The WiNRADiO WR-AX-G400-PF patch feeder is an L-Band feeder designed for a 1690 - 1710 MHz frequency range,
with a -3dB beamwidth of 85°. Optimum performance is achieved when it is mounted as a prime focussed feeder onto a dish with a f/D ratio of 0.35 to 0.4.
Operating the feeder under these conditions, a VSWR of typically 1:1.15 can be expected mid-band.
The feeder expects a left hand circularly polarized (LHCP) signal, i.e. an RHCP inbound signal before being reflected off the dish.
The silver plated patch antenna is fitted with a "tuning slug" (set screw), which can be used to fine-tune the LHCP
signal phase for optimum performance. However, this should not be necessary, as the feeder is shipped pre-tuned
for the operating frequency band.
The feeder interface has an impedance of 50 Ohm and is provided via an N-type female connector.
The feeder sub-reflector is constructed from aluminium and is powder coated for environmental protection.
The N-Type connector and high density polyethylene cover are sealed against water ingress.
Three 4 mm studs are provided for mounting the device, with the studs located on a circle with radius 52 mm and spaced
apart equally at 120°
If the WR-AX-G400-PF patch feeder is mounted onto the WR-AX-400D 120cm dish, the antenna system will have an overall gain of 24 dBi,
with the -3 dB main lobe beamwidth of 11°, while the side lobes are at least 25 dB below the main lobe.
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Technical Specifications
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| Model |
WR-AX-G400-PF |
| Type |
Patch Antenna |
| Frequency Range |
1690 - 1710 MHz |
| Polarization |
LHCP (RHCP optional by design) |
| Gain |
8.5 dBi |
| -3 dB Beamwidth |
85 degrees |
| -10 dB Beamwidth |
125-130 degrees |
| SWR |
1:1.15 at 1698 MHz |
| Suitable f/D |
0.35 to 0.4 |
| Connector |
N-Type Female |
| Impedance |
50 Ohm |
| Size |
D = 164 mm (6.45"), H = 40 mm (1.57") |
| Construction |
Aluminium, powder coated |
| Colour |
Beige |
| Mounts |
Three 4 mm (0.16") studs, on circle R = 52mm (2.04"), 120° apart |
| Antenna System Performance (with WR-AX-400D dish) |
| L-Band Gain |
24 dBi |
| Main Lobe Beamwidth |
11 degrees @ -3 dB |
| Side Lobes |
25 to 30 dB below main lobe |
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Please use our Rapid Response Form to register your interest in this product, or to request more information.
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