CN101794928A - Method, decomposing and synthesizing router and terminal for decomposing and synthesizing three-frequency range code division multiple access signal - Google Patents
Method, decomposing and synthesizing router and terminal for decomposing and synthesizing three-frequency range code division multiple access signal Download PDFInfo
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- CN101794928A CN101794928A CN201010001219A CN201010001219A CN101794928A CN 101794928 A CN101794928 A CN 101794928A CN 201010001219 A CN201010001219 A CN 201010001219A CN 201010001219 A CN201010001219 A CN 201010001219A CN 101794928 A CN101794928 A CN 101794928A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
Abstract
The invention discloses a method for decomposing and synthesizing a three-frequency range CDMA (Code Division Multiple Access) signal. When the three-frequency range CDMA signal is decomposed, the common port of a first T-shaped joint receives the three-frequency range CDMA signal, a high-band filter and a low-band filter at both ends of the T-shaped joint separate a high-frequency range signal and a synthesis signal of two remained frequency range signals, the synthesis signal is accessed into the common port of a second T-shaped joint, and a high-band filter and a low-band filter at both ends of the second T-shaped joint separate a medium-frequency range signal and a low-frequency range signal in the synthesis signal. When the three-frequency range CDMA is synthesized, the three frequency range signals are transmitted on the two T-shaped joints in the reverse direction, thereby obtaining the three-frequency range CDMA signal. The invention also discloses a decomposing and synthesizing router and a terminal for decomposing and synthesizing the three-frequency range CDMA signal, thereby decomposing and synthesizing the three-frequency range CDMA signal through the simple structure.
Description
Technical field
The present invention relates to decompose and the composite signal technology, relate in particular to a kind of method of decomposing and synthesizing three frequency range CDMA signals, divide mixer and terminal.
Background technology
Splitter is to be multiple signals with one tunnel signal decomposition, and it has with frequency division road and alien frequencies along separate routes; Mixer is the radiofrequency signal of coming from different transmitters in several roads to be combined into one the road launch to antenna.
Existing at present three frequency range 1.9GHz of code division multiple access (CDMA), 800MHz, the platform of 450MHz supported simultaneously; A CDMA terminal can roam in the network that uses different frequency range; At present, make two shared antennas of frequency range for the signal of 1.9GHz and 800MHz with antenna multicoupler, the 450MH frequency range then adopts independent antenna.Along with the progress of antenna technology, tri-band antenna moves towards practical from research gradually, needs to support the three fens mixers signal of three frequency ranges is synthetic and that decompose when the time comes.
For terminal, the upstream frequency of CDMA 450MHz is 452.5-457.5MHz, and downstream frequency is 462.5-467.5MHz; The upstream frequency of CDMA 800MHz is 824-849MHz, and downstream frequency is 869-894MHz; The upstream frequency of CDMA 1900MHz is 1850-1910MHz, and downstream frequency is 1930-1990MHz.Divide the mixer will be with the synthetic antenna port that is input to of each frequency range upward signal, the signal that the synthetic downstream signal that antenna is received is decomposed into each frequency range be delivered to the receiver of each frequency range.
The branch mixer that uses in the prior art divides mixer as the multiband of utility model patent CN01238523.9, is to be made of filter, complementary type duplexer, mixed electrical bridge and connecting line, and input and output are linked to each other by cable;
And be the little band plate dual-frequency channel merger of shielding box of packing into as utility model patent CN200820040903.2, be applied to antenna for base station, wherein the dielectric constant of the substrate F4B-2 of Cai Yonging is 2.55, adopts wire-wound inductor and distributed capacitance to carry out filtering.
Three present frequency division mixers and multifrequency divide mixer to be applied in the multisystem colocation site more, to be total in the base station and indoor covering system of antenna feeder resource, and the branch mixer of using in the system adopts band pass filter or band stop filter more, and is the cavity body structure form.As utility model patent CN200710028826.9 is a kind of GSM/DCS/WCDMA tri-frequency combiner, it adopts the coaxial cavity structure, replaces traditional applied electric capacity with distributed constant formula electric capacity, DC channel in the mixer and radio frequency path are separated physically, adopt band pass filter to separate the signal of GSM, DCS and WCDMA.The version of band pass filter and band stop filter is complicated, and the insertion loss is relatively large.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of decomposing and synthesizing three frequency range CDMA signals, divides mixer and terminal, and is simple in structure, and the insertion loss is less, can directly apply on the terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
The splitter of a kind of decomposition three frequency range CDMA signals provided by the invention, this splitter comprises: first T connector, first high pass filter, first low pass filter, second T connector, second high pass filter, second low pass filter; Wherein,
First T connector is used for common port and connects antenna-matching circuit, and by three frequency range CDMA signals of antenna-matching circuit reception multiband aerial, the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for isolating the high-frequency band signal of three frequency range CDMA signals of the first T connector common port;
First low pass filter is used for isolating the composite signal of remaining two frequency band signals of three frequency range CDMA signals of common port, and is sent to the common port of second T connector;
Second T connector is used for common port and connects first low pass filter, transmits the two ends of composite signal to T connector, and the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for isolating the intermediate frequency frequency band signals of composite signal;
Second low pass filter is used to isolate the low frequency frequency band signals of composite signal.
