Mimosa Sector Antenna 4.9-6.4 GHz 19 dBi Dual-Slant Polarization

In this review the Mimosa N5-45x2 sector antenna is assessed for fixed wireless and tower deployments; it is aimed at network engineers and ISPs who need strong noise rejection and long-distance links. The bottom line: the N5-45x2 stands out because of its combination of wideband 4.9-6.4 GHz operation and industry-leading 43 dB front-to-back performance, which makes it particularly effective at reducing interference at collocated sites while supporting public safety and licensed spectrum where regulations allow.

Key Features

• Wideband coverage: Supports 4.9-6.4 GHz operation so operators can use public safety and licensed channels in addition to unlicensed bands, adding up to 800 MHz of spectrum where permitted.
• Dual-slant polarization: The 45o dual-slant sector enables use with any third-party 2x2 MIMO radio or paired for 4x4 MIMO, allowing flexible deployment options and spectrum reuse for capacity gains.
• High gain: 19 dBi gain provides the long-distance performance expected for fixed wireless broadband links while maintaining sector coverage.
• Exceptional front-to-back rejection: A 43 dB FTB ratio delivers industry-leading isolation from rear and adjacent interference, improving throughput on crowded towers.
• Side lobe suppression: Strong side lobe rejection helps reduce cosite noise, which simplifies planning at multi-operator collocation locations.
• Third-party compatibility: Works with any 2x2 MIMO radio, making it a flexible choice when pairing with existing radios or Mimosa access points.

Who It's For

The Mimosa N5-45x2 is ideal for ISPs, fixed wireless operators, and tower site managers who need a sector antenna that prioritizes noise rejection and spectrum flexibility. Its wideband 4.9-6.4 GHz support is valuable for deployments that must include public safety or licensed channels in addition to unlicensed bands.

Smaller backyard installers or users seeking a simple consumer-grade antenna should look elsewhere; this product is optimized for professional network deployments and collocation environments rather than plug-and-play consumer Wi-Fi scenarios.

Pros & Cons

Pros

• Industry-leading 43 dB front-to-back performance provides excellent isolation at collocated tower sites.
• Wide 4.9-6.4 GHz band support gives access to additional spectrum where regulations permit, including public safety channels.
• Dual-slant 45o polarization supports flexible MIMO configurations and spectrum reuse strategies.
• Compatible with third-party 2x2 MIMO radios, enabling upgrades without replacing radios.

Cons

• Designed for professional fixed wireless use, so its features and form factor are unnecessary for basic consumer setups.
• Technical installation and alignment are required to realize the full noise rejection benefits at tower sites.

Specifications

Frequency range	4.9-6.4 GHz
Gain	19 dBi
Polarization	Dual-slant 45o
Sector beamwidth	45 degrees
Front-to-back ratio	43 dB
Compatibility	Third-party 2x2 MIMO radios; pairs with Mimosa A5c for 4x4 MIMO

Our Verdict

The Mimosa N5-45x2 is a strong choice for professional fixed wireless networks that require superior noise rejection and flexible spectrum support. Operators who manage collocated towers or need licensed and public safety band access will find the antenna good value for improving range and reducing interference, provided they accept the professional installation and alignment requirements.

Frequently Asked Questions

Can this antenna be used with non-Mimosa radios?
Yes, the N5-45x2 is compatible with any third-party 2x2 MIMO radio, and two units can be paired with the Mimosa A5c for 4x4 MIMO.

Does it support public safety frequencies?
It supports 4.9 GHz public safety applications and multipoint licensed operation up to 6.4 GHz where local regulations allow.

Is the antenna suitable for small consumer WiFi setups?
No, it is designed for professional fixed wireless deployments and collocated tower sites rather than home consumer use.