TDK Group recently released a new band for LTE EPCOS (EPCOS) 1 a duplexer, which is characterized by up to 60 dB when transmitting and receiving channels have good barrier properties. The B8651 duplexer is based on SAW technology and has a small package size of only 1.8 mm x 1.4 mm. Due to its good isolation between transmitted and received signals, the new EPCOS (EPCOS) duplexer can be combined with an envelope detector to save power amplifier, without additional pre-filtering. This significantly simplifies the front-end design, which greatly reduces costs. Another advantage of the new duplexer is the low typical insertion loss and only 1.9 dB of transmit channel, which further saves power and extends battery life. The component is mainly used in LTE USB devices including smartphones, tablets and laptops.
Mainly used in smartphones, tablets and LTE USB devices
Key features and good isolation performance up to 60 dB
Typical low insertion loss with a transmit band of only 1.9 dB
Can be combined with an envelope detection power amplifier without additional filters
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