Dolph has developed a comprehensive line of antenna feeds covering C, X, Ku and Ka bands. The devices in these assemblies are precision machined from aluminum or copper and offer very high performance at a very competitive price. Each device is tuned to meet exacting electrical specifications. Additionally, entire feeds are assembled and tuned as a whole to provide superior performance compared to individually assembled components that are not tuned as a unit. Dolph can provide either complete feeds or standalone devices. Please call us with your specification and discuss your needs with one of our sales engineers.
Note: Take C-Band Offset Feedhorns as an example.
Ext. C-Band Offset Feedhorns for VSAT f/d = 0.575 | ||
Ext. C-Band Offset Feedhorns for VSAT f/d = 0.575 5.85 GHz to 6.725 GHz/3.4 GHz to 4.2GHz | Model: DH-Feedhorns-Ext.C-f/D=0.575 | |
Frequency Range | -Rx 3.4 GHz to 4.2 GHz -Tx 5.85 GHz to 6.725 GHz | |
VSWR | 1.2:1 | |
Insertion Loss | max. 0.15 dB | |
Circular WG Flange Interface | Φ19 mm | |
Antenna Type | Offset | |
F/D | 0.575 | |
Material | Al with Conductive oxidation | |
Finish | White Paint (standard) | |
Operating Temperature | -50° C to 85° C | |
Microwave feedhorn is a small horn antenna used to couple a waveguide to, for example, a parabolic dish or an offset dish used to receive or transmit microwaves. A typical application is the use of satellite dishes to receive satellite TV.
Microwave feedhorn is basically a horn antenna that sits between the transceiver and the antenna reflector in a satellite antenna system. When a signal from a satellite is received, the signal is reflected from the parabolic antenna to the feed horn, where it is passed to a low noise block (LNB) where it is downconverted and further processed. The feed horn provides a certain level of gain and is designed to support a specific type of polarization so that it can filter out unwanted signals by allowing only certain polar waves based on the polarization of the horn antenna.
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