In the such scheme, described splitter further as mixer, is specially:
Described first T connector is further used for common port and connects antenna-matching circuit, sends three synthetic frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter, first low pass filter respectively;
Described first high pass filter is further used for the high-frequency band signal is sent to the first T connector common port;
Described first low pass filter is further used for receiving the intermediate frequency frequency band signals of common port of second T connector and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector;
Described second T connector is further used for common port and connects first low pass filter, and to the composite signal of first T connector transmission intermediate-freuqncy signal and low frequency signal, the two ends of T connector connect second high pass filter, second low pass filter respectively;
Described second high pass filter is further used for the intermediate frequency frequency band signals is sent to the common port of second T connector;
Described second low pass filter is further used for the low frequency frequency band signals is sent to the common port of second T connector.
The mixer of a kind of synthetic three frequency range CDMA signals provided by the invention, this mixer comprises: first T connector, first high pass filter, first low pass filter, second T connector, second high pass filter, second low pass filter; Wherein,
First T connector is used for common port and connects antenna-matching circuit, sends three synthetic frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for the high-frequency band signal is sent to the first T connector common port;
First low pass filter is used to receive the intermediate frequency frequency band signals of common port of second T connector and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector;
Second T connector is used for common port and connects first low pass filter, and to the composite signal of first T connector transmission intermediate-freuqncy signal and low frequency signal, the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for the intermediate frequency frequency band signals is sent to the common port of second T connector;
Second low pass filter is used for the low frequency frequency band signals is sent to the common port of second T connector.
The method of a kind of decomposition three frequency range CDMA signals provided by the invention, this method comprises:
The common port of first T connector receives three frequency range CDMA signals, and an end of T connector is isolated the high-frequency band signal by high pass filter; The other end passes through low pass filter, and is linked into the common port of second T connector;
One end of second T connector T connector is isolated intermediate frequency frequency band signals in the composite signal by high pass filter, and the other end is isolated the low frequency frequency band signals of composite signal by low pass filter.
In the such scheme, the T connector of described T connector for constituting by microstrip line or strip line.
In the such scheme, the described exponent number of isolating the high pass filter of high-frequency band signal is 5 rank; And/or,
The described exponent number of isolating the high pass filter of the intermediate frequency frequency band signals in the composite signal is 5 rank; And/or,
The described exponent number of isolating the low pass filter of the composite signal that is left two frequency band signals is 5 rank; And/or,
The exponent number of the low pass filter of the described low frequency frequency band signals of isolating composite signal is 5 rank.
In the such scheme, described method further comprises the method for synthetic three frequency range CDMA signals, be specially: low frequency frequency band signals and the intermediate frequency frequency band signals two ends by second T connector T connector are sent to common port, form the composite signal of low frequency frequency band signals and intermediate frequency frequency band signals; Composite signal and high-frequency band signal are sent to the common port of first T connector by the two ends of first T connector T connector, obtain three frequency range CDMA signals.
The method of a kind of synthetic three frequency range CDMA signals provided by the invention is characterized in that this method comprises:
Low frequency frequency band signals and the intermediate frequency frequency band signals two ends by second T connector T connector are sent to common port, form the composite signal of low frequency frequency band signals and intermediate frequency frequency band signals;
Composite signal and high-frequency band signal are sent to the common port of first T connector by the two ends of first T connector T connector, obtain three frequency range CDMA signals.
