TDK Product Features
TDK offers an extensive lineup of high-frequency products and modules used in mobile devices such as smartphones and mobile phones, wireless equipment for automotive and base station use, and applications such as navigation, Bluetooth connection, and wireless LAN. A fixed frequency is used for communication between wireless devices. A directional coupler has functions to pick up a part of the output in order to constantly maintain and control the output gain of the power amplifier (PA), and to provide feedback to the PA input. Our directional couplers 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, etc.