Circularly Polarized Horn Antenna 20dBi Typ. Gain, 24.5-27.5 GHz Frequency Range RM-CPHA2427-20

Short Description:

RF MISO’s Model RM-CPHA2427-20 is LHCP circularly polarized horn antenna that operates from 24.5 to 27.5 GHz. The antenna offers a typical gain of 20 dB and low VSWR 1.1Typ. The antenna is equipped with a circular polarizer, a circular wave-guide to circular wave-guide Converter and a conical horn antenna. Antennas are widely used in antenna far-field testing, radio frequency radiation testing and other scenarios.

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Features

● Low VSWR

● Symmetrical Plane Beamwidth

● LHCP

● Light Weight

Specifications

RM-CPHA2427-20
Parameters	Specification	Unit
Frequency Range	24.5-27.5	GHz
Gain	20 Typ.	dBi
VSWR	1.1 Typ.
AR	<1	dB
Polarization	LHCP
Interface	2.92-Female
Material	Al
Finishing	Paint
Average Power	20	W
Peak Power	40	W
Size (LWH)	159.6*Φ53.4 (±5)	mm
Weight	0.12	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).

probe antenna