Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

confused about antenna radiation patterns and the the information it provides 1

Status
Not open for further replies.
agent38

agent38

Electrical
Joined
Jun 19, 2012
Messages
7
Location
US
Can someone please help me understand what my attached antenna directivity "relative" plots are telling me?



For starters I would like to know:

1) Since the E-Plane directivity plot describes the vertical/elevation pattern, what does that truly mean to me? I dont have a clue? Does this mean if the antenna is in its vertical position my most concentrated energy will be pointing to the sky and to the earth?

2) Since the H-Plane directivity plot describes the horizontal/azimuth pattern, what does that truly mean to me? I dont have a clue? Does this mean if the antenna is in its horizontal position my most concentrated energy will be pointing to my left and right?

If I am using a antenna am I occupying both E and H planed equally or am i spending more of my time in a particular plane more than another?

If I am holding my antenna in the vertical/elevation plan do I only have the vertical/elevation energy available to me or do I also have the horizontal-azimuth energy as well?


I understand the difference between Vertical/Elevation and Horizontal/Azimuth. I just dont understand what the radiation pattern is telling me about the energy, if that makes sense.

Any advice is appreciated.
 
Sort by date Sort by votes
Its a collinear microstrip antenna for 2.4GHz.


4 radiating elements: 1)vertical 2)horizontal 3)vertical 4)horizontal
 
Upvote 0 Downvote
Also the 4 radiating elements are on a pcb
 
Upvote 0 Downvote
There's a good explanation on wiki HERE.

Both plots you uploaded are for "J1". I presume that's one of the inputs corresponding to oen or more of the elements. You'll need to figure out that detail before it'll all fall into place.

 
Upvote 0 Downvote
The reason people specify E plane and H plane is that it's antenna patterns relative to the antenna. Hence, you can orient the antenna anyway you want and you'll know how the antenna radiates.

What's missing from your plots is a picture of the antenna, with E or H plane arrows (E plane is common, it's the direction the electrons move). So that's confusing and really needs to show the antenna.

Hence, you should be at least a little confused since info is missing.
If somewhere it says E plane is elevation, then likely the antenna sits flat, like on a desk, and elevation cut is an up/down plot in elevation, where H plane cut is along the horizon.
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

John.Jin
  • Locked
  • Question Question
Excellent wideband and low corss polarization @ phi=45 antenna
Replies
0
Views
1K
John.Jin
John.Jin
Alexander Morozov
  • Locked
  • Question Question
On the control of the electromagnetic field in a space. Continuation.
Replies
2
Views
1K
Alexander Morozov
Alexander Morozov
Alexander Morozov
  • Locked
  • Question Question
On the control of the electromagnetic field in space
Replies
0
Views
783
Alexander Morozov
Alexander Morozov
DougBC
  • Locked
  • Question Question
4NEC2 Antenna Program: Patch definition and wire connections
Replies
1
Views
1K
khiggler
khiggler
CuriousElectron
  • Locked
  • Question Question
Telemetry Antenna Mounting Height
Replies
2
Views
862
robertjo24
robertjo24

Part and Inventory Search

Sponsor

Back
Top