CN201430204Y

CN201430204Y - CDMA/GSM/3G/WLAN quadruple-frequency mixer

Info

Publication number: CN201430204Y
Application number: CN2009200426916U
Authority: CN
Inventors: 郑进喜; 郑姗姗; 廖忠权
Original assignee: NANJING GUANGSHUN NETWORK COMMUNICATION CO Ltd
Current assignee: NANJING GUANGSHUN NETWORK COMMUNICATION CO Ltd
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-03-24
Anticipated expiration: 2019-06-25

Abstract

The utility model discloses a CDMA/GSM/3G/WLAN quadruple-frequency mixer, which belongs to the technical field of the electronic information and mobile communication, adopts a resonant-cavity form andutilizes the basic principle of a filter to integrate cavity filters which are respectively applicable to the network signal of CDMA, GSM, 3G and WLAN onto the same cavity body. The coverage frequency of the quadruple-frequency mixer is wide and from 800 MHZ to 2500 MHz, and the isolation degree of the four network signals reaches up to 80 dB, so a good response form is provided; moreover, the technical indexes have high external inhibition, the insertion loss is small, the size is small, the installation and the debugging are convenient, the performance of the entire system is improved, thereliability of the network is strengthened, and the multi-system coverage is well simplified, so the quadruple-frequency mixer is more applicable to the engineering construction and application. The CDMA/GSM/3G/WLAN quadruple-frequency mixer is of a communication network device with small size, light weight, low cost and strong practicability.

Description

A kind of CDMA/GSM/3G/WLAN four frequency combiners

Technical field

The utility model is the network optimization product that belongs in electronic information and the mobile communication technology field, specifically is a kind of CDMA/GSM/3G/WLAN four frequency combiners.

Background technology

GSM full name is: Global System for Mobile Communications, Chinese implication is a global system for mobile communications, is commonly called as " Global Link ", is a kind of mobile communication technology standard that originates from Europe, is second generation mobile communication technology.

CDMA full name is: Code-Division Multiple Access, Chinese implication is a code division multiple access, is a kind of advanced person's of occurring in the digital mobile communication process in recent years radio spread spectrum communication technology.

3G full name is: 3rd Generation, Chinese implication is for just being meant third generation digital communication.With the main distinction in preceding two generations are liftings on the speed of transmission voice and data, it can realize seamless roam in the world better, and handle multiple media formats such as image, music, video flowing, multiple information services such as comprising web page browsing, videoconference, ecommerce is provided, also will considers favorable compatibility simultaneously with existing second-generation system.For this service is provided, wireless network must can be supported different data transmission baudss, that is to say the transmission speed that can support 2Mbps (megabit/per second), 384kbps (kilobit/per second) at least and 144kbps in the environment of indoor, outdoor and driving respectively.

WLAN is WLAN (wireless local area network) (Wireless Local Area Network), be meant the LAN (Local Area Network) of making transmission medium with wireless channel, be the important supplement and the extension of wired networking mode, and become vital part in the computer network gradually, needing to be widely used in removable data to handle the field that maybe can't carry out the physical transmission medium wiring.Its frequency is 2400-2500MHz.

In today of mobile communication high speed development, the simultaneous phenomenon of multiple network is arranged always, and existing mass communication network optimization project is when doing the signal covering, reduce the space in order to save cost, the unlike signal system transmissions tends to use mixer to make multiple signals merge into one road signal.Therefore in CDMA, GSM, 3G and WLAN co-space feedback system, four frequency combiners are indispensable devices.

The utility model content

Because the mobile communication high speed development has multiple network to exist simultaneously, existing a large amount of communication network optimize project is when doing the signal covering, need to reduce the space and save cost, will use a kind of mixer that multiple signals are merged into one road signal to reach the unlike signal system transmissions.The utility model is exactly in order to solve the purpose of CDMA, GSM, 3G and WLAN four systems co-space feedback system problem, providing a kind of with CDMA, GSM, 3G and four frequency combiners of wlan network traffic filter design on same cavity, is that the multiple network signal system is transmitted indispensable device.

CDMA described in the utility model, GSM, 3G and WLAN four frequency combiners, comprise the cover plate on cavity and the cavity, inside cavity is provided with four filters, be respectively the CDMA filter, the GSM filter, 3G filter and WLAN filter, five joint CDMA ports, the GSM port, the 3G port, WLAN port and public port are separately positioned on the cavity outside, CDMA port wherein, the GSM port, the 3G port, the WLAN port respectively with the CDMA filter input end, the GSM filter input end, the 3G filter input end is connected with the WLAN filter input end, public port and CDMA filter output, the GSM filter output, the 3G filter output is connected jointly with the WLAN filter output, and the partition wall of four filters in this junction has groove realization coupling.

