CN201868547U

CN201868547U - Double-system combiner

Info

Publication number: CN201868547U
Application number: CN2010205353454U
Authority: CN
Inventors: 郑进喜; 刘钧; 徐武举
Original assignee: NANJING GUANGSHUN NETWORK COMMUNICATION CO Ltd
Current assignee: NANJING GUANGSHUN NETWORK COMMUNICATION CO Ltd
Priority date: 2010-09-20
Filing date: 2010-09-20
Publication date: 2011-06-15
Anticipated expiration: 2020-09-20

Abstract

The utility model discloses a double-system combiner. A Global System for Mobile Communication (GSM) filter, a Data Communication System (DCS) filter, a Technical Data (TD) (A)+TD (B) filter, a TD (C) filter and a Wireless Local Area Network (WLAN) filter are arranged in the cavity, and are isolated from each other by an isolating wall. Five interfaces are arranged outside the cavity. The isolating walls of the five filters in the common connecting part are respectively provided with a through slot to realize coupling. The cavity resonator type is adopted, the basic principle of the filter is utilized, and the cavity filters which are respectively suitable for GSM, DCS, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) and WLAN are designed on one cavity. The coverage frequency is from 885MHz to 2500MHz, and the mutual isolation degree of the three ports reaches more than 80 dB. The double-system combiner has good response type, and adopts the common cavity type to optimize the layout of the whole cavity.

Description

A kind of dual system mixer

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 TD/WLAN dual system mixer.

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.

DCS (DigitalCellularSystemat1800MHz, the 1800MHz Digital Cellular System), China's mobile communication undergoes an unusual development rapidly, on the one hand because the restriction of 900MHz frequency resource, phenomenons such as frequency resource anxiety, channel deficiency have appearred in some areas, and traffic density is excessive; Utilize technology such as multiple frequency multiplex mode, multilayer covering, frequency hopping to come the increase capacity on the other hand, also have many limitations.Have only and carry out traffic by the DCS1800 net and share, could thoroughly address the above problem.

TD-SCDMA---Time Division-Synchronous Code Division Multiple Access (CDMA (Code Division Multiple Access) that the time-division is synchronous), hereinafter to be referred as TD, 3G (Third Generation) Moblie standard as China's proposition, from 1999 formally since ITU (International Telecommunication Association) submits to, gone through the time about ten years, finished expert group's assessment of standard, ITU approval and issue, fusion with 3GPP (third generation partnership projects) system, the a series of International standardization work such as introducing of new technology characteristic, propose by China thereby make the TD-SCDMA standard become first, based on Intellectual Property Right in China, the radio communication international standard of being accepted extensively in the world and approving.

Three frequency ranges that the TD-SCDMA of China Mobile obtains, TD (A) is that frequency range 1880-1900MHz, TD (B) are frequency range 2300MHz-2400MHz for frequency range 2010MHz-2025MHz, TD (C).

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.

The TD networking is along with three phases ground begins in national Large scale construction.The indoor covering of TD progressively becomes the center of gravity of follow-up TD networking.In the face of the simultaneous phenomenon of multiple network, 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 GSM, DCS, TD and WLAN co-space feedback system, the dual system mixer is indispensable device, but in the prior art still not to the report of this dual system mixer, this dual system mixer can be used as tri-frequency combiner and uses.

The utility model content

The utility model is exactly in order to solve the purpose of GSM, DCS, TD and WLAN four systems co-space feedback system problem, to provide a kind of with GSM, DCS, TD and the dual system mixer of wlan network traffic filter design on same cavity.

Dual system mixer described in the utility model, comprise the cover plate on cavity and the cavity, inside cavity is provided with five filters, is respectively GSM filter, DCS filter, TD (A)+TD (B) filter, TD (C) filter and WLAN filter, separates with partition wall between each filter; Five joints are GSM+DCS ports, the TD-SCDMA port, WLAN port and public port, and be separately positioned on the cavity outside, wherein GSM+DCS port and GSM filter input end, the DCS filter input end connects jointly, the TD-SCDMA port is connected with TD (C) filter input end jointly with TD (A)+TD (B) filter input end, the WLAN port is connected with the WLAN filter input end, public port and GSM filter output, the DCS filter output, TD (A)+TD (B) filter output, TD (C) filter output is connected jointly with the WLAN filter output, and the partition wall of five filters in common junction all has groove realization coupling.

The GSM filter is the comb filter structure, it comprises logical being pickled with grains or in wine, logical poor interior seven resonant rods of installing, cover plate is installed in outside logical being pickled with grains or in wine, distance between two adjacent resonant rods is determined that by coupling coefficient outermost two resonant rods are connected with GSM+DCS port and public port by coupled-wires respectively.

