Realacc Triple Feed Patch Antenna Pagoda Pro (SMA)

  • $18.99

Delivery Estimate: Orders before 3pm dispatch from Sydney on same business day
Will be in stock after

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Product Description:

Triple Feed Patch Antenna

The Triple Feed Patch antenna is a directional circula

rly polarized antenna that I created in collaboration with Robin Theunis, one of my co-workers. The main design goals were:

  • 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.

Radiation pattern


Package included:
1 x Triple Feed Patch Antenna 
1 x Extended cable

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