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7622999 |
Electromagnetic-wave oscillator
An electromagnetic-wave oscillator includes a substrate, an EMW oscillating unit including a gain portion, an EMW resonance portion, an EMW radiating portion, and a ground (GND) portion, and a...
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7545225 |
Regeneration device for rotary traveling wave oscillator
An oscillator is described. The oscillator includes segments of two-conductor transmission line being connected together by an odd number of connection means to form a closed loop. A plurality of...
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7538628 |
Harmonic oscillator using transmission line resonator
A harmonic oscillator comprises a transmission line resonator in which an oscillation frequency depends on an electrical length of a transmission line and both ends of the transmission line are...
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7515007 |
Integrated dielectric resonator filter and clock extraction device using the same
Provided are an integrated dielectric resonator filter and a clock extraction device using the integrated dielectric resonator filter. The integrated dielectric resonator filter includes: a...
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7492230 |
Method and apparatus for effecting high-frequency amplification or oscillation
An apparatus includes a distributed resonant tunneling section with a plurality of inductive portions that are coupled in series with each other between first and second nodes, such that a...
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7463104 |
Frequency tunable oscillator
There is provided a frequency tunable oscillator that has less degradation of oscillation characteristics due to a parasitic reactance component or the like without mounting therein a lumped...
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7365612 |
Low noise, hybrid tuned wideband voltage controlled oscillator
An oscillator comprising an active device having first, second and third terminals, a plurality of micro-stripline resonators coupled together to form a coupled-resonator network, the...
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7339440 |
Nonlinear pulse oscillator methods and apparatus
Methods and apparatus for implementing stable self-starting and self-sustaining electrical nonlinear pulse (e.g., soliton, cnoidal wave, or quasi-soliton) oscillators. In one example, a nonlinear...
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7323947 |
Oscillator circuit
An oscillator circuit includes first and second transistors forming a differential pair, an output combiner connected to first terminal sides of the first and second transistors, and a current...
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7274263 |
Microstrip stabilized quantum well resonance-tunneling generator for millimeter and submillimeter wavelength range
A microstrip stabilized quantum well resonance-tunneling generator which generates electromagnetic waves for millimeter and submillimeter wavelength range is provided The generator includes a...
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7265642 |
User-definable thermal drift voltage control oscillator
A voltage controlled oscillator that includes a slot-cut-microstrip-line coupled between a resonator, a tuning diode network and an active device and being operable to act as a common-coupling...
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7236060 |
Electronic pulse generator and oscillator
Distributed traveling wave oscillator circuitry is disclosed. The oscillator circuitry includes a signal path, a plurality of active switching means, and a direction promoting means. The signal...
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7218180 |
Low noise oscillator
A low noise oscillator constructed using a rotary traveling wave oscillator. The conductors of the rotary traveling wave oscillator provide at any tap position a pair of oppositely phased...
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7206371 |
Transmitting and receiving apparatus capable of the suppression of the microphonic noise in digital transmission system
A transmitting and receiving apparatus including a modulating circuit for modulating an input digital data; a first frequency converting circuit for converting a signal output from the modulating...
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7167057 |
Microwave oscillator
A microwave oscillator having a hollow conductor, an oscillation generator which is mounted on a heatsink and projects into the hollow conductor, and a printed circuit board having electronic...
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7161441 |
High frequency distributed oscillator using coupled transmission line
The present invention relates to a distributed oscillator, and more particularly, to a high frequency distributed oscillator using coupled transmission lines. According to the present invention,...
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7145405 |
Planar high frequency oscillator
A planar harmonic high frequency oscillator comprises a pair of amplifiers for oscillation, a micro-strip line for connecting between inputs of the pair of amplifiers and between outputs of the...
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7145404 |
Injection locked high frequency oscillator
A push-push high frequency oscillator comprises a pair of amplifiers for oscillation, a loop-shaped microstrip line for connecting inputs of the pair of amplifiers to each other and connecting...
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7145406 |
Phase adjusting circuit and oscillator including the same
A phase adjusting circuit includes a meandering inductor provided on the surface of a base substrate, and a zero-ohm resistor mounted on two parallel line portions with one parallel line portion...
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7142068 |
Voltage controlled oscillator small in reduction of inductance and Q
The voltage controlled oscillator contains a circuit board having a laminate of a plurality of insulating plates, a wiring pattern formed on a surface of the circuit board, an electronic part...
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7142067 |
Voltage-controlled oscillator, composite module, and communication apparatus
A voltage controlled oscillator includes a resonant circuit having a choke coil, a variable-capacitance diode, coupling capacitors, a resonant capacitor, a resonator, and a bypass capacitor. An...
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7119625 |
High frequency oscillator using transmission line resonator
A high frequency oscillator comprises a transmission line resonator having a midpoint which serves as a null potential point, a pair of active devices for oscillation respectively connected to a...
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7109811 |
Voltage controlled oscillator, composite module, and communication apparatus
A resonant circuit includes a choke coil, a variable-capacitance diode, coupling capacitors, a resonant capacitor, a resonator defining an inductor element, and a bypass capacitor. An amplifying...
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7068115 |
Monolithic microwave integrated circuit voltage controlled coupled feedback oscillator
A feedback oscillator device formed with an integrated circuit having a semiconductor material substrate on a ground plane. The circuit has an amplifier having an input and an output is provided at...
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7061336 |
High frequency oscillator
A high frequency oscillator which obtains an oscillation output by combining the outputs of two oscillators has a substrate, first and second amplifiers for oscillation so disposed that their...
