Transmitter and Receiver sharing antenna, 433MHz

Hi,

I'm designing a pcb with both transmitter and receiver for 433MHz and I would like to use only one antenna for both. The transmitter and receiver are ASK and I do not need to send and receive simultaneously, the transmitter is ~10mW.
How do I design a switching/combining circuit?

// Fredrik

please give more info.... schematic......etc...

You can use simple circuit.
Use SPDT to switch between Tx and RX.
i.e common poet connecting to 433Mhz antenna, one end to Tx and the other to RX.

I would like not to use a relay, maybe something like this; http://www.abacom-tech.com/Antenna-S...SW-P93366.aspx, but intgrated on my own pcb... any ideas what's on the abacom module?

Here are some electronic SPDT switches:
http://www.datasheetdir.com/RF-Switches

You could also build your own switch with PIN diodes.

the link u have given is


The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

GaAs MESFET are state-of-the-art for Rx/Tx switches, e.g. RFMD RF2436
http://www.rfmd.com/CS/Documents/2436DS.pdf

HMC546LP2 from Hittite. Good for TDD system.

hi i want to control rc helicopter through laptop as well as video transmission over it so i need a FR transceiver
capable of trans/receiving video data as well as controlling the helicopter atleast of 1km range . . kindly help me out which transceiver i use . . .