Antenna Experts a leading manufacturer & exporter of world highest performance military grade cavity backed dual arm archimedean spiral antenna. Antenna Experts also offer world shortest lead-time in its military cavity backed dual arm archimedean spiral antenna range of products. We are also known for design and supply customized version of cavity backed dual arm archimedean spiral antenna along with customized mounting option and customized color option. All the cavity backed spiral antenna are supplied with high quality high strength non-metallic radomes which makes these antenna highly suitable for outdoor environmental installation.
Antenna Experts AS-300-3000 MIL-STD cavity backed dual arm archimedean spiral antenna uses 6063T6 ultra corrosion resistant architectural anodized aluminum alloy and designed to provide wideband directional transmission/reception of radio signals. The circular polarized cavity backed spiral antennas are supplied with powder coating finish to protect the antenna further from severe environmental conditions. Cavity backed spiral antennas are highly suitable where circularly polarized signals are required with ultra wide bandwidth. Both left hand circular polarization (LHCP) and right hand circular polarization (RHCP)cavity backed spiral antenna are available.
The MIL-STD cavity backed dual arm archimedean spiral antenna model AS-300-3000 use 6063T6 ultra corrosion resistant architectural anodized aluminum alloy and designed to provide wideband directional transmission/reception of radio signals from 300-6000 MHz bands. The antenna is supplied with powder coating finish to protect the antenna further from severe environmental conditions. Both left hand circular polarization (LHCP) and right hand circular polarization (RHCP) cavity backed dual arm archmedean spiral antenna are available.
The cavity backed dual arm archimedean spiral antenna is a frequency independent antenna and this spiral antenna is weather protected suitable for outdoors use in applications requiring circularly polarized RF radiations. The AS-300-3000 uses extended coaxial stubs technique to provide constant 3+ dBi gain over entire 300-6000 MHz frequency band while maintaining the wider beam-width. This MIL-STD cavity backed spiral antenna is highly suitable for transmission, reception, monitoring, scanning, ECM, surveillance, signal intelligence (SIGINT), direction finding (DF), telemetry and airborne applications due to its ultra broad band design feature.
Antenna Experts AS-300-3000 cavity backed dual arm archimedean spiral antenna model uses 50 ohms impedance and has 60-80 degrees wide vertical and horizontal beamwidth. Antenna Experts cavity backed dual arm archmedean spiral antenna can handle up to 150 watts RF power. MIL-STD Cavity backed dual arm archmedean spiral antenna is supplied with olive green color. Other customized color can also be supplied on request. Similarly customized connector also supplied on request. Mounting bracket of cavity backed dual arm archimedean spiral antenna is designed in such a way that it can be removed for ease of shipping and transportation and same can be fix within minutes.
Cavity backed dual arm archimedean spiral antenna is sealed in an aluminum cavity and is highly immune to noise. Matching circuit of dual arm archimedean spiral antenna is housed inside the main body of the antenna. A special mounting hardware to mount the dual arm archimedean spiral antenna on vertical pole having outer diameter of 25-51mm (1"-2"). Higher diameter mounting including any customized mounting can be supplied on request. Cavity backed dual arm archimedean spiral spiral antenna N-Female termination is fixed on top of the antenna body for easy connectivity. The AS-300-3000 cavity backed dual arm archimedean spiral antenna is light weight, broadband and rugged spiral antennas, supplied with fiberglass cover to protect the antenna from severe environmental conditions.
Electrical Specification AS-300-3000 Dual Arm Archimedean Cavity Backed Spiral Antenna 300-3000MHz
Frequency Range |
300-3000 MHz |
Antenna Gain - Typical |
6 dBic |
Antenna Bandwidth |
Entire 300-3000 MHz Band |
Antenna Polarization |
Circular - RHCP or LHCP |
Input Impedance |
50 Ohms |
Radiation Pattern |
Directional |
Azimuth Beamwidth -3dB Point |
60-80 Degrees |
Vertical Beamwidth -3dB Point |
60-80 Degrees |
VSWR - Better Than |
3:1 |
RF Power Rating |
150 Watts |
Input Termination |
N Type Female or Customized |
Mechanical Specification AS-300-3000 Dual Arm Archimedean Cavity Backed Spiral Antenna 300-3000MHz
Antenna Cavity Materials |
6063T6 Aluminum Alloy |
Mounting Hardware |
Marine Grade Stainless Steel |
Gross Weight - Approx. |
5 Kgs. (11 lbs) |
Wind Rating |
200 Km/Hr. (125 MPH) |
Antenna Diameter - Approx. |
500mm (21 Inches) |
Antenna Height - Approx. |
180mm (7 Inches) |
Radiating Elements Materials |
High Quality Copper Strips |
Maximum Mount Pipe/Mast Diameter |
38-51mm (1.5-2.0 Inches) |
Front Radome Materials |
High Strength Fiberglass |
Antenna Color/Finish |
Olive Green or Customized |
Shipping Diamension - Approx. |
550x550x200mm (23x23x8 Inches) |
Environmental Specification AS-300-3000 Dual Arm Archimedean Cavity Backed Spiral Antenna 300-3000MHz
Antenna Operating Temperature |
(-) 30 to +60 Degrees Celsius |
Antenna Storage Temperature |
(-) 40 to +70 Degrees Celsius |
Antenna Humidity |
0 to 95% RH |
All the cavity backed dual arm spiral antennas are light weight, broadband and rugged spiral antennas, supplied with fiberglass radome cover to protect the antenna from environment. The cavity backed spiral antenna is designed to perform with much higher efficiency than conventional rubber duck antenna. Some of the cavity backed spiral antennas manufactured by Antenna Experts are listed in our "Cavity Backed Spiral Antenna" section. Antenna Experts would be pleased to discuss your specific requirement with customized mounting brackets.
Please refer to our "Cavity Backed Spiral Antenna" section for more details on cavity backed dual arm archimedean spiral antenna products datasheets and installation manual. Also you can ask us for detailed datasheets of these cavity backed dual arm archimedean spiral antennas in pdf format. You can also request more technical information like VSWR curve and radiation patterns.