Jone
Advanced Member level 4
I've seen the following relation between bandwidth, Q-factor and SWR:
BW = (SWR-1)/(Q√SWR).
See for example Pozar's article, Microstrip antennas: the analysis ... - Google Books
Then for the -3 dB bandwidth (SWR = 5.85) the expression reduces to BW = 2/Q, instead of 1/Q, as I was hoping for. Is that expression incorrect or what's going on here?
BW = (SWR-1)/(Q√SWR).
See for example Pozar's article, Microstrip antennas: the analysis ... - Google Books
Then for the -3 dB bandwidth (SWR = 5.85) the expression reduces to BW = 2/Q, instead of 1/Q, as I was hoping for. Is that expression incorrect or what's going on here?