CN201345747Y - High-reliability miniature integrated relay station - Google Patents

Abstract

High-reliability miniature integrated relay station comprises a case, a bidirectional RF signal amplifier circuit board and a double-duplexer, wherein the double-duplexer and the case are integrated; two sidewalls of the double-duplexer are integrally superposed with the two sidewalls of the case; the front and rear cover plates of the double-duplexer are integrally superposed with the upper and lower cover plates of the case; the bidirectional RF signal amplifier circuit board is arranged on the lower soleplate of the double-duplexer; the input and output ends of the bidirectional RF signal amplifier circuit board are directly welded to the outgoing lines of the corresponding input and output ends of the double-duplexer; the uplink and downlink circuits on the bidirectional RF signal amplifier circuit board are respectively connected with a gain attenuation manual dial therein, and the case is provided with a dial window corresponding to the dial. The double-duplexer and the case are integrated, which is convenient for the primary extrusion forming of the high-reliability miniature integrated relay station, which has compact structure, small volume, low cost, high reliability, good radiating effect, simplified assembling and debugging and high production efficiency.

Description

Highly reliable integrated small relay station

Technical field

The utility model relates to a kind of trunking of mobile communication radio frequency signal transmission, particularly a kind of highly reliable integrated small relay station.

Background technology

Along with the fast development of mobile communication, characteristics such as service face is big, the area is wide, user's dispersion have appearred.Outskirts of a town, county town, small towns, rural area and highway etc. if all cover with the base station, will inevitably cause problems such as investment is big, channel utilization is low.In addition, because the influence of some nature and human factor (as high mountain, building, tunnel and underground installation etc.) also brings very big difficulty to mobile communication.In order to address the above problem, microwave relay stands in communication systems such as GSM, CDMA, WCDMA and is used widely, because it can extend and covering problem by effective address signal, improves communication quality; Can carry out linear amplification to the received signal, be forwarded to the coverage through retransmitting antenna again, the while also receives, amplifies, retransmits the signal of coverage travelling carriage to the base station, thus functions such as the relaying of realization signal, repeating transmission.And can utilize the directionality of retransmitting antenna, the signal that satisfies the specific region covers.The characteristics of applied microwave relay station are that instant effect, cycle are short, easy for installation, are not easy to cause the wasting of resources in communication network.

At present, it is 0.5 watt～1 watt mobile communication satellite station that a kind of power output is arranged, its basic composition comprises cabinet, two duplexer, bi-directional RF signal amplification circuit plate and housings thereof that are made of the cavity type filter, what have also comprises power supply, supervisory circuit plate, modulator-demodulator etc., each parts relatively independently is installed in respectively on the cabinet, is connected by cable between duplexer and the magnification circuit plate.This satellite station exists the following shortcoming: 1, multi-part separates installation, and the magnification circuit plate outside has housing and cabinet overpacking, and radiating effect is poor, poor reliability, and machine volume is huge, heavy; 2, magnification circuit plate housing, duplexer, cabinet need design processing and manufacturing respectively, complex structure, and assembly process is many, the cost height, price is higher, does not satisfy the requirement of market economy to the microwave relay station high performance-price ratio; 3, must increase the radio-frequency performance unreliable factor by the stube cable transmitting radio frequency signal between active, the passive component; 4, each assembly of elements radio-frequency (RF) index mixes up the cabinet of packing into, also needs to carry out integral united test again, and the integral united test workload is big; 5, supervisory circuit plate cost height easily breaks down, and reduces whole aircraft reliability.

The applicant discloses a kind of with two the incorporated multiplexer in pairs of duplexer technical schemes that are made of the cavity type filter in utility model patent " base station is multiplexer in pairs " (patent No. is 200720044708.2), this dual duplex utensil has rectangular body, the parallel rectangular cavity that is distributed with in the main body, seal cover board is equipped with in the main body front and back end, the main body upper plate is equipped with the resonant cavity adjustment screw, the resonant cavity inner wire is housed in the main body lower shoe, and has the transmission duplex input/output terminal.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and a kind of highly reliable integrated small relay station of novel structure is provided.

