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High relative bandwidth dual frequency combiner

A frequency combiner and bandwidth technology, applied in the field of high-relative bandwidth dual-frequency combiners, can solve the problems of inability to realize lower-frequency signal splitting and combining, capacitor design, complicated debugging, limited use range, etc. Light, beautiful appearance, the effect of reducing weight

Active Publication Date: 2009-07-08
COMBA TELECOM TECH (GUANGZHOU) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The above-mentioned combination method requires a relatively complicated manufacturing process, and the design and debugging of the capacitor are also relatively complicated, and the controllability is poor.
On the other hand, at present, including the above-mentioned combiners, due to the limitation of the combination method, the broadband that can be realized by most broadband combiners is limited to the higher frequency band, and its relative bandwidth only reaches 93%. Realize the splitting and combining of lower frequency band signals, so the scope of use is only limited to mobile communication systems

Method used

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0021] see figure 1 , the high relative bandwidth dual-frequency combiner of the present invention is the same as the prior art in principle, it has a first path for transmitting ultra-wideband signals, a second path for transmitting relatively narrowband signals and a path for transmitting DC signals The third path, because the first path and the third path share the port, therefore, this combiner has three ports altogether, is the public port 43 of the confluence of three paths respectively, belongs to the first path (ultra-wideband signal) and The first port 41 of the third path (DC signal) and the second port 42 of the second path (relative narrowband signal).

[0022] combine figure 1 and figure 2 , in the first path, band-stop filter 1 is used to transmit ultra-wideband signals while suppressing relatively narrow-band signals, while in the second pa...

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Abstract

The invention discloses a double-frequency combiner with high relative bandwidth, which comprises a band rejection filter arranged on a chamber and used for enabling ultra wide band signals to pass and a band filter used for enabling relative narrow band signals to pass. The band rejection filter comprises a conduction band. The band filter comprises a plurality of harmonic oscillation columns. After the band rejection filter is combined with the band filter, the signals are output through a common port. A combination part is arranged on the harmonic oscillation column of the band filter close to the common port. The combination part is coupled with the conduction band by means of slot coupling to couple signals between the two filters. The double-frequency combiner with high relative bandwidth widens the range of use of the combiner, and overcomes the limitation that the conventional combined can only be used in the mobile communication system; in addition, as sufficient gaps are reserved between the internal parts, the power capability is improved. Furthermore, the invention has the advantages of high electric indices, low cost, simple process and the like.

Description

【Technical field】 [0001] The invention relates to signal splitting and combining technology, in particular to a dual-frequency combiner with high relative bandwidth. 【technical background】 [0002] At present, the development of communication technology is changing with each passing day. In order to share resources, reduce system cost, reduce volume and weight, multiple systems and multiple frequency bands share the antenna feeder system, which is more and more widely used. Therefore, multi-system, multi-band splitting and combining technology has become an important part of the development of communication technology. [0003] The frequency band of most combiners is relatively narrow, and the relative bandwidth is only 15%-25%, or even lower, which limits the application of the combiner to a certain extent. A broadband combiner that has appeared recently can divide and combine multiple signals of different frequency bands. [0004] In a series of published or unpublished ...

Claims

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Application Information

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IPC IPC(8): H01P1/213
Inventor 郭春波蒋敬侃徐华
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD
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