A kind of terminal provided by the invention, this terminal by multiband aerial, antenna-matching circuit, branch mixer, transmit and receive part, processing and storage area, microphone, loudspeaker and motor or subject for ridicule etc. are formed, it is characterized in that, described minute mixer is used for the decomposition of three frequency range CDMA signals and synthetic, comprising: first T connector, first high pass filter, first low pass filter, second T connector, second high pass filter, second low pass filter; Wherein,
When decomposing three frequency range CDMA signals:
First T connector is used for common port and connects antenna-matching circuit, and by three frequency range CDMA signals of antenna-matching circuit reception multiband aerial, the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for isolating the high-frequency band signal of three frequency range CDMA signals of the first T connector common port, and exports to the common port of the high-frequency band signal duplexer that transmits and receives part in the terminal;
First low pass filter is used for isolating the composite signal of remaining two frequency band signals of three frequency range CDMA signals of common port, and is sent to the common port of second T connector;
Second T connector is used for common port and connects first low pass filter, transmits the two ends of composite signal to T connector, and the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for isolating the intermediate frequency frequency band signals of composite signal, and exports to the common port of the intermediate frequency frequency band signals duplexer that transmits and receives part in the terminal;
Second low pass filter is used to isolate the low frequency frequency band signals of composite signal, and exports to the common port of the low frequency frequency band signals duplexer that transmits and receives part in the terminal;
When synthesizing three frequency range CDMA signals, described first high pass filter, second high pass filter and second low pass filter oppositely pass high defeated frequent segment signal, intermediate frequency frequency band signals and low frequency frequency band signals respectively, obtain three frequency range CDMA signals at the common port of first T connector.
In the such scheme, described first high pass filter, second high pass filter and second low pass filter oppositely pass high defeated frequent segment signal, intermediate frequency frequency band signals and low frequency frequency band signals respectively, common port at first T connector obtains three frequency range CDMA signals, is specially:
First T connector is used for common port and connects antenna-matching circuit, sends three frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for the high-frequency band signal that the common port of high-frequency band signal duplexer is sent is sent to the first T connector common port;
First low pass filter is used to receive the intermediate frequency frequency band signals of common port of second T connector and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector;
Second T connector is used for common port and connects first low pass filter, and to the composite signal of first T connector transmission intermediate-freuqncy signal and low frequency signal, the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for the intermediate frequency frequency band signals that the common port of intermediate frequency frequency band signals duplexer is sent is sent to the common port of second T connector;
Second low pass filter is used for the low frequency frequency band signals that the common port of low frequency frequency band signals duplexer is sent is sent to the common port of second T connector.
A kind of method of decomposing and synthesizing three frequency range CDMA signals provided by the invention, branch mixer and terminal, when decomposing three frequency range CDMA signals, the common port of first T connector receives three frequency range CDMA signals, the high pass filter at T connector two ends and low pass filter are isolated the composite signal of high-frequency band signal and remaining two frequency band signals, and composite signal is linked into the common port of second T connector, the high pass filter at second T connector T connector two ends and low pass filter are isolated intermediate frequency frequency band signals and the low frequency frequency band signals in the composite signal; When synthesizing three frequency range CDMA signals,, obtain three frequency range CDMA signals with three frequency band signals reverse transfer on above-mentioned two T connectors; Can realize so that to the decomposition of three frequency range CDMA signals and synthetic, simple in structure it is less to insert loss, and can the common terminal antenna resource.
Description of drawings
The structural representation that Fig. 1 realizes decomposing the splitter of three frequency range CDMA signals or synthesizes the mixer of three frequency range CDMA signals for the embodiment of the invention;
Fig. 2 realizes the schematic flow sheet of the method for decomposition three frequency range CDMA signals for the embodiment of the invention;
Fig. 3 is the circuit diagram of high pass filter in the embodiment of the invention;
Fig. 4 is the circuit diagram of low pass filter in the embodiment of the invention;
Fig. 5 realizes the schematic flow sheet of the method for synthetic three frequency range CDMA signals for the embodiment of the invention.
Embodiment
On terminal PC B, adopt the combination of high pass filter and low pass filter, form the decomposition of two paths of signals and synthetic,, need to form the decomposition of three frequency band signals and synthetic by two T type structures for the decomposition of three frequency range CDMA signals and synthetic with T type structure.
Basic thought of the present invention is: when decomposing three frequency range CDMA signals, the common port of first T connector receives three frequency range CDMA signals, and an end of T connector is isolated the high-frequency band signal by high pass filter; The other end is isolated the composite signal of remaining two frequency band signals by low pass filter, and be linked into the common port of second T connector, one end of second T connector T connector is isolated intermediate frequency frequency band signals in the composite signal by high pass filter, and the other end is isolated the low frequency frequency band signals of composite signal by low pass filter; When synthesizing three frequency range CDMA signals, three frequency band signals reverse transfer on above-mentioned two T connectors can be obtained three frequency range CDMA signals.
