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Taking a look at every kind of EMI antenna

Posted: 06 Aug 2015 ?? ?Print Version ?Bookmark and Share

Keywords:ETS-Lindgren? EMI? antenna? testing? hybrid?

Hybrid antennas

Hybrid antennas, also called Bilog, Biconilog and other names, combine a biconical element with a log-periodic element. The combination lets you run tests over a wider range of frequencies than you can with either single-type antenna. That saves test time because you don't have to change antennas as often. These antennas are popular for precompliance and troubleshooting radiated emissions and immunity. Some antennas have bent biconical elements that help them fit into small spaces. EMI test labs are starting to use hybrid antennas for compliance tests. "Most standards are slowly accepting this type of antenna for compliance testing," noted Travis Samuels of A.H. Systems.


Currently the newest hybrid antenna from ETS-Lindgren, the 3140B covers 26MHz to 3GHz. For immunity tests, the 3140B can handle input signal power up to 300W.

CBL 6111

Teseq's CBL 6111 covers 30MHz to 1GHz for both emissions and immunity. As an immunity transmitting antenna, it can handle up to 300W. Other models in the Teseq BiLog line have bent biconical arrays and can support inputs up to 600W.

SAS-521F-7 Bilogical antenna

Covering 25MHz to 7GHz, the SAS-521F-7 Bilogical antenna from A.H. Systems support input signals up to 400W for immunity testing.

JB6 from Sunol Sciences

The JB6 from Sunol Sciences covers frequencies from 30MHz to 6GHz. Other models in the JB series top out at 2GHz and 3GHz.


This Compact Hybrid antenna, the HLP-3003C from TDK RF Solutions, has the shortest antenna length if any hybrid EMI antenna. It's dimensions are 156cm wide, 71cm deep and 69cm high.

AC-220 Combilog antenna

The AC-220 Combilog antenna from Com-Power covers 30MHz to 2GHz with 500W capacity for radiated immunity tests.

HyperLog 20600

Aaronia's HyperLog 20600 covers 20MHz to 6GHz and can handle input signals to 310W.

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