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3753156 |
WIDE-BAND CIRCULATOR
A wide-band circulator for micro-strip line, which utilizes a magnetic member, is described. A circular conductor having integral, radial extensions is disposed on one surface of said magnetic...
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3743972 |
STRIPLINE CIRCULATOR HAVING INNER CONDUCTIVE COATING FOR REDUCING VOLUME OF CAVITY
The surface of a magnet which is disposed in opposed relation with respect to a line conductor vacuum-deposited upon a magnetic medium in a stripline circulator is rendered electrically conductive....
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3739301 |
SINGLE DIODE SINGLE SIDEBAND MODULATOR
A transmission line feeds a PIN diode with an information signal. A modulng signal biases the diode so as to switch the diode between forward and reverse bias at an r.f. frequency. The PIN diode...
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3739302 |
MINIATURIZED FERRIMAGNETIC CIRCULATOR FOR MICROWAVES
A compact strip line type microwave circulator having an internal line impedance matching means is formed by a central conductor plate with spirally slotted conductor arms connected to suitable...
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3733563 |
MICROSTRIP CIRCULATOR WHEREIN RELATED MICROSTRIP PATTERNS ARE DISPOSED ON OPPOSING SURFACES OF DIELECTRIC SUBSTRATE
This invention relates to a microstrip circulator used for steering electrical signals in predetermined directions along particular paths in a controlled manner. A particular embodiment of a...
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3731234 |
COMBINED VOICE FREQUENCY TRANSMISSION AND DC SIGNALING CIRCUIT
A coupler exhibiting substantially improved insertion loss performance comprises a split winding transformer, an inductor network, and a capacitor network. The coupler longitudinally balances...
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3729692 |
MICROWAVE CIRCULATOR CIRCUITS
The microwave circulator circuit comprises two circulators of the same characteristic each having three terminals and three 3dB directional couplers each having four terminals. Three pairs of...
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3725823 |
STRIPLINE CIRCULATOR BIASED BY A PLURALITY OF SMALL POLE PIECES
A plurality of small magnets or pole pieces are disposed in opposed relation with a line conductor vacuum-deposited upon one surface of a disk-shaped magnetic medium so that the external magnetic...
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3721924 |
VARIABLE DELAY LINE UTILIZING ONE PART REFLECTION TYPE AMPLIFIER
A microwave delay line includes a first path of negligible delay time, a second path providing a predetermined delay time determined by a delay line section terminated by a one port reflection type...
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3720890 |
WAVEGUIDE FOR MOISTURE MEASUREMENT
Waveguide for use in moisture measurement comprises two plates with the propagation channel partly formed in each. Preferably both plates have a series of spaced grooves or slots at preferably both...
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3716805 |
DELTA CONNECTED LUMPED ELEMENT CIRCULATOR
A junction strip line circulator of the lumped constant type in which the gyromagnetically coupled strip line members are delta connected in the common region and tuned by three capacitors...
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3715688 |
TM MODE EXCITER AND A MULTIMODE EXCITER USING SAME
Dual elongated apertures are cut along a broad wall of a rectangular waveguide to excite in electromagnetic waves the TM 01 mode in a circular waveguide symmetrically joined to the dual apertured...
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3714608 |
BROADBAND CIRCULATOR HAVING MULTIPLE RESONANCE MODES
A junction circulator in which the usual magnetically biased gyromagnetic post is divided into two parts of different size so that each part is capable of supporting a resonance mode respectively...
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3710280 |
DEPOSITED LATCHED JUNCTION CIRCULATOR HAVING MAGNETIC FLUX RETURN PATHS
A latching ferrite circulator utilizing deposited ferrite layers and operable without the requirement of a permanent magnet. A pair of separated ferrite layers respectively include a microstrip...
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3701054 |
IMPEDANCE MATCHING STRUCTURE HAVING REDUCED PORTIONS OF TRANSMISSION LINES CONNECTED TO OFFSET STRIPLINE CENTER CONDUCTORS WITH STRIP GUIDES CONNECTING SAID CENTER CONDUCTORS
This invention relates to an impedance matching structure and technique t is particularly useful in junction circulators. The improved impedance match between the circulator junction and a strip...
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3700832 |
N-PORT CIRCULATOR
This application describes an n-port circulator comprising n identical circuit units arranged in a closed loop configuration. Each unit is a three terminal circuit including two transistors and two...
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3697901 |
MICROSTRIP CIRCUITS WHEREIN NON-MAGNETIC INSULATING SUBSTRATE AND MAGNETIC INSERT HAVE SAME CRYSTALLINE STRUCTURE
Microwave integrated circuits are designed as microstrip patterns on insulating non magnetic substrates with the same crystalline structure as magnetic materials operating in the same frequency...
