Thanks for the tips on seeming brilliant!
I often hear wonderful complements like " oh yeah... you're a freakin Genius"
So your suggestion should only enhance the effect I have on people.
groundhog
Thanks Bill.
The rectangular patch with the probe feed on the diagonal (almost) is a very common CP design. They radiate on all four edges rather than the two for regular patch antennas.
Also, in my lab with the network analyzer, using two of these identical antennas, I am getting good RHCP...
The antenna radiates RHCP.
The ground plane is not much bigger than the patch. Substrate er=10.
At the network analyser in my lab, I used two bare antennas.
I rotated 360 degrees or more.
What you see in the S21 display is like a wave in the ocean when you rotate it, with the center fo point...
I built up a plain rectangular patch antenna with the probe feed on the diagonal to set up circular polarization.
Using my network analyzer, and putting itentical antennas on both ports, everything looks fine to me. I can rotate the antenna and at center freq, the insertion loss between the...
Higgler,
Are you saying that it can be done simultaneously or are you saying you can pick one or the other in a switching action?
I mapped out the currents on the patch and fields in space, and they seem to cancel in the simultaneous case.
But then I talked to a friend at work with a much...
Hello,
I am trying to make a standard almost square patch with probe feed, where the feed is kind of along the diagonal of the patch.
To simulate/measure axial ratio, I put in a very small pickup dipole element with impedance of 377 some distance from the antenna under test (AUT) face. Then I...
Thanks VE1BLL for the tip.
I mapped out the fields on a patch and as you suggested, and it looks like you get linear polarization (or total cancelation depending on how things are phased).
groundhog
Is it possible to do a patch antenna with both Left and Right hand circular polarization?
Say you had a square, probe fed circular patch antenna. You put the probe feed somewhere on the diagonal to match and create the circular polarization. What if you put another probe on the other diagonal...
I thought of this later, but shouldn't I be able to go to the references and just unclick those items?
I did create bmp cartoons of the test setup in Visio, but I don't see why the spreadsheet really needs those dll files.
groundhog
Yes that did it.
My fight-or-flight panic response is going down now.
It needed some Visio dll files.
I have Visio on my desk computer, but not on the mfg machine.
Thankyou,
groundhog
Yes, it seems I am missing some Visio dll files.
It shows
missing VIsio 11 type
missing Visio 11 dwg cntl
They reference dll files and i will put them on the new computer.
I developed my first Excel program and it works great on the computer on my desk. Last night I tried to run it on the manufacturing computer and it has a compile error.
I can't totally remember the error message and I am not at work right now, but I will update this post shortly. It make me...
I want to thank you all (joerd, johnwm.. ) for your help and suggestions. My little program has chugged through it's first real production unit and all I saw was pass, pass, pass...
Still some improvements to be made, but it is pretty much a useful tool now.
Thanks. I have thrown in some...
joerd,
do you have a sample of the code you are describing to put a name to a cell location? Is it as simple as:
Variablename = Cells(1,1)
thanks,
groundhog
