• Latest
  • Trending
  • All
  • Capacitors
  • Resistors
  • Inductors
  • Filters
  • Fuses
  • Non-linear Passives
  • Applications
  • Integrated Passives
  • Oscillators
  • Passive Sensors
  • New Technologies
  • Aerospace & Defence
  • Automotive
  • Industrial
  • Market & Supply Chain
  • Medical
  • RF & Microwave
  • Telecommunication

RF Transformer Explained

27.11.2019

Optimizing Tantalum Capacitor Manufacturing Through Yield Strength and Plasticity Analysis in Welding Processes

30.11.2023

Researchers Present New Record Energy Storage Carbon Material for Supercapacitors

30.11.2023

Q Factor Modelling; How Poles and Zeros Relate to Q Factor

30.11.2023

Bourns Unveils New Data and Signal Surge Protective Devices

30.11.2023

Bourns Unveils Thermally Protected MOV Surge Protective Devices

28.11.2023

 Exxelia Opens Manufacturing Site in Morocco

27.11.2023
  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About
No Result
View All Result
NEWSLETTER
Passive Components Blog
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Market Insights
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Optimizing Tantalum Capacitor Manufacturing Through Yield Strength and Plasticity Analysis in Welding Processes

    Researchers Present New Record Energy Storage Carbon Material for Supercapacitors

    Q Factor Modelling; How Poles and Zeros Relate to Q Factor

    Bourns Unveils New Data and Signal Surge Protective Devices

    Bourns Unveils Thermally Protected MOV Surge Protective Devices

     Exxelia Opens Manufacturing Site in Morocco

    Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

    How Clock Oscillator Works

    Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Addressing EMC Issues; Texas Instruments and Würth Elektronik Webinar

    DC-Link Film Capacitors for DC-Charger Applications; WE Webinar

    Transformer Design for EMC; WE Webinar

    Filter Calculation and Selection with REDEXPERT EMI Filter Designer; WE Webinar

    Experimental Demonstration of Inductor Back Electromotive Force EMF

    Charging/Discharging of Linear andNon-linear Capacitors

    How to Select Inductor For Switching Power Supply

    Oscillators Integration, Selection Guide and Design In

    Input Capacitor Selection for Power Supplies – Part 3: Electrolytic Capacitors

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Market Insights
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Optimizing Tantalum Capacitor Manufacturing Through Yield Strength and Plasticity Analysis in Welding Processes

    Researchers Present New Record Energy Storage Carbon Material for Supercapacitors

    Q Factor Modelling; How Poles and Zeros Relate to Q Factor

    Bourns Unveils New Data and Signal Surge Protective Devices

    Bourns Unveils Thermally Protected MOV Surge Protective Devices

     Exxelia Opens Manufacturing Site in Morocco

    Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

    How Clock Oscillator Works

    Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Addressing EMC Issues; Texas Instruments and Würth Elektronik Webinar

    DC-Link Film Capacitors for DC-Charger Applications; WE Webinar

    Transformer Design for EMC; WE Webinar

    Filter Calculation and Selection with REDEXPERT EMI Filter Designer; WE Webinar

    Experimental Demonstration of Inductor Back Electromotive Force EMF

    Charging/Discharging of Linear andNon-linear Capacitors

    How to Select Inductor For Switching Power Supply

    Oscillators Integration, Selection Guide and Design In

    Input Capacitor Selection for Power Supplies – Part 3: Electrolytic Capacitors

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

RF Transformer Explained

27.11.2019
Reading Time: 2 mins read
A A

Source: RF Design article

RF Transformers are two, or more, port passive devices with a wide range of uses for many RF applications. One of the most common uses of an RF transformer is the Balun, which provides efficient coupling between unbalanced transmission circuits and balanced circuits. Other common uses are for impedance matching between circuits of different impedances. Other applications include DC isolation, injecting DC current, or enhancing the common mode rejection of a circuit.

