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SOMAP or “Set of Minimum Antenna Performance” Requirements is a set of minimum performance criteria, designed for satellite antenna manufacturers to maintain uniformity across industries while manufacturing antennas. This set of minimum antenna performance requirements was proposed by a group of industry-leading satellite operators from AsiaSat, Eutelsat, Inmarsat, Intelsat, and SES, for enhancing the antenna performance.
The focus on antenna performance has become a major priority due to the growth of the satellite industry. As a result, it is desirable for these operators to work with antenna manufacturers for improving the antenna terminal qualification process.
This framework is primarily intended to address the qualification of new antenna products being introduced to the market. The framework developed and endorsed by the SOMAP working group consists of the following key elements.
1) Minimum Antenna Performance Requirements Matrix
This matrix consists of individual tables for C-Band, Ku-Band and Ka-Band antennas. Each of the tables has requirements listed as well as the corresponding values and recommendations.
The horizontal axis of the matrix represents the antenna type in terms of size and application. The vertical axis represents the parameters for which the requirements are specified in the individual cells.
The matrix includes a list of the following antenna types and parameters:
Antenna Types
Parameters
2) Definition of Mandatory Test Data
This lists in detail the data which the participating satellite operators intend to request on a mandatory basis solely from manufacturers of COTM systems.
The list includes basic information, such as- manufacturer name, antenna model, shape and dimensions, antenna type/used principles, and frequency band (Tx/Rx), along with the technical data.
The following table includes the requirements for Parabolic Comms-On-The-Move antennas:
The following table includes the requirements for Non-Parabolic Comms-On-The-Move antennas:
3) Performance Data on Datasheets
Antenna manufacturers are requested to list a dedicated set of performance data on future datasheets, so as to enable engineers to utilize these data in link-budget analyses, to compare products that are alike and to assist satellite operators in the antenna approval process.
Click here for more information on SOMAP.
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