CN2657318Y

CN2657318Y - CDMA/GSM double-frequency circuit connector

Info

Publication number: CN2657318Y
Application number: CNU2003201083422U
Authority: CN
Inventors: 封建华
Original assignee: Ziguang Communication Technology Co Ltd
Current assignee: Ziguang Communication Technology Co Ltd
Priority date: 2003-11-25
Filing date: 2003-11-25
Publication date: 2004-11-17
Anticipated expiration: 2013-11-25

Abstract

The utility model relates to a signal filtering device of wireless communication, especially a double frequency combiner which deals with signals of CDMA network and GMS network, thus CDMA network and GMS network sharing one antenna and cable system or indoor distributed system. Two cavity filters which is applicable for CDMA network and GMS network are designed on a same material. Ends of the two filters are connected by a coupling wire to a same cable head (port of combination), the other ends are separated and connected to their respective cable head (port of CDMA, port of GMS). Using the combiner in the antenna and cable system can realize sharing a same antenna for CDMA network and GMS network. Using the combiner in the indoor distributed system can realize sharing a same indoor distributed system for CDMA network and GMS network.

Description

The CDMA/GMS dual-frequency channel merger

Technical field

The utility model relates to a kind of wireless communication signals filter, especially the dual-frequency channel merger that cdma network and GMS network signal are handled.

Background technology

In the no communications field, there is multiple different communication standard.The communication network of CDMA and two kinds of standards of GSM just is provided simultaneously as CHINAUNICOM.In cdma network is built, in order to utilize original communications infrastructure, reduce repeated construction, to save network investment and operation cost as far as possible, the common colocation site construction of cdma base station, be provided with and its antenna-feedback system is mostly independent, like this as run into iron tower or the roof space is limited, then be difficult to settle too many antenna; Even can settle, two cover systems have also increased cost, have strengthened installation difficulty.On the other hand, the indoor distributed system of networks with different systems also is independent setting usually, has caused repeated construction too, has increased problems such as cost, waste material.

Summary of the invention

In order to overcome CDMA and GMS network antenna-feedback system and indoor distributed system existing defective is set independently, the utility model provides a kind of CDMA/GMS dual-frequency channel merger, this mixer merges with the GMS Signal Separation or with the signal that separates by the CDMA that will mix, realizes shared to antenna-feedback system and indoor distributed system of two kinds of networks.

The technical scheme that its technical problem that solves the utility model adopts is to be applicable to that respectively two cavity body filter designs of CDMA and GMA network signal are on same block of material.One end of two filter is by the coupled-wires connection and insert same cable end (closing the crossing), the disconnected from each other and connection cable end (CDMA mouth, GMS mouth) separately of the other end.Use this mixer in antenna-feedback system, can realize that CDMA and GMS network use the same antenna: the mixed signal that antenna receives enters mixer from closing the crossing, exports CDMA and GMS signal by two filters respectively from CDMA and GMS mouth respectively.Use this mixer in indoor distributed system, realize that then CDMA and GMS network use same indoor distributed system: network signal enters CDMA and GMS mouth respectively, and through after the filtering, CDMA and GMS signal are incorporated into and closed the crossing, enter same indoor distributed system.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a front of the present utility model internal structural map.

Fig. 2 is positive external structure figure of the present utility model.

Fig. 3 is a lateral outer structural map of the present utility model.

Among the figure 1, coupled-wires, 2, resonant rod, 3, little coupling column, 4, cavity, 5, big coupling column, 6, input lead, 7, cap assembly, 8, screw (fixed roof), 9, screw (attached cable head), 10, N type cable end (GMS mouth), 11, N type cable end (CDMA mouth), 12, N type cable end (closing the crossing), 13, the adjusting rod assembly, 14, tuning screw rod.

Embodiment

In Fig. 1, two parts of isolating mutually about the cavity on the same block of material (4) is divided into, the left side is the GSM traffic filter, the right side is the CDMA traffic filter.Input lead (6), resonant rod (2) that the GMS filter includes N type cable end (10), connection N type cable end (10) and first (counting from N type cable end) resonant rod (2) have seven joints, one big coupling column (5) is arranged, one adjusting rod assembly (13) is arranged, at the 6th and the 7th internode one little coupling column (3) is arranged at the second and the 4th internode at first and two internodes.The CDMA traffic filter on right side and GMS traffic filter similar, difference are that first segment resonant rod (2) left side has an independent resonant rod in addition, has a little coupling column (3), no adjusting rod assembly between this two resonant rod.The final section resonant rod (2) of two filter is connected by coupled-wires (1), and this coupled-wires connects N type cable end (closing the crossing) (12) simultaneously.Have on the cap assembly (7) and resonant rod and the corresponding tuning screw rod of cavity (14).Cap assembly (7) is connected with cavity (4) by screw (8).

Need to prove: the joint number of resonant rod, the various parameters of other of the size of coupling column and filter are all set as required, there is no fixedly requirement.

Claims

1, a kind of CDMA/GMS dual-frequency channel merger is characterized in that: comprise two cavity body filters that are applicable to CDMA and GMA network signal respectively on the same block of material; The cavity of two filter is isolated mutually, and some resonant rods, coupling column and adjusting rod assembly are arranged respectively in the cavity; The resonant rod of two filter one end connects by coupled-wires and inserts same cable end, and the resonant rod of the other end is respectively by input lead connection cable end separately; Be stamped cap assembly on the cavity, have on the cap assembly some stretch in the cavity with resonant rod and the corresponding tuning screw rod of cavity.

2, a kind of as the said CDMA/GMS dual-frequency channel merger of claim 1, it is characterized in that: the quantity of the resonant rod in said two filters is respectively 6 to 10 joints.