The T connector of described T connector for constituting by microstrip line.
The present invention is described in further detail below by drawings and the specific embodiments.
The present invention realizes a kind of splitter of decomposition three frequency range CDMA signals, as shown in Figure 1, this splitter comprises: first T connector 11, first high pass filter 12, first low pass filter 13, second T connector 14, second high pass filter 15, second low pass filter 16; Wherein,
First T connector 11 is used for common port and connects antenna-matching circuit, and by three frequency range CDMA signals of antenna-matching circuit reception multiband aerial, the two ends of T connector connect first high pass filter 12, first low pass filter 13 respectively;
First high pass filter 12 is used for isolating the high-frequency band signal of three frequency range CDMA signals of first T connector, 11 common ports;
First low pass filter 13 is used for isolating the composite signal of remaining two frequency band signals of three frequency range CDMA signals of common port, and is sent to the common port of second T connector 14;
Second T connector 14 is used for common port and connects first low pass filter 13, transmits the two ends of composite signal to T connector, and the two ends of T connector connect second high pass filter 15, second low pass filter 16 respectively;
Second high pass filter 15 is used for isolating the intermediate frequency frequency band signals of composite signal;
Second low pass filter 16 is used to isolate the low frequency frequency band signals of composite signal;
Further, described first high pass filter 12 outputs to isolated high-frequency band signal the common port of high-frequency band signal duplexer;
Further, described second high pass filter 15 will be isolated the common port that intermediate frequency frequency band signals in the composite signal outputs to intermediate frequency frequency band signals duplexer;
Further, described second low pass filter 16 will be isolated the common port that low frequency frequency band signals in the composite signal outputs to low frequency frequency band signals duplexer.
According to above-mentioned splitter, the present invention realizes a kind of mixer of synthetic three frequency range CDMA signals, as shown in Figure 1, this mixer comprises: first T connector 11, first high pass filter 12, first low pass filter 13, second T connector 14, second high pass filter 15, second low pass filter 16; Wherein,
First T connector 11 is used for common port and connects antenna-matching circuit, sends three synthetic frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter 12, first low pass filter 13 respectively;
First high pass filter 12 is used for the high-frequency band signal is sent to first T connector, 11 common ports;
First low pass filter 13 is used to receive the intermediate frequency frequency band signals of common port of second T connector 14 and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector 11;
Second T connector 14 is used for common port and connects first low pass filter 13, and to the composite signal of first T connector, 11 transmission intermediate-freuqncy signals and low frequency signal, the two ends of T connector connect second high pass filter 15, second low pass filter 16 respectively;
Second high pass filter 15 is used for the intermediate frequency frequency band signals is sent to the common port of second T connector 14;
Second low pass filter 16 is used for the low frequency frequency band signals is sent to the common port of second T connector 14;
Further, described first high pass filter 12 is used to receive the high-frequency band signal that high-frequency band duplexer common port is sent;
Further, described second high pass filter 15 is used to receive the intermediate frequency frequency band signals that intermediate frequency frequency range duplexer common port is sent;
Further, described second low pass filter 16 is used to receive the low frequency frequency band signals that low frequency frequency range duplexer common port is sent.
First T connector 11 as herein described and second T connector 14 can be made of microstrip line or strip line.
Based on above-mentioned splitter and mixer, the invention provides a kind of method of decomposing and synthesizing three frequency range CDMA signals, this method comprises the method for decomposing three frequency range CDMA signals and the method for synthetic frequency range CDMA signal, wherein, the method of decomposing three frequency range CDMA signals comprises following step as shown in Figure 2:
Step 201: the common port of first T connector receives three frequency range CDMA signals;
Concrete, when decomposing three frequency range CDMA signals, on terminal PC B, constituting two T connectors by microstrip line or strip line, the common port of first T connector is by three frequency range CDMA signals on the antenna-matching circuit reception multiband aerial.
