Broadband Hybrid Beamforming Integrated Antenna Array

Abstract

The invention discloses a broadband hybrid wave beam forming integrated antenna array. The integrated antenna array includes a two-way phase-shifting transmit-receive array, an antenna array body, and a control and calibration unit; the two-way phase-shifting transmit-receive array includes one or more same-phase power dividing modules and a plurality of two-way phase-shifting transmit-receive units, the same-phase power dividing modules are used for dividing one-way radio-frequency signals into multi-way radio-frequency signals in a same-phase uniform-amplitude power dividing mode, and each two-way phase-shifting transmit-receive unit includes a radio-frequency transmit-receive front-end module and a orthogonal-composition phase-shifting module, wherein the radio-frequency transmit-receive front-end module is used for amplifying signals of radio-frequency channels, and the orthogonal-composition phase-shifting module is used for adjusting the phase positions and amplitudes of the radio-frequency channels; the antenna array body is used for radiating or transmitting the signals of the various radio-frequency channels; one end of the control and calibration unit is used for controlling and calibrating the beam forming of the whole broadband hybrid wave beam forming integrated antenna array. Through the integrated antenna array, the adjustment accuracy of the signals of the various radio-frequency channels is high, the accurate beam pointing with low minor lobes or without the minor lobes can be formed in a horizontal plane, and the integrated antenna array is more conductive to synchronous communication of multiple users.

Description

technical field [0001] The invention relates to a wireless communication MIMO transceiver array, in particular to design a high-performance broadband hybrid beamforming integrated antenna array, which belongs to the communication multi-beam synthesis application technology. Background technique [0002] In the fifth generation of mobile communication, the data transmission speed between the user terminal and the base station will be greatly increased, therefore, the single-channel communication system will be gradually eliminated, and massive MIMO technology will become the key technology of the fifth generation mobile communication system . However, with the increase in the number of radio frequency channels and the number of antenna arrays, the hardware cost of the communication base station is also increasing significantly. The full digital beamforming base station requires that each antenna array corresponds to a complete radio frequency channel and digital baseband proc...

AI Technical Summary

Problems solved by technology

[0004] However, the phase shifting module in the radio frequency link often becomes the bottleneck restricting the development of the radio frequency link phase shifting. The traditional electric phase shifter or digital phase shifter has the disadvantages of high price, low precision and narrow bandwidth; the vector modulator chip can It has high precision, but currently it is mostly used as a phase shifting module in the low frequency band (less than 2.4GHz)

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