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Transceiver Switch - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


demet
Post subject: help: transceiver switch
Unread postPosted: Mon Jun 21, 2004 2:23 pm
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Lieutenant

Joined: Mon Jun 21, 2004 1:55 pm
Posts: 1
hello there! i have a big problem in what switch or switching technique to be used regarding our Radio Frequency Identification (RFID)Reader/interrogator which is a transceiver.

we wanted to increase the read range or the effective area where our RFID can read the RFID tag...so we design and build an amplifier for transmit and receive operation (though we still don't know if it will work when integrated with the circuit). Modulation used for communication from reader to tag is amplitude shift keyingn and loading modulation from tag to reader.

It happens that our RFID reader/interrogator have only one node for transmitting and receiving signals/data. is there any way to synchronize the switching of the transmit and receive amplifier? is there a device that can disable and isolate the receive amplifier during transmit mode and vice versa.

please help me...thank you very much!


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Guest
Post subject:
Unread postPosted: Mon Sep 27, 2004 1:47 pm

Check out Sirenza and RF MicroDevices.


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Guest
Post subject: Try using a diversity switch
Unread postPosted: Tue Sep 28, 2004 10:07 am

It sounds like you need a diversity switch. Hittite Microwave Corporation have several. I would try and call them.


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RF Slave
Post subject:
Unread postPosted: Sun Oct 03, 2004 4:46 am

use MACOM, Skyworks RF Switches or use discrete PIN Diodes for Switching.



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