Step 202: an end of first T connector T connector is isolated the high-frequency band signal in the three frequency range CDMA signals of common port by high pass filter;
Described high-frequency band signal is specially the frequency band signals of 1900MHz; The parameter of described high pass filter is to meet the parameter of separating the high-frequency band signal, in order to make the signal Insertion Loss that is higher than 1820MHz to 2020MHz as far as possible little, decay at 900MHz is big as far as possible, the exponent number of high pass filter is high more, near the 900MHz decay is big more, but Insertion Loss also increases thereupon, therefore general 5 rank of adopting; As shown in Figure 3, can form by three filter capacitors and two by-pass inductors;
Further, the described high pass filter of this step outputs to isolated high-frequency band signal the common port of terminal medium-high frequency frequency band signals duplexer.
Step 203: the other end of first T connector T connector is isolated the composite signal of remaining two frequency band signals in the three frequency range CDMA signals of common port by low pass filter, and is sent to the common port of second T connector;
The parameter of described low pass filter is the parameter that meets the composite signal that separates remaining two frequency band signals, in order to make the Insertion Loss that is lower than the signal about 950MHz as far as possible little, decay at 1850MHz is big as far as possible, the exponent number of filter is high more, near the 1850MHz decay is big more, but Insertion Loss also increases thereupon, therefore general 5 rank of adopting; As shown in Figure 4, can form by three inductance and two bypass filter capacitors.
Step 204: an end of second T connector T connector is isolated intermediate frequency frequency band signals in the composite signal by high pass filter;
Described intermediate frequency frequency band signals is specially the frequency band signals of 800MHz; The parameter of described high pass filter is to meet the parameter of separating the intermediate frequency frequency band signals, for the Insertion Loss of the signal that makes 800MHz-920MHz as far as possible little, near 467.5MHz decay is big as far as possible, the exponent number of high pass filter is high more, near 467.5MHz decay big more but, Insertion Loss also increases thereupon, therefore general 5 rank of adopting; As shown in Figure 3, can form by three filter capacitors and two by-pass inductors;
Further, the described high pass filter of this step outputs to isolated intermediate frequency frequency band signals the common port of intermediate frequency frequency band signals duplexer in the terminal.
Step 205: the other end of second T connector T connector is isolated the low frequency frequency band signals of composite signal by low pass filter;
Described low frequency frequency band signals is specially the frequency band signals of 450MHz; The parameter of described low pass filter is to meet the parameter of separating the low frequency frequency band signals, for the Insertion Loss that makes the signal that is lower than 450MHz as far as possible little, near 824MHz decay is big as far as possible, the exponent number of low pass filter is high more, near the 824MHz attenuation outside a channel is big more, but Insertion Loss also increases thereupon, therefore general 5 rank of adopting; As shown in Figure 4, can form by three inductance and two bypass filter capacitors;
Further, the described low pass filter of this step outputs to isolated low frequency frequency band signals the common port of terminal medium and low frequency frequency band signals duplexer.
The method of synthetic frequency range CDMA signal as shown in Figure 5, this method comprises:
Step 501: low frequency frequency band signals and the intermediate frequency frequency band signals two ends by second T connector T connector are sent to common port, form the composite signal of low frequency frequency band signals and intermediate frequency frequency band signals;
Concrete, the low frequency frequency band signals is sent to common port by the end that second T connector T connector described in the step 205 connects low pass filter, and the intermediate frequency frequency band signals is sent to common port by the end that second T connector T connector described in the step 204 connects high pass filter, form the composite signal of low frequency frequency band signals and intermediate frequency frequency band signals.
Frequency band signals of low frequency described in this step and intermediate frequency frequency band signals are respectively from the common port of low frequency frequency band signals duplexer and the common port of intermediate frequency frequency band signals duplexer.
Step 502: composite signal and high-frequency band signal are sent to the common port of first T connector by the two ends of first T connector T connector, obtain three frequency range CDMA signals;
Concrete, the composite signal of second T connector common port is sent to the common port of first T connector by an end of described first T connector T connector connection low pass filter of step 203, and the end that the high-frequency band signal connects high pass filter by described first T connector T connector of step 202 is sent to the common port of first T connector, obtain three frequency range CDMA signals, the antenna-matching circuit that is connected by the common port of first T connector is sent to multiband aerial, sends then.
The signal of high-frequency band described in this step is from the common port of high-frequency band signal duplexer.
