Wideband Biconical Dipole Antenna

Wideband Biconical Dipole Antenna

 

The Wideband Dipole antenna is a computer-optimised cage biconical dipole antenna for broad frequency coverage with linear polarisation. Mounted on an insulating support tube, the antenna is centre fed with an integral broadband choke balun. Typically used for vertical polarisation, the antenna is ideal for rapid deployment in conjunction with wideband military radios. With nominal frequency coverage from 130 to 550 MHz, the antenna covers the VHF High and UHF military frequency bands with ideal horizon coverage. It can also be used in its second resonance band to provide horizon coverage from 700 to 1000 MHz with no performance penalty.

The antenna is inherently broadband based on its unique geometric arrangement and has no lossy matching network. In typical applications, 50 feet or more ofstandard coaxial cable provides sufficient loss as to keep the VSWR seen by the transmitter under 2:1 from 130 to over 1000 MHz. This antenna may be stacked for additional gain.

The antenna is made of lightweight aluminium construction, which is black anodised as standard with optional tan or olive drab anodizing available on request. It is supplied in a ruggedised storage/carry case.

Specifications

Frequency Ranges: 130-550MHz (usable to 1GHz+)
Gain: 1.5 to 2.5 dBi
Pattern: Dipole Equivalent
Polarization: Linear
Input Connector: Type N Female
Input Impedance (nominal): 50 Ohms
Input VSWR: Under 3.0:1 from 130-550 MHz at antenna input (4:1max to 1 GHz).
Under 2.0:1 from 130-1000 MHz with 50 feet or more of LMR-400 or similar coaxial cable.
Input Power: 500 Watts maximum
Dimensions (antenna): 23” x 15”
Mounting: Horizontal or Vertical Pipe Mount
Gain (at horizon):
130 MHz 1.3 dBi 200 MHz 2.1 dBi 300 MHz 2.4 dBi 400 MHz 2.5 dBi 500 MHz 1.3 dBi
550 MHz -0.9 dBi 600 MHz -12 dBi (max gain 3.8 dBi at 40 degrees above and below the horizon)
650 MHz 0.9 dBi 700 MHz 1.4 dBi 800 MHz 3.3 dBi 900 MHz -0.7 dBi 1000 MHz -2.6 dBi

To find out more about the Wideband Bi-Conical Dipole Antenna or any of our other products, please call (+44) 1432 373800 or email info@grcltd.net