A kind of LTE radio signal filter module
Technical field
This utility model relates to radio frequency testing art field, particularly relates to a kind of LTE radio traffic filter mould
Block.
Background technology
LTE, based on old GSM/EDGE and UMTS/HSPA network technology, is the upgrading of GSM/UMTS standard, LTE
Current goal be made by new technique and modulator approach and promote data transmission capabilities and the data transmission bauds of wireless network, as new
Digital Signal Processing (DSP) technology.
Existing 2G, 3G network can not meet the full growing needs of people.Wireless communication system presents shifting
Dynamicization, broadband and IPization development trend, all kinds of antennas and transceiver input port are not low-loss, selectivity
Wave filter all still uses irradiation structure and the multi-cavity resonance structure of solid type, and bulky, structure is complicated, processing difficulties,
Become the major obstacle of wireless communications products miniaturization: its main cause is radiation transformed space and the frequency resonance sky of its institute's foundation
Between be electrolyte constant close to 1, the free air that loss is minimum.
Therefore, design that a kind of overall dimensions is little and few LTE radio signal filter module is lost is that industry urgently solves
Problem certainly.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the utility model proposes a kind of LTE radio traffic filter
Module, it is little and few function is lost that this LTE radio signal filter module has overall dimensions.
For achieving the above object, this utility model by the following technical solutions: a kind of LTE radio signal filter module,
Including: substrate, described substrate is provided with the cavity that at least two interconnects;A plurality of rib it is provided with between described cavity;LET believes
Number resonant frequency controls bar, and described LET signal resonant frequency controls bar and vertically plants each chamber central portion on substrate of being fixed on
Position;Signal input port adapter, described signal input port adapter is connected to LET by signal input and output transmission line to be believed
Number resonant frequency controls bar;Signal output port adapter, described signal output port adapter is transmitted by signal input and output
Line is connected to LET signal resonant frequency and controls bar;At least one proximally and distally suppresses to control element, described proximally and distally presses down
System controls element and is fixedly installed on rib;Cover plate, described cover plate is worked in coordination fixing with described substrate.
In an embodiment of LTE radio signal filter module described in this utility model, described housing surface is coated with
One layer of silver layer.
In an embodiment of LTE radio signal filter module described in this utility model, described cavity and substrate limit
Between edge, region is provided with a groove.
In an embodiment of LTE radio signal filter module described in this utility model, described groove be provided with to
A few threaded securing bores.
In an embodiment of LTE radio signal filter module described in this utility model, described cover plate is provided with many
Individual with groove on the threaded securing bores worked in coordination.
Compared with prior art, this utility model has the advantage that
By using OFDMA (Orthodoxy Frequency Division Multiplex) technology, energy contrary frequency Selective intensity and arrowband interference,
Thus reduce interfering between each subcarrier, improve the availability of frequency spectrum;LTE radio signal filter module is used to need not double
Multiplexer, can simplify radio circuit, system equipment and mobile phone cost relatively low;Use software radio advanced technology, it is easier to realize
Multi-standard base station and multimode terminal, system is easier to upgrading, is more suitable for the big city hot zones at 4G network and first builds
If;Two passage LTE radio signal filter module are used to be more easy to support service in wireless communication network and realize new-generation digital collection
Group, it is possible to effectively cancel out interference, enable a system to work under conditions of full code channel, therefore, spectrum efficiency is high, it is possible to full
Foot wireless network extension demand;This LTE radio signal filter module has two ports and is directly connected to internal letter by feeder line
Number receiving equipment, the other end uses feeder line to be connected to the sending and receiving antenna at outdoor base station launching tower top;These novel two passage LTE
Radio-frequency signal filters module complete machine mainly has that loss is little, overall dimensions are little, be designed beautifully, signal special defeated unobstructed, dimension is installed
Protect the plurality of advantages such as convenient.
Accompanying drawing explanation
Fig. 1 is this utility model LTE radio signal filter module preferably embodiment front view;
Fig. 2 is this utility model LTE radio signal filter module preferably embodiment part sectioned view;
Fig. 3 is this utility model LTE radio signal filter module preferably embodiment cover plate schematic diagram.
