FA/D phase shifter

Abstract

The invention discloses an ultra-wideband FA / D phase shifter, which comprises an outer cavity body, wherein an inner cavity of the outer cavity body is divided into an upper part and a lower part, each of the upper and lower parts is internally provided with a phase shifting module, a transmission line and a medium block, each transmission line is connected with the corresponding phase shifting module, and the medium block is arranged on the corresponding phase shifting module, thereby forming FA / D segment phase shifter in upper and lower arrangement. The FA / D phase shifter is characterized inthat the phase shifting module comprises two strip lines of the same width, the strip lines of the phase shifting module are connected in series and are additionally provided with an isolation resistor, thereby forming a phase shifter difference relationship. The FA / D phase shifter is simple in structure, low in production cost and stable in performance.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a phase shifter in the communication equipment. Background technique [0002] With the rapid development of mobile communication technology, the requirements for base station antennas are getting higher and higher. For new base station antennas used in TD-LTE networks, multi-antenna diversity, power division multiplexing, and beamforming are all important indicators. [0003] The FA / D phase shifter is one of the key components of the TD antenna. Both the FA section and the D section need to realize the phase shift function, which is very difficult to develop. The current FA / D phase shifters generally have problems such as insufficient performance and high cost. The "Journal of Chongqing Institute of Posts and Telecommunications" published in June 2014, Volume 26, Issue 3, published "A Smart Antenna for TD-LTE Electric Adjustment Broadband Phase Shifter " articl...

AI Technical Summary

Problems solved by technology

The current FA / D phase shifters generally have problems such as insufficient performance and high cost. The "Journal of Chongqing Institute of Posts and Telecommunications" published in June 2014, Volume 26, Issue 3, published "A Smart Antenna for TD-LTE Electric Adjustment Broadband Phase Shifter " article, the phase shifter can work in the F section (1880-1920MHz), A section (2010-2025MHz) and D section (2515-2635MHz), the phase shifter is a medium longitudinal sliding type, It has made a useful attempt in the miniaturization and weight reduction of phase shifters, but there are still many ports in phase shifters, and R&D personnel need to continue to improve and improve in terms of performance and cost.

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