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3760304 |
SLOT LINE
This invention relates to a low loss transmission line having a slotted ml deposited or etched on a high permittivity substrate. With various sizes, shapes and configurations of slots, the...
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3758878 |
MICRO-STRIP AND STRIPLINE JUNCTION CIRCULATORS
A junction circulator having (one) microstrip or (two) stripline discs, or other geometries of ferrimagnetic material or in combination with non-ferrimagnetic insulating materials, spaced between a...
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3757272 |
STRIP TRANSMISSION LINE COUPLER
A coupling device for electrically connecting a strip transmission line to another transmission line, said device comprising a conductive shell having pressure means for forming electrically smooth...
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3757342 |
SHEET ARRAY ANTENNA STRUCTURE
Arrays wherein the radiator elements act also as shield conductors of feed lines arranged to provide cophasal interconnection of the radiators without physical transpositions, particularly...
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3754197 |
MEANDER-LINE IMPEDANCE TRANSFORMER
A microwave or UHF impedance transformer is provided which is comprised of a meander-line structure, or a hybrid meander-line structure, in which coupling between some conjugate (adjacent) turns in...
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3753162 |
MICROSTRIP FERRITE PHASE SHIFTERS HAVING TIME SEGMENTS VARYING IN LENGTH IN ACCORDANCE WITH PRESELECTED PHASE SHIFT CHARACTERISTIC
An electronically controllable RF (radio frequency) phase shifter that can be designed to provide either true time delay characteristics or constant phase versus frequency characteristics. The...
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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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3753153 |
DOUBLE PULSE BIAS STABILIZATION OF A MICROWAVE OSCILLATOR USING AN AVALANCHE DIODE OPERATIVE IN THE ANOMALOUS MODE
The operation of a microwave oscillator using an avalanche diode operative in the anomalous mode is stabilized by the use of a double pulse, direct current bias signal. The double pulse bias signal...
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3750053 |
COAXIAL TRANSMISSION LINE RF SWITCH
A transmission line switch for general use at frequencies to 400 MHz and in certain applications to 1000 MHz, featuring strip-line circuitry. Specifications heretofore met only by more expensive...
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3750013 |
MICROSTRIP PLASMA PROBE
A microstrip cavity type transmission line having a lossy center conductor provides attenuation and reflection coefficient information in response to the disturbing effects of proximate conducting...
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3747114 |
PLANAR DIPOLE ARRAY MOUNTED ON DIELECTRIC SUBSTRATE
An improved microwave antenna system employs a flat or planar array of radiating elements and, behind it, a distribution network of feeding circuit portions. The radiating elements and distribution...
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3745488 |
MICROWAVE IMPEDANCE-MATCHING NETWORK
In preferred form, a matching network includes a transmission line comprising a pair of parallel inner conductors symmetrically located in an outer conductor enclosure for supporting odd and even...
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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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3740678 |
STRIP TRANSMISSION LINE STRUCTURES
Strip transmission line structures which feature multilayer compositions with FEP (fluorinated ethylene propylene) Teflon* (Trademark, E. I. du Pont de Nemours & Co., Inc.) and Epoxy Glass (EG) as...
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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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3737815 |
HIGH-Q BANDPASS RESONATORS UTILIZING BANDSTOP RESONATOR PAIRS
This disclosure describes high-Q bandpass resonators utilizing composite bandstop resonator pairs. The bandstop resonator pairs are formed of composite series or parallel connected realizable...
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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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3732508 |
STRIP LINE TO WAVEGUIDE TRANSITION
Apparatus is disclosed for coupling a wave transmitted between a waveguide and a strip line. In particular, the strip line is composed of a conductor, a dielectric substrate and an earth (or...
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3729694 |
STRIP TRANSMISSION LINE BROADBAND 4:1 IMPEDANCE TRANSFORMER
An electrical transformer for transforming electrical impedances in a four-to-one ratio includes a dielectric substrate having U-shaped metallized conductors deposited on opposite surfaces of the...
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3727231 |
COLLINEAR DIPOLE ANTENNA
A collinear dipole array antenna including feed means whereby the dipoles are energized in phase independent of frequency over the operating frequency range.
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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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3723912 |
CONSTANT RESISTANCE BRIDGED-T CIRCUIT USING TRANSMISSION LINE ELEMENTS
A wave-shaping network of the type in which a portion of the signal is delayed and subtracted from the signal is constructed in the constant resistance bridged-T form. Delay lines terminated in...
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3721919 |
HIGH EFFICIENCY MODE PLANAR MICROCIRCUIT HIGH FREQUENCY SIGNAL GENERATOR
An active high-efficiency-mode semiconductor diode is coupled for the generation of oscillating high frequency electromagnetic fields in a planar transmission line network, the apparatus taking the...
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3721922 |
COMPOSITE DIGITAL LOGIC MICROWAVE PHASE SHIFTER
A microwave phase shifter comprising a strip transmission or meander line associated with a ferrimagnetic toroid or ferrimagnetic substrate divided into discrete operative regions. These discrete...
