF signal, an output...
4359700 Balancing network for microwave power combiner  
The diode bias input terminals of an IMPATT microwave power combiner are resistively coupled to a common floating node to provide stabilization of the operating points of the individual IMPATT...
Matches 101 - 150 out of 195 < 1 2 3 4 >