Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

Wireless Reviews

Introduction

Aerialix Mini Dipole Antenna

Aerialix Mini Dipole Antenna
Summary Miniature antenna for wireless notebook adapters with external antenna connectors
Update 10/8/2003 - Corrected available connector type info.
Pros • Gets your laptop into same polarization as your AP
• Can make a difference in weak signal areas
Cons • Somewhat pricey

Aerialix is a small WLAN equipment supplier located up in the Boston MA area. Among their small line of APs, antennas, cables and cards is a handy little item called the ARLX-OM-MINI2400.

The Mini is a hand-crafted omnidirectional simple 1/2 wave collinear dipole with a gain of approximately 2.15dBi. It's specifically designed for the few WLAN PC cards that support external antennas via either MC or MMCX miniature connectors (see Table 1).

MC MMCX
  • Buffalo Technology
  • Cabletron
  • Enterasys
  • Lucent
  • ORiNOCO
  • Proxim
  • Wavelan
  • Aerialix
  • Engenius Ext2
  • Cisco 34x/35x series
  • Senao
Table 1: PC Cards with antenna connectors

NOTE!NOTE! Although MC and MMCX connector options are standard, Aerialix can make the Mini with any Cable "Group B" connector, i.e. Types MC, MMCX, SMA, TNC and N on a special order basis.

Although the Mini doesn't provide much more gain than the integrated printed-circuit antenna built into your laptop's wireless card, it has two advantages over it:

1) It's much less directional - Anyone who's used a wireless laptop that doesn't have a built-in radio knows the contortions they often have to resort to in order to get a decent connection. The reason for this is shown in Figure 1.

PC card antenna gain plot
Figure 1: PC card antenna gain plot
(click on image for a larger view)
From Antennas Enhance WLAN Security by Trevor Marshall
Used by permission

It shows the gain plot of a typical wireless PC card. If a PC card's antenna were properly omni-directional, the red and blue dotted lines would look more like circles. Instead, the lopsided patterns you see are the reason why you have to aim your laptop in a certain direction in order to connect to your access point.

The MINI is a classic dipole and has the same gain in all directions.

2) Its polarization matches your AP's - Most access points and wireless routers have external antennas that generally point straight up or at a slight angle. This yields a vertically polarized signal. Of course, WLAN PC card antennas provide a horizontally polarized signal because of the way they sit in your laptop's PC card slot. The result is yet another obstacle in the way of optimum performance.

Since you can move the MINI around, you can orient it vertically - same as your AP / wireless router.

More Wireless

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

Sorry. Please feel free to use "wow; stupid". Why is he allowed to have a computer; let alone a computer.I have used the Merlin firmware for years (an...
Hi,I have RT-AC86U running on Merlin 384.13_0. My Internet speed 1 gigabit from Comcast.I am getting the speed around 400 MB/s when the router works n...
Have a primary cable and a dsl backup.The AC86U is set to fall-over to the dsl if the cable goes down unfortunately this tends not to work worth a dam...
I am wanting to unbrick a tp link router and need to connect to it via a ethernet cable but I am wanting to do it with a windows surface pro 6 tablet....
Hey everyone!Normally I'm good at figuring these kinds of issues out, but I am really struggling with this router... and now after finding this forum ...

Don't Miss These

  • 1
  • 2
  • 3