Hilal Koc Polat

4 Questions 3 Answers 0 Followers

Questions related from Hilal Koc Polat

How is the antenna bandwidth interpreted if the S11 graph cannot go above -10 dB?

I tried to design UWB antenna. I obtained S11 graph in below figure. The graph goes below -10 dB at 1.93 GHz but does not go above -10 dB at any frequencies. I ran the program for the 0.1-50GHz...

16 September 2021 6,782 0 View

I send a laser light to use the photo diode as a switch, but I can't obtain the on / off states. Why?

I designed 3 different microstrip lines given below and measured S21 parameters via Network. The S21 measurement of the microstrip line in the on.jpg file is close to 0dB. The S21 measurement of...

30 January 2020 7,126 0 View

How using Agilent FieldFox VNA as a signal generator?

I want to take output power from the VNA to feed antennas? But I' m not using VNA as a signal generator.

21 February 2019 5,290 3 View

Why is the antenna designed for a single frequency oscillate at multiple frequencies?

Although we determine the size of the microstrip antenna for a single frequency, why it seems to have a resonance frequency on more than one frequency? Is there an antenna function at each...

14 February 2019 5,193 4 View