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7629857 |
Second harmonic oscillator
A second harmonic oscillator has a series positive feedback configuration, suppresses output of a fundamental signal, and outputs a second harmonic signal having a frequency in a range from 1 GHz...
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7605667 |
Frequency synthesizer with a harmonic locked phase/frequency detector
A frequency synthesizer. The frequency synthesizer comprises a harmonic locked phase/frequency detector, a low pass filter, a voltage controlled oscillator, and a frequency divider. The harmonic...
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7605670 |
User-definable low cost, low noise, and phase hit insensitive multi-octave-band tunable oscillator
An aspect of the present invention is a voltage controlled oscillator that provides multi octave band tenability. The oscillator preferably includes one or more multi planar resonators which allow...
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7602259 |
Voltage-controlled oscillator
A voltage-controlled oscillator has an oscillation frequency controlled through a voltage applied across ends of a variable-capacitance element. The voltage-controlled oscillator has a frequency...
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7557669 |
Voltage controlled oscillator and its control method
An object of the present invention is to provide a voltage controlled oscillator in a microwave band without narrowing the variable frequency range and having improved phase noise characteristics....
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7541897 |
Dielectric resonator, voltage-controlled oscillator, and wireless apparatus
A dielectric resonator having a line pattern that includes an electrode gap that defines a signal input/output portion provided on an open side, and a ground portion provided on a short-circuited...
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7515006 |
Resonator for a voltage controlled oscillator and manufacturing method thereof
An LC resonator ( 117; 122 ) for a voltage controlled oscillator ( 13; 116 ) has an inductive transmission line 31; 51 ), and input and output ports ( 33 a - b; 53 a - b ) connected to the...
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7511589 |
DFY of XtalClkChip: design for yield of trimming-free crystal-free precision reference clock osillator IC chip
A Design For Yield (DFY) of Crystal Chip (XTALCHIP (Trademark for a chip equivalent to a crystal resonator)) is to have the high yield of high quality high accurate clock chip to be able to...
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7482887 |
Multi-band tunable resonant circuit
A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the...
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7378915 |
Dielectric resonator oscillator and radar apparatus using the same
At least one of a rise time and a fall time of a dielectric resonator oscillator are reduced. The dielectric resonator oscillator includes a dielectric resonator, a drive circuit for applying a...
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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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7262670 |
Low thermal drift, tunable frequency voltage controlled oscillator
An oscillator comprising a cascode configured device having first, second and third terminals, a plurality of resonators and first circuitry coupled between the plurality of resonators and the...
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7180381 |
Wideband voltage controlled oscillator employing evanescent mode coupled-resonators
In one aspect, the present invention includes a voltage controlled oscillator comprising an active device having a plurality of resonators coupled across two terminals of the device and at least...
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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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7148762 |
Method for adjusting a resonator in an oscillator
A method for tuning a resonator in an oscillator is provided. A dielectric serving as a resonator in the oscillator is trimmed in a targeted manner by laser pulses until a target frequency for the...
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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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7145408 |
Resonant clock distribution for very large scale integrated circuits
A circuit for distributing a clock signal in an integrated circuit includes a capacitive clock distribution circuit. At least one additional inductor is formed in a metal layer of the integrated...
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7132900 |
High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system
If a transmission oscillator is incorporated into a communication semiconductor integrated circuit, such as high a frequency IC, constituting a wireless communication system, a problem arises. The...
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7113049 |
Device for generating oscillations in the high frequency range
A device for generating electromagnetic oscillations in the HF range, in particular in the gigahertz range, using at least one Gunn element, in particular at least one Gunn diode. The device is...
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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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7088194 |
Semiconductor integrated circuit device
In an oscillator, a FET, an output matching circuit having a diode, an LC series resonant circuit having a capacitor and an inductor, a transmission line, and a source inductor are arranged on one...
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7075378 |
High spectral purity microwave oscillator using air-dielectric cavity
A high spectral purity microwave oscillator is provided. The Oscillator uses an air-dielectric cavity and employs the known carrier-suppression technique. In one embodiment, the oscillator employs...
