CN201178475Y

CN201178475Y - Multi-frequency path integrating device

Info

Publication number: CN201178475Y
Application number: CNU2008200928392U
Authority: CN
Inventors: 王云兵
Original assignee: Shenzhen Guoren Communication Co Ltd
Current assignee: Shenzhen Guoren Communication Co Ltd
Priority date: 2008-03-19
Filing date: 2008-03-19
Publication date: 2009-01-07
Anticipated expiration: 2018-03-19

Abstract

A multi-frequency mixer comprises a cavity and a mixer signal output port formed on the front end of the cavity. The multi-frequency mixer is characterized in that a plurality of signal input ports are arranged on the rear end of the cavity; the cavity is divided into a plurality of inner cavities according to the number of the signal input ports; resonant columns are sequentially arranged in the each inner cavity, and a coupling window is arranged between the adjacent resonant columns in each inner cavity; and the inside of the cavity, where the mixer signal output port is arranged, is connected with each inner cavity through a common port. The common port is coupled to the resonant columns in each inner cavity or a common resonant column through a capacitor. The multi-frequency mixer can authentically achieve multi-frequency mixing, corresponding inner cavities can be arranged according to different combinations of the network, and the inner cavity can be made into round or square cavity according to the number of the resonant columns. The inner cavities are distributed in the cavity in a single layer to facilitate the debugging; and the common port is capacitive coupling, thereby achieving easy impedance matching and batch production of the port and lowering the debugging difficulty.

Description

Multiplefrequency mixer

[technical field]

The utility model belongs to electronic information and mobile communication technology field, relates to a kind of multiplefrequency mixer.

[background technology]

Existing electronic information and mobile communication network different cdma network, GSM network, DTV digital TV network, DCS network, PHS network, 3G network (having comprised WCDMA, TD-SCDMA, CDMA200), wlan network, WiMAX networks or the like of being divided into according to frequency, in the time will covering multiple network in the same building, generally need to install respectively and receive separately and emitter, this not only is provided with installs trouble, has also improved equipment cost simultaneously.Based on this problem, thus a kind of communication signal of multiple frequency can be merged and unified the transmission can be simplified communication apparatus and installed, reduce the multiplefrequency mixer of communication apparatus cost and be born.With the just triumphant Electronics Co., Ltd. in the Zhengjiang City patent No. be: 200520071822.5, the patent of " multiplefrequency mixer " by name is an example, is respectively arranged with before and after its cavity and closes road signal output port, PHS signal input port, WCDMA Rx signal input port, WCDMA Tx signal input port and WLAN signal input port; The cavity upper strata comprises WCDMA Rx inner chamber and WLAN inner chamber, and lower floor comprises PHS inner chamber and WCDMA Tx inner chamber, has corresponding oscillator to be arranged in order in each inner chamber.Above-mentioned patented product can merge the communication signal of multiple frequency and unified the transmission, structure is relatively reasonable, simple, but the public port of this product will mate port Impedance with many lead-in wires respectively, debugging difficulty is very big, and inner chamber is divided into levels and has also brought inconvenience to debugging, and be not easy to produce in batches, simultaneously owing to its structural limitations, 5 kinds of above signals of communication of frequency just can't all be unified to send.

[utility model content]

At some problems that prior art exists, a kind of novel multiplefrequency mixer of proposition of the present utility model, it can solve debugging difficulty big, be difficult for producing in batches and can't accomplish really that multifrequency closes the problem on road.

For achieving the above object, technical scheme provided by the utility model is:

A kind of multiplefrequency mixer, comprise a cavity, the front end of this cavity is provided with a mixer signal output port, it is characterized in that, the rear end of described cavity is provided with some signal input ports, inside cavity is arranged in order the resonance post according to the corresponding some inner chambers of how much being divided into of signal input port in each inner chamber, be provided with coupling window between the adjacent resonance post in each inner chamber; Wherein the inside cavity at mixer signal output port place communicates by a public port and each inner chamber.