Method and branch based on above-mentioned decomposition and synthetic three frequency range CDMA signals, mixer, the present invention also provides a kind of terminal, this terminal is by multiband aerial, antenna-matching circuit, divide, mixer, transmit and receive part, handle and storage area, microphone, composition such as loudspeaker and motor or subject for ridicule, wherein divide decomposition that mixer is used for three frequency range CDMA signals and synthetic, referring to Fig. 1, mixer comprised in described minute: first T connector 11, first high pass filter 12, first low pass filter 13, second T connector 14, second high pass filter 15, second low pass filter 16; Wherein,
When decomposing three frequency range CDMA signals:
First T connector 11 is used for common port and connects antenna-matching circuit, and by three frequency range CDMA signals of antenna-matching circuit reception multiband aerial, the two ends of T connector connect first high pass filter 12, first low pass filter 13 respectively;
First high pass filter 12 is used for isolating the high-frequency band signal of three frequency range CDMA signals of first T connector, 11 common ports, and exports to the common port of the high-frequency band signal duplexer that transmits and receives part in the terminal;
First low pass filter 13 is used for isolating the composite signal of remaining two frequency band signals of three frequency range CDMA signals of common port, and is sent to the common port of second T connector 14;
Second T connector 14 is used for common port and connects first low pass filter 13, transmits the two ends of composite signal to T connector, and the two ends of T connector connect second high pass filter 15, second low pass filter 16 respectively;
Second high pass filter 15 is used for isolating the intermediate frequency frequency band signals of composite signal, and exports to the common port of the intermediate frequency frequency band signals duplexer that transmits and receives part in the terminal;
Second low pass filter 16 is used to isolate the low frequency frequency band signals of composite signal, and exports to the common port of the low frequency frequency band signals duplexer that transmits and receives part in the terminal;
When synthesizing three frequency range CDMA signals, described first high pass filter 12, second high pass filter 15 and second low pass filter 16 oppositely pass high defeated frequent segment signal, intermediate frequency frequency band signals and low frequency frequency band signals respectively, common port at first T connector 11 obtains three frequency range CDMA signals, is specially:
First T connector 11 is used for common port and connects antenna-matching circuit, sends three frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter 12, first low pass filter 13 respectively;
First high pass filter 12 is used for that terminal is transmitted and received the high-frequency band signal that the common port of high-frequency band signal duplexer of part sends and is sent to first T connector, 11 common ports;
First low pass filter 13 is used to receive the intermediate frequency frequency band signals of common port of second T connector 14 and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector 11;
Second T connector 14 is used for common port and connects first low pass filter 13, and to the composite signal of first T connector, 11 transmission intermediate-freuqncy signals and low frequency signal, the two ends of T connector connect second high pass filter 15, second low pass filter 16 respectively;
Second high pass filter 15 is used for terminal is transmitted and received the common port that intermediate frequency frequency band signals that the common port of intermediate frequency frequency band signals duplexer of part sends is sent to second T connector 14;
Second low pass filter 16 is used for terminal is transmitted and received the common port that low frequency frequency band signals that the common port of low frequency frequency band signals duplexer of part sends is sent to second T connector 14.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a splitter that decomposes three frequency range code division multiple access (CDMA) signals is characterized in that this splitter comprises: first T connector, first high pass filter, first low pass filter, second T connector, second high pass filter, second low pass filter; Wherein,
First T connector is used for common port and connects antenna-matching circuit, and by three frequency range CDMA signals of antenna-matching circuit reception multiband aerial, the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for isolating the high-frequency band signal of three frequency range CDMA signals of the first T connector common port;
First low pass filter is used for isolating the composite signal of remaining two frequency band signals of three frequency range CDMA signals of common port, and is sent to the common port of second T connector;
Second T connector is used for common port and connects first low pass filter, transmits the two ends of composite signal to T connector, and the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for isolating the intermediate frequency frequency band signals of composite signal;
Second low pass filter is used to isolate the low frequency frequency band signals of composite signal.
2. splitter according to claim 1 is characterized in that, described splitter further as mixer, is specially:
Described first T connector is further used for common port and connects antenna-matching circuit, sends three synthetic frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter, first low pass filter respectively;
Described first high pass filter is further used for the high-frequency band signal is sent to the first T connector common port;
Described first low pass filter is further used for receiving the intermediate frequency frequency band signals of common port of second T connector and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector;
Described second T connector is further used for common port and connects first low pass filter, and to the composite signal of first T connector transmission intermediate-freuqncy signal and low frequency signal, the two ends of T connector connect second high pass filter, second low pass filter respectively;
Described second high pass filter is further used for the intermediate frequency frequency band signals is sent to the common port of second T connector;
Described second low pass filter is further used for the low frequency frequency band signals is sent to the common port of second T connector.
