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5497137 |
Chip type transformer
A balun transformer (10) may be constructed as a chip type transformer including a laminate (12) having first through fifth dielectric substrates (14a), (14b), (14c), (14d), and (14e) to be...
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5465417 |
Integrated barium-ferrite tuned mixer for spectrum analysis to 60 GHz
A routing barium-ferrite tuned resonator filter integrated with an image-enhanced, single-balanced mixer. The barium-ferrite tuned resonator filter is preferably a four-sphere barium-ferrite tuned...
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5455545 |
Compact low-loss microwave balun
A microwave balun is constructed by combining a four-transmission-line branch-line coupler with a single-transmission-line delay element. This construction results in a simplified, compact...
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5451914 |
Multi-layer radio frequency transformer
A transformer (300) includes several layers of substrate (202, 204, 206, 208). Sandwiched between first set of layers (204 and 206) is a runner that forms two interconnected spirals (323 and 324)....
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5450046 |
Composite microwave circuit module assembly and its connection structure
A composite microwave circuit module assembly has a dielectric substrate which is formed by a lower layer, an intermediate layer and an upper layer. The lower layer and the upper layer include a...
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5448135 |
Apparatus for coupling electromagnetic radiation from a waveguide to an electrodeless lamp
Apparatus for coupling electromagnetic energy to electrodeless lamps. A waveguide having one end connected to a source of electromagnetic radiation was closed at the second opposite end. A coupling...
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5440279 |
Electromagnetic radiation converter
An electromagnetic radiation converter for receiving and converting microwave signals having a circular or linear polarization. The converter comprises a waveguide for transmitting both circularly...
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5434456 |
Lumped transmission line avalanche pulser
A lumped linear avalanche transistor pulse generator utilizes stacked transistors in parallel within a stage and couples a plurality of said stages, in series with increasing zener diode limited...
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5434548 |
Coaxial-waveguide rotary coupling assemblage
A coaxial-waveguide assemblage is disclosed herein of the invention includes a first coaxial transmission line having a first inner and a first outer conductor. The inventive assemblage further...
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5428840 |
Monolithic double balanced microstrip mixer with flat conversion loss
A double balanced microstrip mixer circuit for a monolithic microwave integrated circuit comprising a diode ring modulator coupled to a first balun for supplying radio frequency signals to the...
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5428838 |
Diode mixer implemented in a planar monolithic IC
A monolithic diode star mixer incorporating an RF balun and a local oscillator balun in which a center microstrip conductor for each of the baluns is configured between parallel strip transmission...
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5426400 |
Broadband coplanar waveguide to slotline transition having a slot cavity
A broadband coplanar waveguide to slotline transition for transferring radio frequency energy having a wavelength, λ, comprises: 1) a dielectric substrate having a first planar surface; an...
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5422609 |
Uniplanar microstrip to slotline transition
A uniplanar microstrip to slotline transition is provided which includes a ubstrate having opposed first and second sides. A first electrically conductive layer is joined to the first side of the...
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5422611 |
Waveguide-microstripline transformer
A waveguide-microstripline transformer comprises a waveguide which is closed at one end and has a slit at a side wall thereof, a dielectric substrate plate placed on the slit, a microstripline...
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5418428 |
Waveguide system with support for magnetrons
A support for a waveguide system includes a support body, a receiver formed at one side portion of the support body, a control plates selectively coupled to the receiver and adapted to control the...
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5416451 |
Circuit and method for balun compensation
A novel circuit and method for providing amplitude and phase compensation for a balun in order to provide first and second voltage signals that are balanced has been provided. The compensation is...
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5414394 |
Microwave frequency device comprising at least a transition between a transmission line integrated on a substrate and a waveguide
Microwave frequency device comprising at least a transition between a transmission line (24) integrated on a substrate (23) of a hard material, disposed in a first microwave frequency cavity (31),...
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5408188 |
High frequency wafer probe including open end waveguide
A high frequency wafer probe for measuring characteristics of a device operating in a high frequency range includes a waveguide serving as a grounding conductor of the probe, an end of which is...
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5396202 |
Assembly and method for coupling a microstrip circuit to a cavity resonator
An assembly and a method is provided for coupling a microstrip circuit to a cavity resonator. The assembly includes a substrate, a microstrip circuit fabricated on one side of the substrate plate,...
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5379006 |
Wideband (DC to GHz) balun
An ultra wide band DC to GHz balun consisting of transmission lines, a small inverting junction, and an RC network connecting the shields of the balanced load transmission lines such that an...
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5374938 |
Waveguide to microstrip conversion means in a satellite broadcasting adaptor
A waveguide to microstrip converter allowing size reduction as well as providing good cross polar discrimination and input VSWR characteristic. The waveguide to microstrip converter includes a...
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5369795 |
High frequency transformer and mixer using the same
The present invention provides a high frequency transformer capable of stable operation from DC to high frequency. Additionally the present invention provides a mixer with low insertion loss and...
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5369380 |
Microwave connector
A microwave connector comprises two substrates arranged in orthogonal planes. A first substrate (2) is formed as a microstrip system (8) with a microstrip component (3) connected via a quarter...
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5369367 |
Wideband coax-to-TM.sub.01 converter and testing system using the same
A wideband convertor for mode conversion between a TEM coaxial mode in coaxial line and the TM 01 circular waveguide mode in circular waveguide. The convertor takes advantage of the somewhat...