The CDMA filter comprises 7 resonant cavitys that link to each other successively, i.e. first to the 7th resonant cavity, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with CDMA port and public port by coupled-wires respectively with last resonant rod, and between first resonant cavity and the 3rd resonant cavity, perceptual cross-couplings device is installed between the 4th resonant cavity and the 6th resonant cavity.Coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Perception cross-couplings device is 2 installations tuning cross-lines on the cover board.

The GSM filter comprises 7 resonant cavitys that link to each other successively, i.e. the 8th to the 14 resonant cavity, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with GSM port and public port by coupled-wires respectively with last resonant rod, and between the 8th resonant cavity and the tenth resonant cavity, capacitive cross-couplings device is installed between the 11 resonant cavity and the 13 resonant cavity.Coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Capacitive cross-couplings device be 2 be fixed on cavity recessed poor in the tuning bar that flies.

The 3G filter comprises 8 resonant cavitys that link to each other successively, i.e. the 15 to the 23 resonant cavity, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with 3G port and public port by coupled-wires respectively with last resonant rod, and coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.

The WLAN filter comprises 6 resonant cavitys that link to each other successively, i.e. the 24 to the 29 resonant cavity, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with WLAN port and public port by coupled-wires respectively with last resonant rod, and coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.

The utility model adopts the resonant cavity form, and utilization filter basic principle will be applicable to that respectively the cavity body filter design of CDMA, GSM, 3G and wlan network signal is on same cavity.And be processed into cavity and, do not need with aluminum, under the prerequisite of influence technique index not, provide cost savings greatly electroplate in the technical finesse of inside cavity surface utilization electric conductive oxidation.Adopt above technology to make it in very narrow frequency range, accomplish very high isolation, has fabulous response forms, and it is high that the technical indicator band suppresses outward, Insertion Loss is little, volume is little, be convenient to Installation and Debugging, improve the performance of whole system, strengthen the reliability of network, simplified the multisystem covering preferably, and be more suitable for the engineering construction application.It is little to make it become volume, in light weight, the communication network optimizing equipment that cost is low, practical.

According to optimizing Principles of Network, technical indicator of the present utility model is:

Description of drawings

Fig. 1 is the planar structure schematic diagram of the utility model cavity;

Fig. 2 is the structural representation of this practical cavity side, and a is a left view, and b is a right view.

Embodiment

The utility model adopts lumped parameter and distributed constant principle, according to technical indicator, in conjunction with Chebyshev's type Design of Bandpass principle.See Fig. 1-2.The utility model comprises cavity 1 (1), cover plate 2 (1), resonant rod 20 (14), resonant rod 30 (8), resonant rod 40 (6), tuning screw 28 (52), mounting cover plate bolt (95), resonant rod screw (28) is installed, joint (5), mounting bracket (2), tuning bar (2), the tuning cross-line (2) of flying, inside cavity comprises that four filters are respectively CDMA filter, GSM filter, 3G filter and WLAN filter.

It is respectively CDMA port 3, GSM port 4,3G port 5, WLAN port 6 and public port 7 that whole mixer has five joints; CDMA port 3 is connected in public port 7 through first resonant cavity, 11 to the 7th resonant cavitys 17 by coupled-wires 9; GSM port 4 connects and access public port 7 by coupled-wires 9 through the 8th resonant cavity the 21 to the 12 resonant cavity 27; 3G port 5 is connected in public port 7 through 15 resonant cavitys the 31 to the 23 resonant cavity 38 by coupled-wires 9.WLAN port 6 is connected in public port 7 through 24 resonant cavitys the 41 to the 29 resonant cavity 46 by coupled-wires 9, in network optimization compartment system, use this mixer, can make CDMA, GSM, 3G and wlan system share the same antenna, the signal that comes out respectively from the four systems base station enters CDMA port 3, GSM port 4,3G port 5, the WLAN port 6 of mixer separately, and the filter by separately closes the road to public port 7 again.

Inside cavity is provided with four filters, is respectively CDMA filter, GSM filter, 3G filter and WLAN filter.

The CDMA filter comprises 7 resonant cavitys that link to each other successively, i.e. first resonant cavity, 11 to the 7th resonant cavitys 17, a resonant rod 20 has been installed in the center of each resonant cavity, first resonant rod is connected with CDMA port 3 and public port 7 by coupled-wires 9 respectively with last resonant rod, and between first resonant cavity 11 and the 3rd resonant cavity 13, between the 4th resonant cavity 14 and the 6th resonant cavity 16 perceptual cross-couplings device 18 is installed.The tuning cross-line that perception cross-couplings device 18 is mounted on the cover plate.

