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Match Document Document Title
9041599 Radar receiver, and radar device equipped with same  
There is provided a radar receiver that effectively prevents local oscillator signals from leaking out from an antenna. A receiver 21 includes a local oscillator 5, a mixer 6, a buffer amplifier...
8907842 Method and apparatus for attenuating a transmitted feedthrough signal  
A radar system includes a receiver that is capable of attenuating transmitter feedthrough in a receive signal. In some embodiments, a fixed frequency notch filter is used to attenuate feedthrough...
8866667 High sensitivity single antenna FMCW radar  
One embodiment is directed towards a FMCW radar having a single antenna. The radar includes a transmit path having a voltage controlled oscillator controlled by a phase-locked loop, and the...
8831917 System and method for analyzing spiral resonators  
A spiral resonator is analyzed by modeling a set of loops of the spiral resonator with a model of a circuit including a set of units, wherein each unit includes a resistor and an inductor to model...
8698482 UWB measuring device capable of reducing disturbance in external signals  
The invention relates to a measuring device, especially for a machine tool and/or a manual measuring device, comprising a measuring unit (12a-d) that is adapted to measure and an external signal...
8193973 Multilayer metamaterial isolator  
A method of fabricating an array of radiating elements includes on one layer or surface of a dielectric substrate, forming a first leg of a first resonator loop, on another layer or surface of the...
8111188 Radar system  
To provide a smaller radar system having a simple structure with as small number of component parts as possible at a lower cost as compared to conventional ones. A radar system 1 including a 3 dB...
8067996 Vanadium-dioxide front-end advanced shutter technology  
A vanadium dioxide front-end advanced shutter device. The electronic shutter device is designed to protect receiver front-ends and other sensitive circuits from HPM pulse events such as HPM...
7978610 Method for asynchronous transmission of communication data between periodically blanked terminals  
A method for asynchronous transmission of communication data between periodically blanked terminals separated by an unknown distance is disclosed. A bursted signal is transmitted from a first...
7969350 Method and system for reducing a leakage component of a received radar signal  
Methods and systems for reducing a leakage component of a received-signal are disclosed. A transmit antenna of a radar system transmits a transmit-signal including a transmit component. A receive...
7773033 Multilayer metamaterial isolator  
A multilayer metamaterial isolator and method of fabricating the same. A first layer or surface of a multilayer dielectric substrate includes a first leg of a first resonator loop. A second layer...
7633435 Duplexer for simultaneous transmit and receive radar systems  
An enhanced duplexer (1) which includes a combination of high dynamic range (HDR) amplifiers (11, 17) and a naovel signal cancellation circuit topology (15). Return signals from the circulator (3)...
7570196 Apparatus, method, computer program product and system providing asynchronous transmission of communications data using time-gated techniques  
A method, computer program product, apparatus and system are provided. In one exemplary embodiment, a method includes: receiving at a second unit periodic energy bursts transmitted by a first...
7498974 Radar level gauge with a galvanically isolated interface  
A radar level gauge (RLG) using electromagnetic waves for determining a process variable of a product in a tank is provided which includes timing circuitry adapted to provide timing control of a...
7439901 Active phased array antenna for aircraft surveillance systems  
An active antenna is provided that includes an antenna element for transmitting RF transmit signals at a predetermined effective radiated power (ERP). An antenna module is configured to be mounted...
7436353 Transmitting-receiving module of radar system  
A transmitting-receiving module of a radar system which is an embodiment of the present invention, includes, a transmitting circuit for sending transmitting RF signal, a three terminal circulator...
7427949 System and method of using absorber-walls for mutual coupling reduction between microstrip antennas or brick wall antennas  
A multi-element antenna with sufficiently small return loss and mutual coupling signals to allow the simultaneous transmission of powerful radar signals and the reception of faint target return...
7388537 Radar detector with reduced emissions  
A radar detector includes features to reduce emissions such as those typically generated by the detector's local oscillator. Two low noise amplifiers (LNA's), operating in X band and a combined...
7221311 Radar  
A radar includes a transmitter circuit, a receiver circuit, an antenna and a circulator. The receiver circuit includes a low-noise amplifier which amplifies a received signal fed from the antenna...
7202812 Technique for compensation of transmit leakage in radar receiver  
A radar system (500) radiates a radar transmit signal, has a radar signal receiver (503) and a canceller (505) for canceling leakage of the transmit signal into the radar signal receiver (503)....
7119735 Vehicle-installed radar sensor system and vehicle-installed radar sensor  
A vehicle-installed radar sensor system includes a transmission section, a reception section, and a shield member. The transmission section is disposed in a closed space formed between a permeable...
7075478 Radar altimeter having an automatically calibrated sensitivity range control function  
A radar altimeter for an air vehicle is described. The radar altimeter includes a transmit antenna configured to transmit radar signals toward the ground, a receive antenna configured to receive...
6937184 Millimeter wave radar  
A millimeter wave radar for the purpose of automatic operation or collision prevention of a vehicle which solves the problem that a side lobe of a transmitted electromagnetic wave is reflected by...
6750808 Process instrument with split intrinsic safety barrier  
A process instrument comprises a housing, a terminal in the housing for connection to a two-wire process loop and an active element for sensing a characteristic of a process. A control circuit is...
6720912 Single-antenna time division control type FM-CW radar  
In a single-antenna time division control type FM-CW radar, an amplifier is provided in each signal path in a transmitting system and a receiving system, and the amplifier provided in the...