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5361049 |
Transition from double-ridge waveguide to suspended substrate
A metallic housing encloses a suspended substrate circuit and is arranged so that the waveguide input/output port within the housing has double-ridge transitions to the suspended substrate circuit.
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5361050 |
Balanced split ring resonator
A bandpass filter (40) includes a first microstrip split-ring resonator (12), having at least a first edge and a second edge, the first edge having a gap (20), and an input The bandpass filter (40)...
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5359336 |
Circularly polarized wave generator and circularly polarized wave receiving antenna
A circularly polarized generator for transmitting circularly polarized transmitted electromagnetic waves and a circularly polarized wave reception antenna for receiving the electromagnetic waves is...
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5359339 |
Broadband short-horn antenna
A short horn antenna (10) adapted for array use includes a rectangular waveguide with broad upper (12) and lower (14) walls and narrow side walls (16, 18), defining a radiating aperture (20) and a...
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5357223 |
Connection device between an antenna and a microelectronic enclosure
An electronic device includes an antenna enclosure provided with a circuit on which an antenna is etched and a balun circuit for feeding the antenna, itself connected to a microelectronic enclosure...
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5355104 |
Phase shift device using voltage-controllable dielectrics
A length of strip transmission line uses two symmetrically spaced center conductors between two groundplanes. These conductive strips produce an even-mode electric field between the two...
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5349365 |
Quadrifilar helix antenna
An improved helix antenna including a single unitary antenna having plural radiating elements extending radially from a common junction. A microstrip balun is connected to the plural antenna...
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5331332 |
Waveguide coupling structure
A structure (20) coupling a microwave signal to a waveguide (30) is provided. Transmission walls (26) are supported in the waveguide to only partially surround a probe (22) extending longitudinally...
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5311153 |
Integrated waveguide/stripline transition
An integrated waveguide/stripline signal transition structure and method for fabricating the same are provided for allowing high frequency signal transitions. The signal transition structure...
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5311154 |
Waveguide converter for transmitting input radio wave with proceeding direction thereof changed to waveguide path
A bend portion is provided on the inside of a waveguide main body for bending a proceeding direction of a radio wave from a waveguide on the side of a primary feed horn. The radio wave is...
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5305000 |
Low loss electromagnetic energy probe
A low noise block feedhorn system includes a waveguide antenna for receiving RF signals. The transition element is a waveguide to coaxial line probe assembly which includes a high conductivity...
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5304959 |
Planar microstrip balun
A planar balun including first and second spaced parallel elongated conductors on one surface of a ceramic, plastic, polymer, synthetic fiber or a composite substrate and a third elongated...
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5296823 |
Wideband transmission line balun
A wideband transmission line balun divides an input signal equally between a single-conductor transmission line and a polarity reversing, two-conductor transmission line thereby providing balanced...
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5280253 |
Cylindrical waveguide-to-microstrip line converter
A microwave circuit includes a concentric-circle-like prominence (7) formed on a contact surface which is on the side of a metal body (3) serving as an external conductor of a coaxial line and...
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5278575 |
Broadband microstrip to slotline transition
A broadband transition between microstrip transmission line and slotline transmission line. The geometry of integrating the two transmission lines results in a broadband microstrip shunt circuit...
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5276410 |
Circular to linear polarization converter
A converter for converting circularly polarized waves in a round waveguide into linearly polarized waves in a rectangular waveguide has two probes and a transmission line pattern all of which are...
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5262740 |
Microstrip transformer apparatus
A transmission line structure operates as a transformer and includes at least two intertwined serpentine planar transmission lines positioned on a substrate with the lines repeatedly crossing each...
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5262739 |
Waveguide adaptors
A waveguide adaptor or transition for interfacing a microwave waveguide to a coplanar transmission line or electronic device is disclosed. The adaptor includes a waveguide section having an...
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5258730 |
Microstrip transmission line substrate to substrate transition
A microstrip transmission line substrate to substrate transition is provi comprising a pair of spaced-apart dielectric substrates having facing inner surfaces and ground planes on the non-facing...
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5258727 |
Microribbon/waveguide transition for plate type antenna
The present invention relates to a microribbon/wave guide line transition, especially between an antenna (1) of the plate antenna type, with radiating elements (3) and feed lines (4) printed on a...
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5235300 |
Millimeter module package
A module package for unpackaged millimeter wave or microwave devices allows the device to be dropped into a cavity formed in a housing and then hermetically sealed therein. Employing dielectric...
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5227744 |
Transition element between electromagnetic waveguides, notably between a circular waveguide and a coaxial waveguide
A transition element for electromagnetic waveguides of the type designed to provide for the transition between a circular waveguide and a coaxial waveguide, constituted by a circular external guide...
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5225797 |
Dielectric waveguide-to-coplanar transmission line transitions
Dielectric waveguide-to-transmission line transition structures are disclosed which can be used to interface low loss dielectric waveguides with integrated electric circuits for operation in...
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5212461 |
Orthomode transducer between a circular waveguide and a coaxial cable
The orthomode transducer between a circular waveguide and a coaxial cable consists of a circular waveguide section, into which two probes externally connected to coaxial connectors penetrate. The...
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5202648 |
Hermetic waveguide-to-microstrip transition module
A waveguide-to-microstrip transition module transmits captured electromagnetic energy between a waveguide and signal processing circuitry. The module is an assembly of a base which includes at...
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5198786 |
Waveguide transition circuit
A transition circuit includes a conductive pin; a first dielectric member disposed about a first portion of the conductive pin; and a second dielectric member disposed about a second, different...
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