Antenna Solutions on the cheap

This past May I had the fortunate experience of riding with Kent Britain, WA5VJB to the Dayton Hamvention in Ohio (he may tell you otherwise). Among other things, Kent is an exceptional antenna designer, with projects on his resume that include antennas that were conceived to reside in the second stomach of a cow (Try to figure out THAT dielectric constant!). You may have read his articles in CQ and CQ VHF magazines. He kind of knows a thing or two. I crap you negative.

Anyway, what I came to tell you about are a unique design approach Kent has for low cost antennas. Before Dayton, a group that I do some hobby work with was looking for a directional WiFi antenna to interface with a Linksys WRT-54G router that was powered by PoE (power over ethernet) and mounted to the side of a piece of antenna mast. The project was created out of necessity to reach a ranger station that was just out of reach for our stock omnidirectional antennas. We ordered some of these from Kent:

What you see are two high gain antennas for 2.4 GHz designed onto printed circuit boards! Here are the datasheets:

Quad Patch antenna datasheet (sadly, this antenna has been discontinued)

Yagi antenna datasheet

We ended up using the Quad Patch for a few reasons. First, we could easily mount it to the side of the weatherproof telecom box we strapped to the tower (the router was mounted inside). The polarization needed by the Yagi to work did not line up with the tower leg we were using. Second, according to the datasheet, ir provides 11 dBi gain, which, in retrospect, was overkill, but who cares.
They work GREAT and do a lot better than a “cantenna”, (Which, if you model it with antenna software, has some serious flaws).

So, if you are on a budget, or just want a great antenna for your project, I highly recommend you check out Kent’s website over at More on our WiFi project in a later article…..for now, go build your own!

5 Responses

  1. WA5VJB
    WA5VJB March 22, 2015 at 7:14 pm | | Reply

    Got new and better quad patches for 2.4 GHz now.

    73 Kent

    1. Berta MF
      Berta MF January 26, 2016 at 8:24 am | | Reply

      Kent, I am really interested in purchasing several 2.4GHz quad patch antennas. I have contacted your team via mail (, but I have received no answer so far. Could you help me??


      1. Tamara Wilhite
        Tamara Wilhite July 19, 2017 at 8:19 pm | | Reply

        To Berta MF – if you’re still having problems, please contact me directly.
        Tamara Wilhite, Kent Electronics

  2. Tamara Wilhite
    Tamara Wilhite March 21, 2017 at 2:37 am | | Reply

    Berta MF, these 2.4 ghz quad patch antennas can be found here:

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