Electronics > RF, Microwave, Ham Radio

LDMOS new future AMPS?

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warnberg:
Anyone doing any experimentation with these?  LDMOS.. starting to see plans, schematics, etc... popping up using LDMOS.

NXP Unbreakable BLF578XR: http://www.nxp.com/pip/BLF578XR.html

David

KJDS:
I've done a lot of work with LDMOS, anything specific you want to know?

uncle_bob:
Hi

LDMOS has been around for a long time. There are a number of people making it. It's been the goto item for PA's for at least a decade.

Bob

KJDS:
Unless you have access to a decent RF simulator, including planar EM, and the ability to tune the design looking at output P1dB and efficiency at the same time, then it's unlikely you'll get close to optimum performance.

kazam:
I would like to suggest Keysight ADS for non-linear simulations and Ansys HFSS for final tuning of matching circuits in simulation.

It's very difficult to hit optimum impedances without these tools. You're way out in the Smith chart.

/K


--- Quote from: KJDS on February 15, 2016, 08:31:34 pm ---Unless you have access to a decent RF simulator, including planar EM, and the ability to tune the design looking at output P1dB and efficiency at the same time, then it's unlikely you'll get close to optimum performance.

--- End quote ---

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