Further, the public port of described multiplefrequency mixer is by on the resonance post or public resonance post that are capacitively coupled to each inner chamber.

Further, described each inner chamber individual layer is distributed in the cavity.

Further, described each inner chamber is divided into cylindrical cavity or square chamber according to the demand of structure.

Further, described resonance post is 5 to 14.

The multiplefrequency mixer that the utility model provides can accomplish really that multifrequency closes the road, and its inner chamber can be provided with corresponding inner chamber number according to the various combination of network, and the shape of inner chamber can be according to the number of resonance post different cylindrical cavity or the square chambeies of making; Each inner chamber individual layer is distributed in the cavity, convenient debugging; The public port of multiplefrequency mixer is a capacitive coupling, and port Impedance is mated easily, produces in batches easily, and debugging also can reduce difficulty.

[description of drawings]

Fig. 1 closes the cylindrical cavity structure chart on road frequently for embodiment one or six;

Fig. 2 closes the square cavity configuration figure on road frequently for embodiment two or six;

Fig. 3 closes the square cavity configuration figure on road frequently for the embodiment pseudo-ginseng;

[embodiment]

Below in conjunction with specific embodiment and accompanying drawing in detail the utility model is described in detail.

By Fig. 1, Fig. 2 as can be seen, the difference of embodiment one and embodiment two only is to have chosen respectively on the structure structure in cylindrical cavity and square chamber.With reference to figure, be provided with respectively before and after the six frequency combiner cavitys that the utility model provides and close road signal output port 1, GSM signal input port 2, DTV signal input port 3, CDMA signal input port 4, DCS signal input port 5 (cylindrical cavity port 5 is TD-SCDMA), TD-SCDMA signal input port 6 (cylindrical cavity port 6 is DCS), WCDMA signal input port 7.

With reference to Fig. 1, Fig. 2, cavity is made up of GSM inner chamber 8, DTV inner chamber 9, CDMA inner chamber 10, DCS inner chamber 11, TD-SCDMA inner chamber 12 and WCDMA inner chamber 13, and each inner chamber is provided with GSM resonance post 8A, DTV resonance post 9A, CDMA resonance post 10A, DCS resonance post 11A, TD-SCDMA resonance post 12A and WCDMA resonance post 13A respectively; Each inner chamber is because due to the structure, have that some resonance posts 17 can (two frequently close the public resonance post of Lu Zewu by public, each public resonance post about in six frequency combiners, having), the inside cavity at mixer signal output port 1 place communicates by public port 16 and each inner chamber, and public port 16 is again by on the public resonance post 17 that is capacitively coupled to each inner chamber; Resonance post in each inner chamber is sequentially arranged in corresponding signal input port respectively and closes between the signal output port of road, is provided with coupling window 15B between the adjacent resonance post.Be provided with 46 resonance posts in cavity altogether, wherein having in the GSM inner chamber in the cylindrical cavity structure to have in 9 (9 in square chambeies), the DTV inner chamber to have in 5 (6 in square chambeies), the CDMA inner chamber to have in 6 (7 in square chambeies), the DCS inner chamber to have in 8 (7 in square chambeies), the TD-SCDMA inner chamber has 9 (9 in square chambeies) in 6 (6 in square chambeies), the WCDMA inner chamber.In the utility model, resonance post (filter cavity) number is 5 to 14, the chamber number of resonance post number and filter is proportional, filter loss is little at least, inhibition is poor for the chamber number of filter, the filter cavity number at most filter loss big, suppresses, the number of deciding the resonance post according to the actual requirements is how much.

Embodiment one and embodiment two can insert CDMA Tx signal, DTV digital television signal, GSM Tx signal, DCS Tx signal, WCDMA Tx signal and TD-SCDMA signal simultaneously; They are respectively through the coupling of separately coupling window, filter out the signal beyond itself, yet close road signal output port output by same, form each frequency passband.Be capacitive coupling between the public port 16 of two embodiment and the public resonance post 17 wherein, port Impedance is mated easily, produces in batches easily, and debugging also can reduce difficulty.

