Specifications:

• Center frequency: 5.8 GHz

• Bandwidth: 500 MHz (5.55 – 6.05 GHz)

• Matching: VSWR < 1.2 (at center frequency)

• Axial ratio: < 1

• Radiation efficiency: 98%

Originally the radiation efficiency was listed as 92%, this was a mistake. 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.