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.

Product Detail

ANTENNA KNOWLEDGE

Product Tags

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 Circular Polarization Horn Antenna is a specialized microwave antenna that converts linearly polarized signals into circularly polarized waves through an integrated polarizer. This unique capability makes it particularly valuable in applications where signal polarization stability is critical.

Key Technical Features:

Circular Polarization Generation: Utilizes dielectric or metallic polarizers to create RHCP/LHCP signals
Low Axial Ratio: Typically <3 dB, ensuring high polarization purity
Broadband Operation: Generally covers 1.5:1 frequency ratio bandwidths
Stable Phase Center: Maintains consistent radiation characteristics across frequency band
High Isolation: Between orthogonal polarization components (>20 dB)

Primary Applications:

Satellite communication systems (overcoming Faraday rotation effect)
GPS and navigation receivers
Radar systems for weather and military applications
Radio astronomy and scientific research
UAV and mobile communication links

The antenna’s ability to maintain signal integrity regardless of orientation changes between transmitter and receiver makes it indispensable for satellite and mobile communications, where signal polarization mismatch can cause significant degradation.