Radiation pattern of Cisco antenna's

admar.schoonen · ‎11-29-2002

I would like to have some information about the radiation pattern of the Cisco AIR-ANT4941 (is this more or less a standard (folded) lambda/2 dipole) and of the antennas in the Cisco AIR-PCM350.

Also, could anybody tell me how much the Cisco AIR-PCM350 and the AIR-PCM340 differ?

Kind regards

Admar Schoonen

tepatel · ‎11-30-2002

Here are the urls which i can find have some information about antennas

http://www.cisco.com/warp/public/cc/pd/witc/ao350ap/prodlit/agder_rg.htm

http://www.cisco.com/warp/public/cc/pd/witc/ao340ap/prodlit/airoa_ds.htm

Now 340 series is End of Life..which is not orderable..Here are the links which explains some key features of 350 and 340 series cards

http://www.cisco.com/warp/public/cc/pd/witc/ao350ap/prodlit/a350c_ds.htm

http://www.cisco.com/univercd/cc/td/doc/pcat/340cl.htm

admar.schoonen · ‎12-02-2002

Thank you for the information about the 340 series cards; I couldn't find it.

About the antennas: it's strange that

http://www.cisco.com/warp/public/cc/pd/witc/ao340ap/prodlit/airoa_ds.htm

specifies a beam width of 80 degrees for the AIR-ANT4941 and the other link you gave,

http://www.cisco.com/warp/public/cc/pd/witc/ao350ap/prodlit/agder_rg.htm

specifies a beam width of 70 degrees.

Although the size of the AIR-ANT4941 could suggest that it is a lambda0 antenna, the 80 degrees beamwith is very close to the 78 degrees beam with of a lambda0/2 antenna, and the gain of 2.14 dB is within the borders that I computed for an ideal lambda0/2 antenna, so I think that the AIR-ANT is very much like an 'ordinary' lambda0/2 dipole, and the information about 70 degrees beam width is incorrect.

What I further would like to know, is what the radiation pattern of the internal antennas of the 350 sercies pcmcia card looks like, or at least the gain and beam with of those antennas. The only information that I could find about those antennas, is that those cards have 'Integrated diversity dipoles'. Could anybody give me a hint where to find such information?

Regards

Admar