Piezoelectric resonator, production method thereof, filter, duplexer, and communication device.

压电谐振器，及其制造方法，滤波器，双工器和通讯器件。

Dielectric resonator, dielectric filter, dielectric duplexer and method for manufacturing dielectric resonator.

介质谐振器，介质滤波器，介质双工器和介质谐振器的制造方法。

The utility model relates to a high integrated general duplexer module for mobile communication duplex tower top amplifiers.

一种用于移动通信双工塔顶放大器的高集成化通用双工器模块。

The circuit design part mainly introduces the duplexer design with lumped apices filter, and the antenna switch design with PIN diode.

在电路结构设计部分，主要讨论了采用集总参数传输零点滤波器实现天线双工器和采用PIN管实现天线开关的设计方法。

This paper gives the particular description of theoretical analysis and practical design for duplexer in the mobile communication system.

文章以无绳电话双工器为例，介绍了在无线通信产品中广泛使用的关键元件——双工器的作用、结构和检测方法。