Dual Circular Polarized Horn Antenna 10dBi Typ. Gain, 12-18 GHz Frequency Range RM-DCPHA1218-10

Short Description:

RF MISO’s Model RM-DCPHA1218-10 is dual circular polarized horn antenna that operates from 12 to 18GHz. The antenna offers a typical gain of 10dBi and low VSWR 1.4 Typ.The antenna RF ports are SMA-Female coaxial connector. The antenna can be widely used in EMI detection, orientation, reconnaissance, antenna gain and pattern measurement and other application fields.

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Specifications

RM-DCPHA1218-10
Parameters	Specification		Unit
Frequency Range	12-18		GHz
Gain	10 Typ.		dBi
VSWR	1.4 Typ.
Polarization	Dual Circular
AR	<1.3
Cross Polarization	30 Typ.		dB
Port Isolation	25 Typ.
3dB Beamwidth	E-Plane:37~53	H-Plane:37-53	deg
Interface	SMA-Female
Material	Al
Finishing	Paint
Average Power	50		W
Peak Power	100		W
Size (LWH)	82.442.542.5 (±5)		mm
Weight	0.109		kg

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The dual circularly polarized horn antenna is a high-performance antenna capable of simultaneously generating or receiving left-hand/right-hand circularly polarized waves. By integrating an ortho-mode transducer (OMT) and a circular polarizer (multi-stage dielectric phase-shifting structure or helical design), it enables independent dual-channel operation over a broad bandwidth (e.g., 2:1 frequency ratio), featuring extremely low axial ratio (<3 dB), high isolation (>30 dB), and a stable phase center. This antenna effectively addresses Faraday rotation effects in satellite communications, eliminates polarization mismatch losses, and supports polarization diversity and MIMO technology. It is widely used in applications with stringent demands for polarization purity, such as satellite communications on-the-move, deep space exploration, radar polarization measurement, and 5G millimeter-wave systems.

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