Biconical Antenna 1-20 GHz Frequency Range 2 dBi Typ. Gain, Slant polarization RM-BCA120-2

Short Description:

RF MISO’s Model RM-BCA120-2 is a slant polarization biconical antenna that operates from 1-20GHz. The antenna offers a gain 2 dBi Typ. and low VSWR 1.5:1 with 2.92-Female connector. The use of foam covers between the outer polarization layers can effectively reduce the wind resistance on the antenna surface, especially in outdoor applications, and improve the mechanical stability of the antenna.

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Specifications

RM-BCA120-2
Parameters	Typical	Units
Frequency Range	1-20	GHz
Gain	2 Typ.	dBi
VSWR	1.5 Typ.
Polarization	45° slant
Connector	2.92-Female
Body Material	Al
Size	Φ204.0*163.5	mm
Weight	2.18	Kg
Power Handling,CW	20	W
Power Handling,Peak	40	W

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A biconical antenna is a classic type of broadband antenna. Its structure consists of two conical conductors placed tip-to-tip, typically employing a balanced feed. It can be visualized as the flared end of an infinite, balanced two-wire transmission line fed at its center, a design that is key to its wideband performance.

Its operating principle relies on the conical structure providing a smooth impedance transition from the feed point to free space. As the operating frequency changes, the active radiating region on the antenna shifts, but its fundamental characteristics remain consistent. This allows it to maintain stable impedance and radiation patterns over multiple octaves.

The key advantages of this antenna are its very wide bandwidth and its omnidirectional radiation pattern (in the horizontal plane). Its main drawback is its relatively large physical size, especially for low-frequency applications. It is widely used in Electromagnetic Compatibility (EMC) testing, radiated emissions and immunity measurements, field strength surveys, and as a broadband monitoring antenna.