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Dual antenna and one coax cable
Is it possible to place 2 different antennas (selected from your catalogue) for different application and frequency range (for instance: BLE antenna and ISM 868MHz antenna), and connected to one only 50ohm coax cable? I have to design and place a combiner (mix) before the antennas and coax cable, and a demix after coax cable.

For sure I will get more insertion loss by this solution, but my question is this: is it possible or not? Which other issues could happen? Please take into account that the two signal in different frequency range will be filtered enough in order to avoid interferences.

Thank you.

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1 Answer

answered by
Yes, this is possible with a chip splitter. They are available ready for SubGHz and GSM 1800 or SubGHz and GSM 1800 to 3000 GHz. The loss is about 0.5 dB. If you have problems with the integration you can contact me with your budget. harald.naumann (at)
commented by
Thank you Harald for your kindly reply. I will do some test in next weeks.

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