My monopole is a spiral monopole, and It's a small antenna but bandwidth is narrow. (5 MHz)
Do you have experience in this case: How to make it wideband?
Any paper suggested?
Many thanks
I can only refer to an application note that shows why the bandwidth of an electrical small antenna can't be increased without reducing the effciency. **broken link removed**
The AN is quoting an IEEE paper which derives the theory behind the statement J.S.McLean: A re-examination of the fundamental limits on the radiation Q of electrically small antennas, IEEE Trans Antennas Propagat, vol 44, pp672-675, May 1996
I can only refer to an application note that shows why the bandwidth of an electrical small antenna can't be increased without reducing the effciency. **broken link removed**
The AN is quoting an IEEE paper which derives the theory behind the statement J.S.McLean: A re-examination of the fundamental limits on the radiation Q of electrically small antennas, IEEE Trans Antennas Propagat, vol 44, pp672-675, May 1996