amberhue
Newbie level 1
HFSS wideband monopole array VSWR>2?
Hi guys!
just a question, I have designed the monopole array using HFSS for GSM900 & GSM1800. However for GSM1800, the VSWR isn't quite desirable. It has a spike (peak) at 1.7-1.8GHz which exceeded the optimal value of 2. The VSWR values for other frequencies are fine, they hover around 2. I cannot find the problem with my design, hopefully you guys can share some pointers with me. many thanks in advance!
Attached is my HFSS file and perhaps i connected the SMA wrongly.
View attachment yagi-uda monopole array.rar
Hi guys!
just a question, I have designed the monopole array using HFSS for GSM900 & GSM1800. However for GSM1800, the VSWR isn't quite desirable. It has a spike (peak) at 1.7-1.8GHz which exceeded the optimal value of 2. The VSWR values for other frequencies are fine, they hover around 2. I cannot find the problem with my design, hopefully you guys can share some pointers with me. many thanks in advance!
Attached is my HFSS file and perhaps i connected the SMA wrongly.
View attachment yagi-uda monopole array.rar