|
Match
|
Document |
Document Title |
|
|
4460897 |
Scanning phased array antenna system
The present invention relates to a phased array antenna system which transmits a local oscillator signal in a scanable spotbeam from a first array of feed elements (12 l -12 m ) via a reflector or...
|
|
|
4458222 |
Waveguide to microstrip coupler wherein microstrip carries D.C. biased component
An apparatus for coupling a waveguide structure to a printed circuit transmission line connected to a solid state device requiring a DC bias comprising: a hollow waveguide connector; a base mounted...
|
|
|
4458217 |
Slot-coupled microwave diplexer and coupler therefor
A compact power coupler comprises a first waveguide short-circuited at one end, a resonant cavity slot-coupled to the shorted end of the first waveguide, and a coaxial transmission line coupled to...
|
|
|
4453142 |
Microstrip to waveguide transition
A microstrip to waveguide transition is achieved by passing a portion of a microstrip circuit through an aperture in a transverse wall of a waveguide. The aperture is dimensioned and positioned so...
|
|
|
4435848 |
Stripline microwave balanced mixer circuit
A stripline tuning fork microwave balanced mixer circuit which includes two diodes (21, 22) and a differential transformer (61) whereby matching is accomplished in the differential transformer (61)...
|
|
|
4430758 |
Suspended-substrate co-planar stripline mixer
A coplanar strip line compensated balun coupled to a double balanced strip line mixer circuit where the strip lines of the balun have a predetermined radius of curvature and adjusted gap widths to...
|
|
|
4424500 |
Beam forming network for a multibeam antenna
A beam forming network comprising multi-deck circuitry with a plurality of levels within each deck formed by asymmetric striplines having a multiplicity of inner conductor levels. Interlevel...
|
|
|
4419635 |
Slotline reverse-phased hybrid ring coupler
A slotline directional coupler is disclosed that introduces a 180° phase reversal in one of the arms of the coupler in order to isolate opposite ports of the coupler. One of the arms of the...
|
|
|
4409566 |
Coaxial line to waveguide coupler
A coaxial transmission line to waveguide transition is formed of two waveguide portions disposed on opposing sides of, and enclosing a portion of, a flat plate structure. The enclosed portion of...
|
|
|
4399562 |
Full balun mixer
Microwave circuit layout structure is disclosed for a diode mixer frequency converter. Each mixer port is provided by balun circuitry, and the diodes are isolated from, and on the opposite side of...
|
|
|
4392250 |
Symmetric microwave mixer
Microwave circuit layout structure is disclosed for a diode mixer bridge. The circuit layout structure is compact and symmetric, and enables short orthogonal equal length leads from a diode ring...
|
|
|
4392251 |
Symmetric microwave mixer with coplanar diode connection
Microwave circuit layout structure is disclosed for a diode mixer frequency converter. The circuit layout structure is compact and symmetric, and enables coplanar diode lead connection.
|
|
|
4383227 |
Suspended microstrip circuit for the propagation of an odd-wave mode
A suspended microstrip circuit having a dielectric substrate arranged in parallel between two parallel metal planes. First and second strip conductors are provided on the substrate, the second...
|
|
|
4380829 |
Simplified double balanced frequency converter
A simplified, compact, flat microwave frequency converter assembly utilizes a flat quad diode bridge, and has two pairs of opposed flat conductors, each with a respective one of the opposed...
|
|
|
4380831 |
Symmetric microwave mixer with improved isolation
Microwave circuit layout structure is disclosed for a diode quad mixer frequency converter with separate, isolated sections, each supplied by a respective half of dual balun port structure. The...
|
|
|
4375699 |
Microwave frequency converter with dual balun port
A microwave frequency converter is provided with a diode mixer bridge having a balanced port connected to a dual balun. The dual balun is provided by two pairs of balanced secondary conductors...
|
|
|
4375052 |
Polarization rotatable antenna feed
A wave guide of an antenna feed assembly has a wave polarization rotary section comprising a plurality of closely spaced conductive pins extending across the diameter of the wave guide. A first...
|
|
|
4361818 |
Balanced converter for microwave range
A balanced converter for the microwave range which allows simple construction of modulators and similar electrical assemblies which have particularly good properties as far as noise level and...
|
|
|
4359781 |
Balun coupled microwave frequency converter with single pair of diodes
A balun coupled microwave frequency converter is provided by a mixer using a single diode pair with one port balanced and the other port unbalanced. The balanced port is provided by first and...
|
|
|
4359782 |
Microwave mixer with linking juxtaposed balun port
Microwave circuit layout and structure is disclosed for a diode bridge mixer. Linking structure provides interconnection from coplanar sections of balanced first and second conductors to...
|
|
|
4355421 |
Broadband mixer with coplanar balun
An improved broadband mixer includes a first balun (11) with a first signal port (12), a second balun (14) with a second signal port (15), a third balun (17) with a third signal port (18), and a...
|
|
|
4349790 |
Coax to rectangular waveguide coupler
A coaxial transmission line is coupled to a dielectrically loaded rectangular waveguide by an E-plane probe which extends through a broad wall of the waveguide and into a slot in the body of...
|
|
|
4298850 |
Double ridge waveguide rotary joint
An I type (straight) double ridge waveguide rotary joint is provided by connecting input and output sections of double ridge waveguide, oriented along a common axis, to opposite ends of a coaxial...
|
|
|
4293956 |
Double-balanced mixer
A double-balanced mixer device including a planar substrate selectively plated on both sides to form certain mixer component parts and including a pair of quarter wavelength narrow strips extending...
