2 edition of Earth station antenna sidelobe characteristics found in the catalog.
Earth station antenna sidelobe characteristics
J. M. Harman
by U.S. Dept. of Commerce, National Telecommunications and Information Administration in [Washington, D.C.]
Written in English
|Statement||J.M. Harman, R.D. Jennings.|
|Series||NTIA report -- 84-164.|
|Contributions||United States. National Telecommunications and Information Administration.|
|The Physical Object|
|Pagination||vi, 48 p. :|
|Number of Pages||48|
- External to Antenna • Galactic noise • Clouds, rain in path • Solar noise (in mainbeam or sidelobe) • Earth (K) • Man-made noise • Nearby objects • Satellite structure (See SMAD Fig )File Size: 1MB. Specifications on both terrestrial and satellite antenna performance, especially as regards copolar isolation, crosspolar discrimination and sidelobe radiation characteristics, reflect these advances and provide a significant challenge to designers. In this Chapter both earth-station and satellite antenna technology is reviewed.
Abstract. Using the results of a theoretical analysis of the radiation pattern of Cassegrain antennas, the paper discusses the requirements imposed by the most recent Consultative Committee on International Radio recommendations for the maximum-allowable sidelobe level applicable to earth-station antennas with D/lambda greater than (D being the diameter of the main reflector).Cited by: 4. The probecom m satellite earth station delivers exceptional performance for transmit/receive and receive only applications for L through Ka-band frequencies. This antenna offers a reflector design that incorporates precision-formed panels, truss radials and hub assembly using matched tooling for interchangeable components.
ASTM Book of Standards. National Board NBIC (NB 23) Drawing and Drafting. Electrical and Mechanical Characteristics of Earth Station Antennas for Satellite Communications," are the following: (a) to provide standard terms, definitions, and concepts for the mechanical and RF design of earth station antennas, and sidelobe level, safe wind. Calculate the carrier-to-interference ratioat the receive station antenna. Antenna sidelobe characteristics of 32 Ϫ 25 log dB may be assumed, with the satellites spaced at 2° and polarization isola-tion of 4 dB on uplink and downlink Repeat Prob. for a sidelobe .
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Get this from a library. Earth station antenna sidelobe characteristics. [J M Harman; R D Jennings; United States. National Telecommunications and Information Administration.]. Sidelobe gain characteristics for Ku-band earth-station antennas.
[J M Harman; R D Jennings; United States. National Telecommunications and Information Administration.]. EARTH STATION ANTENNA SIDELOBE CHARACTERISTICS J. Harman and R.
Jennings* Measured analog data showing gain as a function of angle away from the mainbeam (maximum gain) axis have been obtained for 22 types of reflector antennas designed for operation at 4 GHz for reception and 6 GHz for transmission.
The antennas. Earth station antenna sidelobe characteristics Earth station antenna sidelobe characteristics book NASA/ADS Measured analog data showing gain as a function of angle away from the mainbeam (maximum gain) axis have been obtained for 22 types of reflector antennas designed for operation at 4 GHz for reception and 6 GHz for : John M.
Harman. Characteristics of Satellite Antennas in the Fixed-Satellite Service" (1 B/4) (CCIR, c), and (3) "Characteristics of Antennas at Earth Stations in the Fixed-SatelliteService" (1C-1/4) (CCIR, d). The study of antenna sidelobe characteristics reported herein responds primarily to Study Programme 1A-1/4, which urges that studies be carried.
Sidelobe gain characteristics for Ku-band Earth-station antennas: Authors: Harman, J. M.; Jennings, R. for antennas for Earth stations in the Fixed-Satellite Service to develop statistical characterizations of gain versus angle for the sidelobe regions. The digitization and analysis techniques are discussed and statistical results are.
the same frequency bands, it is necessary that the gain of the earth-station antenna be known in the relevant direction; b) that in the case of interference calculations between satellite systems, it may be desirable to know the radiation characteristics of the antenna in planes other than the principal plane.
ANTENNA AND WIDEBAND RF PERFORMANCE CHARACTERISTICS OF C–BAND EARTH STATIONS ACCESSING THE INTELSAT SPACE SEGMENT (6 and 4 GHz Frequency Bands) Approval Date: 10 March * This design objective is identical to the mandatory sidelobe requirements for antennas with an RFP issued after * For D/λ belowthis angle becomes λ File Size: KB.
INTELSAT Earth Station Technology Table of Contents Last Updated: 04 June Page i of Doc. No.: ESTECHHNDBK Verify document currency before use. Pub.
Rel. No.: 5. the Eutelsat Earth Station Standard M (EESS refers). The type-approval process includes successful witnessed RF tests on at least three units chosen at random during the production phase, a survey of the manufacturing, integration and QA/QC processes, and close follow up of antenna operations for Eutelsat satellites.
Earth Station Antennas that are not in Conformance with the Sidelobe Requirements of 47 CFR Full Title: Earth Station Antennas that are not in Conformance with the Sidelobe Requirements of 47 CFR Sidelobe level reduction by improvement of strut shape Abstract: From the viewpoint of effective utilization of both the geostationary orbit and the frequency spectrum in the satellite communication system, it is strongly required of an earth station antenna to have low sidelobe characteristics in order to minimize the interference from/to the adjacent satellite and the terrestrial microwave by: antennas with improved side-lobe characteristics for a better utilization of the GSO, recommends 1 that new antennas of an earth station operating with a geostationary satellite should have a design objective such that the gain, G, of at least 90% of the side-lobe peaks does not exceed: G File Size: KB.
source characteristics, correction factors and parameters associated with the radiostar method and the antenna gain method can be found in Rec. ITU–R S–1 and the INTELSAT SSOG. Earth Station Approval Approval of an earth station will be limited to angles of operation for which the condition of paragraph is Size: KB.
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BROADCASTING SATELLITE SERVICE by R.E. COLLIN and L.R. GABEL ELECTRICAL ENGINEERING AND APPLIED PHYSICS DEPARTMENT Case Institute of Technology Case Western Reserve University Cleveland, Ohio Prepared for NATIONAL AERONAUTICS AND SPACE.
• The complete earth station (). Eutelsat S.A. Operators will then be able to introduce type approved antenna/earth station units, without the need for full verification testing or certification of the performance characteristics by simply notifying Eutelsat S.A.
as foreseen within the application form. characteristics of information technology equipment".  ITU-R Recommendation (): "Method for statistical processing of Earth station antenna side-lobe peaks".  IEC (): "Electromagnetic compatibility for industrial-process measurement and control equipment" Part 3 "Radiated electromagnetic field requirements".
the antenna characteristics for EMC analyses. The memorandum covers the antenna gain requirements, radiation patterns, sidelobe requirements, and other technical data. The results of this memorandum will be incorporated into the Best Practices Handbook. This memorandum contains two compilations of antenna parameters.
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Earth station antennas are at the earth end of satellite links. High gain is needed to receive the weak signals from the satellite, or to transmit strong signals to the satellite. The antennas .In antenna engineering, side lobes or sidelobes are the lobes (local maxima) of the far field radiation pattern of an antenna or other radiation source, that are not the main lobe.
The radiation pattern of most antennas shows a pattern of "lobes" at various angles, directions where the radiated signal strength reaches a maximum, separated by "nulls", angles at which the radiated signal.Using the results of a theoretical analysis of the radiation pattern of Cassegrain antennas, the paper discusses the requirements imposed by the most recent Consultative Committee on International Radio (CCIR) recommendations for the maximum-allowable sidelobe level applicable to earth-station antennas with D/Λ > (D being the diameter of the main reflector).Cited by: 4.