Local Oscillator Phase Shifting and Harmonic Mixing-Based High-Precision Phased Array for 5G Millimeter-Wave Communications

Yang, Binqi; Yu, Zhiqiang; Zhang, Ruoqiao; Zhou, Jianyi; Wang, Hong

doi:10.1109/tmtt.2019.2899598

Cited by 43 publications

(17 citation statements)

References 28 publications

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“…Based on the methods to phase each antenna element, we can divide beamforming architectures for 5G wireless systems into three types: analog beamforming [28]- [37], full-digital beamforming [38]- [40], and hybrid beamforming [41]- [46] [see Fig. 4].…”

Section: A System Architecturementioning

confidence: 99%

“…2(a). Depending on the location of the analog phase shifting performed in the system, it can be categorized into intermediate frequency phase shifting [31], local oscillator (LO) phase shifting [28], and radio frequency (RF) phase shifting [32], [33]. The phase-shifting can be realized by utilizing digitally-controlled phase shifters, such as a 6-bit phase shifter, or static analog beamforming structures, such as the Butler matrices [34], Blass matrices [35], and lenses [36].…”

Section: A System Architecturementioning

confidence: 99%

“…Improvements in this conventional calibration have been presented to reduce the measurement time [137], [138]. Similar to the REV calibration method, switching the phase shifter in each channel between 0 and 180 degrees by following a certain order can also achieve system calibration [28], [139], [140]. It makes the measurement faster.…”

Section: A Pattern Measurement and Calibrationmentioning

confidence: 99%

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Section: A System Architecturementioning

confidence: 99%

Section: A System Architecturementioning

confidence: 99%

Section: A Pattern Measurement and Calibrationmentioning

confidence: 99%

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“…If the phase shifters are placed in the LO path before mixing, it is referred as LO path beamforming (Figure 6B). [39][40][41] In the RF chain, any phase shift applied to the LO signal will emerge in the down-converted signal due to mixing, but any losses incurred in the phase shifter will not affect the down-converted signal. This characteristic is the main advantage of the LO path beamforming which improves the overall gain performance of the system.…”

Section: Analog Beamformingmentioning

confidence: 99%

Review and comparison of different limited scan phased array antenna architectures

Singhal

Hasan

2021

Circuit Theory & Apps

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Phased array antenna or beamformer plays key role in many emerging wireless applications, be it industrial such as 5G wireless communication and RADAR technology or commercial such as autonomous driving, imaging, and so on. Depending upon the application and design constraints such as power, area, and hardware cost, there are many architectures available in the open literature for designing a beamformer. The power consumption and the hardware cost become the two major limiting factors while choosing the specific phased array antenna for commercial applications. In order to reduce the hardware cost, designers try to limit the scanning range of the beamformer by reducing the number of control elements generally the phase shifters. These beamformers are called limited scan phased array antenna (LSPAA). These are proving to be useful in many commercial applications due to their reduced design cost. In this paper, we provide a detailed review of the various architectures present in literature for LSPAA design and a comparison between several of them with respect to scanning range, sidelobe level (SLL), and so on. In addition, a figure-of-merit is also proposed for comparison between the different architectures.

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“…Moreover, the phase shifter can be designed as bi‐directional, thus can be shared in between transmitter and receiver to use half amount of phase shifters. The phase shifter generally has 5‐bit to 8‐bit phase shifting resolution, which is much higher than binary switching state of p‐i‐n diodes 15 . Compared with other phase shifter, such as digital phase shifter 16,17 and vector‐sum phase shifter, 18 the reflection‐type phase shifting structure is low cost, low‐power consumption and continuously phase shifting range.…”

Section: Introductionmentioning

confidence: 99%

The low‐cost polarization reconfigurable phased array based on high‐precision full 360° phase shifter

Zhang

Yang

et al. 2021

Int J RF Microw Comput Aided Eng

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In this article, to adapt the various polarization of user terminal, a 1 × 4 C‐band high‐integrated polarization reconfiguration phased array based on phase shifter matrix is presented. The phased array combined with polarization reconfiguration antenna elements exhibits the desired beamforming patterns and achieves beam polarization reconfiguration simultaneously. Based on the technique of the shunted microstrip open‐stub and equalizing resistor, a high‐precision reflection‐type phase shifter with full 360° continuous phase tuning range is designed for this phased array in this article. The prototype of the polarization reconfiguration phased array is designed and fabricated. Measured results show that proposed phased array works at 5.8 GHz and achieves 21.4% (1.2 GHz) impedance bandwidth and 14.3% (800 MHz) 3 dB axial ratio bandwidth. The beam coverage range at 5.8 GHz is more than 64° with 0.2° beam steering resolution.

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Local Oscillator Phase Shifting and Harmonic Mixing-Based High-Precision Phased Array for 5G Millimeter-Wave Communications

Cited by 43 publications

References 28 publications

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

The Role of Millimeter-Wave Technologies in 5G/6G Wireless Communications

Review and comparison of different limited scan phased array antenna architectures

The low‐cost polarization reconfigurable phased array based on high‐precision full 360° phase shifter

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