The technical scheme that its technical problem that solves the utility model adopts is as follows: a kind of highly reliable integrated small relay station, its composition comprises cabinet, two duplexers that constitute by the cavity type filter, bi-directional RF signal amplification circuit plate, it is characterized in that described two duplexers synthesize a multiplexer in pairs that main body is rectangular, this is multiplexer and the integrated overall structure of described cabinet in pairs, the two side of multiplexer overlaps with the cabinet two side and becomes one in pairs, in pairs the front and back end seal cover board of multiplexer and cabinet up and down cover plate overlap and be one, described bi-directional RF signal amplification circuit plate is installed in pairs on the multiplexer lower shoe, the input/output terminal of bi-directional RF signal amplification circuit plate directly welds with the corresponding input/output terminal lead-out wire of multiplexer in pairs, on the bi-directional RF signal amplification circuit plate, connect a manual dial of gain reduction in the downstream circuitry respectively, on the cabinet to having the dial window in the dial place.

The beneficial effects of the utility model are as follows: the multiplexer in pairs and the cabinet integral structure that are made of the cavity type filter, be convenient to utilize extrusion forming technology with an extrusion modling of aluminium, be cut into needed size, compact conformation, save raw material, machine volume reduces significantly, and is easy to process, the production efficiency height is fit to produce in enormous quantities; Bi-directional RF signal amplification circuit plate is installed with multiplexer in pairs and is connected as one, cancellation cable and circuit board housing, realize that radio frequency stereo circuit and radio frequency planar circuit are integrated, directly serve as the radiator of bi-directional RF signal amplification circuit plate, good heat dissipation effect with the incorporate multiplexer in pairs of cabinet; Adopt manual dial to regulate gain reduction, cost is low; Assembling and setting is simplified, and complete machine radio-frequency performance reliability improves greatly, is suitable for using in GSM, CDMA, WCDMA communication system.

Description of drawings

Fig. 1 opens the overall structure vertical view of chassis cover plate for the utility model.

Fig. 2 is the corresponding cabinet upward view of the utility model and Fig. 1.

Embodiment

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.But the utility model is not limited to given embodiment.

As depicted in figs. 1 and 2, the composition of the highly reliable integrated small relay station of the utility model comprises cabinet 1, bi-directional RF signal amplification circuit plate 2, two duplexers that are made of the cavity type filter synthesize a multiplexer in pairs 3 that main body is rectangular, multiplexer 3 is the integral structure of an extrusion modling with cabinet 1 in pairs, the two side 31 of multiplexer 3 in pairs, 32 with cabinet both sides 11,12 coincidences become one, the forward end seal cover plate (not drawing among the figure) of multiplexer 3 in pairs, back-end sealing cover plate 33 respectively with the upper cover plate (not drawing among the figure) of cabinet 1, lower cover 13 overlaps and is one, bi-directional RF signal amplification circuit plate 2 is installed in pairs on the multiplexer lower shoe 34, the input/output terminal 21 of bi-directional RF signal amplification circuit plate 2,22,23,24 with the corresponding input/output terminal lead-out wire X1 of multiplexer in pairs, X2, X3, X4 directly welds, on the bi-directional RF signal amplification circuit plate 2, connect a manual dial B1 of gain reduction in the downstream circuitry respectively, B2, on the lower cover 13 of cabinet 1 to should dial B1, the B2 place has dial window 131,132.35 are multiplexer resonant cavity inner wire in pairs among Fig. 1, and 36 is the resonant cavity adjustment screw.133 is the external power adapter end among Fig. 2, and 134,135 are antenna alms giver end, repeating transmission end.

Better in order to ensure reliability and radiating effect, as shown in Figure 1 and Figure 2, the further feature of the utility model is: have the radiating fin 111,121,141 with the cabinet integral structure on the two side 11,12 of cabinet 1 and cabinet panel 14.

Claims (2)

1, highly reliable integrated small relay station, its composition comprises cabinet, bi-directional RF signal amplification circuit plate, it is characterized in that having a rectangular multiplexer in pairs of main body that constitutes by the cavity type filter, this is multiplexer and the integrated overall structure of described cabinet in pairs, the two side of multiplexer overlaps with the cabinet two side and becomes one in pairs, in pairs the front and back end seal cover board of multiplexer and cabinet up and down cover plate overlap and be one, described bi-directional RF signal amplification circuit plate is installed in pairs on the multiplexer lower shoe, the input/output terminal of bi-directional RF signal amplification circuit plate directly welds with the corresponding input/output terminal lead-out wire of multiplexer in pairs, on the bi-directional RF signal amplification circuit plate, connect a manual dial of gain reduction in the downstream circuitry respectively, on the cabinet to having the dial window in the dial place.

2, highly reliable integrated small relay station according to claim 1 is characterized in that having the radiating fin with the cabinet integral structure on the two side of cabinet and cabinet panel.

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