CN101777694B - Novel interphone large-power active antenna - Google Patents
Novel interphone large-power active antenna Download PDFInfo
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- CN101777694B CN101777694B CN200910226308A CN200910226308A CN101777694B CN 101777694 B CN101777694 B CN 101777694B CN 200910226308 A CN200910226308 A CN 200910226308A CN 200910226308 A CN200910226308 A CN 200910226308A CN 101777694 B CN101777694 B CN 101777694B
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Abstract
The invention discloses a interphone high-power active antenna, which comprises a DC/AC circuit combiner, an active antenna amplifier and an antenna, wherein the DC/AC circuit combiner and the active antenna amplifier are respectively provided with high-frequency signal ends and DC power supply ends, the active antenna amplifier is arranged on the antenna, and signals and power supplies between the DC/AC circuit combiner and the active antenna amplifier are simultaneously transmitted through coaxial cables. The invention has the advantages that the active antenna amplifier of the novel interphone antenna is arranged on the antenna, the large-power signals are transmitted onto the antenna without consumption, and highest receiving and sending efficiency can be obtained at an antenna port, so the transmission efficiency can be improved, the output power can reach 35 w, the receiving sensitivity can be higher than or equal to 40 DB, and the invention can be applicable to longer communication distance. On the basis of the original hand-hold interphone, the invention can be expanded into an on-vehicle antenna and a base station antenna, and the transmission effect of the invention can be comparable to that of the on-vehicle antenna and the base station antenna.
Description
Technical field
The present invention relates to communication field, specifically is a kind of intercom active antenna with high-power amplification and gain of received signal amplification.
Background technology
Existing intercom; Generally be to connect in addition power amplification of antenna amplifier antennafire at the delivery outlet of intercom; Be connected at a distance through coaxial feeder between antenna amplifier antennafire and the antenna; Maximum like this unfavorable factor is that antenna amplifier antennafire exists serious decay to the feeder line between the antenna, causes effectiveness lower, and the communication distance that is suitable for is shorter.
Summary of the invention
It is higher to the purpose of this invention is to provide a kind of efficiency of transmission, can avoid the loss in the feeder line transmission of high-power emission and faint reception signal, is applicable to the novel intercom large-power active antenna of telecommunication.
Technical scheme of the present invention is such: a kind of novel intercom large-power active antenna; Comprise DC/AC mixer, antenna amplifier antennafire and antenna; Above-mentioned DC/AC mixer has first, second high-frequency signal end and first, second power end, and above-mentioned antenna amplifier antennafire has first, second high-frequency signal end and power end; The corresponding respectively antenna port of intercom and the first high-frequency signal end of above-mentioned antenna amplifier antennafire of being connected in of first, second high-frequency signal end of above-mentioned DC/AC mixer; First, second power end of above-mentioned DC/AC mixer connects the power end of a direct current power supply and above-mentioned antenna amplifier antennafire respectively, and the second high-frequency signal end of above-mentioned antenna amplifier antennafire connects above-mentioned antenna; Above-mentioned antenna amplifier antennafire is arranged on the above-mentioned antenna, is connected through a coaxial feeder jointly between the second high-frequency signal end of above-mentioned DC/AC mixer and the first high-frequency signal end of above-mentioned antenna amplifier antennafire and between the power end of the second source end of above-mentioned DC/AC mixer and above-mentioned antenna amplifier antennafire.
Above-mentioned antenna amplifier antennafire is provided with detecting circuit, DC switch and transceiver toggle switch; Above-mentioned detecting circuit and above-mentioned DC switch are connected between the second high-frequency signal end and above-mentioned transceiver toggle switch of above-mentioned DC/AC mixer successively, are respectively arranged with between above-mentioned transceiver toggle switch and the above-mentioned antenna to receive amplifying circuit and emission amplifying circuit.
Above-mentioned emission amplifying circuit comprises the little band match circuit of the buffer circuit, exciting circuit, power amplifier and the emission that are connected in successively between above-mentioned transceiver toggle switch and the above-mentioned antenna.
The two ends of above-mentioned buffer circuit also are connected to the APC automatic trimming circuit.
Above-mentioned reception amplifying circuit comprises the little band match circuit of the reception that is connected in successively between above-mentioned antenna and the above-mentioned transceiver toggle switch, RF low noise amplifier, high pass filter and reception protective circuit.
