IEC 61114-1:1999 pdf download – Receiving antennas for satellite broadcast transmissions in the 11/12 GHz band一 Part 1: Electrical measurements

IEC 61114-1:1999 pdf download – Receiving antennas for satellite broadcast transmissions in the 11/12 GHz band一 Part 1: Electrical measurements.
This pan of lEC 61114 applies to individual and collective receiving antennas for satellite broadcast transmissions in the 11112 GHz band.
This standard mainly applies to parabololdal reflector antennas, which Include offset paraboloidal reflector anfennas, Gassegrain reflector antennas and other equivalent types. It also applies to planar array anfennas. However, fhe supporting mast and the radome are not included In this standard.
This standard applies to the following six types of antennas.
a) Antenna of a single antenna system to receive signals from a single satellite
1) linearly polarized single-beam antenna:
2) circularly polarized single-beam antenna.
b) Antenna of a single antenna system to receive signals from two or more than two satellites
1) linearly polarized multiple beam antenna:
2) circularly polarized multiple beam antenna.
c) Antenna of a multiple antenna system to receive signals from two or more than two
satellites
1) linearly polarized system of single-beam antenna;
2) circularly polarized system of single-beam anfenna.
Typical configurations of these six types are illustrated in tigure 1.
The object of this part of lEG 61114 is to define the conditions and methods of measurement to be applied. This standard does not specily performance requirements.
II is assumed that for some measurements the SHF converter will be removed from the antenna, leaving access to an r.f, port.
2 NormatIve references
The following normative documents contain provisions which, through reference In this text, constitute provisions of this pan of IEC 61114. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and the parties to agreement based on this part of lEG 61114 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of ISO and lEG maintain registers of currently valid International Standards.
IEC 60050(71 2):1 992, International Electrotechmcal Vocabulary (1EV) — Chapter 712: Antennas IEC 61079.1:1992, Methods of measurement on receivers for satellite broadcast transmissions
in the 12 GHz band — Part 1: Radio-frequency measurements on outdoor units 3 Terms and definitions
For the purpose of this part of lEG 61114, the following general definitions apply.
receiving antenna
SHF antenna intended for use in individual and collective reception of satellite broadcast signals
A polarization switching device is inciuded in an antenna, it the antenna is able to receive two orthogonal polarized waves
3.2
paraboloidal reflector antenna
antenna usually comprising main reflector, a primary (and sometimes a secondary) radiator with or without a feedome. an SHF converter. supporting structures for a primary radiator or subretlector and pointing structures
3.3
planar array antenna
antenna usually comprising radiating elements, a feed network, an SHF converter, supporting structures, pointing structures and a radome
3.4
standard antenna
antenna which is used as a gain reference for receiving antennas under test
3.5
source antenna
antenna which is used as a transmitting antenna for measurements
3.6
polarization switcher
device wtnch can seiect one type of polarization
4 General notes on measurements
4.1 General conditions
4.1.1 Introduction
Measurements should be carried out In accordance with the following conditions to ensure repeatable results.