How does a ceiling antenna works?

[kayaoo]

s2402ps12mmx

hi all,
The ceiling antennas used in communicaion usually have a very wide E plane and a omni directional H plane which are all much wider than a simple P atch antenna. How are they realised?

 

[Element7k]

Hi kayaoo,

can you give an example of the ceiling antenna so we can all investigate?

Cheers,
Element7k

hi all,
The ceiling antennas used in communicaion usually have a very wide E plane and a omni directional H plane which are all much wider than a simple P atch antenna. How are they realised?

 

[kayaoo]

Hi kayaoo,
can you give an example of the ceiling antenna so we can all investigate?

oh,That's what i want too. I search on the google but can not find a useful paper. Some of the ceiling antennas are stub monopoles. but Some of them have a very small height and can not be a simple monopole.here is a sample.
http://www.cushcraft.com/support/pdf/S2402PS12MMX.pdf

 

[mogwai]

Another very peculiar antenna design is this one:

http://www.hubersuhner.com/sp-rf-ant-prod-db-spa_0859_360_4_10_v_en.pdf

Huber-Suhner Sencity Art Antenna

I have seen this model last March in Cebit-Hannover and the engineers at H&S told me the concept of the design is kept as an industrial secret

mogwai.

 

[ghb]

given its size
- sounds planar

given its manufacturer (cushcraft)

- should be straightfoward and cheap to produce
- cheap substrate (if any)

missing polarization specification

- could it be mixed?

i'll think about a design with these guidelines

 

[Element7k]

Hi,

this antenna was featured in Microwave Journal sometime ago (size quite big though) (I think sometime in summer 2003) and if I remember, it did give a quick explanation of how the antenna works. Basically, it is derived from a flat plate to obtain broadband response. It has something to do with the size of the gnd plane and the height and flare of the plate away from gnd. Also an article about a similar type but not bended antenna can be found if you search for author Max Ammann in the IEEE website (I think he wrote an article in the antenna and propagation magazine.

Cheers,
Element7k

Another very peculiar antenna design is this one:

http://www.hubersuhner.com/sp-rf-ant-prod-db-spa_0859_360_4_10_v_en.pdf

Huber-Suhner Sencity Art Antenna

I have seen this model last March in Cebit-Hannover and the engineers at H&S told me the concept of the design is kept as an industrial secret

mogwai.

 

[mogwai]

Amazing information Element7k

You were right. MWJournal July 2003 article about ultrawideband antenna with style by Huber-Suhner... hehe
It's the same antenna that I was talking about...

With brief design guidelines and a reference from Antennas & Prop. Trans.

Take a look:

**broken link removed**

(you need to subscribe for online view...)

Hi,

this antenna was featured in Microwave Journal sometime ago (size quite big though) (I think sometime in summer 2003) and if I remember, it did give a quick explanation of how the antenna works. Basically, it is derived from a flat plate to obtain broadband response. It has something to do with the size of the gnd plane and the height and flare of the plate away from gnd. Also an article about a similar type but not bended antenna can be found if you search for author Max Ammann in the IEEE website (I think he wrote an article in the antenna and propagation magazine.

Cheers,
Element7k

 

[kayaoo]

hehe,a really novel design! But is it too big for ceiling mount?