Title:
A DCS/WCDMA DUAL FREQUENCY SYNTHESIZER AND A general dual frequency synthesizer
Document Type and Number:
WIPO Patent Application WO/2008/141482
Kind Code:
A1
Abstract:
A DCS/WCDMA dual frequency synthesizer is provided in the present invention.
On the one hand, the synthesizer selects the distributed parameter capacitor
instead of the conventional applied capacitor, on the other hand, the direct
current circuit and the radio frequency circuit in the synthesizer are separated
physically, and each components including the capacitor are skillfully and
physically included. Therefore, based on the same principle, the present invention
further provides a dual frequency synthesizer applied in a larger range, and
the synthesizer continues to use the application spirit about the distributed
parameter capacitor of the said DCS/WCDMA dual frequency synthesizer. Because
the entire structure of the synthesizer is disposed again, the present invention
has the advantages of small volume, low loss, large power capacity and high isolation
between the circuits, etc.
Inventors:
SHU MENGMENG (CN)
HE TAO (CN)
HE BIN (CN)
HUANG JINGMIN (CN)
HE TAO (CN)
HE BIN (CN)
HUANG JINGMIN (CN)
Application Number:
PCT/CN2007/001709
Publication Date:
November 27, 2008
Filing Date:
May 28, 2007
Export Citation:
Assignee:
COMBA TELECOM SYSTEM CHINA LTD (CN)
SHU MENGMENG (CN)
HE TAO (CN)
HE BIN (CN)
HUANG JINGMIN (CN)
SHU MENGMENG (CN)
HE TAO (CN)
HE BIN (CN)
HUANG JINGMIN (CN)
International Classes:
H04B10/02
Foreign References:
| CN2718801Y | 2005-08-17 | |||
| CN2766354Y | 2006-03-22 | |||
| US20060046663A1 | 2006-03-02 | |||
| CN201018482Y | 2008-02-06 | |||
| CN201018487Y | 2008-02-06 |
Attorney, Agent or Firm:
GUANGZHOU SCIHEAD PATENT AGENT CO., LTD (Huihua Commercial & Trade BuildingNo.80, Xianlie Zhong Road,Guangzhou, Guangdong 0, CN)
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