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Small dipole printed circuit board antenna with parallel elements at each end - why?

Bumpff

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I have this commercially made small antenna (approx 1GHz) that I'm trying to understand. It's basically a 1/4 wave dipole but what's the purpose of the 4x parallel elements connected at each end? (there is a track under the pink cable).

I suspect they are designed to increase the effective bandwidth of the antenna, possibly by multi resonance/ harmonics. Can anyone explain?

Antenna photo 160925.jpg
 

prcguy

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Looks like an 8 element array probably for 5GHz. The thicker traces coming off the coax would be stripline transmission lines probably around 75 ohm then it divides to four very thin strip lines of a higher impedance to the antenna elements. So basically you have a multi element antenna with built in power divider to feed all the elements.
 

AB5ID

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How long is the pc board?

Is the coax shield soldered on the Type N connector end, if not; is the shield soldered to the center conductor where it terminates onto the trace?

Do you know who made it, or where it came from?
 
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