Mohammad Hossein Mazaheri

Enabling On-Demand Low-Power mmWave Repeaters via Passive Beamforming

Tianxiang Li, Mohammad Hossein Mazaheri, Omid Abari

Advancements in computing have enabled emerging applications such as telesurgery, robot automation, holographic telepresence, and extended reality, which require gigabitper-second throughput, sub-millisecond latency, and highly reliable wireless connectivity. Millimeter wave (mmWave) technology has promised to enable such connectivity by operating over a …

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Can IoT Devices be Powered up by Future Indoor Wireless Networks?

Tianxiang Li, Mohammad Hossein Mazaheri, K. Kamalakannan, Haofan Lu et autres

The number of wireless access points (such as WiFi and 5G) is rapidly growing in indoor environments. In this paper, we ask whether these indoor wireless access points can transfer power to IoT devices besides their communication capability. In particular, our vision …

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Enabling Wide Bandwidth in Substrate-Integrated Waveguide Slot Antennas by Using Low-Index Metamaterials

Amir Jafargholi, Romain Fleury, Mohammad Hossein Mazaheri, Jalaledin Tayebpour

This paper presents a solution to overcome the inherently limited bandwidth of substrate-integrated waveguide (SIW) slot antennas. It is analytically shown that by decreasing the permittivity of a dielectric loaded slot antenna, the resulting bandwidth increases significantly, where the widest bandwidth can …

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Bringing Millimeter Wave Technology to Any IoT Device

Mohammad Hossein Mazaheri, Rafael Ruiz, Domenico Giustiniano, Joerg Widmer et autres

With the advancement of the Internet of Things (IoT), many devices will be connected to the Internet, enabling digital twin and smart home applications. However, currently, these IoT devices are operating at lower frequency bands of the wireless spectrum, typically ranging from …

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A Millimeter Wave Backscatter Network for Two-Way Communication and Localization

Haofan Lu, Mohammad Hossein Mazaheri, R. Rezvani, Omid Abari

Millimeter wave (mmWave) technology enables wireless devices to communicate using very high-frequency signals. Operating at those frequencies provides larger bandwidth which can be used to enable high-data-rate links, and very accurate localization of devices. However, radios operating at high-frequencies consume significant amount …

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A Low-Power mmWave Platform for the Internet of Things

Mohammad Hossein Mazaheri, Omid Abari

With the advancement of the Internet of Things (IoT), billions of devices will be connected to the Internet, enabling new applications such as digital twin, augmented reality, and smart home. These applications have placed a huge strain on today's wireless network. mmWave …

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mmWall: A Transflective Metamaterial Surface for mmWave Networks

Kun Woo Cho, Mohammad Hossein Mazaheri, Jeremy Gummeson, Omid Abari et autres

Mobile operators are poised to leverage millimeter wave technology as 5G evolves, but despite efforts to bolster their reliability indoors and outdoors, mmWave links remain vulnerable to blockage by walls, people, and obstacles. Further, there is significant interest in bringing outdoor mmWave …

A Polarisation-Agile Phased-Array Antenna for Satellite and beyond-5G Communications

Kevin A. P. Van Hastenberg, Guilherme Theis, Mohammad Hossein Mazaheri, Wael M. Abdel‐Wahab et autres

In this paper a 8x8 stacked patch array is presented. The antenna elements are dual linearly polarised. By feeding the correct excitation for each antenna port, the array is capable of polarisation reconfigurability. The array is realised on a triangular lattice to …

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5G in the sky

Tianxiang Li, Mohammad Hossein Mazaheri, Omid Abari

millimeter-wave (mmWave) technology provides new opportunities to support high throughput wireless applications by utilizing the high-frequency spectrum. However, due to the short wavelength and narrow beamwidth of mmWave signal, mmWave networks are highly susceptible to blockage. Hence, they enable high throughput links …

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A High-Efficiency 27–30-GHz 130-nm Bi-CMOS Transmitter Front End for SATCOM Phased Arrays

Soroush Rasti Boroujeni, Mohammad Hossein Mazaheri, S. Ituah, Aneta Wyrzykowska et autres

A high-efficiency 27–30 GHz 0.13-${{\mu } \text {m}}$BiCMOS transmitter front end for mobile satellite communication (SATCOM) phased arrays is presented. A system-level analysis for determining the key parameters of the RF front end for the case of a SATCOM user terminal for …

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mmTag

Mohammad Hossein Mazaheri, Alex Chen, Omid Abari

Recent advances in IoT, machine learning and cloud computing have placed a huge strain on wireless networks. In particular, many emerging applications require streaming rich content (such as videos) in real time, while they are constrained by energy sources. A wireless network …

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A Time Modulated Array With Polarization Diversity Capability

Mohammad Hossein Mazaheri, Mohammad Fakharzadeh, Mahmood Akbari, Safieddin Safavi‐Naeini

The Time Modulated Array (TMA) provides multiple radiation beams at different frequencies, by turning the radiating elements on and off. In this paper, we propose to add polarization diversity to a wireless communication link by leveraging the capabilities of the TMA. The …

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