3. the mixer of synthetic three frequency range CDMA signals is characterized in that this mixer comprises: first T connector, first high pass filter, first low pass filter, second T connector, second high pass filter, second low pass filter; Wherein,
First T connector is used for common port and connects antenna-matching circuit, sends three synthetic frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for the high-frequency band signal is sent to the first T connector common port;
First low pass filter is used to receive the intermediate frequency frequency band signals of common port of second T connector and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector;
Second T connector is used for common port and connects first low pass filter, and to the composite signal of first T connector transmission intermediate-freuqncy signal and low frequency signal, the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for the intermediate frequency frequency band signals is sent to the common port of second T connector;
Second low pass filter is used for the low frequency frequency band signals is sent to the common port of second T connector.
4. method of decomposing three frequency range CDMA signals is characterized in that this method comprises:
The common port of first T connector receives three frequency range CDMA signals, and an end of T connector is isolated the high-frequency band signal by high pass filter; The other end passes through low pass filter, and is linked into the common port of second T connector;
One end of second T connector T connector is isolated intermediate frequency frequency band signals in the composite signal by high pass filter, and the other end is isolated the low frequency frequency band signals of composite signal by low pass filter.
5. method according to claim 4 is characterized in that, the T connector of described T connector for being made of microstrip line or strip line.
6. method according to claim 4 is characterized in that, the described exponent number of isolating the high pass filter of high-frequency band signal is 5 rank; And/or,
The described exponent number of isolating the high pass filter of the intermediate frequency frequency band signals in the composite signal is 5 rank; And/or,
The described exponent number of isolating the low pass filter of the composite signal that is left two frequency band signals is 5 rank; And/or,
The exponent number of the low pass filter of the described low frequency frequency band signals of isolating composite signal is 5 rank.
7. according to the arbitrary described method of claim 4 to 6, it is characterized in that, described method further comprises the method for synthetic three frequency range CDMA signals, be specially: low frequency frequency band signals and the intermediate frequency frequency band signals two ends by second T connector T connector are sent to common port, form the composite signal of low frequency frequency band signals and intermediate frequency frequency band signals; Composite signal and high-frequency band signal are sent to the common port of first T connector by the two ends of first T connector T connector, obtain three frequency range CDMA signals.
8. the method for synthetic three frequency range CDMA signals is characterized in that this method comprises:
Low frequency frequency band signals and the intermediate frequency frequency band signals two ends by second T connector T connector are sent to common port, form the composite signal of low frequency frequency band signals and intermediate frequency frequency band signals;
Composite signal and high-frequency band signal are sent to the common port of first T connector by the two ends of first T connector T connector, obtain three frequency range CDMA signals.
9. terminal, this terminal by multiband aerial, antenna-matching circuit, branch mixer, transmit and receive part, processing and storage area, microphone, loudspeaker and motor or subject for ridicule etc. are formed, it is characterized in that, described minute mixer is used for the decomposition of three frequency range CDMA signals and synthetic, comprising: first T connector, first high pass filter, first low pass filter, second T connector, second high pass filter, second low pass filter; Wherein,
When decomposing three frequency range CDMA signals:
First T connector is used for common port and connects antenna-matching circuit, and by three frequency range CDMA signals of antenna-matching circuit reception multiband aerial, the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for isolating the high-frequency band signal of three frequency range CDMA signals of the first T connector common port, and exports to the common port of the high-frequency band signal duplexer that transmits and receives part in the terminal;
First low pass filter is used for isolating the composite signal of remaining two frequency band signals of three frequency range CDMA signals of common port, and is sent to the common port of second T connector;
Second T connector is used for common port and connects first low pass filter, transmits the two ends of composite signal to T connector, and the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for isolating the intermediate frequency frequency band signals of composite signal, and exports to the common port of the intermediate frequency frequency band signals duplexer that transmits and receives part in the terminal;
Second low pass filter is used to isolate the low frequency frequency band signals of composite signal, and exports to the common port of the low frequency frequency band signals duplexer that transmits and receives part in the terminal;
When synthesizing three frequency range CDMA signals, described first high pass filter, second high pass filter and second low pass filter oppositely pass high defeated frequent segment signal, intermediate frequency frequency band signals and low frequency frequency band signals respectively, obtain three frequency range CDMA signals at the common port of first T connector.
