Hayrat Akmj

9 Questions 16 Answers 0 Followers

Questions related from Hayrat Akmj

How to see insertion loss of differential pairs in HFSS?

Below pictures are my design of a transmission line, for this simulation I set driven terminal. As you can see one side of the transmission line is differential pairs, another is single ended. If...

11 July 2019 6,534 5 View

Normally How many Tx and Rx on the Automotive radar PCB?

Here I am gonna ask a really stupid question, but I don't accept stupid answers. These days, I got chances to "play" with some automotive radar PCB (not assembled one, I do not have the chip's...

21 June 2019 8,811 1 View

Grounding vias is conductor backed coplanar wave guide?

I gotta admit I am rookie in this field. In my current working, I am encounter with some problems, I designed transmission line, grounded coplanar waveguide, return loss is not bad but insertion...

15 May 2019 4,194 8 View

Power loss on transmission line

I am a rookie in RF, Here is how I think of the loss of power between point A to point B (two points of the transmission line). First, not all the power can "get on" the transmission line, some...

01 January 1970 7,421 3 View

Power loss on transmission line

I am a rookie in RF, Here is how I think of the loss of power between point A to point B (two points of the transmission line). First, not all the power can "get on" the transmission line, some...

01 January 1970 9,887 3 View

Surface roughness vs insertion loss?

Here is a question, I simulated a grounded co-planar wave guide (conductor-backed) on HFSS with different surface roughness, 0.3 um, 0.6 um and 0.7 um (only the top layer of the copper, dielectric...

01 January 1970 5,947 5 View

Extracting Attenuation constant from parameters?

I want to know the attenuation constant of a microstrip line. And I measured s11, s21, s22. Can I draw attenuation of the line by subtracting both mismatch losses at the port and the load from s21...

01 January 1970 5,928 3 View

Size of wave port in HFSS

Here is a problem, I am simulating a grounded coplanar waveguide with width of 0.29mm, space between trace and top ground is also 0.29mm, on the 0.127mm thickness substrate (3.0 of permitivity) at...

01 January 1970 5,046 7 View

Dielectric constant to Insertion loss

I found for microstrip line that the lower the dk the lower the insertion loss can be, given to the "matched" condition. Why is that? is it because of the wavelength are longer in lower dk...

01 January 1970 3,670 2 View