MULTI-LINE PHASE SHIFTER IN MULTI-BAND ANTENNA OF MOBILE COMMUNICATION BASE TRANSCEIVER STATION

摘要

The present invention relates to multiple phase shifters of a multi-band mobile communication base station antenna, A multiple ideal circuit receiving an input signal of a first frequency band and distributing and phase-varying the input signal corresponding to a plurality of radiating elements; A plurality of signals distributed and phase-changed in the multiple anomalous circuits and a plurality of signals of the second frequency band, which are distributed and phase-shifted for a plurality of radiation elements in the other multiple phase shifters from the outside, And a plurality of frequency combining / distributing circuits for combining the plurality of radiating elements with each other and outputting them to the plurality of radiating elements.