Interphone repeater

A repeater and walkie-talkie technology, applied in the field of radio transmission equipment, can solve problems such as not suitable for mobile, emergency use, and large volume, and achieve the effects of reducing signal interference, reducing volume, and enhancing isolation

Inactive Publication Date: 2013-12-11
QUANZHOU BAOJIE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a walkie-talkie repeater, which solves the problem that the existing walkie-talkie repeater has a large volume and is not suitable for mobile and emergency use

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] refer to Figure 1-Figure 5 As shown, a walkie-talkie repeater includes a housing 1, a transceiver controller (not shown) and a duplexer 2 installed in the housing 1; the transceiver controller and the duplexer 2 are electrically connected, and the duplexer 2 includes a duplex integrated circuit board 21, a transmitting filter 22 and a receiving filter 23 installed on the duplex integrated circuit board 21, and a cover covering the transmitting filter 2...

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Abstract

The invention provides an interphone repeater which solves the problems that an existing interphone repeater is large in size and not suitable for being moved or used in emergency. The interphone repeater comprises a shell, a transceiving controller and a duplexer, wherein the transceiving controller and the duplexer are installed in the shell and are electrically connected. The duplexer comprises a duplex integrated circuit board, a transmitting filter, a receiving filter and a porous metal duplex groove, wherein the transmitting filter and the receiving filter are installed on the duplex integrated circuit board, and the porous metal duplex groove covers the transmitting filter and the receiving filter. The transmitting filter and the receiving filter respectively comprise a plurality of coils. The porous metal duplex groove comprises a plurality of cavities corresponding to the coils in a one-to-one mode. The shell comprises a shell cover and a shell body, wherein the porous metal duplex groove is formed in the shell body.

Description

technical field [0001] The invention relates to a radio transmitting device, in particular to a walkie-talkie repeater. Background technique [0002] The intercom system includes a handheld intercom and a repeater for increasing the communication distance between the handheld intercoms. The existing repeater is generally composed of a transceiver controller and a duplexer. The duplexer, also known as an antenna sharer, is A rather special bidirectional three-terminal filter. The duplexer not only couples the weak receiving signal, but also feeds the larger transmitting power to the antenna, and requires both to complete their functions without affecting each other. The general duplexer is composed of a spiral vibrating cavity. Due to its high operating frequency and great influence on the distribution parameters, it is often made into a sealed sleeve. In order to avoid mutual interference between the receiving signal and the sending signal, the transceiver isolation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04Q5/24H04B1/3827
Inventor 余剑武黄培仁
Owner QUANZHOU BAOJIE ELECTRONICS
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