After adopting such scheme; Beneficial effect of the present invention is following: antenna amplifier antennafire of the present invention is arranged on the antenna, and high-power signal does not have consumption and is transferred on the antenna, can obtain the highest sending and receiving efficient at antenna port; Thereby improved efficiency of transmission; Power output can reach 35w, and receiving sensitivity >=4DB is applicable to communication distance far away.On the basis of original hand-held intercom, widenable to vehicle-mounted, base station, its laser propagation effect can compare favourably with vehicle-mounted, base station.And, at the two ends of buffer circuit and be connected to the APC automatic trimming circuit, can effectively control the equilibrium of the power in the band.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
A kind of novel intercom antenna of the present invention, as shown in Figure 1, comprise DC/AC mixer 1, antenna amplifier antennafire 2, antenna 3 and coaxial feeder 4.DC/AC mixer 1 has first, second high-frequency signal end 1A, 1B and first, second power end 1C, 1D, and antenna amplifier antennafire 2 has first, second high- frequency signal end 2A, 2B and power end 2C; The corresponding respectively antenna port of intercom and the first high-frequency signal end 2A of antenna amplifier antennafire 2 of being connected in of first, second high-frequency signal end 1A of DC/ AC mixer 1,1B; First, second power end 1C of DC/ AC mixer 1,1D connect the power end 2C of a direct current power supply and antenna amplifier antennafire respectively, and the second high-frequency signal end 2B of antenna amplifier antennafire 2 connects antenna 3; Be connected through coaxial feeder 4 jointly between the second high-frequency signal end 1B of DC/AC mixer and the first high-frequency signal end 2A of antenna amplifier antennafire and between the power end 2C of the second source end 1D of DC/AC mixer and antenna amplifier antennafire; Antenna amplifier antennafire 2 is arranged on the antenna 3 and (is positioned at the bottom of antenna 3).
As shown in Figure 2; Antenna amplifier antennafire 2 is provided with detecting circuit 21, DC switch 22 and transceiver toggle switch 23; Detecting circuit 21 and DC switch 22 are connected between the second high-frequency signal end 2B and transceiver toggle switch 23 of DC/AC mixer successively, are respectively arranged with between transceiver toggle switch 23 and the antenna 3 to receive amplifying circuit 24 and emission amplifying circuit 25.
Receive amplifying circuit 25 and comprise the little band match circuit of the reception that is connected in successively between antenna 3 and the transceiver toggle switch 23 251, RF low noise amplifier 252, high pass filter 253 and reception protective circuit 254.
The power end 2C of antenna amplifier antennafire is connected respectively to the power end of DC switch 22, buffer circuit 241, exciting circuit 242, power amplifier 243 and RF low noise amplifier 252, for DC switch 22, buffer circuit 241, exciting circuit 242, power amplifier 243 and RF low noise amplifier 252 provide working power.
The emission workflow: high-frequency signal is taken from the antenna port of intercom; Input to the first high-frequency signal end 1A of DC/AC mixer 1 by the antenna port of intercom; Reach the first high-frequency signal end 2A of antenna amplifier antennafire 2 by the second high-frequency signal end 1B of DC/AC mixer 1; Carry out automatic detection, control emission by detecting circuit 21, DC switch 22 and transceiver toggle switch 23 again; Through the equilibrium of the power in the APC automatic trimming circuit 245 control band, this high-frequency signal respectively through buffer circuit 241, exciting circuit 242, power amplifier 243 and launch that little band match circuit 244 cushions, excitation, power amplification and little band coupling, at last by antenna 3 to space radiation.
Receive workflow: antenna 3 inserts electric wave signal; Amplify through receiving little band match circuit 251 entering RF low noise amplifiers 252;, high pass filter 253 signal is delivered to transceiver toggle switch 23 after carrying out filtering again by receiving protective circuit 254; Signal is sent to DC switch 22, detecting circuit 21 and DC/AC mixer 1 by transceiver toggle switch 23 more successively, and this signal separates at DC/AC mixer 1 automatically, after in the antenna port input intercom of intercom.
