Published July 10, 2006
You be the expert: The answers to the June Question of the Month are below
Charles Werner from Gamma Remote Sensing AG has submitted this month's question:
1. How good are direct digital synthesizers at generating FMCW signals? I am looking at a system that uses a frequency translation loop Analog Devices AD9858 to get output in the range of 2.1 to 2.3 GHz for an FMCW radar.
2. What is the best way to get this signal heterodyned to the range of 4.1 to 4.3 GHz and what configuration of mixer/LO is recommended/ required?
From: Earl McCune, Panasonic
From: Kaixue Ma, MEDs Technologies Pte. Ltd.
There are two ways to get this frequency: one is to use the frequency doubler in the output of the VCO. In my opinion, the best way is to use the sub-harmonic mixer connected to the VCO output to up-convert to 4.1 to 4.3 GHz.
From: Mujfarmiya Shaikh, Cranes Software International Ltd.
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