The GSM filter comprises 7 resonant cavitys that link to each other successively, i.e. the 8th resonant cavity the 21 to the 14 resonant cavity 27, a resonant rod 20 has been installed in the center of each resonant cavity, first resonant rod is connected with GSM port 6 and public port 7 by coupled-wires 9 respectively with last resonant rod, and between the 8th resonant cavity 21 and the tenth resonant cavity 23, between the 11 resonant cavity 24 and the 13 resonant cavity 26 capacitive cross-couplings device is installed.Capacitive cross-couplings device 19 be fixed on cavity recessed poor in the tuning bar that flies.

The 3G filter comprises 8 resonant cavitys that link to each other successively, i.e. the 15 resonant cavity the 31 to the 23 resonant cavity 38, a resonant rod 30 has been installed in the center of each resonant cavity, and first resonant rod is connected with 3G port 5 and public port 7 by coupled-wires 9 respectively with last resonant rod.

The WLAN filter comprises 6 resonant cavitys that link to each other successively, i.e. the 24 resonant cavity the 41 to the 29 resonant cavity 46, a resonant rod 40 has been installed in the center of each resonant cavity, and first resonant rod is connected with WLAN port 6 and public port 7 by coupled-wires 9 respectively with last resonant rod.

Claims

1, a kind of CDMA/GSM/3G/WLAN four frequency combiners, it is characterized in that: comprise the cover plate (2) on cavity (1) and the cavity (1), cavity (1) inside is provided with four filters, be respectively the CDMA filter, the GSM filter, 3G filter and WLAN filter, five joints are CDMA port (3), GSM port (4), 3G port (5), WLAN port (6) and public port (7), be separately positioned on cavity (1) outside, CDMA port (3) wherein, GSM port (4), 3G port (5), WLAN port (6) respectively with the CDMA filter input end, the GSM filter input end, the 3G filter input end is connected with the WLAN filter input end, public port (7) and CDMA filter output, the GSM filter output, the 3G filter output is connected jointly with the WLAN filter output, and the partition wall of four filters in this junction has groove realization coupling.

2, CDMA/GSM/3G/WLAN four frequency combiners according to claim 1, it is characterized in that: the CDMA filter comprises 7 resonant cavitys that link to each other successively, promptly first resonant cavity (11) is to the 7th resonant cavity (17), a resonant rod (20) has been installed in the center of each resonant cavity, first resonant rod is connected with CDMA port (3) and public port (7) by coupled-wires (9) respectively with last resonant rod, and between first resonant cavity (11) and the 3rd resonant cavity (13), between the 4th resonant cavity (14) and the 6th resonant cavity (16) perceptual cross-couplings device (18) is installed.

3, CDMA/GSM/3G/WLAN four frequency combiners according to claim 2, it is characterized in that: perceptual cross-couplings device (18) is mounted in the tuning cross-line on the cover plate.

4, CDMA/GSM/3G/WLAN four frequency combiners according to claim 1, it is characterized in that: the GSM filter comprises 7 resonant cavitys that link to each other successively, promptly the 8th resonant cavity (21) is to the 14 resonant cavity (27), a resonant rod (20) has been installed in the center of each resonant cavity, first resonant rod is connected with GSM port (6) and public port (7) by coupled-wires (9) respectively with last resonant rod, and between the 8th resonant cavity (21) and the tenth resonant cavity (23), between the 11 resonant cavity (24) and the 13 resonant cavity (26) capacitive cross-couplings device (19) is installed.

5, CDMA/GSM/3G/WLAN four frequency combiners according to claim 4 is characterized in that: capacitive cross-couplings device (19) be fixed on cavity recessed poor in the tuning bar that flies.

6, CDMA/GSM/3G/WLAN four frequency combiners according to claim 1, it is characterized in that: the 3G filter comprises 8 resonant cavitys that link to each other successively, promptly the 15 resonant cavity (31) is to the 23 resonant cavity (38), a resonant rod (30) has been installed in the center of each resonant cavity, and first resonant rod is connected with 3G port (5) and public port (7) by coupled-wires (9) respectively with last resonant rod.

7, CDMA/GSM/3G/WLAN four frequency combiners according to claim 1, it is characterized in that: the WLAN filter comprises 6 resonant cavitys that link to each other successively, promptly the 24 resonant cavity (41) is to the 29 resonant cavity (46), a resonant rod (40) has been installed in the center of each resonant cavity, and first resonant rod is connected with WLAN port (6) and public port (7) by coupled-wires (9) respectively with last resonant rod.

8, according to any one described CDMA/GSM/3G/WLAN four frequency combiner of claim 1 to 7, it is characterized in that: coupled-wires is that silver-jacketed wire is separately fixed on resonant rod and the joint with scolding tin.