EMRFD Message Archive 2981

Message Date From Subject
2981 2009-05-04 04:36:06 Stan Balanced Mixers advantages or disadvantages

Balanced Mixers (and Detectors) with balanced input and output stages to the mixers question.

Is there an advantage to using a I/O balanced circuit with a ring detector or balanced mixer? Does it affect the over all gain of the RF chain?

Can anyone point me to a technical reference that discusses the advantages or disadvantages?

Thanks, Stan ak0b

2982 2009-05-04 08:16:10 Kenneth Stringham Re: Balanced Mixers advantages or disadvantages

Stan,

Mini-Circuits has a substantial document that covers
mixers, at least they did. I haven't been active in this area for some
time now.

Concerning balance, balanced mixers reduce even order
products and suppresses the RF and LO signals reducing the filtering
requirements. Care taken to signal levels will further improve
performance.

The disadvantages are the increase in complexity in the circuitry and the requirements for better shielding.

Ken - AE1X

2981	2009-05-04 04:36:06	Stan	Balanced Mixers advantages or disadvantages
Message	Date	From	Subject
Balanced Mixers (and Detectors) with balanced input and output stages to the mixers question. Is there an advantage to using a I/O balanced circuit with a ring detector or balanced mixer? Does it affect the over all gain of the RF chain? Can anyone point me to a technical reference that discusses the advantages or disadvantages? Thanks, Stan ak0b
2982	2009-05-04 08:16:10	Kenneth Stringham	Re: Balanced Mixers advantages or disadvantages
Stan, Mini-Circuits has a substantial document that covers mixers, at least they did. I haven't been active in this area for some time now. Concerning balance, balanced mixers reduce even order products and suppresses the RF and LO signals reducing the filtering requirements. Care taken to signal levels will further improve performance. The disadvantages are the increase in complexity in the circuitry and the requirements for better shielding. Ken - AE1X