High gain microstrip 2.4 GHz antenna

Status
Not open for further replies.
M

mohammaddmt

Newbie level 6
Joined
Jul 3, 2012
Messages
12
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,370
Hello.
I want to design a high gain planar antenna at the Frequency of 2.4 GHz.
the only limiting factor of this design is that the size of the antenna is limited to 30mm*40mm.
what kind of microstrip antennas or what method of increasing gain in such an antenna do you suggest?
I will be happy to get a feeback from you.
Regards.
 

Using the lowest possible permittivity substrate and perhaps a gain-enhancing superstrate are probably your best options.
 

Here is an option:
 

Attachments

  • inv_F.gif
    25.5 KB · Views: 143

Hi

If you are not completely restricted in the z-direction, there is the option of doing stacked patch.
If it has to be completely plannar, I only know using arrays, which will make it larger.
 

I think the question is: what radiation pattern is required? "High gain" sounds like directional (possibly patch), PIFA is rather omnidirection. Both have advantages, it really depends on the application.
 

To get the maximum possible gain from a normal patch antenna the resonant length of the patch should be about λ/2 (slightly shorter due to the extended electric fringing fields).
That means the length should be about 60mm, which is more than the required dimensions.
A smaller patch than λ/2 may have less gain in a particular direction than an inverted-F antenna.
 

vfone said:
That means the length should be about 60mm, which is more than the required dimensions.
Click to expand...

But that's for a theoretical patch with air dielectric. With actual substrates, the size would be ok.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…