Phased array antennas have played a very important role in many different areas and
applications. It requires precise excitation of each antenna element by various synthesis …

For successful beam shaping and scanning in phased array radars, it is essential to
precisely set the amplitude and phase of each element channel. However, considerable …

This paper presents experimental results of an initial and in-situ mutual coupling calibration
techniques of an active phased array antenna. The antenna is a dual-polarized 64-element …

In this letter, a coupler integrated microstrip patch linear phased array is proposed as a new
self-calibration system. The proposed coupler placed along the edge of the microstrip patch …

The retrodirective or retroreflective method has been used as a radio-frequency
beamforming method for massive antenna array, for wireless communication systems …

Facing the demand for self-calibration capability in rapidly emerging scalable beamforming
systems, a coupler-switch network (CSN) and an interference cancellation scheme are …

In this article, a self-calibration method for 5G full-digital time-division duplexing (TDD)
beamforming systems is proposed and demonstrated, including the self-calibration for both …

In this paper, we propose a novel technique that integrates the detection of element failures
and the correction of damaged patterns into a systematic process for active phased arrays …

The transmit and receive modules of a large phased array are often calibrated for amplitude
and phase variations by an internal calibration network and an offline characterization of the …

Phased array radars are able to provide highly accurate airplane surveillance and tracking
performance if they are properly calibrated. However, the ambient temperature variation and …