Wifi Antenna Types

by admin on September 18, 2007

Wireless or Wifi antenna’s are separated into two main types, directional and omnidirectional. For long distance work there is no substitute for a good directional antenna. While focusing the transmitted signal to cover greater distance, the receive performance is also greatly enhanced. By listening in one direction only, a significant amount of ‘noise’ from other directions is eliminated, providing a better ‘signal to noise ratio‘.

The performance of an antenna is measured in dB. For every 3db of gain the power is doubled. Most manufactures specify gain as dBi (dB gain over an isotropic or fictitious antenna radiating equally in all directions).

When using an antenna to increase the range of your wireless network, be careful not to violate any local laws governing output power. Because the signal is magnified in one direction the EIRP (Equivalent Isotropically radiated Power) is increased.

The Australian legislation covering ouput power is here.

Basically in Australia 2400 to 2463Mhz (channels 1-9) maximum EIRP of 4W (36dBm) and 2463 to 2483Mhz (channels 9-13) maximum EIRP of 200mW (23dBm).

Parabolic Antenna

As you can see, this grid or parabolic directional antenna is designed to reflect the signal into a focal point. This is similar to how a magnifying glass works with light. This type of antenna usually provides the best gain and thus the longest link distance. It can focus the signal into a very fine point.

Yagi antenna

Another type of directional antenna is a yagi. The bigger elements on this type of antenna also serve to reflect signal back to the main element, thus focusing the signal from one direction.

Omni antenna

Even though omnidirectional antennas do radiate in all directions, they too can be made to perform better by improving their gain. In this case the sphere pattern that would surround an antenna with no gain, is squashed flatter to provide better coverage out to the sides instead of wasting energy transmitting up and down.

Obviously with all antennas, the improved gain performance also works for the received signal.

{ 29 comments… read them below or add one }

10wifi.com February 3, 2008 at 8:51 pm

One more type of antenna (we deal with this a lot) is the Directional Panel antenna.

The wave-pattern is optimal if you need a solid installation for distances of 500 – 1000 meters. We ship these with wall and pole mounts, with a selection of cable options of both HDF-200 and HDF-400 grades.

Cheers / 10wifi.com


Blackkyboi July 24, 2010 at 5:35 pm



10wifi.com February 3, 2008 at 8:56 pm

One more type of antenna (we deal with this a lot) is the Directional Panel antenna.


The wave-pattern is optimal if you need a solid installation for distances of 500 – 1000 meters. They are shipped with wall and pole mounts, with a selection of cable options of both HDF-200 and HDF-400 grades.

Cheers / 10wifi.com


HTTP://Cardsagainsthumanityexpansionpdf.Blogspot.com February 24, 2013 at 6:33 am

Hello! I know this is kind of off topic but I was wondering which blog platform
are you using for this site? I’m getting sick and tired of Wordpress because I’ve had problems with
hackers and I’m looking at options for another platform. I would be fantastic if you could point me in the direction of a good platform.


tesla secret free electricity nikola Tesla invention March 1, 2013 at 9:14 am

Hey there! This is my 1st comment here so I just wanted to give a quick shout out
and say I truly enjoy reading your blog posts. Can you recommend any other blogs/websites/forums that
go over the same subjects? Thanks!


Growtaller4Idiotsdownload.com March 1, 2013 at 1:21 pm

Hello! This is my first visit to your blog! We are a team of volunteers
and starting a new project in a community in the same niche.
Your blog provided us valuable information
to work on. You have done a outstanding job!


the american accent audio course March 9, 2013 at 7:19 am

I love your blog.. very nice colors & theme.
Did you create this website yourself or did you hire someone to do
it for you? Plz reply as I’m looking to create my own blog and would like to know where u got this from. appreciate it


George Wallis April 12, 2013 at 1:45 am

Hi, I’m looking for an antenna to boost my wifi signal in my home. I’m wondering if someone can help me. I’m not sure if I need a direction antenna or a yagi antenna. Are all yagi antennas direction antennas? I am looking to buy one from here: http://www.quantum-wireless.com/data-networking/antennas-1.html


rabbit vibrators April 29, 2013 at 2:47 pm

Very nice post. I just stumbled upon your weblog and wanted to say
that I have truly enjoyed browsing your blog posts. In any case I will be
subscribing to your rss feed and I hope you write again very soon!


rocket japanese platinum May 7, 2013 at 2:28 pm

Hey there. I was considering adding a link back to your site since both
of our websites are based around the same niche. Would you
prefer I link to you using your website address: http:
//x.net.au/wifi-antenna-types/ or website
title: Wifi Antenna Types | Xnet. Please make sure to let me know at your earliest convenience.
Many thanks


bissell zing canister bagless vacuum 10m2 specifications May 8, 2013 at 3:48 pm

I really like your blog.. very nice colors & theme.
Did you make this website yourself or did you hire someone
to do it for you? Plz reply as I’m looking to design my own blog and would like to find out where u got this from. kudos


500 intimate questions for couples free May 17, 2013 at 11:08 pm

This piece of writing will help the internet viewers for setting up new
weblog or even a weblog from start to end.


la formula secreta bajar May 20, 2013 at 2:28 pm

My programmer is trying to persuade me to move to .
net from PHP. I have always disliked the idea because of the costs.
But he’s tryiong none the less. I’ve been using WordPress on various websites for about a
year and am concerned about switching to
another platform. I have heard great things about blogengine.
net. Is there a way I can import all my wordpress content into it?

