Bizarre Patents
A simulation environment for the sport of boxing utilizing a robotic machine interface system which carries a person
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4521747 | Suspended stripline varactor-tuned Gunn oscillator Improved output power performance is obtained in a millimeter-wave integrated-circuit (MIC) voltage-controlled oscillator by forming an output circuit and a bias input circuit in a suspended stripline configuration, which is subject to relatively low loss... | 06/04/1985 |
| 4518931 | Transistor oscillator/frequency doubler with optimized harmonic feedback A microwave transistor oscillator/doubler comprising a Field-Effect Transistor with Terminals G, D and S in combination with a coupling network connected to the terminals G, D and S and composed of microstrip lines with lengths equal to a quarter waveleng... | 05/21/1985 |
| 4514707 | Dielectric resonator controlled planar IMPATT diode oscillator An IMPATT diode oscillator wherein the diode is coupled to a first transmission line in turn coupled to a bias port at one end and to a coupled line transformer formed with a second transmission line at the other. A stabilizing load is coupled to the firs... | 04/30/1985 |
| 4511860 | Planar microwave oscillator mounted on a dielectric cavity A planar oscillator (9, 109) having a dielectric cavity (25, 125) and which is operative at microwave frequencies, said oscillator consisting of a dielectric material base (10, 110) one surface of which has, superposed thereto, a continuous layer (11,111)... | 04/16/1985 |
| 4503404 | Primed microwave oscillator A primed oscillator for microwave amplification includes a single tank conductor (16) coupled to a coupling conductor (17) by an interdigitated coupler (26). The coupling conductor (17) is connected to the cathode of an IMPATT diode (22) which is triggere... | 03/05/1985 |
| 4500854 | Voltage-controlled RF oscillator employing wideband tunable LC resonator Stray capacitance is reduced in a wideband tunable oscillator network by arranging the resonant circuit as one or more series circuit branches wherein a variable capacitance such as a varactor diode is interposed between two substantially identical induct... | 02/19/1985 |
| 4494086 | Transmission line oscillator having independently adjustable Q and input resistance A transmission line microwave oscillator having two degrees of freedom wherein the real portion, Rin, of the input impedence seen by the active device is adjustable by changing the coupling coefficient between and active device and a resonator ... | 01/15/1985 |
| 4480233 | Planar multiple oscillator circuit At least two oscillators (20) are power combined using planar transmission lines, e.g., microstrip, stripline, or suspended substrate. A portion (42) of each oscillator (20) is preferably implemented in suspended substrate while an impedance matching port... | 10/30/1984 |
| 4477788 | Dielectric resonator tuner and mechanical mounting system A combined mounting and tuning structure for a dielectric resonator comprised of a stack of a dielectric resonator body, a resilient body of dielectric material and an electrical tuning conductor. A fastening means preferably in the form of a dielectric s... | 10/16/1984 |
| 4445097 | Microstrip transistor oscillator with dielectric resonator stabilization A device using a dielectric resonator with a very low temperature coefficient in a very high frequency transistor oscillator (3 to 10 GHz) so as to benefit both from the very high power available and the maximum frequency stabilization due to the resonato... | 04/24/1984 |
| 4431974 | Easily tuned IMPATT diode module An improved microwave circuit is disclosed for enabling impedance tuning for power coupling in IMPATT diode and other similar oscillator and amplifier circuits. An electrically conductive support plate forming a ground plane is machined to form a channel ... | 02/14/1984 |
| 4426628 | Millimeter wave oscillator with enhanced dielectric coupler A low cost arrangement for a millimeter wave solid state diode oscillator, hich obviates precise machining and uses a dielectric transmission line associated with a resonant cavity. Coupling and impedance matching are greatly facilitated by a conductive st... | 01/17/1984 |
| 4354165 | Time-delay-triggered TRAPATT oscillator having delay line with progressively increasing impedance A time-delay triggered TRAPATT oscillator in which the delay line impedance progressively increases from the diode end to a trigger element. Thus, all reflections except those from the trigger element are negative-going and help to reduce the rise in diod... | 10/12/1982 |
| 4348646 | Time-delay-triggered TRAPATT oscillator with directional filter A time-delay-triggered TRAPATT oscillator comprising a length of delay line with a TRAPATT diode at one end and a matching filter at the other end, and a constant resistance directional filter at the output end of the matching filter.... | 09/07/1982 |
| 4331940 | Solid-state MIC oscillator A solid-state MIC oscillator in the form of a planar transmission circuit has a band rejection filter as a load circuit of an oscillation device. The band rejection filter is a resonator coupled to a transmission line which connects the oscillation device... | 05/25/1982 |
