Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES1971168320UpriorityCriticalpatent/ES168320Y/en
Publication of ES168320UpublicationCriticalpatent/ES168320U/en
Application grantedgrantedCritical
Publication of ES168320YpublicationCriticalpatent/ES168320Y/en
Multidirectional antenna, characterized by the fact of being formed by a cover or cap in the form of a hemisphere with an equatorial flange in which holes are provided for the passage of the means of attachment to the exterior surface of the house, while in the interior volume of the the hemisphere is arranged spiral metal receiving screens and placed in parallel according to proportional latitudes that concentrate and direct the electromagnetic waves towards a laminar screen in the form of a star supported by insulating panels according to quadrants, and which inscribes in its lower part a crosspiece of metal of branches in spiral and that constitutes the dipole to whose crossing a coaxial cable, armored and isolated, that connects to the antenna with the receiving apparatus is connected. (Machine-translation by Google Translate, not legally binding)
Analysis of observational data obtained by Alouette II. V- Comparison of the F 2 critical frequencies from two observational methods of topside sounding and ground based sounding(F 2 critical frequencies from Alouette 2 satellite ionogram data compared with ground-based sounding results)
Comparison of the infrared spectrum of mars with the spectra of selected terrestrial rocks and minerals(Comparison of IR Mars spectrograms with laboratory and solar spectra of terrestrial rocks and minerals, using same equipment)
General properties and experimental measurement techniques- Review of aircraft aerials for the lower frequencies(Aircraft receiving/ADF/ aerials for lower frequencies, discussing small dipole type input impedance, tilt angle and sensitivity product)
Shock metamorphism and origin of regolith and breccias at the Apollo 11 and Apollo 12 landing sites(Apollo 11 and 12 regolith and breccia samples, discussing shock effects detection and interpretation, chemical composition, grain size distribution and impact origin)
A low profile antenna for airborne stationkeeping radar applications(Array of eight channel guide antennas for airborne stationkeeping radar applications)
The design and testing of a large, streamlined dual frequency airborne radome(Electrical and physical design and testing of large dual frequency and tracking airborne sandwich radome)
Horn-array type electrically despun antenna for the 11-GHz band(Horn array electrically respun antenna design, testing and radiation characteristics, noting excitation by feed system consisting of phase shifters and circular switches)
Aspects of vehicular S-band telemetry antennas(Omnidirectional radiation pattern for S-band telemetry on rockets more than 1/2 ft in diameter by small electrical separation of antennas)
Accounting for the influence of antenna azimuthal radiation patterns and for the nonuniformity of meteor-radiant distribution in the determination of wind velocities(Antenna azimuthal radiation patterns and meteor radiant distribution effects on wind velocity measurement by radar observation of meteor trains)
Diurnal and seasonal variations in the intensity of phase-difference fluctuations or radio waves propagating in the atmospheric ground layer(Diurnal and seasonal phase-difference fluctuation measurement of radio waves propagating along ground layer caused by atmospheric turbulence)
Radiative properties of cloud covers(Actinometric radio probe measurement of effect of clouds on long wave radiation field and to locate upper cloud cover surface from vertical profile of radiative fluxes)