Bourns LTCC Baluns

Introduction

Bourns LTCC Baluns are compact RF passive components designed to convert between balanced and unbalanced signal paths while providing impedance transformation. Built with low-temperature co-fired ceramic (LTCC) technology, these baluns support space-efficient wireless designs across a broad range of radio-frequency applications.

Part Description

The Bourns FBN1606N360D6, FBN2009N090D6, FBN2009N185D6, and FBN2009N230D6 are RF baluns intended for high-frequency signal conditioning in wireless and positioning circuits.

A balun, short for balanced-to-unbalanced transformer, is commonly used to interface differential RF transceivers, antennas, filters, and other single-ended 50 Ω RF circuitry. These Bourns devices provide a 50 Ω unbalanced port impedance and operate across frequency ranges from 800 MHz to 3900 MHz, making them suitable for many sub-6 GHz wireless bands.

The compact LTCC construction helps reduce PCB area while offering stable RF performance. The series can handle power levels up to 3 W, supporting both low-power communication devices and higher-power RF signal paths where appropriate.

Applications

Potential applications for Bourns LTCC Baluns include:

• Cellular communication modules
• LTE, 4G, and selected 5G sub-6 GHz designs
• GNSS and GPS positioning receivers
• Wi-Fi and Bluetooth RF front ends
• ISM-band wireless devices
• RF transceiver interfaces
• Differential antenna connections
• Impedance-matching networks
• Wireless sensor nodes
• IoT communication modules
• Remote monitoring equipment
• Compact RF test and measurement hardware

Industries

These RF baluns may be used in a variety of industries, including:

• Telecommunications
• Consumer electronics
• Internet of Things
• Automotive electronics
• Industrial automation
• Smart-home systems
• Medical electronics
• Asset tracking and logistics
• Navigation and positioning
• Aerospace and defense communications
• Test and measurement
• Wireless infrastructure

Usage Ideas

1. Compact GNSS Receiver Front End
   Use a Bourns LTCC balun to connect a differential GNSS receiver input to a 50 Ω antenna or RF filtering stage in a compact navigation device.

2. Bluetooth or Wi-Fi Sensor Module
   Integrate a balun between a differential wireless transceiver and a single-ended PCB antenna to simplify impedance matching in an IoT sensor node.

3. Cellular Tracking Device
   Design a small asset-tracking unit with a cellular modem, using an LTCC balun to interface differential RF circuitry with a 50 Ω antenna feed network.

Conclusion

Bourns LTCC Baluns provide a compact solution for balanced-to-unbalanced RF conversion and impedance transformation in wireless electronic systems. With operating coverage from 800 MHz to 3900 MHz, 50 Ω unbalanced ports, and power handling up to 3 W, the FBN1606N360D6 and FBN2009N-series devices are well suited to cellular, positioning, IoT, and other space-constrained RF applications.