Selection of Suitable RF switch

Hello support team,

Please provide response.

Hello,

Any updates? Kindly request you to provide response ASAP.

I am afraid without specifying frequency band and power it is hard to suggest suitable switch.

Hello,

The frequency band is S Band. Tx frequency: 2.25 GHz, RX freqnucy: 2 GHz.

Power: 35 dBm for tx

Kindly request you to provide the type of switch , that can be suitable to be operated as per given diagram, in simultaneous tx and rx mode with different frequency as given.

I think, the RF switches at RF ports behave reciprocal thus they are suitable for full duplex operation. Have you checked HMC784A? It requires DC blocking capacitors.

Hello,

Yes I have checked HMC784A. It has a wide frequency range, which covers our both tx and rx frequency.

but, I have had the below confusion.

1. At a same time(simultaneously), there is a requirement of 2 operation. RFC to RX1(tx) with 2.25 GHz frequency and RF1 to RFC with 2 GHz frequency(rx)

As you have mentioned in the above that RF switched behave reciprocal i.e. it is possible to have simultaneous operation of RFC-RF1(tx) as well RF1-RFC (rx).

But, it(full duplex) operation can work with different tx and rx frequency, right?

Thank you for your support in advance.

Hello,

Yes I have checked HMC784A. It has a wide frequency range, which covers our both tx and rx frequency.

but, I have had the below confusion.

1. At a same time(simultaneously), there is a requirement of 2 operation. RFC to RX1(tx) with 2.25 GHz frequency and RF1 to RFC with 2 GHz frequency(rx)

As you have mentioned in the above that RF switched behave reciprocal i.e. it is possible to have simultaneous operation of RFC-RF1(tx) as well RF1-RFC (rx).

But, it(full duplex) operation can work with different tx and rx frequency, right?

Thank you for your support in advance.

maitry.raval@azistaaerospace.com said:

But, it(full duplex) operation can work with different tx and rx frequency, right?

Yes, I don't see problem here if the switch is not in power compression due to TX power (including peak power caused by high PAPR). 

Hello,

Thank you for your support.

Now, I can select a suitable SPDT switch from analog devices without any confusion.