Circularly Polarized Horn Antenna 16dBi Typ. Gain, 2-18 GHz Frequency Range RM-CPHA218-16

Short Description:

RF MISO’s Model RM-CPHA218-16 is RHCP, LHCP or dual circularly polarized horn antenna that operates from 2 to 18GHz. The antenna offers a typical gain of 16 dBi and low VSWR 1.5:1.

The antenna is equipped with an ultra-wideband stripline coupler, suitable for ultra-wideband horn antennas. It has uniform gain in the whole frequency band, providing efficient performance characteristics and directivity. It can be widely used in EMI detection, direction, reconnaissance, antenna gain and pattern measurement and other application fields.

Product Detail

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Product Tags

Features

● Low VSWR

● High Power handling

● Symmetrical Plane Beamwidth

● RHCP, LHCP or Dual Circularly

● Military Airborne Applications

Specifications

RM-CPHA218-16
Parameters	Specification	Unit
Frequency Range	2-18	GHz
Gain	16 Typ.	dBi
VSWR	1.5 Typ.
AR	2 Typ.
Polarization	RHCP or LHCP or Dual Circularly
Interface	SMA-Female
Material	Al
Finishing	Paint
Average Power	50	W
Peak Power	3000	W
Size (LWH)	282143143 (±5)	mm
Weight	0.96	kg

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The circularly polarized horn antenna is a specialized horn antenna that converts linearly polarized waves into circularly polarized waves by integrating a polarizer (typically designed with multi-stage dielectric phase-delay structures or helical elements). Its core performance parameters include low axial ratio (AR < 3 dB), high polarization purity, and broad bandwidth operation (typically with a 2:1 frequency ratio). This antenna effectively mitigates multipath effects and polarization mismatch losses. It offers irreplaceable advantages in applications requiring polarization stability, such as satellite communications (eliminating Faraday rotation effects), GPS navigation, radar target identification, and UAV data links, while maintaining the inherent characteristics of horn antennas, including high gain (12-25 dBi) and low voltage standing wave ratio (VSWR < 1.5).

circular polarized antenna