I'm waiting a callback from engineering or sales. But I agree with the "switched antenna" theory.
It looks like a great design - or plan anyway. I think the way it works is that it detects and transmits only on the panel on which the signal is being received. So, all transmit energy only goes in the direction of the laptop. In the case of their "omni" tower antenna, it looks like there are at least 8 different radiation patterns. That would be like having 8 narrow-beam directional antennas on a pole. The effect makes this a high-gain directional antenna that automatically adjusts direction 360 degrees around the tower. Neat. Comparing to Vivato is difficult - except that they both call their antennas phased arrays. Vivato is a 180 degree pattern and probably has the same net effect. That is, beaming the transmit energy towards the receiving antenna instead of in a wide pattern. I'll send another message when I hear back. Though it's always hard getting pricing info unless the checkbook is open! -Mike O. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Thompson Sent: Thursday, May 20, 2004 10:50 AM To: [EMAIL PROTECTED] Subject: Re: [SOCALWUG] Phased Array WiFi Antennas I'm still trying to determine what provides the co-phasing. At first blush, it looks like a switched antenna system to me. Also, the gain ("10dBi over an omni with the same pattern"?) is fairly low. On May 20, 2004, at 10:06 AM, Ronan Higgins, Cafe.com wrote: > Frank, > > Have you tested these in the field? > How do they compare with other phased array systems such as Vivato? > How much do they cost? > > > > Ronan. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Frank Keeney > Sent: Thursday, May 20, 2004 1:25 AM > To: [EMAIL PROTECTED] > Subject: [SOCALWUG] Phased Array WiFi Antennas > > > > fyi > > "Based on phased array radar principles developed for the military, > Airgain' > s smart antenna solutions use patented antenna steering technology to > direct > the beam towards any active wireless device. Each smart antenna is > capable > of continuously monitoring network signal strength...." > > Nice photos and diagrams: > > http://www.airgain.com./AirgainAntennaConfigDS0304.pdf > > http://www.airgain.com./AirgainWirelessBridgeDS0304.pdf > > > > > > Frank Keeney > Tel: 888-259-5110 x0 > Pasadena Networks, LLC > Wireless Antennas, Cables and Equipment: > http://www.wlanparts.com > > >
