Ultraband RF MMICs: Wi-Fi LNAs, RF Switches and Front-End Modules

Emerges is an authorised Ultraband Technologies distributor in Singapore, supplying Ultraband's RF MMIC range for Wi-Fi, IoT and wireless infrastructure. The range covers the AN5404 and AN5405 ISM-band low noise amplifiers, the SW470A 0.1 to 6 GHz SPDT switch and the FM5337 and FM5755 Wi-Fi front-end modules, all in compact DFN or QFN packages for standard SMT assembly.
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Ultraband GaN / GaAs MMIC die

Authorised Ultraband Technologies Distributor

Ultraband's RF MMIC range spans microwave through mmWave for high-speed communications and radar, built on GaN-on-SiC, GaAs pHEMT and InP HEMT processes with an emphasis on linearity, low noise and power handling.

The Wi-Fi parts listed here run from a single 3.3 V supply where specified and come in 1.5 x 1.5 mm DFN or 3 x 3 mm QFN packages, so they drop straight into router, access point and IoT module designs. The AN5404 and AN5405 LNAs improve receiver sensitivity with noise figures below 1.5 dB, while the FM5337 and FM5755 front-end modules deliver up to 22.5 dBm of linear output power.

For Ku and Ka-band designs, see the Ultraband mmWave MMIC range.

Ultraband GaN / GaAs MMIC die

AN5404: 5 GHz ISM-band LNA for 4.9 to 5.9 GHz Wi-Fi receivers, with sub-1.5 dB noise figure from a 3.3 V supply.

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Ultraband GaN / GaAs MMIC die

AN5405: 2.4 GHz ISM-band LNA with 13.5 dB gain and NF below 1.2 dB, for Wi-Fi, Bluetooth-band and IoT receivers.

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Ultraband GaN / GaAs MMIC die

SW470A: Wideband 0.1 to 6 GHz SPDT switch with insertion loss below 1.1 dB and 55 dBm IIP3.

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Ultraband GaN / GaAs MMIC die

FM5337: 2.4 GHz Wi-Fi front-end module with 34 dB gain and up to 22.5 dBm linear output power.

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Ultraband GaN / GaAs MMIC die

FM5755: 5 GHz Wi-Fi front-end module for 5.15 to 5.85 GHz, 28.5 dB gain and up to 22.5 dBm linear output power.

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Ultraband RF MMIC Range

Low Noise Amplifiers (LNA)

Wi-Fi LNA

AN5404

Available

5 GHz ISM-band LNA for 4.9 to 5.9 GHz Wi-Fi receivers, with sub-1.5 dB noise figure from a 3.3 V supply.

  • Frequency range: 4.9 to 5.9 GHz
  • Gain: 13 dB
  • Noise figure: < 1.5 dB
  • Package: DFN 1.5 x 1.5 mm
Applications: IoT devices, Wi-Fi, Smart home.
View AN5404 detailsRequest datasheet
Wi-Fi LNA

AN5405

Available

2.4 GHz ISM-band LNA with 13.5 dB gain and NF below 1.2 dB, for Wi-Fi, Bluetooth-band and IoT receivers.

  • Frequency range: 2.4 to 2.5 GHz
  • Gain: 13.5 dB
  • Noise figure: < 1.2 dB
  • Package: DFN 1.5 x 1.5 mm
Applications: IoT devices, Wi-Fi, Smart home.
View AN5405 detailsRequest datasheet

RF Switches

SPDT RF switch

SW470A

Available

Wideband 0.1 to 6 GHz SPDT switch with insertion loss below 1.1 dB and 55 dBm IIP3.

  • Frequency range: 0.1 to 6 GHz
  • Insertion loss: < 1.1 dB
  • Input P1dB: 39 dBm
  • Package: DFN 1.5 x 1.5 mm
Applications: Base stations, Wi-Fi, Bluetooth modules, General wireless communications.
View SW470A detailsRequest datasheet

Wi-Fi Front-End Modules (FEM)

Wi-Fi FEM

FM5337

Available

2.4 GHz Wi-Fi front-end module with 34 dB gain and up to 22.5 dBm linear output power.

  • Frequency range: 2.4 to 2.5 GHz
  • Gain: 34 dB
  • Linear output power (EVM): 20 dBm @ -43 dB EVM (HE40 MCS11)
  • Package: QFN 3 x 3 mm
Applications: Wireless routers, Access points, IoT devices.
View FM5337 detailsRequest datasheet
Wi-Fi FEM

