Product 36/76

The Triple Feed Patch antenna is a directional circularly polarized antenna that was created with the main design goals of:

  • Good radiation efficiency. Most FR4-based patches have terrible efficiency because FR4 is very lossy at 5.8 GHz.
  • Good axial ratio, not just directly perpendicular to the patch but also off-center.
  • Cheap and easy to manufacture with high accuracy, even for a hobbyist.


  • Center frequency: 5.8 GHz

  • Bandwidth: 660 MHz (5.47 – 6.13 GHz)

  • Matching: S11 < -20 dB, VSWR < 1.22 (at center frequency)

  • Axial ratio: < 1.3

  • Antenna gain: 9.4 dBi

  • Half power beam width: 55° (horizontal and vertical)

  • Radiation efficiency: 83.5%

These values are based on simulation, actual measurements are below (they are very similar). The center frequency may shift a bit between batches as a result of variations in the dielectric constant of FR4. Also, not all brands of FR4 have the same dielectric constant. Frequency shifts up to 100 MHz are normal.

Designed by: Maarten Baert & Robin Theunis

5.8GHz Triple Feed Patch Antenna

Product SKU: 4503-53

  • Brand: Other
Status : Back Ordered (Ships as soon as available)

Current Reviews: 0

CLICK HERE to be notified when this product is back in stock.

This item is no longer available.
Let us notify you when this product is back in stock!

Simply enter your details below and we will send you an e-mail when “5.8GHz Triple Feed Patch Antenna” is back in stock!

We will not send you any other e-mails or add you to our newsletter, you will only be e-mailed about this product!