An IQ-steering technique for amplitude and phase control of mm-wave signals

Visweswaran, Akshay; Martino, Carmine De; Sirignano, Emilio; Spirito, M.

doi:10.1109/arftg.2015.7381471

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…To simultaneously control the amplitude and phase of the four-element array in the W-band, we use an IQ-steering technique similar to the one described in [20] at Ka-band. A schematic overview of this IQ-steering technique is shown in Fig.…”

Section: A Electronic Amplitude and Phase Control Setupmentioning

confidence: 99%

“…In this paper, we demonstrate a 4x1 W-band (75-110 GHz) scanning lens phased array prototype using the combination of a piezo-electric motor and an electronic phase steering architecture based on low frequency IQ-mixers and multipliers [20]. The design, simulated performance and fabrication of the lens array prototype is described in Section II.…”

Section: Introductionmentioning

confidence: 99%

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First Demonstration of Dynamic High-Gain Beam Steering With a Scanning Lens Phased Array

et al. 2022

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We report on the first demonstration of dynamic beam steering using a scanning lens phased array. A scanning lens phased array relies on a combination of mechanical and electrical phase shifting to dynamically steer a high-gain beam beyond the grating-lobe free region using a sparse array. These two concepts have been demonstrated separately in the past, here we present, for the first time, a prototype demonstration where active mechanical and electrical phase shifting are combined. For this purpose, we have developed a sparse 4x1 scanning lens phased array at W-band (75-110 GHz) capable of beam steering a directive beam (>30 dBi) towards ± 20°with low grating lobe levels (around -10 dB). The lens array is fed by a waveguide-based leaky-wave feeding architecture that illuminates the lenses with high aperture efficiency over a wide bandwidth, which is required in the proposed scanning lens phased array architecture. The electrical phase shifting has been implemented using IQ-mixers around 15 GHz in combination with x6 multipliers to reach the W-band. The mechanical phase shifting relies on a piezo-electric motor, which is able to achieve displacements of the lens array of 6 mm with an accuracy of a few nanometers. The entire active array is calibrated over the air with an ad-hoc quasi-optical measurement setup. Resulting measurements show excellent agreement with the anticipated performance.INDEX TERMS Beam steering, lens antennas, millimeter waves, phase shifting, phased arrays.This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination.

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Section: A Electronic Amplitude and Phase Control Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

First Demonstration of Dynamic High-Gain Beam Steering With a Scanning Lens Phased Array

et al. 2022

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“…To control the amplitude and phase of the four array elements simultaneously in the W-band, we use an ad-hoc electronics setup similar to the one described in [5]. A 12-18 GHz signal is generated and distributed to four IQ-mixers that allow amplitude and phase control using DC voltages 𝑉 𝐼 and 𝑉 𝑄 .…”

Section: Quasi-optical Calibration and Measurementmentioning

confidence: 99%

“…In this contribution, we demonstrate continuous, dynamic beam steering (±20°) of a high-gain beam (>30 dBi) at W-band (75-110 GHz, with 𝜆 0 defined at 90 GHz). The mechanical phase shifting is achieved with a piezo-electric motor as in [4] and electrical phase shifting is achieved with an ad-hoc electronics setup similar to [5].…”

Section: Introductionmentioning

confidence: 99%