Need a Switch or MUX ro something to realize transceiver.

[X.Y.]

we want to use an Antenna to transmit and receive signal. The Block
Diagram of our Demo can be found on the following link:
http://picasaweb.google.com/Hector.BIT/Technic#5242928559321154466
So, maybe a Switch or MUX is needed. Any suggestions? Thanks in
advance.
In this system, the frequency of carrier is from 1MHz to 10MHz. The
transmit power is very low but the voltage is approximately 100v by
resonance.

 

[Bob]

we want to use an Antenna to transmit and receive signal. The Block
Diagram of our Demo can be found on the following link:http://picasaweb.google.com/Hector.BIT/Technic#5242928559321154466
So, maybe a Switch or MUX is needed. Any suggestions? Thanks in
advance.
In this system, the frequency of carrier is from 1MHz to 10MHz. The
transmit power is very low but the voltage is approximately 100v by
resonance.

The easiest solution would be to use a relay.
For 10Mhz you don't need to worry about using an RF relay.
You may need switching delays to make sure you don't blow
up your receiver.
A relay will take a signifiant fraction of a second to
switch over, might not be suitable for your application.
100volts is a bit high for PIN diode switching, perhaps there is
a lower impedance point before you matching network
that is a better place to switch.

You appear to be posting from China. Maybe you can get away
with splattering energy around 1-10MHz.
In the USA I think you have to be under 30microvolts/meter at
30meters to operate an intentional radiator without a license.
If you have 100V on your antenna you will probably be over
that limit.

Bob