The DCS filter comprises 7 resonant cavitys that link to each other successively, i.e. first resonant cavity to the, seven resonant cavitys, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of first resonant cavity is connected with the GSM+DCS port by coupled-wires, resonant rod space in the resonant rod of the 7th resonant cavity and the common cavity A is of coupled connections, resonant rod in the common cavity A is connected with public port by coupled-wires again, and perceptual cross-couplings device is installed between the 5th resonant cavity and the 7th resonant cavity.

TD (A)+TD (B) filter comprises 8 resonant cavitys that link to each other successively, i.e. the 8th resonant cavity to the 15 resonant cavitys, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 8th resonant cavity is connected with the TD-SCDMA port by coupled-wires, resonant rod space in the resonant rod of the 15 resonant cavity and the common cavity A is of coupled connections, resonant rod in the common cavity A is connected with public port by coupled-wires again, between the 9th resonant cavity and the 11 resonant cavity and the 11 resonant cavity and the 13 resonant cavity capacitive cross-couplings device is installed.

TD (C) filter comprises 7 resonant cavitys that link to each other successively, i.e. the 16 resonant cavity to the 22 resonant cavitys, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 16 resonant cavity is connected with the TD-SCDMA port by coupled-wires, resonant rod space in the resonant rod of the 22 resonant cavity and the common cavity B is of coupled connections, common cavity B interior resonance bar is connected with public port by coupled-wires again, between the 16 resonant cavity and the 18 resonant cavity, slot, realize the capacitive cross-couplings with coupling bar; Perceptual cross-couplings device is installed between the 19 resonant cavity and the 21 resonant cavity.

The WLAN filter comprises 9 resonant cavitys that link to each other successively, i.e. the 23 resonant cavity to the 31 resonant cavitys, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 23 resonant cavity is connected with the WLAN port by coupled-wires, the resonant rod of the 31 resonant cavity and common cavity B interior resonance bar space are of coupled connections, and common cavity B interior resonance bar is connected with public port by coupled-wires again; The 23 resonant cavity links to each other with the absorbing cavity coupling, and a resonant rod has been installed in the absorbing cavity center; Capacitive cross-couplings device is installed between the 24 resonant cavity and the 27 resonant cavity; Between the 28 resonant cavity and the 30 resonant cavity, slot, realize the capacitive cross-couplings with coupling bar.

Above-mentioned perceptual cross-couplings device is 1 installation tuning cross-line on the cover board, and capacitive cross-couplings device is 1 and is fixed on the recessed tuning bar that flies in poor of cavity.

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 GSM, DCS, TD and wlan network signal is on same cavity.And adopt the form of common cavity, optimized the layout of whole cavity, reduced the time of assembling and debugging, added absorbing cavity again simultaneously, improved the inhibition degree.The material aspect is to be processed into cavity and in the technical finesse of inside cavity surface utilization electric conductive oxidation, not need electroplate with aluminum, under the prerequisite of influence technique index not, provides cost savings greatly.Adopt above technology to make it in adjacent passage, 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.

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 wherein Fig. 2 a is a left view, and Fig. 2 b is the right view section, and Fig. 2 c 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), cover plate 3 (1), resonant rod (39), joint (4), tuning bar 12 (2), tuning cross-line 13 (1), tuning screw 14 (74), mounting cover plate bolt (135), the installation resonant rod screw (39) of flying, inside cavity comprises five filters, is respectively GSM filter, DCS filter, TD (A)+TD (B) filter, TD (C) filter and WLAN filter.

It is respectively GSM+DCS port 4, TD-SCDMA port 5, WLAN port 6 and public port 7 that whole mixer has four joints.GSM+DCS port 4 is divided into two-way in cavity, the one tunnel passes through coupled-wires 9 connections and inserts public port 7 through seven resonant rods successively in big logical poor 11.GSM+DCS port 4 another road first resonant cavity, 21 to the 7th resonant cavitys 27 connect and access public port 7 by coupled-wires 9 through common cavity A15 again.TD-SCDMA port 5 also is divided into two-way through the 8th resonant cavity the 31 to the 15 resonant cavity 38 in cavity, connect and access public port 7 by coupled-wires 9 through common cavity A15 again.TD-SCDMA port 5 another Lu Jingdi 16 resonant cavitys the 41 to the 22 resonant cavitys 47 connect and access public port 7 by coupled-wires 9 through common cavity B16 again.WLAN port 6 is through younger brother's 23 resonant cavitys the 51 to the 31 resonant cavity 59, be connected in public port 7 through common cavity B16 by coupled-wires 9 again, in network optimization compartment system, use this mixer, can make GSM, DCS, TD and wlan system share the same antenna, the signal that comes out from the four systems base station enters GSM+DCS port 4, TD-SCDMA port 5, the WLAN port 6 of mixer, and the filter by separately closes the road to public port 7 again.

