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5905414 |
VCO having control voltage and modulation signal applied to varactor
A voltage controlled oscillator having a reduced oscillation frequency-modulation sensitivity variation and having a positive modulation function is designed to: (a) reduce the modulation variation...
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5870005 |
Frequency modulated oscillator for transmitting short range signals
A broadcast transmitter for generating low power modulated signals, especially for a wireless speaker system. A signal source such as a source of composite audio signals including left and right...
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5519362 |
Optical current controlled oscillators
The observation of self-sustained pulsation and transient self-pulsation in laser diodes at 1300 nm is described with the effects of optoelectronic feedback on the pulsations. Transient...
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5357222 |
Voltage controlled component including a capacitive diode biased to operate in the linear region
The invention relates to a biased electronic circuit in which a voltage-controlled component has a characteristic with a non-linear portion and a substantially linear portion. The circuit is biased...
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5302918 |
Subharmonic optically injection locked oscillator
A fundamental or subharmonic optically injection locked oscillator is coupled to a phase locked loop circuit. The injection locked oscillator has two single stage HEMT amplifiers with parallel...
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5187451 |
Oscillator using microstrip line having minimized line width and length
For minimization of a microstrip line and improvement of a Q value, the line length and width of the microstrip line are minimized, and the high frequency trend of the resulting resonant frequency...
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5168248 |
Ferri-magnetic film frequency modulator
For realizing a highly sensitive and favorably linear frequency modulator stably operating with a small-sized and readily manufactured arrangement, input and output strip electrodes are disposed in...
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4763085 |
Mutually injection locked millimeter wave voltage controlled oscillators with power combiner
Disclosed is a circuit for power combining electromagnetic energy in the millimicrowave frequency band where the electromagnetic energy is produced by two substantially identical varactor tuned...
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4736169 |
Voltage controlled oscillator with frequency sensitivity control
A voltage controlled oscillator is tuned with a network comprising two varactor diodes and two transmission lines. By selecting appropriate values of varactor capacitance and transmission line...
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4728909 |
Linearly frequency-modulated high-frequency oscillator with high external Q factor
A high-frequency modulator which is linearly modulated in a frequency range around a center frequency and comprises a high-gain field effect transistor whose output is fed-back to the input from a...
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4721927 |
Voltage-controlled-oscillator with modulator
A voltage-controlled-oscillator with a modulator, comprising a first variable capacitance diode and a second variable capacitance diode. The first variable capacitance diode is connected in series...
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4721926 |
Voltage-controlled-oscillator with modulator
A voltage-controlled-oscillator with a modulator, comprising a first variable capacitance diode, a second variable capacitance diode, and a third variable capacitance diode. The second variable...
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4660002 |
High frequency oscillator using a diode for frequency switching and FM modulation
A high frequency oscillator having an oscillation transistor connected to a resonant strip line unit consisting of a main strip line member and an auxiliary strip line member. The auxiliary strip...
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4538122 |
Diode oscillator with independently variable frequency and power
The oscillator includes a two-terminal device (1) as an active element and an impedance-matching network (4) for matching the two-terminal device to a load (A). The impedance-matching network is...
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4189690 |
Resonant linear frequency modulator
A circuit which modulates an r.f. carrier to produce an FM signal having a substantially linear frequency relation to an applied modulating voltage over a selected deviation bandwidth. An r.f....
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4068173 |
Frequency stabilized microwave signal source
The frequency of a microwave oscillator is stabilized by coupling a portion of the RF signal therefrom to an HF oscillator operating at a sub-multiple of the microwave frequency and producing a...
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3982211 |
Linearized varactor frequency modulated semi-conductor diode oscillator
The present invention relates to a frequency modulated oscillator, preferably operating within the microwave range, comprising a resonator having a reversed biased semi-conductor element, for...
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3796969 |
FREQUENCY CONTROL AND SYNCHRONIZATION OF GUNN OSCILLATIONS
An arrangement for controlling the oscillation frequency of a Gunn effect device by applying thereto high frequency signals which act to vary the operating voltage thereacross between a value which...
