dopradar
Member level 5
Hi all,
Recently I am tunning a LNA, which should work at 50-900MHz.Now gain and VSWR are ok.I have set high bias-point and Emitter series with inductor to improve IIP3. but IIP3 is only -4dBm at 50MHz, 3dBm at 600MHz and 6dBm at 860MHz. So how to improve it?
and another method to improve IP3 is make a tradeoff between Gain and Linearity,but how to realize it? Does decreasing gain mean IP3 improving undoubtedly ?
Thanks!
B&R
Recently I am tunning a LNA, which should work at 50-900MHz.Now gain and VSWR are ok.I have set high bias-point and Emitter series with inductor to improve IIP3. but IIP3 is only -4dBm at 50MHz, 3dBm at 600MHz and 6dBm at 860MHz. So how to improve it?
and another method to improve IP3 is make a tradeoff between Gain and Linearity,but how to realize it? Does decreasing gain mean IP3 improving undoubtedly ?
Thanks!
B&R