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7049897 |
High frequency band oscillator
In an oscillator used in a high frequency band such as the microwave band, the millimeter wave band, etc., an oscillation element and circuit components such as a resonator coupled to the...
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7005932 |
Electronic device having adjustable VCO
A circuit board having a VCO that can be adjusted during manufacturing is disclosed. The VCO has a resonating circuit, a coupling circuit, and an oscillating circuit. The coupling circuit and the...
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6980061 |
Voltage-controlled oscillator
The problem of interference and coupling between circuits that arises in reducing the size of a voltage-controlled oscillator by using low temperature co-fired ceramics (LTCC) substrate technology...
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6967540 |
Synthesizers incorporating parascan TM varactors
A synthesizer incorporating voltage tunable capacitors, comprising at least one resonator coupled into a base circuit of a bipolar transistor, the at least one resonator including at least one...
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6949982 |
Voltage controlled oscillators incorporating parascan R varactors
A voltage controlled oscillator incorporating voltage tunable capactiors, comprising at least one resonator coupled into a base circuit of a bipolar transistor, said at least one resonator...
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6924707 |
Resonator
A resonator minimizes degradation of the Q factor, accurately adjusts the frequency, and reduces the size and profile thereof. A voltage controlled oscillator including such a resonator includes a...
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6909333 |
Coplanar line based high frequency oscillator
A high frequency oscillator has a substrate made of, for example, a dielectric material, a resonator circuit disposed on one principal surface of the substrate and formed of a finite-length...
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6859111 |
Voltage tuned ferroelectric resonant oscillator
Burnout resistance ferroelectric material is used in the feedback path of a microwave oscillator as a frequency control element. The ferractor has rapid broadband frequency tuning capabilities...
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6853260 |
Tunable, distributed voltage-controlled oscillator
A voltage controlled oscillator is provided. The voltage controlled oscillator includes a differential transmission line and another transmission line, which can include a second differential...
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6842077 |
Voltage controlled oscillator for use in a phase locked loop
A voltage controlled oscillation device includes a voltage controlled oscillator, fixed-frequency oscillator, frequency mixer, and frequency selector. The voltage controlled oscillator changes the...
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6798305 |
High frequency oscillator using transmission line resonator
A high frequency oscillator suitable for implementing a push-push oscillator, a push-pull oscillator, and a four-phase push-push oscillator comprises a transmission line resonator, two active...
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6794947 |
Method for adjusting oscillator frequencies
The present invention provides a method for adjusting the frequency of an oscillator. The method comprises providing a substrate having a plurality of openings, forming a conductive layer on a...
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6778031 |
High-frequency circuit device using slot line and communication apparatus having high frequency circuit device
A high-frequency circuit device includes a substrate and a high-frequency circuit. The high-frequency circuit is provided on the substrate and has a signal line. The signal line is configured with...
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6765447 |
Microwave oscillator having improved phase noise of oscillation signal
A microwave oscillator includes a transistor for oscillation, an insulating substrate on which the transistor is mounted, a first strip conductor which is attached to the insulating substrate and...
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6759915 |
Multi-band, voltage-controlled oscillator
A multi-band, voltage-controlled oscillator has a switching device that can be certainly be turned on and off. The oscillator includes a negative source generator coupled to an output of a buffer...
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6756855 |
Multi-frequency dielectric resonator oscillator
The invention provides a dielectric resonator oscillator DR, especially for transmission devices whose oscillating frequency may take several values. The oscillator uses two interfering conductors ...
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6744402 |
High-frequency diode oscillator and millimeter-wave transmitting/receiving apparatus
An object of the present invention is to facilitate positioning of a metal member for mounting a high-frequency diode and of a dielectric strip, thereby remarkably improving control of oscillation...
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6727766 |
Oscillator with dielectric resonator and electronic apparatus using the same
A dielectric substrate, a transistor, which is an active device, a varactor diode, which is a frequency-variable device, are mounted on one main surface of a package substrate to configure an...
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6727767 |
Voltage controlled oscillator with two layered mounting structure
A voltage controlled oscillator is provided. The oscillator includes a surface acoustic wave element for forming a feedback circuit for an amplifier, and a phase adjustment circuit including a...
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6717480 |
Multielement oscillator employing higher mode planar resonator
A multielement oscillator employing a higher mode planar resonator being provided with the planar resonator and a plurality of oscillating elements. The planar resonator has a substrate, a...
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6714088 |
Low-phase-noise oscillator with a microstrip resonator
A low-phase noise oscillator with a microstrip resonator for generating a target signal with a predetermined frequency is provided. The resonator includes a first microstrip line and a second...
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6714086 |
Symmetric oscillators
A symmetrical oscillator includes a reactive element, such as an inductor, coupled between first and second active components, where the reactive element defines a fundamental resonant frequency...
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6683507 |
High-frequency oscillation circuit
A high-frequency oscillation circuit in accordance with the present invention includes a resonance circuit for generating oscillation frequency signal; an amplifying means having an input port for...
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6661297 |
Multi-octave wideband voltage controlled oscillator
A multi-octave, wideband voltage controlled oscillator has a plurality of high impedance current output individual voltage controlled oscillators coupled in parallel to form a bank of voltage...
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6650192 |
Method for adjusting characteristics of voltage control type oscillator
A method for adjusting a voltage control type oscillator prevent changes in characteristics from occurring after adjustments and permits the oscillator to be produced at a low cost. The voltage...
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