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A diplexer is used in dual-band devices for smartphones and wireless devices such as wireless LAN. It is located at the entrance from the antenna, and is a filter element of the 3-port that separates the two frequency ranges of the dual-band.
TDK's diplexers are designed to achieve miniaturization and low insertion loss, while also supporting high functionality. They are also ideal for embedding in modules. Our diplexers using low temperature co-fired ceramics (LTCC) are available in a wide range of products with variations in frequency, shape and size, terminal structure, specification values, and more.