Specifically, inside cavity is provided with five filters, is respectively GSM filter, DCS filter, TD (A)+TD (B) filter, TD (C) filter and WLAN filter.

The GSM filter designs according to comb filter, comprise one logical poor 11, the cover plate 2 of a special use is equipped with on logical seven resonant rods and logical poor top of installing in poor.Distance between two adjacent resonant rods is determined that by coupling coefficient outermost two resonant rods are connected with GSM+DCS port 4 and public port 7 by coupled-wires 9 respectively, and coupled-wires 9 is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Because last resonant rod and public port 7 distances are long, coupled-wires snaps in cavity with two medium blocks 8, is used for reaching stable state.

The DCS filter comprises 7 resonant cavitys that link to each other successively, i.e. first resonant cavity, 21 to the 7th resonant cavitys 27, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of first resonant cavity 21 is connected with GSM+DCS port 4 by coupled-wires 9, resonant rod space in the resonant rod of the 7th resonant cavity 27 and the common cavity A15 is of coupled connections, and common cavity A15 interior resonance bar is connected with public port 7 by coupled-wires 9 again.And between the 5th resonant cavity 25 and the 7th resonant cavity 27, perceptual cross-couplings device is installed.Coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Perception cross-couplings device is 1 installation tuning cross-line 13 on the cover board.

TD (A)+TD (B) filter comprises 8 resonant cavitys that link to each other successively, i.e. the 8th resonant cavity the 31 to the 15 resonant cavity 38, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 8th resonant cavity 31 is connected with the TD-SCDMA port by coupled-wires 9, resonant rod space in the resonant rod of the 15 resonant cavity 38 and the common cavity A15 is of coupled connections, and common cavity A15 interior resonance bar is connected with public port 7 by coupled-wires 9 again.And between the 9th resonant cavity 9 and the 11 resonant cavity 34 and the 11 resonant cavity 34 and the 13 resonant cavity, capacitive cross-couplings device is installed.Coupled-wires 9 is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Capacitive cross-couplings device be 1 be fixed on cavity recessed poor in the tuning bar 12 that flies.

TD (C) filter comprises 7 resonant cavitys that link to each other successively, i.e. the 16 resonant cavity the 41 to the 22 resonant cavity 47, a resonant rod 30 has been installed in the center of each resonant cavity, the resonant rod of the 16 resonant cavity 41 is connected with the TD-SCDMA port by coupled-wires, resonant rod space in the resonant rod of the 22 resonant cavity 47 and the common cavity B16 is of coupled connections, and common cavity B16 interior resonance bar is connected with public port by coupled-wires 9 again.And fluting is realized the capacitive cross-couplings with coupling bar between the 16 resonant cavity 41 and the 18 resonant cavity.Between the 19 resonant cavity 44 and the 21 resonant cavity 46, perceptual cross-couplings device is installed.Coupled-wires 9 is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Perception cross-couplings device is 1 installation tuning cross-line 13 on the cover board.

The WLAN filter comprises 9 resonant cavitys that link to each other successively, i.e. the 23 resonant cavity the 51 to the 31 resonant cavity 59, a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 23 resonant cavity 51 is connected with WLAN port 6 by coupled-wires 9, the resonant rod of the 31 resonant cavity 59 and common cavity B16 interior resonance bar space are of coupled connections, and common cavity B16 interior resonance bar is connected with public port 7 by coupled-wires again.And the 23 resonant cavity 51 links to each other with 17 couplings of absorbing cavity space, and one resonant rod has been installed in the absorbing cavity center.Between the 24 resonant cavity 52 and the 27 resonant cavity 55, capacitive cross-couplings device is installed.Between the 28 resonant cavity 56 and the 30 resonant cavity 58, fluting is realized the capacitive cross-couplings with coupling bar.Coupled-wires 9 is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Capacitive cross-couplings device be 1 be fixed on cavity recessed poor in the tuning bar 13 that flies.