10. terminal according to claim 9, it is characterized in that, described first high pass filter, second high pass filter and second low pass filter oppositely pass high defeated frequent segment signal, intermediate frequency frequency band signals and low frequency frequency band signals respectively, common port at first T connector obtains three frequency range CDMA signals, is specially:
First T connector is used for common port and connects antenna-matching circuit, sends three frequency range CDMA signals by antenna-matching circuit to multiband aerial, and the two ends of T connector connect first high pass filter, first low pass filter respectively;
First high pass filter is used for the high-frequency band signal that the common port of high-frequency band signal duplexer is sent is sent to the first T connector common port;
First low pass filter is used to receive the intermediate frequency frequency band signals of common port of second T connector and the composite signal of low frequency frequency band signals, and composite signal is sent to the common port of first T connector;
Second T connector is used for common port and connects first low pass filter, and to the composite signal of first T connector transmission intermediate-freuqncy signal and low frequency signal, the two ends of T connector connect second high pass filter, second low pass filter respectively;
Second high pass filter is used for the intermediate frequency frequency band signals that the common port of intermediate frequency frequency band signals duplexer is sent is sent to the common port of second T connector;
Second low pass filter is used for the low frequency frequency band signals that the common port of low frequency frequency band signals duplexer is sent is sent to the common port of second T connector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001219A CN101794928A (en) | 2010-01-08 | 2010-01-08 | Method, decomposing and synthesizing router and terminal for decomposing and synthesizing three-frequency range code division multiple access signal |
| PCT/CN2010/076350 WO2011082587A1 (en) | 2010-01-08 | 2010-08-25 | Method, splitter/mixer and terminal for splitting and mixing tri-band code division multiple access signals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001219A CN101794928A (en) | 2010-01-08 | 2010-01-08 | Method, decomposing and synthesizing router and terminal for decomposing and synthesizing three-frequency range code division multiple access signal |
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| CN101794928A true CN101794928A (en) | 2010-08-04 |
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| CN201010001219A Pending CN101794928A (en) | 2010-01-08 | 2010-01-08 | Method, decomposing and synthesizing router and terminal for decomposing and synthesizing three-frequency range code division multiple access signal |
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| WO2011082587A1 (en) * | 2010-01-08 | 2011-07-14 | 中兴通讯股份有限公司 | Method, splitter/mixer and terminal for splitting and mixing tri-band code division multiple access signals |
| CN103022605A (en) * | 2012-12-29 | 2013-04-03 | 南京理工大学 | Miniature microwave quintplexer |
| CN103311623A (en) * | 2012-03-15 | 2013-09-18 | 江苏江佳电子股份有限公司 | Medium combiner |
| CN103532511A (en) * | 2013-10-08 | 2014-01-22 | 桂林市思奇通信设备有限公司 | Combiner with divider function |
| CN105846848A (en) * | 2015-01-15 | 2016-08-10 | 启碁科技股份有限公司 | Signal transmitting and receiving circuit and signal transmitting and receiving method |
| CN108598638A (en) * | 2018-04-13 | 2018-09-28 | 电子科技大学 | The multiplexer structure of suspended substrate stripline is integrated based on medium |
| WO2018205173A1 (en) * | 2017-05-10 | 2018-11-15 | 广东欧珀移动通信有限公司 | Radio frequency circuit switch chip, radio frequency circuit, antenna device, and electronic device |
| CN110868260A (en) * | 2018-08-27 | 2020-03-06 | 李锐洪 | Pulse code modulation pass band filter and method for obtaining multiple filtering pass bands |
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| WO2011082587A1 (en) * | 2010-01-08 | 2011-07-14 | 中兴通讯股份有限公司 | Method, splitter/mixer and terminal for splitting and mixing tri-band code division multiple access signals |
| CN103311623A (en) * | 2012-03-15 | 2013-09-18 | 江苏江佳电子股份有限公司 | Medium combiner |
| CN103022605B (en) * | 2012-12-29 | 2014-11-12 | 南京理工大学 | Miniature microwave quintplexer |
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| CN108598638B (en) * | 2018-04-13 | 2019-10-11 | 电子科技大学 | The multiplexer structure of suspended substrate stripline is integrated based on medium |
| CN110868260A (en) * | 2018-08-27 | 2020-03-06 | 李锐洪 | Pulse code modulation pass band filter and method for obtaining multiple filtering pass bands |
| CN113726362A (en) * | 2021-07-23 | 2021-11-30 | 上海闻泰电子科技有限公司 | Branching unit, control method thereof and communication system |
| WO2023147749A1 (en) * | 2022-02-07 | 2023-08-10 | Oppo广东移动通信有限公司 | Signal transmission apparatus, radio frequency front-end module, and device |
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