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01.08.2020 18:40:22
⚡️ 2PCS GEPRC 5.8G Triple Feed Patch-1/Array Circular Polarized FPV Antenna Compatible RHCP LHCP fo фото

➨ ➨ 2PCS GEPRC 5.8G Triple Feed Patch-1/Array Circular Polarized FPV Antenna Compatible RHCP LHCP for R
Limited Offer Only US $14.99
[4001010727405]

GEPRC Triple Feed Patch-1 5.8GHz CP FPV AntennaspecificationCenter frequency: 5.8 GHzBandwidth: 660 MHZ (5.47-6.13ghz)Match: S11 < -20 dB, VSWR < 1.22 (at the center frequency)Axial ratio: < 1.3DBi antenna gain: 9.4Half power beam width: 55 ° (horizontal and vertical)Radiation efficiency: 83.5%These values are based on simulation and the actual measurements are as follows (they are very similar).Due to the change of the FR4 dielectric constant, the center frequency may be transferred between not all FR4 brands have the same dielectric frequency conversion to 100 MHz is Triple Feed Patch Array antenna is a directional circularly polarized antenna based on the original Triple Feed Patch antenna. It uses an array of seven coupled patches to achieve significantly higher gain. Since the beam width is quite narrow, this antenna is not recommended for general FPV, but it performs very well for long-range :Brand name: GEPRCItem number:Triple Feed Patch Array-1Connector: SMA, RP-SMA (Optional)








Simulation


Measured


Comment






Center frequency


5.8 GHz


5.8 GHz ± 100 MHz









Bandwidth


660 MHz (5.47 – 6.13 GHz)


950 MHz ± 100 MHz









Match


S11 < -30 dB, VSWR < 1.065


S11 < -20 dB, VSWR < 1.22









Axial ratio


1.05 (0.38 dB)


1.10 (0.83 dB)









Antenna gain


14.4 dBi


14.0 dBi









Half power beamwidth


30°


30°


Horizontal and vertical






Radiation efficiency


75%


74%





Simulation diagram:Measured Figure:VAN measurement:Features:* Good Radiation efficiency. Most FR4-based patches are very efficient because FR4 is very lossy at 5.8 GHz. In addition, most array antennas have higher losses in the feed network. This design uses coupled patches to keep the feed network simple and reduce these losses.* Good shaft ratio, not only perpendicular to the patch but also eccentric.* High gain, but not higher than the theoretical gain of an array with 7 elements. This is because maximizing the gain results in high side lobes and poor axial ratio.* Very low side lobes, almost all of the energy is concentrated on the main lobe. This will increase the width of the main lobe but will increase some gain.



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Disclaimer:
This video is not sponsored. I do use affiliate links when linking products in the video description. This does not affect your buying experience or item price but does mean I receive a small commission on items purchased using such links.

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Категория: Люди и блоги
Теги: the, antenna, fpv, feed, drone, rhcp, for, patch, gain, triple, this

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