FM5755

Available

5 GHz Wi-Fi front-end module for 5.15 to 5.85 GHz, 28.5 dB gain and up to 22.5 dBm linear output power.

  • Frequency range: 5.15 to 5.85 GHz
  • Gain: 28.5 dB
  • Linear output power (EVM): 17 dBm @ -43 dB EVM (VHT80 MCS11)
  • Package: QFN 3 x 3 mm
Applications: Wireless routers, Access points, IoT devices.
View FM5755 detailsRequest datasheet

Ultraband RF MMIC Specifications Comparison

Part numberTypeFrequencyGainNF / ILLinearitySupplyPackageStatus
AN5404 Wi-Fi LNA 4.9 to 5.9 GHz 13 dB < 1.5 dB 7 dBm @ 5.5 GHz 3.3 V DFN 1.5 x 1.5 mm Available
AN5405 Wi-Fi LNA 2.4 to 2.5 GHz 13.5 dB < 1.2 dB 8 dBm @ 2.45 GHz 3.3 V DFN 1.5 x 1.5 mm Available
SW470A SPDT RF switch 0.1 to 6 GHz - < 1.1 dB 55 dBm 1.8 to 5 V / 0 V (control) DFN 1.5 x 1.5 mm Available
FM5337 Wi-Fi FEM 2.4 to 2.5 GHz 34 dB - 22.5 dBm @ -35 dB EVM (VHT40 MCS11) On request QFN 3 x 3 mm Available
FM5755 Wi-Fi FEM 5.15 to 5.85 GHz 28.5 dB - 22.5 dBm @ -35 dB EVM (VHT80 MCS9) On request QFN 3 x 3 mm Available

Understanding the Difference: Discrete LNA vs Front-End Module

What is a Low Noise Amplifier (LNA)

An LNA is the first active stage in a receiver. Its noise figure largely sets the sensitivity of the whole receive chain, so a low-NF part such as the AN5405 (below 1.2 dB) lets a radio hear weaker signals. A discrete LNA gives you full freedom over filtering, switching and layout.

What is a Front-End Module (FEM)

A Wi-Fi FEM integrates the transmit power amplifier and supporting front-end functions in one package, specified for linear output power at a given EVM. Modules such as the FM5337 and FM5755 reduce board area and design time for routers, access points and IoT devices.

Why Source Ultraband RF MMICs from Emerges Singapore

Sourcing Ultraband parts from an authorised distributor protects you on traceability, warranty and long-term support. Emerges is an authorised Ultraband Technologies distributor, so every part is genuine Ultraband product backed by full manufacturer support, and we can relay datasheets, samples and custom-design requests directly to Ultraband's engineering team in Taiwan.
For aerospace, defence and infrastructure procurement, certification matters. Emerges holds AS9120B and ISO 9001 certification and is registered as an IAQG aerospace electronics supplier, giving your quality and compliance teams the documentation trail they need. Singapore-based engineers provide technical pre-sales support, from MMIC selection and bare-die handling to phased array integration.
We ship to Singapore, Malaysia, Vietnam, Thailand and the wider Asia-Pacific region, backed by more than 30 years of experience supplying RF and microwave components to demanding sectors.

Related Ultraband and RF Products

Pair these RF MMICs with the rest of the Ultraband range and our other authorised RF lines.

Ultraband RF MMIC FAQs

Use the AN5405 for 2.4 to 2.5 GHz (13.5 dB gain, NF below 1.2 dB) and the AN5404 for 4.9 to 5.9 GHz (13 dB gain, NF below 1.5 dB). Both run from 3.3 V in a 1.5 x 1.5 mm DFN package.

The AN5404, AN5405 and SW470A are in DFN 1.5 x 1.5 mm packages, and the FM5337 and FM5755 front-end modules are in QFN 3 x 3 mm packages, all suitable for standard SMT assembly.

The SW470A is a wideband SPDT switch covering 0.1 to 6 GHz with insertion loss below 1.1 dB.

Yes. Request a quote or datasheet from any product page and Emerges will arrange documentation and samples with Ultraband.

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