Claims (5)
1. intercom large-power active antenna; It is characterized in that: comprise DC/AC mixer, antenna amplifier antennafire and antenna; Above-mentioned DC/AC mixer has first, second high-frequency signal end and first, second power end, and above-mentioned antenna amplifier antennafire has first, second high-frequency signal end and power end; The corresponding respectively antenna port of intercom and the first high-frequency signal end of above-mentioned antenna amplifier antennafire of being connected in of first, second high-frequency signal end of above-mentioned DC/AC mixer; First, second power end of above-mentioned DC/AC mixer connects the power end of a direct current power supply and above-mentioned antenna amplifier antennafire respectively, and the second high-frequency signal end of above-mentioned antenna amplifier antennafire connects above-mentioned antenna; Above-mentioned antenna amplifier antennafire is arranged on the above-mentioned antenna, is connected through a coaxial feeder jointly between the second high-frequency signal end of above-mentioned DC/AC mixer and the first high-frequency signal end of above-mentioned antenna amplifier antennafire and between the power end of the second source end of above-mentioned DC/AC mixer and above-mentioned antenna amplifier antennafire.
2. a kind of intercom large-power active antenna according to claim 1; It is characterized in that: above-mentioned antenna amplifier antennafire is provided with detecting circuit, DC switch and transceiver toggle switch; Above-mentioned detecting circuit and above-mentioned DC switch are connected between the second high-frequency signal end and above-mentioned transceiver toggle switch of above-mentioned DC/AC mixer successively, are respectively arranged with between above-mentioned transceiver toggle switch and the above-mentioned antenna to receive amplifying circuit and emission amplifying circuit.
3. a kind of intercom large-power active antenna according to claim 2 is characterized in that: above-mentioned emission amplifying circuit comprises the little band match circuit of the buffer circuit, exciting circuit, power amplifier and the emission that are connected in successively between above-mentioned transceiver toggle switch and the above-mentioned antenna.
4. a kind of intercom large-power active antenna according to claim 3 is characterized in that: the two ends of above-mentioned buffer circuit also are connected to the APC automatic trimming circuit that automatic phase is controlled.
5. a kind of intercom large-power active antenna according to claim 2 is characterized in that: above-mentioned reception amplifying circuit comprises the little band match circuit of the reception that is connected in successively between above-mentioned antenna and the above-mentioned transceiver toggle switch, RF low noise amplifier, high pass filter and reception protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910226308A CN101777694B (en) | 2009-11-16 | 2009-11-16 | Novel interphone large-power active antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910226308A CN101777694B (en) | 2009-11-16 | 2009-11-16 | Novel interphone large-power active antenna |
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| Publication Number | Publication Date |
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| CN101777694A CN101777694A (en) | 2010-07-14 |
| CN101777694B true CN101777694B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910226308A Active CN101777694B (en) | 2009-11-16 | 2009-11-16 | Novel interphone large-power active antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420623B (en) * | 2011-08-26 | 2014-11-05 | 奇瑞汽车股份有限公司 | Transmission method for power supply signals and radiogram radio-frequency signals as well as antenna amplifier |
| CN104243062B (en) * | 2014-08-27 | 2017-05-10 | 京信通信系统（中国）有限公司 | Uplink system and method and system for improving performance of uplink system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0625833A1 (en) * | 1993-05-17 | 1994-11-23 | Sony Corporation | Transmission power control of mobile station in a mobile radio telephone system |
| CN1503587A (en) * | 2002-09-30 | 2004-06-09 | 安德鲁股份公司 | Active antenna array and system for wave beam formation |
| CN101166266A (en) * | 2006-10-19 | 2008-04-23 | 周叔一 | Secure visual bidirectional monitoring system for railway cross |
| CN101488766A (en) * | 2008-01-15 | 2009-07-22 | 西门子（中国）有限公司 | Radio frequency signal transmission circuit and radio frequency signal transmission method |
| CN201540956U (en) * | 2009-11-16 | 2010-08-04 | 福建省泉州华鸿通讯有限公司 | Novel interphone high-power active antenna |
-
2009
- 2009-11-16 CN CN200910226308A patent/CN101777694B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0625833A1 (en) * | 1993-05-17 | 1994-11-23 | Sony Corporation | Transmission power control of mobile station in a mobile radio telephone system |
| CN1503587A (en) * | 2002-09-30 | 2004-06-09 | 安德鲁股份公司 | Active antenna array and system for wave beam formation |
| CN101166266A (en) * | 2006-10-19 | 2008-04-23 | 周叔一 | Secure visual bidirectional monitoring system for railway cross |
| CN101488766A (en) * | 2008-01-15 | 2009-07-22 | 西门子（中国）有限公司 | Radio frequency signal transmission circuit and radio frequency signal transmission method |
| CN201540956U (en) * | 2009-11-16 | 2010-08-04 | 福建省泉州华鸿通讯有限公司 | Novel interphone high-power active antenna |
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| CN101777694A (en) | 2010-07-14 |
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