Laptop internal antenna measurements?

AntennaGuy · 08-19-2004

Has anybody information on laptop/notebook internal antennas?
I was wondering whether internal antennas are always designed to work in both frequency bands for 802.11b (2.4GHz) and 802.11a (5Ghz)?

I would like to upgrade my old Toshiba Satellite Pro 4600 series with an internal mini PCI card. I would like to get a 802.11a/b/g card but I don't know whether the internal antennas support the 5GHz band. Maybe somebody has some data on the return loss of the internal antennas in the 2.4 and 5 GHz bands?

peekitty · 08-19-2004

Check the documentation for the card you're buying, it's unlikely that there is an antenna jack for the A band. Nearly all of the mini-PCI cards I've seen lack a dedicated jack and the documentation is vague, I don't know if there is a built-in dipole or not. The only exception is a handful of 802.11a-only cards that are found in some wireless routers with internal mini-PCI slots, and these may not work in a laptop anyway...

08-19-2004	#1 (permalink)
AntennaGuy Registered Member Join Date: Aug 2004 Posts: 1	Laptop internal antenna measurements? Has anybody information on laptop/notebook internal antennas? I was wondering whether internal antennas are always designed to work in both frequency bands for 802.11b (2.4GHz) and 802.11a (5Ghz)? I would like to upgrade my old Toshiba Satellite Pro 4600 series with an internal mini PCI card. I would like to get a 802.11a/b/g card but I don't know whether the internal antennas support the 5GHz band. Maybe somebody has some data on the return loss of the internal antennas in the 2.4 and 5 GHz bands?

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08-19-2004	#2 (permalink)
peekitty Macaca Join Date: Sep 2002 Location: S. Florida Posts: 1,056	Check the documentation for the card you're buying, it's unlikely that there is an antenna jack for the A band. Nearly all of the mini-PCI cards I've seen lack a dedicated jack and the documentation is vague, I don't know if there is a built-in dipole or not. The only exception is a handful of 802.11a-only cards that are found in some wireless routers with internal mini-PCI slots, and these may not work in a laptop anyway...