What I mean is, are there different shapes of slots such as U,T,E,...etc...
Is there a particular formula which we can help cut a particular slot of that dimension (length, width)?
formula is not available for cutting to slot but when u use fhss .u need to use hfss parameter of hfss carefully
What did yiu mean by HFSS parameters sir?
Is it trial error method like?
It depends, somes obtain the design of slots based on trial and error
Some based on equation, or equivalent LC component based on slotsetc.
Thank you~
To Dewan,
Can you please suggest me some research papers which has the formula?
Regards
Exact formula is not possible to derive, however, non homogeneity in a media creates situation of multiple resonance response due to creation of multiple LC network and also it creates secondary source radiation. Length/width are more on a gut feel/trial bases. As a rule of thumb you may take of the order of 1/20th part of wavelength
I think in the Transmission Line Method; you can find some formulas about Slots based on its circuit model
To Ahmed,
Please suggest me the book or IEEE papers if possible.
Regards,
There is a book talking about slots. I'll try to find it and send you the title and the authors.
In the other hand, you may find something in the book of Balanis, regarding slots cut in a rectangular waveguide. You can go to IEEE and search for slot antennas, I am sure you'll find plenty of équations. Some people use trial error method too.
Regards
slot impacts on the resonance is based on radiating element which u choose . i.e rectuangular ,square, circular or triangle patch . and another parameter is feed method. which method u feeding the antenna whether the probe feed or microstrp feed etc. so wch type of radiating elements and feed method u used..?
Shapes of slots depends on required impedance ,total band width and center frequency
To Mr. Sundaram,
Do you know any formula which relates to these parameters ??
Some trail soft wares are available in the Net .Some patches are available for Matlab where u can simulate also.
To Mr. Sundaram,
Can you suggest me some name of it, so that i can try it?
The purpose of cutting the slot is to enhance the bandwidth of particular design of microstrip antenna. Also the slots width & length depends on radiating element as well as feeding techniques.
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