Our Picks for Best 2.4 GHz and 5 GHz Antennas for WiFi Dual Band

By | February 8, 2017

Does your router have dead WiFi spots or lack in distance? Then buying a better antenna can boost signal quality and is a cheap and easy solution. Antennas can also be used with WiFi adapters that have a screw on antenna.
Most routers using a stock antenna have a range up to 300 feet. The same router with a external parabolic antenna in theory can go up to 20 miles.
The bowl shape of the parabola would have to be tuned to line of site and no obstructions in the way.
Of course this is what a good antenna and signal can do in theory. In real life getting 20 miles from a router is all but impossible, but increasing a routers WiFi distance can be done.
WiFi Antenna Basics
Antennas are rated by dBi with a lager dBi number being a larger antenna.
Small antenna that come with a router(usually 3-5 dBi) are good up close since the WiFi signal wave has not expanded yet.
As a radio wave travels away from its source the wave expands from its low peak to high peak.
To get a good signal an antenna must be large enough to capture both the high and low peak as it moves.
Will a Larger dBi Antenna Help You?
If you are looking to increase distance than yes a larger dBi antenna will help.
A larger antenna will not help with obstructions such as walls or trees.
To get a better signal past obstructions WiFi boosters are a better option or a router with a high gain.
Things To Check First
Many routers have a signal booster setting that can be increased. This can be checked by logging into the router and looking for a power increase setting.
Repositioning a router higher up and adjusting the antenna can also help in some cases.
Router Antenna Connector Types
The most common connector is called Male SMA followed by Male TNC. The only way to know for sure what type of connector your router anntena uses is to Google the model number and its specifications.
Alternatively it can be unscrewed and examined in pictures before buying one.
*This post contains affiliate links which at no cost to you allows us earn a commission on product purchases.
2.4 GHz and 5 GHz Dual Band Antennas for WiFi

Super Power Supply 3 x 9dBi 2.4GHz 5GHz Dual Band WiFi RP-SMA Antenna for Routers Asus RT-AC66U RT-N66U RT-N16 AC1750 D-Link DIR-655 DIR-665 N900 Buffalo WZR-HP-G450H Netgear Nighthawk R7000 Linksys

Rated at 9 dBi this dual band antenna comes in a package of three for routers that have more than one antenna.

Super Power Supply® 1x 9dBi 2.4GHz 5GHz Dual Band WiFi SMA Antenna for Foscam FI8908W FI8918W FI8909W FI8910W FI8916W FI8602W FI8608W FI9802W FI8904W FI8905W FI9821W WiFi IP Camera Removable Omni Directional Antennas Network Extension Mini Wireless WAN Long Range Booster

Rated at 9 dBi this dual band antenna is possibly the cheapest on the list.

Alfa APA-M25 dual band 2.4GHz/5GHz 10dBi high gain directional indoor panel antenna with RP-SMA connector (compare to Asus WL-ANT-157)

Rated at 8 dBi for 2.4 GHz and 10 dBi for 5 GHz this is a good option over a stock router antenna.

TP-Link 2.4GHz 24dBi Directional Grid Parabolic Antenna, N Female Connector, Weather Resistant (TL-ANT2424B)

Rated at 24 dBi this parabolic antenna is for someone looking for a serious WiFi signal increase.

9 thoughts on “Our Picks for Best 2.4 GHz and 5 GHz Antennas for WiFi Dual Band

  1. David

    What about using extension cables on detachable antennas? Say going from a basement up one floor? So the router can stay in utility closet but the antennas placed on main floor and outside for backyard?

    Running: Asus rt-n55u

  2. George Jones

    ok, so i understand the antenna picking more signal strength on an incoming signal, but what about transmitting. My router still puts out the same wattage regardless of the gain of the antenna. How does this help me transmit farther?

    1. dave

      It helps by concentrating the power that your router sends into a single direction. Standard antennas send it out in all directions(including up and down). The more dB gain the tighter the beam.

  3. Richard

    It’s worth pointing out that increase in gain comes with increase in directionality. You can’t get more energy out then you put in, so when you focus energy in a given direction you are reducing the energy focused (or received from) other directions.

    The simpler co-linear antennas will give a radiation pattern that more and more resembles a squashed donut the longer and higher gain the antenna is. If your other station is outside the radiation pattern then it will see a weaker signal. This becomes relevant when choosing an antenna for general use in your house where your remote stations are walking around upstairs and downstairs (quite often in someone’s pocket or wherever they happen to sit down to use it).

    The parabolic and plate antennae are great for point to point communication where the direction to the remote station is fixed. A parabolic antenna could be deployed at either or both ends of the link. For example RAYNET use this setup to provide WiFi access to the mountain tops of the Yorkshire Three Peaks to allow real time reporting of race progress in the annual fell race. The setup here is temporarily placed masts with plate antennae on the hill tops with a second link down into the valley to the base station. The distance is about 8 miles. Alignment is quite critical.

  4. Anton

    Hi, my house and cottage is 50 m apart. There is a direct line of site from my house’s outside wall to roof of cottage. I have a Netgear router which does not have srew on connectors for the antennae. Router is behind a wall inside the house. I need wifi inside the cottage. Any advice on equipment required to achieve that?

    1. Peter

      If you have mains power in the cottage which is fed from the house i.e on the same phase, then try ‘power link’ adapters. They work well for me. One of the pair of adapters is connected to your router via a network cable, and plugged into a spare wall socket, and the other of the pair is plugged into a socket in your cottage. TP link power line adapters can have the capability of transmitting via wifi (mines at 2.4 GHz) or can be connected via another network cable.

  5. Alvin

    using e ASUS RT-AC5300,e 8 stock antennas r quite short,but signal r strong. deciding if to change e antennas to 12dBi RP-SMA dual band type. will it help to boost signal further?

    need advice. thanks

    1. Omar

      Hi, do you have the antenna part number or model # or the link where i can buy it from? this would be very help full. i have the RT AC 3100 and buying 9 db antennas from power supply did not work. Much appreciated

  6. Ken Lyon

    Advice: Use a WiFi tool like Wifi Manager to measure and record the “before” signal at several locations. Then measure after any antenna change. Not all routers behave predictably to higher-dBi antennae. “Beamforming” and other router features can muddle communications with non-stock configurations. THAT was a frustrating lesson for us.


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