A Planar Spiral Antenna is a high-performance broadband antenna widely used in modern RF and microwave systems. Thanks to its compact planar structure, wide frequency coverage, circular polarization capability, and stable radiation performance, the Planar Spiral Antenna is an ideal solution for applications such as direction finding, spectrum monitoring, electronic warfare, surveillance systems, and advanced communication platforms.
The RM-PSA1840-5 from RF MISO is a right-hand circularly polarized planar spiral antenna covering the 18–40 GHz frequency range. Designed for broadband microwave performance, it is a practical solution for systems that require wide frequency coverage, reliable polarization characteristics, and a compact antenna profile.
RM-PSA1840-5（18-40GHz)
This antenna is suitable for a range of high-frequency applications, including EMC testing, reconnaissance, orientation, remote sensing, and flush-mounted vehicle platforms. Its broadband design allows a single antenna to support multiple frequency requirements, which can simplify system architecture and reduce the need for additional antenna components.
The planar spiral structure also supports easier integration into space-limited systems. For vehicle-mounted applications, the antenna can be installed in a flush-mounted configuration, helping reduce external protrusion and supporting a lower-profile platform design. This makes it a good fit for installations where mechanical integration and aerodynamic considerations are important.
In addition to being used as a standalone antenna, the RM-PSA1840-5 can also function as a feed element for reflector satellite antennas. This gives system designers more flexibility when developing broadband microwave and satellite-related platforms. Whether used for sensing, surveillance, test environments, or communication subsystems, the antenna offers a balanced combination of bandwidth, polarization performance, and installation versatility.
For engineers looking for a compact and dependable 18–40 GHz planar spiral antenna, the RM-PSA1840-5 provides a solid option for demanding RF and microwave applications.
Specifications
|
RM-PSA1840-5 |
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Parameters |
Typical |
Units |
|
Frequency Range |
18-40 |
GHz |
|
Gain |
5 Typ. |
dBi |
|
VSWR |
≤2.5 Typ. |
|
|
Polarization |
R-H Circular Polarization |
|
|
Connector |
2.92-Female |
|
|
Material |
Al/Epoxy fiberglass |
|
|
3dB Beam width |
60°- 80° |
|
|
Size(L*W*H) |
Φ33.2*36.9(±5） |
mm |
|
Antenna Cover |
Yes |
|
|
Waterproof |
Yes |
|
|
Weight |
0.01 |
Kg |
|
Power Handling, CW |
15 |
w |
|
Power Handling, Peak |
150 |
w |
Simulated Results
Gain(RHCP)
VSWR
Axial Ratio
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Post time: Apr-24-2026