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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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3715631 |
RADIO-FREQUENCY LINE
A radio-frequency line suitable for use as an electrical supply lead to semiconductor components, comprising a semiconductor body containing at least one semiconductor component and a strip line...
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3715692 |
MICROSTRIP-SLOT LINE PHASE SHIFTER
A microwave-integrated-circuit phase shifter comprising a dielectric subste such as ferrite, one side being metallized to form a slot line and the other being metallized to form a parallelling...
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3713165 |
ANTENNA FOR STRIP TRANSMISSION LINES
An antenna for strip transmission lines has slots of different lengths in the planar outer conductors. The slots are situated so that they intersect the planar inner conductor and each slot is...
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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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3707688 |
HIGH FREQUENCY GYROMAGNETIC DEVICE EMPLOYING SLOT TRANSMISSION LINE
A high frequency gyromagnetic electromagnetic wave transmission device has a symmetric structure including planar high frequency energy conductors defining a wave guiding slot, the conductors being...
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3703604 |
FLAT CONDUCTOR TRANSMISSION CABLE
A flat shielded cable comprising a plurality of parallel spaced-apart signal conductors in a first plane and a shield member in the form of a conductive ground plane facing said signal conductors...
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3702445 |
MICROSTRIP RING-SHAPED RESONATORS AND MICROWAVE GENERATORS USING THE SAME
A microwave resonator comprising an insulating substrate plate with a metallized coating entirely covering one of its faces and a metallized ring on its other face, and a microstrip transmission...
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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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3699475 |
DOUBLE-MODE TUNED MICROWAVE OSCILLATOR
Two lengths of short circuited transmission lines that are defined by their odd and even-mode characteristics are connected to a microwave transistor to provide the external feedback network of a...
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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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3696433 |
RESONANT SLOT ANTENNA STRUCTURE
A resonant slot antenna composed of one or more elongated coaxial type radiating elements, each having an inner conductor supported within an outer conductor, the outer conductor having...
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3693118 |
VARIABLE TUNING ARRANGEMENT FOR A STRIP TRANSMISSION LINE CIRCUIT
A tuning arrangement is provided for a strip transmission line circuit of the type including a ground plane or conductor and a narrow conductor spaced from the ground plane by a dielectric...
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3691563 |
DUAL BAND STRIPLINE ANTENNA
A dual band antenna is disclosed in which the radiating elements for each band are slots in a conductive sheet and in which the slots are fed by wave guides and stripline distribution means. The...
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3686624 |
COAX LINE TO STRIP LINE END LAUNCHER
A connector for coupling a coaxial transmission line to a strip transmission line includes a coaxial structure having an inner conductor projecting beyond the end of the connector a predetermined...
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3683298 |
MICROWAVE APPARATUS USING MULTIPLE AVALANCHE DIODES OPERATING IN THE ANOMALOUS MODE
The terminals of a first avalanche diode are shunt coupled to a microwave transmission line. The terminals of opposite polarity of at least one other avalanche diode are also shunt coupled to the...
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3681713 |
HIGH Q CIRCUITS ON CERAMIC SUBSTRATES
High Q circuit for operation in the UHF band comprising a ceramic substrate having on one major surface a pattern of metal particle-glass frit conductors having a coating of copper thereon, and on...
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3680002 |
MICROSTRIP MICROWAVE OSCILLATORS
A microwave oscillator in microstrip form is single-tuned simultaneously at both fundamental and second harmonic frequencies to enhance efficient generation of fundamental frequency output voltage....
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3678414 |
MICROSTRIP DIODE HIGH ISOLATION SWITCH
A shield enclosed microstrip circuit microwave multi-diode switch with undesired waveguide signal transmission minimized. Diodes are spaced and connective microstrip sections dimensioned for...
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3678433 |
RF REJECTION FILTER
An RF suppression filter using several quarter RF wavelength long strips in parallel that are open-ended to form an RF ground at their common tie-points in the form of a section of conductive line....
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3678395 |
BROADBAND PLANAR BALANCED CIRCUIT
A broadband planar balanced circuit comprising the junction of slot-line and coplanar-line transmission media. The coplanar and slot lines are formed on one side of a conductively covered...
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3678418 |
PRINTED CIRCUIT BALUN
A printed circuit balun includes a first relatively broad conductor on a first surface of a dielectric substrate which conductor first-mentioned from an unbalanced end of the balun to a point near...
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3673509 |
INTERDIGITAL PREAMPLIFIER
A bandpass preamplifier for isolating a narrow frequency band, especially in the VHF or UHF range, from interference or out-of-band radiation generated by high energy transmitters operating at...
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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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3668553 |
DIGITALLY TUNED STRIPLINE OSCILLATOR
A digitally tuned microwave microstrip oscillator is disclosed. The oscillator includes a resonant section of stripline having a Gunn diode connected between the stripline and ground plane at a low...
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3662318 |
TRANSITION DEVICE BETWEEN COAXIAL AND MICROSTRIP LINES
A conversion device for an ultra-high frequency coaxial line and a metal strip without welding comprises a brass support body in which a base plate, held tight by screws forces the metal strip...
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