LC diplexersBasic knowledge about LC diplexers

What is an LC diplexer?

LC diplexers are sometimes referred to as RF diplexers.
A diplexer is a type of antenna duplexer that employs a splitter circuit to house filters for different frequency bands used by wireless devices in a single package. It allows two frequencies to be separated during reception and mixed during transmission.

Murata diplexers have low loss and excellent electrical characteristics. They are used in a variety of applications such as LTE and WLAN.

Below we describe what a filter is and explain the structure, types, and use benefits of LC filters.

Types of LC diplexers

LC diplexers can be classified into three types based on the different methods they use to separate frequencies.

Low-pass/high-pass diplexers

This type of diplexer combines a low-pass filter connected to the low-frequency port and a high-pass filter connected to the high-frequency port.
It is the most common type of diplexer.

Low-pass/high-pass diplexers

Low-pass/band-pass diplexers

This type of diplexer combines a low-pass filter connected to the low-frequency port and a band-pass filter connected to the high-frequency port.
This configuration is common in diplexers for Wi-Fi applications.

Low-pass/band-pass diplexers

Band-pass/band-pass diplexers

This type of diplexer combines a band-pass filter connected to the low-frequency port and a band-pass filter connected to the high-frequency port.

Band-pass/band-pass diplexers