Novel interphone large-power active antenna
An active antenna and walkie-talkie technology, applied in the field of communication, can solve problems such as feeder attenuation, low signal transmission efficiency, short communication distance, etc., and achieve the effect of improving transmission efficiency
Active Publication Date: 2012-10-03
FUJIAN QUANZHOU HUAHONG COMM CO LTD
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Problems solved by technology
[0002] The existing walkie-talkies are generally connected to the antenna amplifier at the output port of the walkie-talkie to amplify the power, and the antenna amplifier and the antenna are connected through a coaxial feeder for a long distance. The biggest disadvantage is that the feeder between the antenna amplifier and the antenna has serious Attenuation, resulting in low signal transmission efficiency, and the applicable communication distance is short
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[0012] A novel walkie-talkie antenna of the present invention, such as figure 1 As shown, it includes a DC / AC combiner 1 , an antenna amplifier 2 , an antenna 3 and a coaxial feeder 4 . DC / AC combiner 1 has first and second high frequency signal terminals 1A and 1B and first and second power supply terminals 1C and 1D, and antenna amplifier 2 has first and second high frequency signal terminals 2A and 2B and power supply terminals Terminal 2C; the first and second high-frequency signal terminals 1A and 1B of the DC / AC combiner 1 are respectively connected to the antenna port of the walkie-talkie and the first high-frequency signal terminal 2A of the antenna amplifier 2, and the DC / AC combiner The first and second power supply terminals 1C and 1D of 1 are respectively connected to a DC power supply and the power supply terminal 2C of the antenna amplifier, and the second high-frequency signal terminal 2B of the antenna amplifier 2 is connected to the antenna 3; the second high-...
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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 [0001] The invention relates to the communication field, in particular to a walkie-talkie active antenna with high power amplification and received signal gain amplification. Background technique [0002] The existing walkie-talkies are generally connected to the antenna amplifier at the output port of the walkie-talkie to amplify the power, and the antenna amplifier and the antenna are connected through a coaxial feeder for a long distance. The biggest disadvantage is that the feeder between the antenna amplifier and the antenna has serious Attenuation, resulting in low signal transmission efficiency, and the applicable communication distance is short. Contents of the invention [0003] The purpose of the present invention is to provide a new type of high-power active antenna for walkie-talkie with high transmission efficiency, which can avoid the loss of high-power transmission and weak reception signal in feeder transmission, and is suitable for long-dis...
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IPC IPC(8): H01Q1/24H01Q23/00H04B1/38H04B1/3827
Inventor 陈仁纯
Owner FUJIAN QUANZHOU HUAHONG COMM CO LTD