Any help would be greatly appreciated!


Www.crayonpedia.org May 23, 2013 at 10:46 pm

I’m not sure exactly why but this weblog is loading extremely slow for me. Is anyone else having this problem or is it a problem on my end? I’ll check back later
and see if the problem still exists.


fatcow coupon July 18, 2013 at 4:28 am

Hey! This is kind of off topic but I need some help from an established
blog. Is it very difficult to set up your own
blog? I’m not very techincal but I can figure things out pretty fast. I’m thinking
about making my own but I’m not sure where to begin. Do you have any ideas or suggestions? With thanks


Inteligator Inf July 27, 2013 at 12:08 am

At the finish of the day it is all about keeping
these criminals away from your loved ones simply because you do
not want to see some kind of harm befalling on them.


low carb meals July 28, 2013 at 2:05 am

You can make use of flax meal, almond meal, soy powder, etc.


insider internet dating download August 25, 2013 at 10:37 am

It could be something as simple as a thank you or as complex as a chore normally done by your
partner that you take upon yourself to help with.
Do you actually see a future with this girl
or are you just hanging on because you cannot stand to go through another day without her.

He will tell you that he loves you every day and will mean


M3 System PDF September 27, 2013 at 3:56 am

If your ex has broken up with you then you need not try out different techniques haphazardly to win your ex back into your life.
But you can rebuild this trust, if you work hard enough.
Pushing someone to talk things over while they are still
angry can often end in a poor result.


7 Day Belly Blast Diet Free Download October 5, 2013 at 2:09 am

It causes the release of fat burning hormones such
as the Human Growth Hormone. You won’t only burn fat while doing it,
but your metabolism will be twice as quicker for hours
after the exercise which will help you to burn even more calories.
If you feel like there is just NO getting rid of your belly fat, perhaps your workout routine needs
a bit of a tweak.


http://secretsmarts.blogspot.com/2013/10/subliminal-messages-mp3-Free-download.html October 7, 2013 at 12:10 am

Can you image I was losing sleep, stressing over, getting anxiety issue from an created numbering system.
Despite the difficulties, the results are always more than
rewarding. When you have good dreams, think great thoughts of what is coming to you.


30 Days To Thin Free Download October 19, 2013 at 2:04 pm

The tail, also called “brush”, is bushy and is used to cover the body during
cold weather. There are many raw vegans out there who claim
that there eyes have changed colors due to their diet. As you should take low glycerol food but additionally it is very much important
that the intake of carbohydrates should be always with protein or good fat such as
olive, canola oil or part skim cheese.


Covert Hypnosis October 25, 2013 at 5:09 am

Therefore conversational hypnosis can be incredibly
powerful as. We’ve all seen the woman that has an entourage of men, following her around as if they were dogs on leashes.

Fact: Mirror imaging is just one of the ways for building rapport.


revive her drive free November 14, 2013 at 12:44 am

However, by early next morning, in most cases you will notice
that your weight has considerably dropped compared to
where it was the previous night. Now you already know what can affect this fat loss, but
maybe yourself not sure whether you can do this or
not. Chilli and capsicum are the best foods for burning fat because
they contain a compound in them called capsaicin and this is
actually what experts add to weight loss pills as it
kick starts your metabolism for major fat burning.


Leander martial arts December 8, 2013 at 4:40 pm

Hola! I was curious to know if setting up a website such your own:
http://x.net.au/wifi-antenna-types/comment-page-1/ is challenging to do for unskilled
people? I have been hoping to create my own blog for a while now but
have been turned off because I’ve always believed
it required tons of work. What do you think?


Maintenant c'est ma vie Telecharger le film March 8, 2014 at 11:02 pm

I like the helpful info you provide in your articles. I’ll bookmark your blog and check again
here regularly. I’m quite certain I will learn lots of new stuff right here!

Good luck for the next!


herpes cure news September 26, 2014 at 1:46 am

Vaginal herpes simplex virus is passed from one person to some other by skin to
skin area contact when there is any swap of semen, saliva, vesicle
fluid from energetic lesions, or cervical fluid.


online slots September 27, 2014 at 7:59 pm

Hello mates, nice paragraph and pleasant arguments commented at this place, I am really enjoying by these.


shopping blog April 19, 2017 at 8:49 pm

If you desire to obtain a good deal from this post then you have to apply
such methods to your won web site.


Leave a Comment

{ 3 trackbacks }

Previous post:

Next post: