Antennas "e plane" and "h plane"

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Jun 25th, 2008
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Hi Guys,


Does anyone care to chat about what the above is ? It is all in double-dutch?


I just want to ensure that if I am designing a radio network, I need to understand the antenna paterns.


Does every single antenna have an E and H Plane?


Does anyone have any good links?


Many thx indeed,


Ken

Correct Answer by Scott Fella about 8 years 10 months ago

The 5959 antenna has two antennas built into one unit. This give you the ability to use diversity. The 5145 also has two antennas, but since the 5GHz 5145 has the same pattern, they show only one. It can be how the antenna is made or the housing it's in that throws off the pattern. Remember, 5GHz is more susceptible to attenuation than the 2.4GHz. Just read up on antenna patterns if you are really interested in knowing how the come up with that.


horizontal/azimuth plane

vertical/elevation plane

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Scott Fella Wed, 06/25/2008 - 03:57
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Rob Huffman Wed, 06/25/2008 - 05:01
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Hi Ken,


I have to agree Scott, (sweet docs!) +5 points for your always helpful info. I just thought that I would add this doc that does show these patterns in most if not all Cisco Antennas;


From this Antenna reference guide;


http://www.cisco.com/en/US/products/hw/wireless/ps469/products_data_sheet09186a008008883b.html


Hope this helps!

Rob



kfarrington Wed, 06/25/2008 - 05:20
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Scott. This is an excellent doco also - many thx


Question on this - the air-ant5959 which we are using for 2.4gHz shows left antenna and right antenna patterns. with both planes on? why is this?


the other antenna I am using AIR-ANT5145V-R shows the Azimuth Plane Radiation Pattern (H plane correct) and the Elevation Plane Radiation Pattern (E plane correct).


Why are they different.


I am really sorry, the only antenna I have ever seen before wifi was my stereo and i know not much about any of this stuff?


Many thx indeed,

Ken


ps. 5 points. now i just gotta go and read it all. Its a big old doco :)

Correct Answer
Scott Fella Wed, 06/25/2008 - 05:31
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The 5959 antenna has two antennas built into one unit. This give you the ability to use diversity. The 5145 also has two antennas, but since the 5GHz 5145 has the same pattern, they show only one. It can be how the antenna is made or the housing it's in that throws off the pattern. Remember, 5GHz is more susceptible to attenuation than the 2.4GHz. Just read up on antenna patterns if you are really interested in knowing how the come up with that.


horizontal/azimuth plane

vertical/elevation plane

kfarrington Mon, 06/30/2008 - 06:08
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Mate, SPOT ON :))


That is a great link. Its making my brain blue screen a little but has all the info you need :)


Many thx indeed,

Ken

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