The inner chamber of embodiment one and embodiment two is individual layer and distributes, convenient debugging, and especially when integral united test, the debugging advantage of individual layer is more obvious.

Fig. 3 closes the square cavity configuration figure on road frequently for seven of embodiment three; With reference to figure, be provided with respectively before and after the cavity and close road signal output port 1, GSM signal input port 2, DTV (or TETRA cluster) signal input port 4, CDMA signal input port 3, PHS signal input port 5, DCS signal input port 6, TD-SCDMA signal input port 7, WCDMA signal input port 8.Cavity is by GSM inner chamber 9A, DTV (or TETRA cluster) inner chamber 11A, CDMA inner chamber 10A, PHS inner chamber 12A, DCS inner chamber 13A, TD-SCDMA inner chamber 14A and WCDMA inner chamber 15A form, each inner chamber is provided with GSM resonance post 9 respectively, DTV (or TETRA TX cluster) resonance post 11, CDMA resonance post 10, PHS resonance post 12, DCS resonance post 13, TD-SCDMA resonance post 14 and WCDMA resonance post 15, resonance post in each inner chamber is sequentially arranged in corresponding signal input port respectively and closes between the signal output port of road, is provided with coupling window 20B between the adjacent resonance post.Have 62 resonance posts evenly to be provided with rectangular on cavity, wherein having in the GSM inner chamber and have 8 among 9, DTV (or TETRA cluster) inner chamber, having in the CDMA inner chamber has 7, has in the DCS inner chamber and have 8 among 12, TD-SCDMA inner chamber, have 10 in the WCDMA inner chamber among 6, PHS inner chamber.Equally, by being capacitively coupled on each public resonance post 17, each inner chamber is that individual layer distributes to the public port 16 on it again.Above-mentioned seven frequency combiners can insert CDMA TX signal, DTV Digital Television (or TETRA TX cluster) signal, GSM TX signal, PHS signal, DCS TX signal, WCDMA TX signal and TD-SCDMA signal simultaneously; Respectively through the coupling of separately coupling window, filter out the signal beyond itself, yet close road signal output port output by same, form each frequency passband,

The structure that the utility model provides is applicable to that two frequently close Lu Zhishi and close the road frequently, by its structure substantially with the utility model with similar, herein just not in detailed introduction.

Above-described only is better embodiment of the present utility model, and it describes comparatively concrete and detailed, can not therefore be interpreted as the restriction to the utility model claim.Should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model design; in the scope of technical solutions of the utility model; utilize the technology contents of above-mentioned announcement to make some changes or be modified to the equivalent embodiment of equivalent variations, these all belong to protection range of the present utility model.

Claims

1, a kind of multiplefrequency mixer, comprise a cavity, the front end of this cavity is provided with a mixer signal output port, it is characterized in that, the rear end of described cavity is provided with some signal input ports, inside cavity is arranged in order the resonance post according to the corresponding some inner chambers of how much being divided into of signal input port in each inner chamber, be provided with coupling window between the adjacent resonance post in each inner chamber; Wherein the inside cavity at mixer signal output port place communicates by a public port and each inner chamber.

2, multiplefrequency mixer according to claim 1 is characterized in that, the public port of described multiplefrequency mixer is by on the resonance post or public resonance post that are capacitively coupled to each inner chamber.

3, multiplefrequency mixer according to claim 1 and 2 is characterized in that, described each inner chamber individual layer is distributed in the cavity.

4, multiplefrequency mixer according to claim 3 is characterized in that, described each inner chamber is divided into cylindrical cavity or square chamber according to the demand of structure.

5, multiplefrequency mixer according to claim 1 and 2 is characterized in that, described resonance post is 5 to 14.

6, multiplefrequency mixer according to claim 4 is characterized in that, described resonance post is 5 to 14.