US 8,947,174 B2Granted

Base station RF duplexer, RF module, and RF system

AssigneeHuawei Technologies Co., Ltd.

InventorsHaizhao Wang, Guangfu Si, Naier Meng, Bo Yang, Puke Zhou, Shengxiang Guo, Yi Zhang, Weihua Sun, Jianjun Zhou, Ke Zhang, Hao Li, Zhiwei Shang, Runxiao Zhang

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Abstract

The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability.

Claims5

Dependent claims

A base station Radio Frequency, RF, apparatus, comprising:

an enclosure,
an intermediate RF processing unit,
a duplexer, wherein the duplexer comprises a duplexer cavity and a first heat dissipation part, the duplexer cavity and the first heat dissipation part being integrally molded through die casting to form an entirety and the duplexer further comprising a first surface and a second surface opposite to the first surface,
and a cover plate,
wherein the enclosure is located on the first surface of the duplexer, and the intermediate RF processing unit is located inside the enclosure on the first surface of the duplexer so that the first heat dissipation part can dissipate heat of the intermediate RF processing unit, and the enclosure is assembled on the duplexer to have the intermediate RF processing unit located inside a cavity enclosed by the enclosure and the duplexer,
and wherein the cover plate is located on the second surface of the duplexer and covers the duplexer cavity to protect elements in the duplexer cavity.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/195,409Filed 3 Mar 2014 · continuation
Priority: CN 2009 1 010543713 Feb 2009
Published: US 2014/0176256 A126 Jun 2014
Granted: 3 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H03H 7/463
Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source: duplexers
H01P 1/213
Frequency-selective devices, e.g. filters: combining or separating two or more different frequencies
H01P 1/2136
Combining or separating two or more different frequencies: using comb or interdigital filters; using cascaded coaxial cavities
H01P 1/2138
Combining or separating two or more different frequencies: using hollow waveguide filters