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Duplexer

A duplexer and transmit filter technology, applied in the field of wireless communication, can solve problems such as heavy workload, and achieve the effects of reducing production cycle, avoiding nonlinear effects, and reducing the number of solder joints

Inactive Publication Date: 2009-07-01
ALLRIZON TONGGUANG COMM EQUIP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can improve the intermodulation level to a certain extent, there will still be a large number of unqualified ratios and rework in production. The traditional rework is to open the entire duplexer cover, remove the parts inside for cleaning or Change, such a workload is very large

Method used

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing.

[0020] Such as figure 1 , 2 As shown, a duplexer includes a cover plate, and a transition cavity 2, a transmitting filter 3, and a receiving filter 4 in the antenna port 1 covered by the cover plate, and a coupling component is arranged in the transition cavity 2, The cover plate is provided with an opening at a position corresponding to the antenna port, and an independent intermodulation cover plate 5 is crimped on the opening, and the two ends of the transmission rod 6 of the coupling assembly are respectively fixed on the inner core of the antenna port joint and the On the resonance column of the transition cavity.

[0021] The intermodulation cover plate 5 covers the transition cavity 2, at least one resonant cavity of the transmitting filter 3 and at least one resonant cavity of the receiving filter 4; the transmission rod 6 is a silver-plated copper sheet, and the ...

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Abstract

The invention relates to a diplexer which comprises a cover plate, a transition chamber, a transmitting filter and a receiving filter, wherein the transition chamber, the transmitting filter and the receiving filter are arranged inside an antenna port which is covered by the cover plate. A coupling assembly is arranged inside the transition chamber. A notch is formed on the cover plate in the position opposite to the antenna port. An independent intermodulation cover plate is pressed and connected on the notch. The two ends of the transmission rod of the coupling assembly are fixed on the inner core of an antenna port adapter and the resonance column of the transition chamber, respectively. Compared with the prior art, the diplexer can effectively increase the rate of qualified intermodulation of the product.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a duplexer. Background technique [0002] Wireless microwave refers to signals in the frequency band between 300MHz (1MHz=1.0×10E6Hz) and 300GHz (1GHz=1.0×10E9Hz). Wireless communication originated from the radar technology developed in World War II. It has been widely used in long-distance communication networks all over the world. Due to its wide frequency bandwidth and large capacity, it can be used for the transmission of various telecommunication services, such as telephone, telegraph , data, fax and color TV, etc., its share in network erection is accelerating. Therefore, the research of microwave communication is of great significance to the development of national economy and the satisfaction of social needs. [0003] In a wireless system, the duplexer is a key component, and the antenna splits the transmitting and receiving signals through the duplexer, that is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/56H04B1/58H01P1/213
Inventor 熊明吴晨萍王常春
Owner ALLRIZON TONGGUANG COMM EQUIP SHANGHAI
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