Design of a High Gain microstrip array antenna

[sargol3403]

high gain microstrip array

Hi All,
I want design and simulate a microstrip array antenna with these specifications:
1) Frequency : 5 GHz - 6 GHz
2) Gain : 25 dB - 27 dB
3) Polarization : Linear (diagonal)
4) Max Dimension : 50 cm * 50 cm
How many patches should be used?
What Type of Substrate is better?
Can the CST MWS software simulate it?
Plz Guide me.
Thanks

 

[rotmanlens]

sajidmiya

hi since you dont have restricitions on bandwidth.this will be much more easy.since a perfectly matched patch shud give you around 5.6 to 6.2 dB increasing the size doubles the gain
for two patches it shud be an average of 9 db and when u place them in plannar array u shud get 12 dB and when u double it making it 4*4 makes it 15 dB and as u keep on .you gain will increase but since mutual coupling kicks in due to increase in the number of elements the resonant frequency keep changing but since you have a band of frequenices to work it shudnt be a big deal.
i would recommend you to go rogers 5880 εr=2.2 20 mil.coz this substrate has the lowest loss tangent.

if you have any furhter questions let me know.here's my id:sajidmiya@yahoo.com
hit me up may be if i have sometime i will do a sample for ya.

regards
sajid mohammed.