Combining the inherent interference‑rejection of circular polarization with the high gain and low VSWR of a horn antenna, the circularly polarized horn is a key component in satellite communications, radar testing, and EMC measurements.
Key Advantages
•Polarization mismatch immunity – Circular polarization is insensitive to relative orientation between transmitter and receiver, ideal for mobile platforms (UAVs, vehicles) and satellite links.
•Multipath mitigation – Reflected circular waves reverse their handedness, allowing the receiver to naturally reject reflected signals – crucial in urban canyons, indoor, or over‑water environments.
•Low rain/fog attenuation – Circular polarization experiences less additional loss in rain, snow, and fog compared to linear polarization, improving outdoor link reliability.
•High gain and directivity – The horn structure delivers 19 dBi typical gain (6–18 GHz) with symmetric beams and low side lobes, serving as an ideal feed for reflector antennas or a stand‑alone far‑field test source.
Typical Applications
•Satellite ground stations and “comms‑on‑the‑move” antennas
•Radar systems (weather, surveillance, tracking)
•Antenna measurement and RF testing (gain/pattern reference)
•Broadband wireless communications and electronic warfare
RF MISO’s RM-CPHA618-19 is a high-performance circularly polarized horn antenna designed for broadband operation from 6 GHz to 18 GHz. It is available in both RHCP (Right-Hand Circular Polarization) and LHCP (Left-Hand Circular Polarization) versions, making it a flexible solution for a wide range of RF, microwave, and test applications.
This antenna provides a typical gain of 19 dBi across the operating band, ensuring strong signal directivity and reliable radiation performance. With a typical VSWR of 1.5:1, the RM-CPHA618-19 delivers efficient impedance matching and stable transmission characteristics, which are essential for accurate measurement and dependable system operation.
One of the key advantages of the RM-CPHA618-19 is its uniform gain over the full frequency range. This broadband consistency helps users achieve repeatable results in demanding environments where stable antenna performance is required. Its well-controlled radiation characteristics also make it suitable for systems that require precise signal transmission and reception.
The RM-CPHA618-19 can be widely used in applications such as EMI detection, direction finding, reconnaissance, antenna gain measurement, and radiation pattern testing. It is also a practical choice for laboratory research, EMC testing, microwave system evaluation, and other broadband antenna measurement tasks.
With its wide frequency coverage, circular polarization options, stable gain, and low VSWR, the RM-CPHA618-19 offers a reliable solution for engineers, researchers, and system integrators who need consistent performance in professional RF applications.
Simulation Data
Outline Drawing
Gain
VSWR
AR
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Post time: Apr-10-2026