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3748596 |
MULTIPLE DIODE COAXIAL CAVITY OSCILLATOR WITH MANUAL AND VARACTOR DIODE TUNING
A novel coaxial line cavity oscillator is disclosed which enables the oscillation outputs of two or more Gunn or Impatt diodes to be efficiently combined over relatively broad radio frequency...
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3747032 |
ARRANGEMENT FOR PROVIDING IMPROVED LINEARIZATION OF THE VOLTAGE-FREQUENCY CHARACTERISTIC OF A RESONANT CIRCUIT HAVING A VOLTAGE-VARIABLE CAPACITY DIODE
A voltage-variable capacity diode is coupled through a one-third wavelength transmission line to a resonant cavity. The capacity of the diode is varied by a modulating voltage so as to change the...
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3737777 |
INJECTION PHASE LOCKING DEVICE IN AN FM-TRANSMITTER FOR A SELF-OSCILLATING OSCILLATOR MODULATED BY A MODULATION SIGNAL
A phase locking arrangement in which a free-running oscillator running with a frequency f o is injection phase locked by a synchronizing oscillator with a free-running frequency f s and a...
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3711792 |
SOLID STATE OSCILLATOR HAVING SEMICONDUCTOR ELEMENTS MOUNTED IN A CAVITY RESONATOR
A solid state oscillator comprising a cavity resonator having an output portion, at least two semi-conductor elements disposed in an equi-phase plane of an electromagnetic field, and means for...
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3705364 |
APPARATUS FOR GENERATING MICROWAVES HAVING A GENERATING ELEMENT AND VARIABLE REACTANCE ELEMENT IN A CAVITY RESONATOR
Apparatus for generating microwaves comprising a cavity resonator, a microwave generating element and a solid-state variable reactance element such as a variable capacitance diode, both of these...
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3675161 |
VARACTOR-CONTROLLED PN JUNCTION SEMICONDUCTOR MICROWAVE OSCILLATION DEVICE
A solid state microwave generating device comprising a 3-terminal element having a p-n junction representing a negative resistance and a junction of which the junction capacitance is varied...
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3638143 |
FREQUENCY-MODULATING SYSTEM FOR MICROWAVE SOLID-STATE OSCILLATOR
Frequency modulation is obtained by applying a modulating voltage across a variable capacitance diode which appears in the center conductor of a cavity resonator. A direct voltage energizes a Gunn...
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3571750 |
NEGATIVE RESISTANCE AVALANCHE DIODE OSCILLATOR CIRCUITS
An oscillator circuit comprises a cavity resonator and two avalanche diodes having interconnected anode contacts. The diodes extend across the resonator and a tuning plunger extends toward the...
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3539946 |
SOLID STATE WIDE BAND MICROWAVE VOLTAGE CONTROLLED OSCILLATOR WITH IMPROVED FREQUENCY MODULATION CAPABILITY
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3524149 |
FREQUENCY MODULATED OSCILLATOR CIRCUIT UTILIZING AVALANCHE DIODE
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3512105 |
LINEAR VOLTAGE TUNED MICROWAVE RESONANT CIRCUITS AND OSCILLATORS
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3465265 |
FREQUENCY MODULATOR USING AN N-TYPE SEMICONDUCTOR OSCILLATION DEVICE
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3443247 |
VARACTOR MODULATOR HAVING A LINEAR TUNING VOLTAGE VS. FREQUENCY RESPONSE
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3388348 |
Temperature compensated microwave source
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3189823 |
Transistorized transmitter employing a transmission line section
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3183456 |
Frequency modulation apparatus
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3144630 |
Sonobuoy apparatus
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3127574 |
Biasing circuits for voltage controlled negative resistance diodes
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3063023 |
Modulated oscillator and low impedance diode construction therefor
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2895109 |
Negative resistance semiconductive element
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3560883 |
Title is not available
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