Helical RHCP / LHCP Antenna
 These SCH series Helical Antennas are
light weight, Broadband and Rugged Helical Antennas , supplied with fiberglass radome to
protect the antenna from environment. Cylindrical radomes are used for low wind loading
and for minimal effect of ice formation on the Helical Antenna operation.
For wide bandwidth operation with a low SWR , the matching section uses a rigid coaxial
feed with helical antenna termination , N-Female, mounted at the end for easy antenna feed
connectivity.
These Helical Antennas are supplied with a specially designed mounting arrangement for
steering the antenna in both planes, over 360 Degrees in Azimuth and 90 Degrees in
Elevation for terrestrial and satellite links.
Both , Right Hand Circular Polarized (RHCP) and Left Hand Circular Polarized (LHCP) models
are available.
For higher gain requirement, the Helical antenna can be supplied in DUAL stacked or QUAD
stacked arrays with suitable power splitter/combiner cable harness.
Rust proof Stainless Steel mounting hardware is supplied with these Helical Antennas .
Electrical Data [Helical RHCP / LHCP Antenna]
| Models |
SCH - 1412 |
SCH - 1812 |
SCH - 2412 |
| Frequency Range (MHz.) |
1350-1550 |
1700-1900 |
2350-2550 |
| Bandwidth (MHz) |
90 |
100 |
125 |
| VSWR - Equal to or better than |
1:1.5 |
1:1.35 |
1:1.2 |
| Input Impedance (Ohms) |
50 |
50 |
50 |
| Gain at Mid Frequency (dBic.) |
12 |
12 |
12 |
| Beamwidth - Half Power Point (Degrees) |
40 |
36 |
32 |
| F/B Ratio (dB) |
18 |
18 |
18 |
| RF Power Handling Capacity (Watts) |
150 |
150 |
150 |
| Polarization |
LHCP / RHCP |
LHCP / RHCP |
LHCP / RHCP |
| Termination |
N-Female |
N-Female |
N-Female |
Mechanical Data [Helical RHCP / LHCP Antenna]
| Radome Material |
Fiber Glass |
Fiber Glass |
Fiber Glass |
| Radome O.D. (mm) |
75 |
68 |
44 |
| Radome Length (mm) |
550 |
525 |
500 |
| Radiating Material |
Copper |
Copper |
Copper |
| Reflector Dia. (mm) |
160 |
130 |
100 |
| Maximum Mount Clamp Dia. - mm (Inches) |
40 (1.5) |
40 (1.5) |
40 (1.5) |
| Mounting Hardware |
S.S. |
S.S. |
S.S. |
| Wind Rating (Km/Hr) |
150 |
160 |
180 |
| Overall Length - mm (Inches) |
640 (25) |
625 (24) |
600 (23) |
| Weight-Kgs. |
3 |
2.5 |
2 |
|
|
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