|
|
|
4291278 |
Planar microwave integrated circuit power combiner
A broadband, low loss, microwave integrated circuit power combiner for field effect transistors and other solid state amplifiers has a single metallized MIC substrate contained within a waveguide...
|
|
|
4291415 |
Microwave integrated circuit double balanced mixer
Double-balanced mixers of the star-configuration type for microwave-frequency electromagnetic waves have a balanced four-wire line realized with a pair of wires on each side of a dielectric...
|
|
|
4276655 |
Integrated circuit planar high frequency mixer
The invention is a cross-bar signal mixer suitable for low-cost high-yield mass production. The mixer configuration consists of a balanced planar taper section supported upon a dielectric substrate...
|
|
|
4263568 |
Large scale low-loss combiner and divider
A radio frequency power divider/combiner having a pair of conductive plates between which the dominant E-type mode is produced by symmetrical excitation at a central point preferably by means of a...
|
|
|
4260963 |
4:1 Balun
A balun is constructed by rolling a strip of flexible dielectric into a loop which has conductive strips on each face.
|
|
|
4260964 |
Printed circuit waveguide to microstrip transition
A waveguide to microstrip transition for transferring guided electromagne signals from dominant mode rectangular waveguide to microstrip line and vice versa. A microstrip printed circuit card is...
|
|
|
4245356 |
Frequency translator
A planar balun coupled frequency translator (upconverter or downconverter, is illustrated in various configurations for providing both full-wave and half-wave signal frequency conversion. As...
|
|
|
4240052 |
Balun filter apparatus
The present invention uses two interconnected baluns with the balanced output of one feeding a balanced input of the other. When this filter is used in conjunction with a signal frequency...
|
|
|
4224572 |
Broadband doubly balanced mixer having improved termination insensitivity characteristics
A diode modulator type electrical mixer network has at least two hybrids of transmission line construction, interconnected by means of two sets of four or more diodes arranged in bridge circuit...
|
|
|
4204168 |
Signal converter using a quad diode race
A signal converter, and more particularly, a mixer includes a quad diode race or bridge having a first signal supplied to a first pair of input ports in a balanced state, and a second signal...
|
|
|
4193048 |
Balun transformer
A balun transformer of conductor material formed on a printed circuit board substrate is fabricated of a pair of conductor lengths, each having first and second ends. The conductors are located on...
|
|
|
4189691 |
Microwave terminating structure
A microwave terminating structure is disclosed wherein a strip conductor formed on a dielectric support has one end adapted for coupling to a transmission line being terminated and a resistive...
|
|
|
4186352 |
Signal converter apparatus
Microstrip technology is utilized in illustrating new and improved versions of baluns, hybrid junctions and half-wave balanced mixers and full-wave double balanced mixers.
|
|
|
4160210 |
Printed circuit impedance transformation network with an integral spark gap
A printed circuit board including a serpentine conductor formed thereon is mounted on a grounded metal chasis of the receiver's tuner so that the serpentine conductor and the grounded chassis form...
|
|
|
4157516 |
Wave guide to microstrip transition
A wave guide to microstrip transition is disclosed in which the substrate of the microstrip line is arranged parallel to and in the longitudinal direction of the wave guide. The microstrip...
|
|
|
4152680 |
Broadband frequency divider using microwave varactors
A broad band frequency divider in which microstrip or stripline transmission lines and more than one microwave varactor diodes are interconnected to form a circuit which is resonant at a frequency...
|
|
|
4152653 |
Integrated mixer arrangement
A single balanced mixer for use with a superheterodyne receiver or the like comprises an integrated structure characterized by a pair of opposed capacitive plates, a first mixing diode connected...
|
|
|
4144506 |
Coaxial line to double ridge waveguide transition
A novel structure in a coaxial to waveguide transmission line transition includes a waveguide section having longitudinally extending ridges on two opposed walls; a metal impedance transition...
|
|
|
4139828 |
Transition device between a coaxial line and a wave-guide
The invention covers transition devices between a coaxial line and a wave-guide. The central core of the coaxial line enters a transverse partial partition in the wave-guide through an opening in...
|
|
|
4135170 |
Junction between two microwave transmission lines of different field structures
A microstrip line, formed by a conductor strip on one side of a dielectric substrate and by a ground-plane layer on the other side thereof, is electrically coupled to another microwave-transmission...
|
|
|
4125810 |
Broadband high frequency baluns and mixer
A double slot balun has two pairs of coplanar, electric conductive sheets in a superposed, spaced, electrically insulated relation on opposite planar surfaces of a dielectric substrate forming two...
|
|
|
4123730 |
Slot transmission line coupling technique using a capacitor
A novel technique for coupling microwave signals to a slot transmission line and for effecting a simultaneous impedance transformation. One lead of a microwave capacitor, connects to a source of...
|
|
|
4085391 |
Micro-strip to a slotted line transducer
Planar transducer for microwaves from a micro-strip line to a slotted line, in which a microwave strip line junction in the form of a "Y" is disposed on the upper side of a substrate, one of the...
|
|
|
4063176 |
Broadband high frequency mixer
A broadband mixer has two separate tapered ground plane microstrip baluns associated with a first signal port and two separate tapered ground plane microstrip baluns associated with a second signal...
|
|
|
4052683 |
Microwave device
A microstrip waveguide transition where the substrate is arranged in a symmetry plane of waveguide and is situated parallel to the field lines of the electrical field and the longitudinal axis of...
|
|
|
4032850 |
Coaxial balun with doubly balanced heterodyne converter
A coaxial line has a conductive surrounding shield connected from a first to a second point thereon. The outer conductor of the coaxial line shield is discontinuous at an intermediate point inside...
|