High-frequency module
AssigneeMurata Manufacturing Co., Ltd.
InventorHiromichi Kitajima
Life of this patent
Estimating the term…
Abstract
In a high frequency module, mounting lands for reception signal output side ports of SAW duplexers, respectively, on a top surface of a multilayer body are arranged so as to be superposed on reception side external connection lands on a bottom surface of the multilayer body along the layer direction and the mounting lands are directly connected to the reception side external connection lands via holes. Transmission side external connection lands are located on the bottom surface of the multilayer body. The transmission side external connection lands are connected to mounting lands for transmission signal input side ports on the top surface of the multilayer body via certain inner layer electrodes that do not come close to the via holes of the reception system and the via holes.
Claims20
A high-frequency module comprising:
- a switch integrated circuit that includes a common terminal and a plurality of individual terminals;
- a surface acoustic wave duplexer that is connected to the individual terminals and that multiplexes and demultiplexes a transmission signal and a reception signal of a communication signal;
- a multilayer body that includes mounting lands with which the switch integrated circuit and the surface acoustic wave duplexer are mounted on a certain surface other than a bottom surface and including external connection lands on the bottom surface and having a certain three-dimensional shape;
- a transmission side external connection land with which the transmission signal is input;
- an external connection land connected to an antenna;
- a reception side external connection land with which the reception signal is output are provided along opposing sides, in a plan view of the multilayer body, and the transmission side external connection land and the external connection land connected to the antenna are spaced apart from the reception side external connection land;
- and
- a reception side mounting land where a reception signal side port of the surface acoustic wave duplexer is mounted is connected to the reception side external connection land by via holes.
Dependencies are inferred from the claim text.