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Efet of dielectric media on microstrip antenna

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graciousparul

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Hello everyone


What if we change the parameter( for eg: relative permeablility) of a dieletric medium on Microstip substrate ?
As I am working on the following project (M.Sc Electronis Final year project)"simulation studies of Microstrip antenna by dielectric loading ".
 

Depending on your design, loading the antenna with a dielectric results in shorter wavelengths propagating in the substrate.
This usually translates to the following effects:
- decrease in input impedance.
- for the same size, resonance frequency decreases. (this means that you can have a smaller antenna to resonate at the same frequency)
- slightly poorer gain, as more energy is trapped in the substrate and increased losses due to surface waves.

There should be more, but off-hand, this is all i can think of for now. Good luck!
 
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