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3684983 |
HIGH SPEED CIRCULATOR SWITCH
Substantial improvements in the switching speeds of switchable ferrite devices for microwave transmission are realized by the utilization of a low inductance, low loss waveguide section having a...
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3676803 |
ELECTRONICALLY TUNABLE MATCHING CIRCUIT FOR CIRCULATORS
A novel matching circuit for a circulator of the type requiring a resistance and capacitance for tuning and matching the circulator. The matching circuit includes an electronically variable...
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3673518 |
STUB TUNED CIRCULATOR
A strip line Y-junction ferrite circulator is tuned by locating a stub at the junction between a pair of arms. Each stub acts to adjust the impedance presented at the input arm.
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3670267 |
MICROWAVE SWITCH UTILIZING LATCHED FERRIMAGNETIC MATERIAL IN COUPLING APERTURE OF WAVEGUIDE COUPLER
Two rectangular waveguides are interconnected by a coupling aperture in which a ferrimagnetic body is disposed. At least one latching conductor extends through the body in the axial direction of...
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3670134 |
MICROWAVE OVEN NO-LOAD SENSOR
A no-load sensor is disclosed for protection of the electromagnetic wave energy generator in an electronic heating apparatus including a magnetized body of a ferrimagnetic material disposed within...
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3668563 |
BROADBAND CIRCULATOR WHEREIN DIFFERENTIAL PHASE SHIFT VARIES WITH FREQUENCY IN PREDETERMINED MANNER
A circulator includes a pair of magic tees and a pair of coupling paths therebetween. Each of the coupling paths includes a differential phase shifter. The differential phase shifter in a first...
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3663739 |
UNIFORM FLAT CABLES
Flat cables comprising a layer containing polymeric material, polymeric material-containing ribs spaced along the width running substantially the length of the layer of polymeric material forming...
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3662291 |
WAVEGUIDE FERRITE CIRCULATOR HAVING CONDUCTIVE SIDE OF DIELECTRIC DISC IN CONTACT WITH FERRITE
A high speed microwave device comprises a dielectric waveguide body with conductive interior surfaces, upper and lower triangular transition plates, upper and lower pole pieces extending through...
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3659468 |
SLOTTED WAVEGUIDE CARRIAGE MOVEMENT APPARATUS
A high frequency slotted measuring waveguide has a probe carriage that is moved, by a dual-cable, pulley arrangement, along calibrated ways of the waveguide. The apparatus includes a supported...
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3651430 |
STRIP-LINE CIRCULATOR HAVING MOVABLE COMPENSATING STUB STRIP OVERLYING CENTRAL STRIP-LINE CONDUCTORS
1. In a strip-line microwave circulator comprising at least three central strip conductors disposed between parallel outer conductors and connected at one of their ends at a central point with said...
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3648197 |
MICROWAVE LIMITER THAT SUPPRESSES LEADING EDGE SPIKE OF RADIOFREQUENCY SIGNAL
An RF limiter includes a section of transmission line having ferrite material so arranged therewith and biased as to act as a reciprocal limiter. An RF signal passing in one direction through the...
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3636452 |
RADIO RELAY SYSTEM
The antenna of a broadband radio relay system, of the type wherein all of the receivers and all of the transmitters are connected to respective common transmitting or common receiving lines and...
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3636479 |
MICROWAVE STRIP TRANSMISSION LINE CIRCULATOR
A microwave strip transmission line circulator is disclosed comprising at least one body of ferrite material, a ground plane member overlaying one surface of the ferrite body, and a conductive disk...
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3634782 |
COAXIAL FLAT CABLE
A flat, flexible tape cable is enclosed in a metallic, electrical shield, with the spacing between adjacent signal-carrying conductors, and between said conductors and the shield being so related...
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3629730 |
CAPACITOR ARRANGEMENT FOR WAVE CONDUCTOR SYSTEMS
A matrix storer having magnetic storage elements arranged in rows and columns and constructed as wave conductors. The wave conductors are disposed substantially parallel to a base conductor which...
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3622896 |
MICROWAVE SIGNAL-PROCESSING CIRCUITS, AND PARTICULARLY MICROWAVE FM DISCRIMINATOR
A first hybrid circuit has a microwave signal applied thereto and has two signal component outputs, 90° out of phase with respect to each other. The hybrid circuit is interconnected to a second...
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3621477 |
THREE-PORT CIRCULATOR COMPRISING ONLY TWO CROSSING COILS
Three-port circulator comprising only two windings crossing each other at right angles so that the number of stray capacitances as compared with existing circulators is reduced and the bandwidth is...
