In this paper, a development of low cost, miniature, highly integration broadband RF transceiver front-end using the high selectivity hybrid resonator RF bandpass filters, and diplexer integrated with shielding case is presented. The proposed RF transceiver frontend operates at the 2.7 GHz for transmitting and 2.4 GHz for receiving, supporting a channel bandwidth of 100 MHz with frequency division duplexing mode. The designed low loss, high selectivity hybrid resonator bandpass filters are utilized to channel selection and reject the interference signal. The high isolation diplexer is employed to separate the Tx and Rx signals and reject the interferences from other systems to the RF receiver as well as filter out the harmonics generated by the RF transmitter. The measured performance of the proposed RF transceiver front-end module is superior to the requirements as well as can support high spectrum efficiency and high data rate communications with low error vector magnitude.

本文介绍了一种使用高选择性混合谐振器射频带通滤波器和集成屏蔽罩的双工器的低成本、微型、高集成度宽带射频收发器前端的开发。所提出的射频收发器前端工作在 2.7 GHz 发射和 2.4 GHz 接收，支持频分双工模式的 100 MHz 信道带宽。设计的低损耗、高选择性混合谐振器带通滤波器用于信道选择和抑制干扰信号。高隔离双工器用于分离Tx和Rx信号，抑制其他系统对射频接收器的干扰，滤除射频发射器产生的谐波。