raymondli
Electrical
- Nov 10, 2002
- 11
Hi all,
I design dual-band microstrip antenna using the formula of Freq=light speed / 4( length+width) for both lower and higher operating freq. There is a U-shaped slot on the radiating element........
However, it seems that the higher freq one always has a narrower bandwidth.......narrower than the lower freq one. So I want to find out what method can do improvement on its bandwidth for the higher operating freq?????
I design dual-band microstrip antenna using the formula of Freq=light speed / 4( length+width) for both lower and higher operating freq. There is a U-shaped slot on the radiating element........
However, it seems that the higher freq one always has a narrower bandwidth.......narrower than the lower freq one. So I want to find out what method can do improvement on its bandwidth for the higher operating freq?????