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3621475 |
MULTICHANNEL ROTARY JOINT
A multichannel microwave rotary joint composed of a tandem assembly of single channel microwave rotary joints is described wherein the single channel microwave rotary joints at each end of the...
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3621476 |
CIRCULATOR HAVING HEAT DISSIPATING PLATE
A nonreciprocal circuit element in which some portions of a heat dissipating plate or heat sink which are introduced into a magnetic shield case through apertures thereof are made in close contact...
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3617950 |
JUNCTION CIRCULATOR HAVING A CONDUCTIVE SEPTUM IN JUNCTION REGION
A junction circulator in which the usual magnetically biased ferrite post is modified by being separated from at least one conductive boundary by a dielectric gap and by having a conductive septum...
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3617946 |
JUNCTION CIRCULATOR WHEREIN A CONDUCTIVE CORE EXTENDS WITHIN GYROMAGNETIC MATERIAL
A junction circulator in which the usual magnetically biased ferrite post is modified by being separated from one conductive boundary by a dielectric gap and by having a conductive core extending...
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3617951 |
BROADBAND CIRCULATOR OR ISOLATOR OF THE STRIP LINE OR MICROSTRIP TYPE
A microwave wide band circulator or isolator device of the strip line or microstrip type wherein the circuit is planar and has a plurality of outwardly tapering legs each of which constitutes a...
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3617945 |
STRIP LINE CIRCULATOR WHEREIN THE BRANCH ARMS HAVE PORTIONS EXTENDING IN A NONRADIAL DIRECTION
Branch lines radially extend from a circular junction of an intermediate conductor on a ferri-magnetic disc and include one portion running circumferentially of the disc. This causes an increase in...
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3614670 |
SWITCHABLE MICROWAVE CIRCULATOR WHEREIN GROUND PLANES ARE COMPRISED OF FOILS HAVING VERTICALLY CONDUCTIVE PARTICLES
A switchable microwave circulator having ground planes comprised of thin sheets of electrical insulation that have a coating of minute separate aluminum particles on one side that provides a...
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3614675 |
ISOLATOR COMPRISING TUNED LUMPED ELEMENT CIRCULATOR
The present invention relates to an isolator having a low forward direction loss over a very wide frequency range and a sufficiently high backward loss in a desired frequency range, and having a...
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3611196 |
INTEGRATED MICROWAVE SYSTEM HAVING A HYBRID STRUCTURE WITH A NONMAGNETIC DIELECTRIC CERAMIC SUBSTRATE
An integrated microwave system having a hybrid structure using a nonmagnetic dielectric ceramic substrate consisting of a sintered ferrite having a lower Curie point than the lowest operating...
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3611197 |
YIG RESONATOR MICROSTRIP COUPLING DEVICE
A microstrip manifold providing a plurality of frequency selective outputs from a single input signal including a common input microstrip transmission line terminated at one end and a plurality of...
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3609574 |
TUNNEL DIODE AMPLIFIER
A tunnel diode amplifier circuit including a two-stage amplifier in which one of the tunnel diode stages is located one quarter of a wavelength nearer or further away from the transmission line...
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3605040 |
Y-JUNCTION CIRCULATOR WITH COMMON ARM CAPACITOR
A Y-junction strip line circulator of the lumped constant type in which a single, common capacitor tunes symmetrically with the inductance of all three circulator arms. The capacitor may be fixed...
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3594663 |
DUAL-POLARIZED DUAL-FREQUENCY COUPLER
A waveguide transition coupler having a coaxial waveguide and a first circular waveguide formed inside the center conductor of the coaxial waveguide for coupling with a second circular waveguide....
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3594664 |
SLOT-LINE CIRCULATOR
A slot-line circulator having a ferrite disc either coated on or embedded d integral with a dielectric substrate on one surface of which there is provided a narrow gap in a conductive coating to...
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3593210 |
WAVEGUIDE JUNCTION CIRCULATOR WHEREIN ALL MODES IN EACH BRANCH ARM ARE EVANESCENT
A waveguide junction circulator of the type having a resonant cavity loaded with ferrimagnetic material wherein the coupling ports consist of a length of waveguide having a cutoff frequency which...
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3585531 |
MAGNETICALLY VARIABLE MICROSTRIP DIRECTIONAL COUPLER DEPOSITED ON FERRITE SUBSTRATE
Described is a novel variable coupling, directional coupler employing parallel microstrip transmission lines deposited on a substrate of ferrite material. Variable coupling is achieved by varying a...
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