kali maira Panagiotis
Great, thanks for the use
of 50% of your first class diploma.
Your application is now much clearer. But to decide
how the patches are fed with RF we need to determine
if the antenna array is immediately integrated with
the oscillator sources or is placed some distance
away (more than a few cm). If it is integrated,
then a microstrip line and an edge connection through
a quarter wave transformer is called for. If it
is at a distance, then a semi-rigid coaxial line
and a rear feed through the ground-plane is better.
I will assume an integrated structure, and I will
look into what specifications of strip-line board
would be best. The choice is determined mostly by
the band-width you require for the signal. This
will be the fine-tuning range or modulation bandwidth
of the oscillators. Bandwidth and substrate height
from groundplane to trace are directly and almost
linearly proportional in patch antennas.
what is the full tuning range of the oscillators?
If fixed in frequency but they will be frequency
modulated, what is the likely frequency deviation
in % of center frequency?
Do you need to produce
a predicted radiation pattern for the array for
the thesis report?