Twenty years go microwave amps of 1 W or more power output were all TWTAs. Nowadays a 10 W amp or less from 1 - 2 GHz could be solid-state. I have no experience with those personally. Do you still have to illuminate that 1.5 m square above 1 GHz? Then you would need a very powerful amplifier like you use below 1 GHz, and that would likely be a TWTA.* Then the question becomes whose TWT and how good is the power supply and protection circuitry. If you are buying a TWTA from any of the vendors you listed, it might be worth checking this out, especially if they are private labeling another company's amps. At one time, not that long ago, NONE of these companies sold amps operating above 1 GHz.
*There is no technical justification for illuminating a 1.5 m square in the microwave bands. The decision ought to be based on economics. If you can illuminate the entire quiet zone, then the test is more quickly accomplished. If you can only illuminate a 1 foot square, then you have to scan the entire set up and the test takes longer, but you get by with a less expensive more reliable amplifier... ---------- >From: umbdenst...@sensormatic.com >To: emc-p...@majordomo.ieee.org >Subject: 2 GHz Amplifiers >Date: Tue, Sep 18, 2001, 7:43 AM > > > Hello Friends, > > In searching for the best value for power amplifiers for the 2 GHz radiated > immunity limit. I have come across a few vendors that I am not personally > familiar with. I have used Amplifier Research and Schaffner/Chase products > at other frequencies and have been satisfied with the products' performance > and reliability. I have found additional vendors listed below and was > wondering if anyone had any experience with them (performance, reliability, > customer service, warranty, etc). > > AFI > Comtech PST > IFI > Kalmus > > > Comments appreciated. > > Best regards, > > Don Umbdenstock > Sensormatic > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > > All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the old > messages are imported into the new server. > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
