Pattern Reconfigurable Antennas at Millimeter-Wave Frequencies: A Comprehensive Survey

Cano, Pablo H. Zapata; Zaharis, Zaharias D.; Yioultsis, Traianos V.; Kantartzis, Nikolaos V.; Lazaridis, Pavlos I.

doi:10.1109/access.2022.3196456

Cited by 20 publications

(7 citation statements)

References 100 publications

(84 reference statements)

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“…Reconfigurable antennas arrays provide more operational flexibility in the form of electrical beam steering or beam shaping, for example [ 3 ]. With electrical beam steering, we control the direction of radiated power and target it to the receiving end, improving reception.…”

Section: Introductionmentioning

confidence: 99%

Design of a Compact and Minimalistic Intermediate Phase Shifting Feed Network for Ka-Band Electrical Beam Steering

Verho,

Chung

2024

Sensors

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Intermediate phase shifting is a footprint- and cost-reduction technique for reconfigurable feed networks. These feed networks are utilized in antenna arrays to perform electrical beam steering. In intermediate phase shifting, a phase shifter is shared between two adjacent antennas. Conventionally, antennas only have individual phase shifters. With shared phase shifters, we reduce the number of components and the footprint by 25%. Consequently, this decreases the price and enables designs at millimeter-wave frequencies where space is limited due to frequency-dependent antenna spacing. This intermediate phase shifting is demonstrated by designing a reconfigurable feed network for the Ka-band that generates a continuous phase shift profile for beam steering. Due to the use of varactors and a novel biasing method, it does not require expensive beamformer integrated chips or lumped components for biasing. The feed network is combined with a 4 × 4 antenna array to demonstrate its beam-steering capabilities. The result is a high-density and minimalistic design that fits in a small volume of 25.6 × 25.6 × 0.95 mm3. With this small antenna array, the main beam is steered at ±40∘ broadside, providing full 1D and restricted 2D steering. It is a potential candidate for wireless sensor and mobile networks.

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Section: Introductionmentioning

confidence: 99%

Design of a Compact and Minimalistic Intermediate Phase Shifting Feed Network for Ka-Band Electrical Beam Steering

Verho,

Chung

2024

Sensors

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“…Phase shifting is considered one of the most crucial functionalities in microwave components. Phase shifters play a key role in many antenna designs such as reflectarray antennas [1], transmittarrays [2], and phased arrays [3], but are also crucial in other mm-wave and THz components and applications like absorbers [4], propagating mode to surface mode conversion [5], or anisotropic polarization converters [6].…”

Section: Introductionmentioning

confidence: 99%

Ultralow-Loss Reconfigurable Phase-Shifting Metasurface in V Band: A Multiobjective Optimization Approach

Zapata Cano,

Vassos,

Zaharis

et al. 2024

IEEE Trans. Antennas Propagat.

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Future generations of satellite and mobile communications at mm-wave frequencies require the use of low-loss and wideband phase-shifting components. Pixelated metasurfaces provide large design versatility and constitute an attractive solution for wave manipulation, such as shifting the phase of an incident wave. However, their design often implies the simultaneous tuning of a large number of geometrical parameters. This article employs an enhanced multi-objective optimization algorithm to design a dynamically reconfigurable metasurface providing ultra-low losses and linear phase response. The presented methodology can be easily employed for different objective functions or technologies, constituting a versatile design strategy for electromechanically reconfigurable devices based on pixelated metasurfaces. A prototype is fabricated based on the optimization outcome, achieving a phase shifter capable of providing a continuous phase shift up to 180 • between 50 and 65 GHz. A piezo-electric actuator is used to dynamically adjust the phase shift with respect to the position of a metallic ground plane placed in front of the metasurface. A linear evolution of the phase w.r.t. the ground plane displacement is obtained while maintaining the losses around 1 dB for the whole frequency range.

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“…Nonetheless, this frequency range poses an engineering hurdle as it leads to a remarkable increase in the propagation losses of the wireless links [2]. To overcome this issue efficiently, the radiating systems should increase their gain and have the ability to reconfigure the direction of their main beam [3]. Therefore, the integration of reconfigurability mechanisms for the radiation pattern is strongly required in the next generation of radiating devices.…”

Section: Introductionmentioning

confidence: 99%

Broadband Parasitic Modeling of Diodes in the Millimeter-Wave Band

Perez Escribano,

Palomares-Caballero,

Padilla

et al. 2024

Preprint

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Pattern Reconfigurable Antennas at Millimeter-Wave Frequencies: A Comprehensive Survey

Cited by 20 publications

References 100 publications

Design of a Compact and Minimalistic Intermediate Phase Shifting Feed Network for Ka-Band Electrical Beam Steering

Design of a Compact and Minimalistic Intermediate Phase Shifting Feed Network for Ka-Band Electrical Beam Steering

Ultralow-Loss Reconfigurable Phase-Shifting Metasurface in V Band: A Multiobjective Optimization Approach

Broadband Parasitic Modeling of Diodes in the Millimeter-Wave Band

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