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7042406 |
Method and apparatus for insuring integrity of a connectorized antenna
An antenna is provided with an electronic component or circuit that has a value corresponding to properties of the antenna. A read mechanism reads the value and sets an operational status of a...
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7038623 |
Method and apparatus for detecting radiation at one wavelength using a detector for a different wavelength
An apparatus includes a resonator portion responsive to electromagnetic radiation within a frequency range, a converter portion responsive to radiation received by the resonator portion for...
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7038629 |
Antenna coupler
The invention relates to an antenna coupler ( 1 ) for testing mobile transmitters and/or receivers, in particular mobile telephones ( 2 ). Said coupler has a receiving element ( 4 ) and/or a...
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7035594 |
Method and apparatus for testing and evaluating wireless communication devices
A testing chamber is configured to evaluate the accuracy of a wireless communication device under test in a production environment. The configuration of the testing chamber may resemble an enclosed...
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7035611 |
Apparatus and method for front-end circuitry in radio-frequency apparatus
A radio-frequency (RF) apparatus includes front-end circuitry. The front-end circuitry includes a filter circuitry and an impedance matching circuitry. The filter circuitry has a differential...
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7020443 |
System for measuring a radio frequency signal in a wireless station and a wiring board switch
The invention relates to a method for measuring a radio frequency signal in a wireless station ( 1 ). In this method, radio frequency power is measured by means of testing equipment ( 6, 7, 12 ),...
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7015857 |
Calibrating an antenna by determining polarization
Calibrating an antenna includes receiving a signal sent from a reference located within a region. The signal has a polarization within an expected polarization range. Polarization value sets are...
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7006038 |
System and method for determining optimal broadcast area of an antenna
This invention is directed to a system and method for determining the broadcast coverage of an antenna without having to go through the steps of actually building the antenna. The antenna...
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6989792 |
Device for radio communication equipment to reduce electromagnetic energy absorbency of a human body
A device for a set of radio communication equipment to reduce electromagnetic energy absorbency of a human body, it suits especially the equipment of a mobile phone, a Blue Tooth or a PDA etc. The...
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6987484 |
Detector for electromagnetic radiation and a method of detecting electromagnetic radiation
A detector for detecting electromagnetic radiation, especially for electromagnetic radiation in the GHz or THz range. The detector comprises a semiconductor structure having a 2D charge carrier...
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6985116 |
Bolometric detection device with antenna and optimized cavity for millimetric or sub-millimetric electromagnetic waves, and manufacturing process for this device
Bolometric detection device with antenna and optimized cavity for millimetric or sub-millimetric electromagnetic waves, and manufacturing process for this device. This device, preferably made from...
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6980163 |
Signal leakage detector
An antenna apparatus for detecting a leaked electromagnetic signal is provided. The apparatus includes a telescoping antenna and a casing, which has a portion of the antenna mounted in it. The...
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6961016 |
Estimating an antenna pointing error by determining polarization
Estimating an antenna pointing error includes receiving a signal sent from a reference located within a region. A polarization ratio is evaluated over the region. A minimum polarization ratio...
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6961021 |
Wireless node that uses a circular polarized antenna and a mechanism for preventing corner reflections of an inside of a metal box space
In the present invention, upon reflection of an electromagnetic wave on a metallic surface, a phenomenon is employed that the direction of rotation of a circularly polarized wave is reversed for...
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6956736 |
Fixing device for antenna
A fixing device ( 20 ) for securing an antenna ( 10 ) to a front panel ( 60 ) of a computer enclosure ( 80 ), includes a main body ( 22 ), two fixing arms ( 24 ) extending from opposite ends of the...
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6943739 |
Method and apparatus for testing RF modules
A device that has an antenna and an internal RF circuit is connected by an electrical conductor that has a first portion coupled to the RF circuit and an opposed, flexibly resilient second portion....
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6941152 |
Wireless subscriber network registration system for configurable services
In a wireless telecommunications network, wireless transmissions are carried via an RF medium between users and a central wireless transceiver, or base station processor. A subscriber access unit...
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6937186 |
Main beam alignment verification for tracking antennas
A method for main beam alignment verification includes providing data pertaining to one or more patterns associated with an antenna, measuring power levels of a signal acquired by the antenna, and...
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6931554 |
Add-on card for wireless communication with power-managing circuit
An add-on card for a personal digital assistant (PDA) for wireless communication includes a connector for connecting to the PDA, a power managing circuit connected to the connector for storing a...
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6927734 |
Dielectric rod antenna
A dielectric rod antenna assembly for a level measurement system. The antenna assembly includes a transition structure housed within a coupling sleeve. The transition structure includes a...
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6914571 |
Device for measuring characteristics of an electromagnetic field, particularly for the radiation diagram of an antenna
The present invention relates to a device for measuring characteristics of an electromagnetic field emitted by a source being tested, comprising a radiating element ( 8 ), a support ( 6 ) for said...
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6891503 |
Bolometric detector with antenna comprising a switch and imagery device comprising same
The bolometric detector comprises at least one receiver antenna designed to collect electromagnetic waves. The antenna is extended by a resistive load converting the power from the electromagnetic...
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6892117 |
Method of measuring point-blank passing time or the like of airplane
A terrain clearance measuring radio wave being emitted from an airplane is received, and changes in electric field intensity of the radio wave is input and recorded to a computer, whereby the time...
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6885265 |
Hybrid mode stirred and mode tuned chamber
First and second electrically conductive rods are provided inside a shielded electromagnetic test chamber. These rods are energized to radiate electromagnetic energy inside the chamber. The rods...
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6885348 |
Test chamber for a low band antenna array
A Test Chamber for testing a frequency response of a Low Band Antenna Array output by injecting an RF test signal into the interior of the test chamber. The test chamber comprises a rectangular...