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

Claims

1. dual system mixer, it is characterized in that: comprise the cover plate (2,3) on cavity (1) and the cavity (1), cavity (1) inside is provided with five filters, be respectively GSM filter, DCS filter, TD (A)+TD (B) filter, TD (C) filter and WLAN filter, separate with partition wall between each filter; Five joints are GSM+DCS port (4), TD-SCDMA port (5), WLAN port (6) and public port (7), and be separately positioned on cavity (1) outside, wherein GSM+DCS port (4) and GSM filter input end, the DCS filter input end connects jointly, TD-SCDMA port (5) is connected with TD (C) filter input end jointly with TD (A)+TD (B) filter input end, WLAN port (6) is connected with the WLAN filter input end, public port (7) and GSM filter output, the DCS filter output, TD (A)+TD (B) filter output, TD (C) filter output is connected jointly with the WLAN filter output, and the partition wall of five filters in common junction all has groove realization coupling.

2. dual system mixer according to claim 1, it is characterized in that: the GSM filter is the comb filter structure, it comprises one logical poor (11), in logical poor (11) seven resonant rods are installed, cover plate (2) is installed in outside logical poor (11), distance between two adjacent resonant rods is determined that by coupling coefficient outermost two resonant rods are connected with GSM+DCS port (4) and public port (7) by coupled-wires (9) respectively.

3. dual system mixer according to claim 1, it is characterized in that: the DCS filter comprises 7 resonant cavitys that link to each other successively, promptly first resonant cavity (21) is to the 7th resonant cavity (27), a resonant rod has been installed in the center of each resonant cavity, the resonant rod of first resonant cavity (21) is connected with GSM+DCS port (4) by coupled-wires (9), resonant rod space in the resonant rod of the 7th resonant cavity (27) and the common cavity A (15) is of coupled connections, resonant rod in the common cavity A (15) is connected with public port (7) by coupled-wires (9) again, between the 5th resonant cavity (25) and the 7th resonant cavity (27) perceptual cross-couplings device is installed.

4. dual system mixer according to claim 1, it is characterized in that: TD (A)+TD (B) filter comprises 8 resonant cavitys that link to each other successively, promptly the 8th resonant cavity (31) is to the 15 resonant cavity (38), a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 8th resonant cavity (31) is connected with the TD-SCDMA port by coupled-wires (9), resonant rod space in the resonant rod of the 15 resonant cavity (38) and the common cavity A (15) is of coupled connections, resonant rod in the common cavity A (15) is connected with public port (7) by coupled-wires (9) again, between the 9th resonant cavity (9) and the 11 resonant cavity (34) and the 11 resonant cavity (34) and the ten three (36) resonant cavity capacitive cross-couplings device (12) is installed.

5. dual system mixer according to claim 1, it is characterized in that: TD (C) filter comprises 7 resonant cavitys that link to each other successively, promptly the 16 resonant cavity (41) is to the 22 resonant cavity (47), a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 16 resonant cavity (41) is connected with the TD-SCDMA port by coupled-wires, resonant rod space in the resonant rod of the 22 resonant cavity (47) and the common cavity B (16) is of coupled connections, common cavity B (16) interior resonance bar is connected with public port by coupled-wires (9) again, fluting between the 16 resonant cavity (41) and the 18 resonant cavity (43) is realized the capacitive cross-couplings with coupling bar; Between the 19 resonant cavity (44) and the 21 resonant cavity (46), perceptual cross-couplings device is installed.

6. dual system mixer according to claim 1, it is characterized in that: the WLAN filter comprises 9 resonant cavitys that link to each other successively, promptly the 23 resonant cavity (51) is to the 31 resonant cavity (59), a resonant rod has been installed in the center of each resonant cavity, the resonant rod of the 23 resonant cavity (51) is connected with WLAN port (6) by coupled-wires (9), the resonant rod of the 31 resonant cavity (59) and common cavity B (16) interior resonance bar space are of coupled connections, and common cavity B (16) interior resonance bar is connected with public port (7) by coupled-wires again; The 23 resonant cavity (51) links to each other with absorbing cavity (17) coupling, and a resonant rod has been installed in the absorbing cavity center; Between the 24 resonant cavity (52) and the 27 resonant cavity (55), capacitive cross-couplings device is installed; Fluting between the 28 resonant cavity (56) and the 30 resonant cavity (58) is realized the capacitive cross-couplings with coupling bar.

7. according to claim 3 or 5 described dual system mixers, it is characterized in that: perceptual cross-couplings device is 1 installation tuning cross-line (13) on the cover board.

8. according to claim 4 or 6 described dual system mixers, it is characterized in that: capacitive cross-couplings device is 1 and is fixed on the recessed tuning bar (12) that flies in poor of cavity.