6686876 Photon primed non-radioactive gas plasma receiver protector  
A gas plasma type receiver protector for a radar system includes a priming device in the form of a miniature high intensity blue light emitting diode (LED) ranging in wavelength from 470 nm to 490...
6680692 Continuous-wave radar with reflection-modulator  
A continuous wave radar system includes a transmitter circuit for generating radar transmitting signals, a transmit/receive antenna, coupled to the transmitter circuit by way of a circulator, and...
6677891 Method and device for transmitting and receiving electromagnetic waves  
The invention relates to a filling level measuring device based on the principle of transit time measurement. An inventive filling level measuring device comprises an electronic unit (4) including...
6489927 System and technique for mounting a radar system on a vehicle  
A system and technique for mounting a radar to a vehicle provides a mounting that does not interfere with the aesthetic appearance of a vehicle, that does not interfere with the aerodynamic...
6456224 Edge concealment system for abating radar detectability of aircraft  
An edge concealment system for abating electrical discontinuities between externally exposed edges of adjacent surface pieces separated by a gap. The system includes a cover component shrouding...
6411250 Electromagnetic sensor system  
A vehicle (160) such as a motor road vehicle is fitted with an electromagnetic sensor system comprising transmitting means (e.g. 4, 1) for transmitting a radio frequency signal, receiving means...
6384765 Repeater jamming transmitter and casing for the same  
This invention concerns a repeater jamming transmitter (2), and a casing arrangement with repeater jamming transmitter. The repeater jamming transmitter (2) comprises transmitter antenna (7),...
6320532 Low power radar level transmitter having reduced ground loop errors  
A low power radar level transmitter having reduced ground loop errors and a related method are disclosed. A microwave termination is couplable to a reference voltage such as earth ground and is...
6154167 Excitation method and ultra-wide bandwidth antenna for ground penetrating radar systems  
A novel method of creating and detecting ultra wide bandwidth signals in a ground penetrating radar context.
6091360 Antenna system  
The invention relates to a multi-face phased array antenna. To prevent crosstalk between the individual faces, each face comprises two cancellers, each of which cancels the crosstalk from an...
5955984 System and method for simultaneous data link with multipurpose radar operations  
A technique for operating a communication link in RF proximity to an operational radar. A data link waveform is employed which allows a data link receiver to detect an alert indication during...
5920279 Procedure and system for the control of a number of radar units  
A procedure and a system increase the performance of a group of radar units. The radar units are arbitrarily located in such a way that the respective antenna beam of a radar unit functioning as a...
5861837 Poly-frequency CW doppler radar system with leakage cancellation and method  
A single antenna poly-frequency Continuous Wave (CW) Doppler radar system having leakage cancellation. The system provides for transmitting a plurality of carrier frequency signals and receiving...
5748139 Radar transponder  
A radar transponder for a stable and reliable response transmission upon reception of a weak radar signal having a reflection-conscious circuitry free from damage by a transmit effect, including a...
5689267 Automatic VSWR sensing for aircraft-mounted pulse radar systems  
An aircraft mounted pulse radar unit transmits a low-energy, test output pulse and processes the resulting test return signal to determine the VSWR and whether the VSWR exceeds a predetermined...
5646625 Radar system  
A radar system having a radar transmitter and a radar receiver. The radar receiver includes a "local" receiving station and a "remote" located antenna station. A feedthrough nulling system is...
5596325 FM-CW radar transceiver  
An FM-CW radar transceiver comprising an oscillator connected to an input of a power divider having first and second terminal outputs. The first terminal output of the power divider is connected...
5574464 High-speed switching device for monostatic impulse radar  
A switching device is provided which uses an array of high-speed photoconductive semiconductor switches laid out in a stripline configuration to achieve a transmitter-to-receiver isolation...
5541603 Reduced radar cross-section RF seeker front-end  
A Reduced Radar Cross-Section RF Seeker Front-End interrogates a potential arget by issuing interrogation radiation toward the target and receiving and analyzing a portion of the radiation that...
5521603 Incipient lightning detection and device protection  
An apparatus and method are provided for continuously and automatically protecting an electrical device (22) from a potential threat of damaging voltage levels. The apparatus includes a detector...
5479174 Tritium primed quartz ignitor for radar receiver protector  
A device for use as a receiver protector in radar systems comprising a passive gas stage device and a waveguide opening. The passive gas stage device includes a sealed quartz container, a reactive...
5446463 Device with high linearity for limitation of a characteristic of a signal, and use of the device in a radar reception system  
Disclosed is device with high linearity for limitation of a characteristic of a signal to a maximum value Smax, and notably the amplitude of a radar signal in a reception system with high...
5373297 Microwave repeater with broadband active and/or passive isolation control  
A microwave repeater with antenna isolation comprises a first receiving anna for receiving an input signal from a distant source; an amplifier section for amplifying and modulating the input...
5359331 Monostatic radar system having a one-port impedance matching device  
A monostatic frequency modulator continuous wave radar for detecting and determining the distance to near range objects. A temperature compensated one port Z-network is provided to generate a...
5153596 CW radar system  
A continuous wave radar system comprises a transmitter section (1), a receiver section (2) and a common transmit/receive aerial (3). A directional coupler (12) is used to couple the transmitter...

Matches 1 - 50 out of 106 1 2 3 >