Low-loss high-stability high-intermodulation dual-frequency 4G combiner

Abstract

The invention discloses a low-loss high-stability high-intermodulation dual-frequency 4G combiner. An antenna port N-shaped connector I is installed on the left side of a resonant cavity, and a GSM and DCS port N-shaped connector II and a TDA, TDF and LTE port N-shaped connector III are installed on the right side of the resonant cavity; a plurality of GSM signal high-power resonant capacitors which are coupled with one another, DCS signal high-power resonant capacitors, TDA signal high-power resonant capacitors, TDF signal high-power resonant capacitors, LTE signal high-power resonant capacitors as well as near end and far end suppression control elements for out-of-band spurious signals are installed in the resonant cavity. The combiner can be used as a single filter module as well as a combiner and has the advantages of low loss, high intermodulation, high power capacity, small external dimension, attractive design, smoothness in signal transmission, convenience in installation and maintenance and the like.

Description

technical field [0001] The invention relates to the technical field of sending and receiving signal filtering devices for communication systems, in particular to a dual-frequency 4G combiner with low loss, high stability and high intermodulation. Background technique [0002] After years of development, wireless communication technology has entered the 3G era from the GSM era, and the more advanced 4G network in the future already has a practical technology, and there are also pilot projects in China. The existing types of antennas and transceiver input ports are not Low loss, high intermodulation, and selective combiners still use three-dimensional radiation structures and multi-cavity resonant structures, which are bulky, complex in structure, and difficult to process, which has become a major obstacle to the miniaturization of wireless communication products: the main reason is The radiation conversion space and frequency resonance space on which it is based are f...

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Problems solved by technology

[0002] After years of development, wireless communication technology has entered the 3G era from the GSM era, and the more advanced 4G network in the future already has a practical technology, and there are also pilot projects in China. The existing types of antennas and transceiver input ports are not Low loss, high intermodulation, and selective combiners still use three-dimensional radiation structures and multi-cavity resonant structures, which are bulky, complex in structure, and difficult to process, which has become a major obstacle to the miniaturization of wireless communication products: the main reason is The radiation conversion space and frequency resonance space on which it is based are free air with an electrolyte constant close to 1 and minimal loss

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