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6873827 |
Method and apparatus for providing feeder cable insertion loss detection in a transmission system without interfering with normal operation
A method and apparatus for measuring a change in the insertion loss of a transmission line in a communication system is disclosed. The method provides feeder cable insertion loss detection in a...
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6856291 |
Energy harvesting circuits and associated methods
An inherently tuned antenna has a circuit for harvesting energy transmitted in space and includes portions that are structured to provide regenerative feedback into the antenna to produce an...
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6850851 |
Method and device for near-field measuring of non-controlled radiation
An electric field emitted by an electronic equipment is measured by producing at least one radiation measurement in the radiating field of the equipment. Several sets of simultaneous near-field...
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6839032 |
Protable radio terminal testing apparatus using single self-complementary antenna
A portable radio terminal testing apparatus has an antenna coupler 20 , a connecting member 16 , and a measuring device 15 . The antenna coupler 20 has a placement member 35 , a coupling...
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6795030 |
Electromagnetic compatibility testing device
A testing device for measuring radiation, immunity and electromagnetic characteristics of an object to be tested ( 1 ), includes a conductive structure ( 53 ) enclosing a testing volume where the...
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6784670 |
Dual chambered anechoic chamber
A dual-chambered anechoic chamber used in conjunction with spatial averaging for making transmission measurements of electromagnetic devices. The anechoic chamber includes a first tapered chamber...
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6778131 |
Automotive radar elevation alignment
A method and an apparatus for aligning the elevation of an automotive radar unit. The method of aligning a radar transceiver unit ( 4 ) on a vehicle ( 1 ) having the steps of: positioning at least...
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6774864 |
Method of operating a wireless communication system
A method of selecting a combination of transmit antennas (TA 1 to TA 4 ) and receive antennas (RA 1 to RA 4 ) in a MIMO antenna system to give the best isolation from adjacent parallel signal...
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6762726 |
Antenna array for the measurement of complex electromagnetic fields
A method and apparatus for measuring an electromagnetic field are disclosed. In accordance with the apparatus an array of substantially identical antenna elements having a substantially shorter...
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6750822 |
Mobile system and method for characterizing radiation fields outdoors in an extensive and precise manner
A mobile measuring arrangement for precise characterization of large area radiation fields includes a hovering and remotely controllable platform which includes a measuring probe and at least one...
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6727859 |
Radiated electric-field meter
A radiated electric-field meter comprises high frequency and low frequency antennas connected to a pre-amplifier with manually adjustable gain. This feeds a linear-logarithmic amplifier/detector...
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6720928 |
Parallel displacement/inclination measuring apparatus and antenna system
A laser pointer and an image sensor are employed as one measuring system, and two measuring systems are arranged such that a laser beam is irradiated in the opposite direction. One laser pointer...
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6661384 |
Mirror surface accuracy measuring device and mirror surface control system of reflector antenna
Radiation field distributions of all mirror panels composing a main reflector are measured and held in advance, radiation field distributions of a reflector antenna having the main reflector are...
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6657596 |
Method of measuring a pattern of electromagnetic radiation
A method of measuring a pattern of electromagnetic radiation. A plurality of scattered electromagnetic radiation samples are sensed from a transmitted signal formed from electromagnetic radiation....
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6650549 |
Hub having a bluetooth system
A hub includes a bluetooth system module coupled to a hub module. The hub module is also coupled to an upstream port and a plurality of downstream ports provided on a housing of the hub...
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6625428 |
Voltage standing-wave ratio measurement apparatus and use in a cellular communications system
An apparatus for monitoring a cellular communications system; comprising a plurality of voltage standing-wave ratio (VSWR) measurement means located at respective connections to antennas of said...
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6606904 |
Filling level gage
A filling level gage operating with microwaves, for measuring a filling level of a filling material ( 5 ) in a container ( 1 ), is provided which functions with a single antenna ( 7 ) constructed...
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6606064 |
Systems and methods for using a closed field antenna for air interface testing
A tester comprises a first antenna that includes a cylinder formed from a dielectric material, a ground plane covering at least a portion of the outer surface of the cylinder, and a conductor...
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6577268 |
Outboard radio signal test system and method
The present invention provides an outboard test facility that is operable for testing a ship's direction finding antenna system in all directions as the ship circles while receiving test signals...
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6570539 |
Method for vibration detection during near-field antenna testing
Disclosed herein is a method of detecting relative vibration between an AUT and a probe during any type of near-field testing. The method also provides the means to measure and compensate for any...
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6564350 |
Testing frequency hopping devices
An improved system and method for testing high frequency electronic devices. The improvement allows characteristics such as phase noise to be measured while a device under test changes operating...
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6556166 |
Method of measuring elevational mis-alignment of an automotive radar sensor
A method of measuring elevational misalignment of an automotive radar sensor in a factory or service setting utilizes two or more targets that can be discriminated by the radar system. The targets...
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6531989 |
Far field emulator for antenna calibration
A radar antenna for a guided missile is calibrated in flight using a point source of microwave radiation and a lens to emulate a far field source. The microwave source and lens fit behind a metal...
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6492957 |
Close-proximity radiation detection device for determining radiation shielding device effectiveness and a method therefor
A radiation detection device for locally detecting radiation of RF energy emissions from close proximity direct line-of-sight electromagnetic fields emitted by a wireless transmit/receive...
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6486838 |
Apparatus for and method of Nuclear Quadrupole Resonance testing a sample
An apparatus for and a method of Nuclear Quadrupole Resonance testing a sample in the presence of interference are disclosed. The apparatus comprises excitation applying means for applying...
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