Using a single antenna - duplexing tx/rx
Posted: Mon Mar 14, 2016 8:36 am
Hello,
I am working with OpenAirInterface and need to connect the BladeRF to a Huawei E392u-12 modem on LTE band 7, using a single RF cable (since the modem has a single antenna).
Later I will need to use a single antenna for tx/rx primarily in LTE band 7 (2500-2570 UL, 2620-2690 DL) and if possible (ideally using the same hardware), 2.4GHz band and possibly 5.8Ghz.
Is there no possibility to switch BladeRF to using a single antenna programmatically?
If not, what hardware should be used to duplex tx and rx together?
From what I understand a diplexer is not sufficient to multiplex the UL and DL channels of LTE band 7.
I have found some circulators and duplexers that should work but could be expensive or are surface mounted components.
In conclusion, as far as I can tell I need a duplexer/circulator with sma connectors but would like to know what is the standard hardware for this use and if there are any specific proposals.
Regards
George
I am working with OpenAirInterface and need to connect the BladeRF to a Huawei E392u-12 modem on LTE band 7, using a single RF cable (since the modem has a single antenna).
Later I will need to use a single antenna for tx/rx primarily in LTE band 7 (2500-2570 UL, 2620-2690 DL) and if possible (ideally using the same hardware), 2.4GHz band and possibly 5.8Ghz.
Is there no possibility to switch BladeRF to using a single antenna programmatically?
If not, what hardware should be used to duplex tx and rx together?
From what I understand a diplexer is not sufficient to multiplex the UL and DL channels of LTE band 7.
I have found some circulators and duplexers that should work but could be expensive or are surface mounted components.
In conclusion, as far as I can tell I need a duplexer/circulator with sma connectors but would like to know what is the standard hardware for this use and if there are any specific proposals.
Regards
George