RelatedPosts

Integrated Bulk Acoustic Wave (BAW) Technology Explained – Texas Instruments and Mouser Electronics EE Journal Chalk Talk Video

Würth Elektronik Introduces Robust, Resilient, Mountable Radio Interference Suppression Choke

What is RFID? How RFID works? RFID Explained in Detail

RF transformers function via the mechanism of magnetically coupling between conductors structured in such a way to provide the desired function. There are a wide range of RF transformer technologies, including core & wire, transmission line, low temperature co-fired ceramic (LTCC), and monolithic microwave integrated circuit (MMIC), and transformers are built differently depending on the technology. For instance, the original transformer technology was core & wire, where two insulated conductors were wrapped around a ferromagnetic or air core.

With a core & wire transformer, magnetic flux developed within the core by injecting an alternating current through one of the conductive paths results in a current in the secondary path. The ratio of the number of turns around the core determines the extent of the impedance transformation from one side of the transformer to the other. In this case, the performance of the RF transformer is dictated largely by the properties of the core material used. For example, if a ferromagnetic core is used, the core’s magnetic behavior is dependent on the temperature, frequency, and power of signals passing through it. Hence, careful selection of core material and transformer fabrication practices are necessary to realize optimal transformer performance.

Transformers can also be made by wrapping transmission lines around ferromagnetic or air cores. Moreover, quarter-wave lengths of transmission lines can also be used to build another type of RF transformer. LTCC and MMIC RF transformers are fabricated using planar conductors and insulative layers to develop very high frequency RF transformers in compact form factors. As the physical size of an RF transformer greatly influences the RF performance parameters, LTCC and MMIC RF transformers typically exhibit poor low frequency performance compared to physically larger core & wire and transmission line transformers.

Common RF Transformer Applications

  • Impedance transformation (i.e. impedance matching)
  • Efficiently coupling balanced to unbalanced circuits
  • Voltage transformation
  • Providing DC isolation between circuits
  • Injecting DC current into an RF path
  • Enhancing common mode rejection (CMR)
  • Ground isolation
  • Filtering high frequency signals from a signal line

featured image source: Pasternack

 

Related Posts

Market & Supply Chain

 Exxelia Opens Manufacturing Site in Morocco

27.11.2023
51
Inductors

Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

23.11.2023
45
Inductors

Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

23.11.2023
73

Upcoming Events

Dec 4
20:00 - 21:00 CET

Film Capacitors: The Versatility and Stability

Dec 5
15:00 - 16:00 CET

High Voltage Power Distribution Units and Fuse Selection Importance

Dec 6
11:00 - 12:00 CET

Miniaturization, mechatronics, microvia: SLIM.flex PCB

View Calendar

Popular Posts

  • What is a Dielectric Constant of Plastic Materials ?

    4 shares
    Share 4 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • Understanding High-Precision Resistor Temperature Coefficient of Resistance

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    0 shares
    Share 0 Tweet 0
  • Leakage Current Characteristics of Capacitors

    0 shares
    Share 0 Tweet 0
  • Optimizing Tantalum Capacitor Manufacturing Through Yield Strength and Plasticity Analysis in Welding Processes

    0 shares
    Share 0 Tweet 0
  • Trendforce Predicts Modest Growth of MLCCs Through 2024

    0 shares
    Share 0 Tweet 0
  • How to Choose the Right Inductor for DC-DC Buck Applications

    0 shares
    Share 0 Tweet 0
  • Coefficient of Linear Thermal Expansion on Polymers Explained

    0 shares
    Share 0 Tweet 0
  • Filter Poles and Zeros Explained

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Archive

2023
2022
2021
2020
2019
2018
2017

Symposium

Passive Components Networking Symposium

Passives e-Learning

Knowledge Blog

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

© EPCI - Premium Passive Components Educational and Information Site

No Result
View All Result
  • Home
  • News
  • Video
  • Knowledge Blog
  • Preferred Suppliers
  • Events

© EPCI - Premium Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.