Wherein, being simply described as follows of symbol in accompanying drawing:
1~substrate;2~LET signal resonant frequencies control bar;3~signal input port adapter;4~signal output
Port connector;5~proximally and distally suppression control element;6~cover plate;101~cavity;102~rib;103~silver
Layer;104~substrate edges;105~groove;106~threaded securing bores;301~signal input and output transmission line.
Detailed description of the invention
In order to more fully understand technology contents of the present utility model, below in conjunction with the accompanying drawings this utility model is carried out further
Illustrate, but be not limited to this.
As shown in Figure 1, Figure 3, a kind of LTE radio signal filter module that the utility model proposes, including: base
Plate 1, substrate 1 is provided with the cavity 101 that at least two interconnects.A plurality of rib 102 it is provided with between cavity 101.Wherein,
Cavity 101 is also known as resonator cavity, and resonator cavity is mainly used to transmit between each frequency produced signal and product is every required
Technical specification, is a kind of microwave transmission line, and when powering up work, produced electric energy and magnetic energy are stored at intracavity portion.LET signal is humorous
Vibration frequency controls bar 2, and LET signal resonant frequency control bar 2 is vertically planted and is fixed on each cavity 101 central part on substrate 1
Position.Signal input port adapter 3, signal input port adapter 3 is connected to LET by signal input and output transmission line 301
Signal resonant frequency controls bar 2, is mainly used in feeder line, namely a transfer wire between link block and antenna, connects
The dual-mode antenna device of module-external.Signal output port adapter 4, signal output port adapter 4 inputs defeated by signal
Go out transmission line 301 to be connected to LET signal resonant frequency and control bar 2, be mainly used in feeder line, namely link block and antenna it
Between a transfer wire, the dual-mode antenna device outside link block.At least one proximally and distally suppresses to control element 5,
Proximally and distally suppression control element 5 be fixedly installed on rib 102, it is not necessary to frequency and index, can be by proximally and distally pressing down
System control element change its size of length realizes.Cover plate 6, cover plate 6 is worked in coordination fixing with substrate 1.Wherein, signal input
Port and output port model are SMA-KFD type port.
As shown in Figure 1 and Figure 2, cavity 101 surface is coated with one layer of silver layer 103.
As it is shown in figure 1, region is provided with a groove 105 between cavity 101 and substrate edges 104.
As it is shown in figure 1, groove 105 is provided with at least one threaded securing bores 106.
As shown in Figure 1, Figure 3, cover plate 7 be provided with multiple with groove 105 on the threaded securing bores 106 worked in coordination.
In sum, this utility model is by using OFDMA technology, and energy contrary frequency Selective intensity and arrowband disturb,
Thus reduce interfering between each subcarrier, improve the availability of frequency spectrum;LTE radio signal filter module is used to need not double
Multiplexer, can simplify radio circuit, system equipment and mobile phone cost relatively low;Use software radio advanced technology, it is easier to realize
Multi-standard base station and multimode terminal, system is easier to upgrading, is more suitable for the big city hot zones at 4G network and first builds
If;Two passage LTE radio signal filter module are used to be more easy to support service in wireless communication network and realize new-generation digital collection
Group, it is possible to effectively cancel out interference, enable a system to work under conditions of full code channel, therefore, spectrum efficiency is high, it is possible to full
Foot wireless network extension demand;This LTE radio signal filter module has two ports and is directly connected to internal letter by feeder line
Number receiving equipment, the other end uses feeder line to be connected to the sending and receiving antenna at outdoor base station launching tower top;These novel two passage LTE
Radio-frequency signal filters module complete machine mainly has that loss is little, overall dimensions are little, be designed beautifully, signal special defeated unobstructed, dimension is installed
Protect the plurality of advantages such as convenient.
Above specific embodiment is only in order to illustrate design of the present utility model, and those of ordinary skill in the art exists
Various deformation and change can be made under design of the present utility model.These deformation and change are included in protection of the present utility model
Within the scope of.