Satellite Communications Antenna Feeds

Table of Contents

• Introduction
• GOES, S-Band
• C-Band
• Multi-Satellite
• Ku-Band
• C/Ku-Band

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AFC has been designing and manufacturing feed systems for over two decades. Numerous feed components, launchers, dual polarization couplers, orthomode couplers scalar assemblies, diplexers, ultra low loss waveguide and filters comprise a product line for commercial and government customers. Frequency bands covered are up to 100 Ghz

Often feed requirements involve unique requirements. Typical examples are lightweight, high shock and vibration feed components for aircraft and space systems, high power components for radar and GOES or transmit/receive feeds for US and Intelsat satellite dish antennas. Manufacturing techniques employed are aimed at achieving desired technical results and cost objectives. For example, receive only dual polarized feeds and multi-satellite feeds are highly tooled aluminum castings. Electroforming methods are used to generate complex internal contours, high strength and light weight products. Such techniques are common for orthomode polarizers and Tallguide ®, an ultra low loss waveguide for satellite earth station uplinks and radar. AFC's conical horn antenna product line contains a complete list of Western Electric equivalent feed component networks.

The table page below lists AFC's most common feeds for satellite communications. Please contact AFC's sales department sales@afcsat.com for your specific requirement.

Satellite Communications Feeds

GOES, S-Band	Description
SPS	Single port linear feed
SPSM	Motorized single port linear feed
C-Band	Description
SPC	Single port receive only linear feed
DPC	Dual port linear receive only feed
DPC-CP	Dual port circular polarized receive only feed
DPCM	Motorized remote dual port linear polarized receive only feed
TRC	Transmit, receive two port linear feed
TRCF	Transmit, receive two port linear feed with transmit reject filter
TRCF-CP	Circular polarized transmit, receive two port linear feed with transmit reject
CFLT	Transmit reject filter
TRCM	Motorized remote transmit, receive two port linear feed

Multi-satellite		Description
	MSF-12	Dual beam multi-satellite feed retrofit for 3.7 meter size antennas
	MSF-16 series	Multi-satellite feed ring, bridge and spar hardware for 4.5 to 5 meter diameter antennas
	MSF-23 series	Multi-satellite feed ring, bridge and spar hardware for 6 to 7 meter diameter antennas
	MSF-25 series	Multi-satellite feed ring, bridge and spar hardware for 7 to 8 meter diameter antennas
	MSF-29 series	Multi-satellite feed ring, bridge and spar hardware for 9 meter antennas
	MSF-EXT/OMT	Multi-satellite feed extension for 2 degree satellite spacing with dual pol coupler
	MSF-CAS	Cassegrain reflector hole cover kit.
See AFC's Multi-satellite Feed Data Sheet for more details

Ku-band	Description
SPK	Single port receive only linear feed
DPK	Dual port linear receive only feed
TRK	Transmit, receive two port linear feed
TRKF	Transmit, receive two port linear feed with transmit reject filter
TRKM	Motorized remote transmit, receive two port linear feed
TRKFM	Motorized remote transmit, receive two port linear feed with transmit reject filter
C/Ku-band	Description
SPCK	C, Ku-band two port linear receive only feed
DPCK	Four port dual C, Ku-band linear receive only feed
DPCKM	Motorized remote four port dual C, Ku-band linear receive only feed

AFC manufactures, markets and sells worldwide satellite dish antennas, conical horn antennas, radomes, antenna feeds, microwave and waveguide components, ultra low loss waveguide transmission line Tallguide ®, and custom shelters. Our customers serve the broadcast, communications, radar, weather and cable industry, defense, government, and government agencies worldwide.

A site index of other AFC WWW documents related to antennas and AFC products may be found in Antennas for Communications (AFC) Home Page Document Summary List.

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