| 4323855 | MIC Combiner using unmatched diodes In a microstrip circuit having dual diode driven, independently oscillati half-wave open ring resonating sections, partially coupled quarter-wave ring sections are provided to permit matching and tuning of diodes having dissimilar negative impedances. Th... | 04/06/1982 |
| 4307352 | Micro-strip oscillator with dielectric resonator A microwave oscillator circuit comprises a micro-strip line having a substrate of a dielectric material, a semiconductor such as a Gunn diode or an FET, and a dielectric resonator connected to the micro-strip line as a resonator circuit. A hole is formed ... | 12/22/1981 |
| 4264881 | Microwave device provided with a 1/2 lambda resonator A microwave device is disclosed comprising a microstrip line pattern including an open ring forming a 1/2λ resonator having a narrow gap in which the electromagnetic field is closely tied to the ring.... | 04/28/1981 |
| 4259647 | Millimeter wave image guide integrated oscillator A millimeter wave integrated oscillator circuit utilizing an active device uch as an IMPATT or Gunn diode device located in a metallized dielectric cavity which is an extension of a half-height rectangular cross-sectional boron nitride image guide having a... | 03/31/1981 |
| 4232277 | Microwave oscillator for microwave integrated circuit applications Disclosed is a means for obtaining a high Q oscillator which is compact and s adapted to be readily incorporated into known forms of microwave integrated circuits, e.g. a parametric amplifier. The oscillator which for example may comprise a pump oscillator... | 11/04/1980 |
| 4185252 | Microstrip open ring resonator oscillators A microstrip circuit which features a pair of open ring resonators sections adapted to oscillate independently in their even mode. In a preferred form, the ring resonator sections are each driven by a TRAPATT diode, and include a load circuit which combin... | 01/22/1980 |
| 4118672 | Attenuation equalizer having constant resistance An attenuation equalizer, having a constant resistance is comprised of a distributed constant line having a given impedance and electrical length connected to both the input and output terminals of the equalizer, and an additional constant line having a g... | 10/03/1978 |
| 4058776 | Bias circuit for avalanche diodes A bias circuit for a large pulse-width, broad-bandwidth radio-frequency avalanche device comprising a power supply coupled to the device through a bias line. The bias circuit includes a resistive network shunted across the bias line and ground to dampen s... | 11/15/1977 |
| 4034313 | Microstrip gunn oscillator with varactor tuning A microwave oscillator arrangement comprising a microstrip resonator, a Gunn oscillator mounted outside the substrate of the resonator, a varactor diode connected in series with the Gunn oscillator and the resonator, and means for applying adjustable bias... | 07/05/1977 |
| 4016506 | Dielectric waveguide oscillator A dielectric waveguide oscillator includes a microwave producing diode, a strip resonator, and a dielectric waveguide butted against one end of the strip resonator.... | 04/05/1977 |
| 4006425 | Dielectric image guide integrated mixer/detector circuit Disclosed is a dielectric image guide integrated circuit including first and second sections of image guide of preselected cross-sectional areas joined by an image guide transition section of variable cross-sectional area and all mounted on the surface of... | 02/01/1977 |
| 4005372 | Frequency tunable microwave apparatus having a variable impedance hybrid idler circuit A frequency tunable microwave apparatus including a semiconductor TRAPATT diode generating a microwave signal at its fundamental, second and third harmonic frequencies. Energy is extracted at the second harmonic frequency and a certain impedance loading i... | 01/25/1977 |
| 3996529 | Varactor tuning apparatus for a strip transmission line device A varactor tuning apparatus for tuning a strip transmission line radio frequency device, wherein the device having predetermined operating characteristics includes an active element such as an avalanche diode and a resonant conductive strip section. The t... | 12/07/1976 |
| 3986153 | Active millimeter-wave integrated circuit An active millimeter wave integrated circuit including a thin non-metallic waveguiding layer mounted on an image plane and having an opening therein which exposes a given area of the image plane. An active solid state device, such as a millimeter wave dio... | 10/12/1976 |
| 3984787 | Two-inductor varactor tunable solid-state microwave oscillator A two-inductor varactor tunable solid-state microwave oscillator comprising a series tunable circuit wherein one inductor is serially connected with a negative resistance active element, an impedance load, and a varactor. The circuit is tuned by changing ... | 10/05/1976 |
| 3969689 | Dual diode oscillator and airstrip transmission line apparatus Novel apparatus is provided which permits the combination of the peak pulse power from a pair of avalanche diode oscillators, each diode driving a respective one of two symmetrically suspended airstrip transmission lines which are coupled to a common outp... | 07/13/1976 |
| 3952262 | Balanced signal processing circuit The invention utilizes a four-port hybrid junction in which a signal to be amplified or a low level stable reference signal is coupled to a first port in which a pair of similar or matched amplifiers or oscillators are coupled to the respective second and... | 04/20/1976 |