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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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7053721 |
Oscillator having a resonant circuit and a drive circuit
An oscillator includes a resonant circuit generating a resonant signal, a drive circuit that feeds back the resonant signal to the resonant circuit, and an output terminal connected to a given node...
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7015765 |
Resonant clock distribution for very large scale integrated circuits
A circuit for distributing a clock signal in an integrated circuit includes a capacitive clock distribution circuit having at least conductor therein. At least one inductor is formed in a metal...
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7002424 |
Oscillator having voltage dividing circuit
An oscillator includes a resonance circuit, and a feedback circuit coupled to the resonance circuit. The resonance circuit includes a main resonance element circuit, and a voltage dividing circuit...
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6987960 |
Microwave oscillator and low-noise converter using the same
A microwave oscillator for inducing parallel feedback from collector to base and obtaining a stabilized oscillation output is realized by connecting MSL A with released end to a base terminal of a...
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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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6960964 |
Oscillator
An oscillator includes a transistor having a collector receiving a power supply voltage, a first capacitor connected between a base and an emitter of the transistor, a second capacitor connected...
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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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6897735 |
Oscillator, transmitter/receiver module and radar system
The oscillator includes an active device, a substrate, a microstrip line formed on the substrate, and a dielectric block. The resonator is made up with the microstrip line and the dielectric block...
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6882237 |
Capture range control mechanism for voltage controlled oscillators
A voltage controlled oscillator generates an output signal whose frequency varies as a first function of a control voltage applied to a control terminal. The voltage controlled oscillator has a...
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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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6836191 |
Voltage-controlled oscillator having a transmission line between a resonator and a variable capacitance diode, high-frequency module including the same, and communication apparatus including the same
A voltage controlled oscillator includes a resonant circuit which is connected with an active circuit. In the resonant circuit, a variable capacitance diode is connected with a resonator via a...
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6832081 |
Nonradiative dielectric waveguide and a millimeter-wave transmitting/receiving apparatus
A NRD guide includes a pair of parallel plate conductors opposed to each other at a spacing equal to or shorter than half the wavelength of a high-frequency signal to be transmitted and having...
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6825734 |
Oscillator module incorporating spiral looped-stub resonator
A transmission line configured as a looped-stub resonator is disclosed, which can be used as a frequency selective element for an oscillator, such as a VCO of a phase locked loop. The transmission...
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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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6771139 |
Microwave pulse generator
The microwave pulse generator of the invention for generating microwave pulses with a pulse duration in the nanosecond range has a pulse generator that generates pulses of constant width, and a...
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6771137 |
High-frequency oscillator
A high-frequency oscillator includes: a substrate composed of a dielectric material; a first transmission line of coplanar structure which is arranged on one principal surface of the substrate; an...
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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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6762650 |
High-frequency oscillation circuit, high-frequency module, and communication apparatus
A high-frequency oscillation circuit includes a resonance circuit and an active circuit. The active circuit includes a field-effect transistor and a capacitor. An impedance-conversion circuit...
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6720833 |
Modulator and oscillator for microwave and milliwave use
The present invention provides a modulator which has a high degree of modulation and a good modulation sensitivity. The modulator comprises an oscillating circuit and a resonator portion, and this...
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6717492 |
Planar dielectric integrated circuit with line conversion conductor patterns
A planar dielectric integrated circuit is provided such that energy conversion loss between a planar dielectric line and electronic components is small and that impedance matching between them can...
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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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6714090 |
Voltage controlled oscillator with enhanced sensitivity of change of oscillation frequency
A voltage controlled oscillator comprises an oscillation transistor, a varactor diode, a resonance circuit which is coupled to the oscillation transistor, and a switching diode which changes over a...
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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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6680518 |
Monolithic inductance-enhancing integrated circuits, complementary metal oxide semiconductor (CMOS) inductance-enhancing integrated circuits, inductor assemblies, and inductance-multiplying methods
Monolithic inductance-enhancing integrated circuits, complementary metal oxide semiconductor (CMOS) inductance-enhancing integrated circuits, inductor assemblies, and inductance-multiplying methods...
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6603367 |
Voltage controlled oscillators including tunable dielectric devices
A voltage controlled oscillator includes an active element having a first connection point for connection to a voltage source and an output connection point. A tunable resonator including a first...
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